This page introduces companies that deal in flexible PCBs. Each company offers different types of flexible PCBs and services with its own unique strengths.
3 Recommended Flex PCBs Manufacturers
by Industry
Selecting a partner that supports the full workflow—from design through production—can reduce cost and lead time. The three companies below offer distinct capabilities in their respective domains.
For Smartphones & Wearable Devices
Sanyo
Source: Sanyo Official Website (https://www.landingpage-synergy.com/6Ik8Yr0D/)
Supports multilayer flexible PCBs suitable for compact designs, with a minimum pitch of 20 µm.
Manufactures using materials such as polyimide and Liquid Crystal Polymer (LCP), enabling flexibility, heat resistance, and high-frequency characteristics.
How to choose a flexible circuit board manufacturer
FPC manufacturers should not decide solely based on price or minimum processing values in the catalog,Design proposal that meets usage conditions, quality assurance during mass production, and supply system from prototyping to mass production.We will compare and select them based on the same specifications. It is especially important to share the bending conditions before requesting a quote when using them in a movable part.
First, decide on the bending method and the usage environment.
FPCs are designed for different applications: those bent once during assembly and those that repeatedly bend during operation. The suitable materials, copper foil, and laminate configurations differ for each. Organizing the following conditions before sending drawings will make it easier to compare manufacturer proposals.
Key Checkpoints by Use Case
Purpose/Requirements
Conditions to communicate first
Confirm with the manufacturer
Bend and incorporate it once
Shape at completion, bending position, bending radius/angle, wiring prohibition areas
Is it possible to review the design of the bent part, including the recommended configuration and assembly process?
bend repeatedly
Bending radius, angle, and direction, operating frequency, expected lifespan, temperature
under the same conditionsFlexural fatigue evaluationAchievements and Evaluation Methods
High-speed transmission, high current
Impedance, frequency, current, allowable temperature rise, mounting conditions
Material, copper thickness, and lamination proposals, including analysis and measurements, within the scope of warranty.
Automotive, medical, and high-reliability applications
Usage environment, required service life, applicable standards, required inspections and submission documents
Mass production achievements in the target field, certifications, traceability, change management
5 essential items for comparing quotes
01
Does the requirements specification match the mass production capability?
We confirm whether mass production is possible by combining not only line width/spacing, hole diameter, and number of layers, but also the desired materials, copper thickness, and surface treatment.Separate the limit values during trial production and the control values during mass production.Listening is the key.
02
Can you consult on design and DFM review?
Wiring in bent sections, coverlay openings, reinforcing plates, via placement, and outline tolerances directly impact defects and costs. Companies that confirm manufacturability around the time of quotation and can propose alternative configurations are better positioned to minimize rework on specifications.
03
Whether the quality assurance content is suitable for the intended use.
We will confirm applicable standards/classes such as IPC, visual/electrical inspection, cross-section confirmation, reliability testing, lot traceability, and communication methods for process changes. This includes not only the presence of certifications, but alsoWhich tests will guarantee this specification?I will flesh it out.
04
Can we proceed with the same assumptions from prototyping to mass production?
We will confirm the manufacturing sites for prototyping and mass production, the scope of in-house production and outsourcing, molds and jigs, minimum lot size, standard lead time, and capacity for increased production. Even if prototyping is fast, re-evaluation is necessary if the mass production process or material procurement is separate.
05
Is the total cost and the response to defects clear?
We will compare not only the unit price but also the initial costs, inspection and jig costs, assembly, shipping, and design change expenses. Confirming the point of contact, analysis system, and response deadline will also make it easier to assess the risk of stoppage after launch.
Information to gather before inquiring
Purpose, and whether it's static bending or repeated bending
Drawings/Gerber data and prototype quantity/mass production plan
Number of layers, outer dimensions, line width/spacing, hole diameter, material, copper thickness
After organizing the conditions, let's compare each company's response specifications, track record, and scope of consistent support.
List of Companies Dealing in Flexible PCBs
Aisan Electric Co., Ltd.
Aisan Electric offers flexible PCBs manufactured using a unique method different from conventional processes. This reduces manufacturing costs and lower environmental impact.
FPC specifications
Number of Layers
Single-sided
Minimum Pitch
200 micrometers
Base Materials
Polyimide, PET
Minimum Finished Hole Diameter
Not listed on the official website
Track record
These cost-efficient flexible PCBs have been used in various industries, including automotive, industrial equipment, home appliances, and OA (office automation) devices. Product demonstrations are held at the first floor of their Tokyo store.
Recommended case
Those who want to mass-produce while reducing environmental impact and manufacturing costs
Cases where you want to adopt single-sided FPC made of PET
When considering applications for automotive electronics, home appliances, and office equipment
Company Information –PDK
Address
1-12-3 Sotokanda, Chiyoda-ku, Tokyo
Business Hours
10:00 AM – 6:45 PM (Closed Sundays and public holidays)
Atsugi Micro capable of patterning multilayer structures by processing metal and resin films directly onto PCBs. They also supports custom-developed patterning on flexible PCBs and offers compatibility with a wide range of materials and work sizes.
FPC specifications
Number of Layers
Single-layer and multilayer (e.g., ITO, MAM, resin stacks)
With a strong focus on both quality and on-time delivery, Art Electronics offers end-to-end support from design through assembly. Through prior consultations, they carry out preliminary planning and propose the most suitable board configuration and specifications for each project.
FPC specifications
Number of Layers
1-layer, 2-layer, multi-layer (up to ~8 layers)
Minimum Pitch
Standard 0.1mm/0.1mm or more (0.075mm/0.075mm also available)
Base Materials
PI (polyimide), LCP (liquid crystal polymer)
Copper foil + adhesive layer + PI (polyimide) *Tri-layer material
Copper foil + PI (polyimide) or LCP (liquid crystal polymer) *Dual layer material
Base Thickness (PI)
12.5µm, 25µm, 50µm
Copper Foil Thickness
12µm, 18µm, 35µm, 70µm
Coverlay Thickness
12.5µm, 25µm, 30µm, 40µm (determined by copper foil thickness)
Surface Finishes
Electroless gold flash / flux (to be discussed separately) / electrolytic gold plating (Bonding gold plating is also available, to be discussed separately)
Minimum Finished Hole Diameter
Not listed on the official website
Track record
They support FPCs using high-frequency-capable polymers and silk-screened layers. Art Denshi also provides budget-conscious solutions such as switching to laser or NC machining to reduce tooling costs based on customer requirements.
Recommended case
If you want to outsource everything from FPC specification selection to implementation
For those who want to proceed from design to implementation with a short delivery time
Cases requiring LCP and high-frequency compatible FPCs
Inatron is an electronics trading company specializing in both domestic and international sales of semiconductors and electronic components, as well as contract manufacturing services. In addition to flexible PCB, they handle cutting-edge devices such as large BGAs and aluminum PCBs. Their comprehensive post-assembly support is a key advantage.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who want to produce small quantities of a wide variety of FPCs while considering costs
Case of integrating substrate manufacturing, component procurement, and mounting
If you want to request assembly of large and special circuit boards
Company Information –PDK
Address
6135-1 Minamiminowa Village, Kamiina-gun, Nagano, Japan
Eight Kougyou holds certifications from organizations such as JAXA(Japan Aerospace Exploration Agency), the Ministry of Defense, and the aerospace industry, as well as ISO standards. Known for high-quality PCBs and responsiveness. They are capable of supporting compact, lightweight devices and high-reliability applications.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer (3–6 layers)
SR Ink for PC (Nippon Politech Co., Ltd.) Approx. 20 µm
Base Materials
Polyimide film, copper foil
Minimum Finished Hole Diameter
Not listed on the official website
Track record
In addition to flexible PCBs, Eight Kougyou provides high-frequency and high-speed signal transmission PCBs for a wide range of industries. Applications includeaerospace, medical equipment, mobile communications, and automatic control equipment.
Recommended case
Cases requiring reliability-focused boards for aerospace and medical applications
If you want to manufacture FPCs from 1-layer to 6-layer
Those who value the quality control system of certified factories
Company Information –PDK
Address
6-7-9 Tsunashima Higashi, Kohoku-ku, Yokohama, Kanagawa, Japan
Enhama offers a wide range of flexible circuit boards, enabling them to cater to niche and highly specific customer requirements. Drawing on an extensive selection of materials, configurations, and product lineups, they can produce FPCs customized to meet diverse needs.
OKI Circuit Technology provides custom printed circuit boards with add-on features tailored to specific applications. Leveraging an internally developed production and quality management system, the company can handle diverse and small-lot orders. Their high quality-control standards are further underscored by their designation as a JAXA-certified facility (Japan Aerospace Exploration Agency).
FPC specifications
Number of Layers
2–8 layers
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Those who wish to manufacture high-reliability boards with high-mix, low-volume production
Case considering FPCs from 2 layers to 8 layers
When emphasizing quality control for aerospace applications
Oki Electric Cable manufacture a wide variety of flexible PCB, allowing to choose the most suitable type based on specific goals and requirements. Their flexible PCB support a range of applications, such as miniaturization and weight reduction of electronic devices, high-frequency signal transmission, and space-saving wiring in movable parts.
KANSAI Denshi Industry offers comprehensive support for flexible PCBs—from design and manufacturing to assembly—tailored to your specific goals, applications, and challenges. For single-sided and double-sided non-through-hole boards, production is possible in as little as 3 days. This enables both short lead times and cost savings.
Kyoden provides a fully in-house, one-stop solution, handling everything from product planning and development to material sourcing, design, and manufacturing. The company is also equipped to handle mass production and short lead times. Assembly, certification support, and packaging/shipping are all included.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide, copper foil, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Kyoden supplies flexible PCBs across various sectors that support both everyday life and cutting-edge technologies, including:
Automotive systems
Industrial Equipment
Office and precision devices
Sensors and module devices
Amusement machines
Communications and IoT devices
Medical related equipment
Infrastructure-related equipment
Consumer electronics (smart appliances)
Broadcast
Aerospace and aviation
Other
Recommended case
Those who want to be in charge of everything from planning to mass production, assembly, and shipping
Cases requiring in-house integrated support with short delivery times
When considering automotive, medical, and aerospace applications
Company Information –PDK
Address
482-1 Mikamachi, Minowa-cho, Kamiina-gun, Nagano, Japan 482-1, Mikkaicho
Growth Inc. is active in various technical fields essential to development environments, such as artwork design and high-frequency circuit boards. They offer support for flexible PCBs ranging from single-sided to up to 8 layers. Small-lot orders are also accepted, and the company is known for its flexible service tailored to customer needs.
FPC specifications
Number of Layers
Single-sided up to 8 layers
Minimum Pitch
Not listed on the official website
Base Materials
Coverlay, coverlay adhesives, copper foil, copper-laminated adhesives, copper-laminated base films
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Growth Inc. has experience working with major manufacturers, supporting all stages of hardware development. Services include:
・Artwork design
・High-frequency PCB fabrication
・Circuit design support
・Bare-die mounting
Recommended case
Cases where you want to flexibly order small quantities of multilayer FPCs
If you also want to consult about high-frequency substrates and circuit design
Those who want to outsource everything up to bare chip implementation
With integrated production at its domestic factory, K2 Inc. can deliver single-sided flexible PCBs in as little as 2 days. The company specializes in medium-lot manufacturing, offering competitive pricing and short delivery times for batches of 500 to 1,000 units—often more cost-effective than larger mass-production vendors.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
Not listed on the official website
Base Materials
Polymide, polyester, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
K2 owns its own plating equipment and build-up PCB production lines, allowing them to handle not only general PCBs but also the following specialized types:
4 to 8-layer multilayer flexible PCBs
2 to 8-layer rigid-flex PCBs
Fluororesin (Teflon) PCBs
High-frequency PCBs (e.g., MEGTRON6)
Impedance-controlled PCBs
Resin-filled via PCBs (PAD on HOLE)
Thick copper PCBs (for high current applications)
Metal-based PCBs
IVH (interstitial via-hole) PCBs
Cavity substrate, etc.
Recommended case
When placing an order for single-sided FPCs, prioritizing delivery time
For those who want to make small batches of 500 to 1,000 pieces
Cases Requiring Multi-layer Rigid-flex PCBs
Company Information –PDK
Address
4-13-22 Minamiterakatahigashi-dori, Moriguchi, Osaka, Japan
Business Hours
Not listed (Closed Sundays and public holidays; other holidays as designated)
Canon Components Inc., with decades of experience in PCB design, utilizes a proprietary reel-to-reel conveyance method to manufacture high-quality boards via a non-contact process. The adoption of ultra-compact, ultra-thin flexible wiring boards allows for the delivery of high-density modules.
FPC specifications
Number of Layers
Single-sided, double-sided
Minimum Pitch
18/18 μm (under development as of 2022)
Base Materials
Polyimide Film
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Canon Components supports a wide range of applications across both enterprise and consumer product domains.
Cosmotec offers low-cost, quick-turnaround flexible PCB manufacturing. The company employs a unique production method developed through years of R&D. With rigorous in-house quality control, they achieve both a reduced defect rate and improved defect detection capabilities.
FPC specifications
Number of Layers
Up to 6 layers
Minimum Pitch
40–80 μm / 40–80 μm (as of August 2022)
Base Materials
Polyimide, copper foil, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
The company has extensive experience manufacturing flexible PCBs and has worked with major corporations in Japan.
Konica Minolta Mechatronics Co., Ltd. specializes in the production of precision equipment and electronic devices, including PCB design, prototyping, and assembly. With equipment like four SMT lines and 3D Automated Optical Inspection (AOI) systems, they deliver high-quality, automated, and IoT-enhanced assembly solutions.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Konica Minolta Mechatronics has experience in manufacturing a diverse range of products, including circuit boards for copiers and printers, healthcare devices, sensors, inkjet systems, motherboards, and acoustic/vibration-based CPU boards.
Cir-Techh is a prototype manufacturer specializing in flexible PCBs, offering total support from planning to evaluation. Their expert engineers, who possess in-depth knowledge of flexible board characteristics, provide application proposals across diverse fields including medical devices, optics, and aerospace.
FPC specifications
Number of Layers
Single-sided, 2-layer
Minimum Pitch
Not listed on the official website
Base Materials
Stretchable substrates, transparent polyimide, contact bumps, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Cir-Tech has designed and produced the following types of flexible PCBs:
Stretchable Flexible Substrate (Medical)
Transparent polyimide flexible PCBs (for amusement and medical use)
With well-equipped facilities and a fully integrated in-house production system, Sanesu Denki handles everything from PCB prototyping and pattern design to mass production. The company excels in flexible PCB prototyping and manufacturing. By using router processing instead of creating molds, they can significantly reduce costs.
FPC specifications
Number of Layers
Single-sided to 4-layer
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
For rigid PCBs, Sanesu Denki supports fabrication of boards from single-sided up to 14 layers. In pattern design, they can convert outdated artwork to Gerber data or digitize hand-drawn schematics, showcasing their adaptability and experience.
Recommended case
Cases where you want to entrust prototyping, design, and mass production to the same company
If you want to produce small quantities while keeping mold costs down
Those who want to digitize old circuit diagrams and rebuild them
Sunhayato provides not only customized PCB development backed by strong R&D and proposal capabilities, but also supports self-manufacturing of PCBs. In addition to made-to-order completed boards, they assist individuals and companies in creating their own circuit boards.
FPC specifications
Number of Layers
Single-sided
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide
Base film thickness
50 micrometers
Adhesive thickness
20 micrometers
Copper foil thickness
35 micrometers
Minimum Finished Hole Diameter
Not listed on the official website
Track record
By offering compact desktop etching equipment, Sunhayato supports not only prototyping but also small-lot production. They also sell soldering skill practice kits to help factory workers improve their manual soldering techniques.
Recommended case
If you want to do FPC prototyping or small-lot production within the company
Those who want to gather all the materials and equipment for PCB fabrication
A case where you want to set up an educational environment for soldering skills.
Sanyo offers integrated services from design to manufacturing within their own facilities, allowing customers to consult from the material selection and design stage. They support a wide range of advanced technologies, including fine-pitch and micro-hole processing.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
From 20µm on one side, from 50µm on both sides
Base Materials
Polyimide, Liquid Crystal Polymer (LCP)
Minimum Finished Hole Diameter
Top diameter: Φ50µm (bottom diameter Φ20µm) / Land diameter: (bottom diameter + approx. 90µm)
Track record
Semiconductor inspection systems; test equipment; LCD panel inspection devices.
Substrates for magnetic heads; relay boards for optical pickups; actuator boards; relay boards for micro speakers and receivers; relay and terminal boards for other compact electronic components.
Interconnection cables between circuit blocks (for applications without repetitive bending stress)
Recommended case
For those who need FPCs with fine wiring and fine holes
A case where you want to consult from material selection to design and manufacturing
When considering semiconductor and LCD inspection equipment
Sanwa Electronic Circuit provides a wide variety of quality-driven PCBs through a combined network of domestic factories and overseas partners. With a unified point of contact, they offer one-stop service from sourcing to delivery, balancing quality, lead time, and cost.
FPC specifications
Number of Layers
Single-sided, double-sided, etc.
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Automotive: driver assistance systems, car navigation, ETC, in-vehicle electronics
Telecommunications: 5G smartphones, infrastructure base stations
Medical: remote diagnostics and treatment equipment
Industrial: automation and robotics, factory automation (FA) control systems
Edge computing devices
Recommended case
Cases where you want to use domestic and overseas factories selectively for procurement
If you want to manage quality, delivery, and cost all at once
Those who need PCBs for automotive, communication, or medical applications
Leveraging a global supply network, Shirai Electronics offers flexible support across lead times, board types, and service requirements. They also manufacture specialized transparent flexible PCBs using ultra-thin polyethylene as the base material.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Special polyethylene
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Shirai’s flexible PCBs support various industries and applications, including:
Recommended case
If you need a transparent and ultra-thin flexible substrate
Those seeking a mass production system that leverages overseas bases
Cases requiring flexible support based on delivery times and specifications
Signus provides tailored support from design through to assembly, selecting the optimal production site based on client priorities such as lead time and cost.For time-sensitive projects, domestic factories are used, while overseas production is chosen for cost-efficiency—allowing clients to place orders based on their specific needs.
FPC specifications
Number of Layers
2 to 12
Minimum Pitch
100um
board thickness
0.2 to 3.2 mm
Maximum size
650 × 480mm
Copper Foil Thickness
12 to 140μm
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
0.20mm
Track record
No case studies were listed on the official website.
Recommended case
For those who want to choose between domestic and overseas factories based on delivery times and costs
Cases where you want to consult consistently from design to implementation
If you wish to source printed circuit boards ranging from 2 to 12 layers
Company Information –PDK
Address
49-11 Katsuranozato-cho, Nishikyo-ku, Kyoto, Japan
SystemGear offers full support from PCB mounting and assembly to final product inspection. They can deliver fully assembled PCBs with just one order and also support small-batch prototyping, mass production, and component-supplied assembly. Their online sales of electronic parts and semiconductors make sourcing parts easy.
FPC specifications
Number of Layers
Single-sided, double-sided
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Circuit design: barcode readers, magnetic card reader/writers, RFID systems, LED infrared communication, wireless systems, security equipment, financial equipment, medical equipment, and other industrial applications.
Pattern Design: System gears for various industrial equipment, automatic recognition equipment, medical equipment, and financial institution equipment
Recommended case
Cases Where You Want to Outsource Everything from Parts Procurement to Assembly, Installation, and Inspection
When you want to proceed in stages from small-scale prototyping to mass production
For those who need circuit design for industrial and medical devices
Company Information –PDK
Address
Takarazuka Technical Center, 1-7-11 Takatsukasa, Takarazuka City, Hyogo, Japan
System Products provides one-stop services from design to assembly, with a commitment to responsive and smooth communication tailored to client needs. The company manufactures both flexible PCBs and rigid-flex boards. Equipped with EMI analysis tools, they supply high-quality boards designed to prevent noise emission and interference.
FPC specifications
Number of Layers
6 layers (Rigid: 4, Flex: 2)
Minimum Pitch
12.5 μm
Base Materials
Polyimide, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
While specific case studies are not published on their website, System Products has established capabilities in both flexible and rigid-flex PCB manufacturing.
Recommended case
When FPC design that takes EMI countermeasures into account is required
For those looking to have rigid-flex PCBs manufactured from start to finish
Cases where you want to consolidate the point of contact from design through implementation
Shinko Shashin Service offers integrated services from board production to component mounting. With decades of experience since its founding in 1977, the company can support even specialty boards starting from single prototypes. They handle a wide variety of board types, materials, sizes, and structures.
FPC specifications
Number of Layers
Single-sided, multilayer (up to 6 layers)
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide, PET, LCP, Film material
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Track record of high-frequency substrate production
Radar for small vessels
wireless LAN
ETC Antenna
Automatic Driving System
Collision Avoidance Millimeter Wave Radar
High frequency components (filters, distributors, mixers, couplers)
High Frequency Semiconductor
Cellular phone base station
Antennas and antenna modules
Satellite cell phone terminal
Measuring Equipment
Satellite Communications and Satellite Broadcasting
IOT communication devices
light-wave communication
Recommended case
For those who want to prototype and assemble special PCBs from a single unit
Cases Where High-Frequency, Long-Length, and Multilayer FPCs Are Considered
If you’d like to discuss and decide on the materials and structure in detail
Company Information –PDK
Address
4363-18 Ikebe-cho, Tsuzuki-ku, Yokohama, Kanagawa, Japan
Business Hours
9:00 AM – 6:00 PM (Closed on Sat, Sun, and holidays)
Shinwa Print Industry handles the design, manufacturing, and assembly of flexible, rigid, and printed circuit boards—all within its own domestic facilities. They support single- to four-layer flexible boards and can also manufacture rigid-flex combinations. Their integrated production enables fast delivery.
FPC specifications
Number of Layers
Single-sided to 4 layers
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide Film
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Thanks to their integrated facility with on-site manufacturing and assembly, Shinwa delivers fast-turnaround support across all production stages—from pattern design and production layout to manufacturing and component assembly.
Recommended case
Cases where short-term delivery production is desired at an in-house factory in Japan
If you want to combine an FPC with a rigid PCB
For those who wish to outsource design, manufacturing, and assembly as a single package
Scott Design System operates an in-house facility with integrated production for flexible PCBs. In addition to manufacturing the boards, they also offer pattern design, component mounting, and even parts procurement for mounted assemblies.
Sumitomo Electric has developed a wide range of flexible PCBs with enhanced functionality. Their offerings include ultra-thin, highly bendable boards, as well as high-frequency fluororesin-based flexible PCBs with low transmission loss and excellent flexibility, suitable for millimeter-wave applications.
FPC specifications
Number of Layers
3 layers and more
Minimum Pitch
0.35mm
Thickness (for 3-layer configuration)
300-400um
Base Materials
Fluororesin-based dielectric
Minimum Finished Hole Diameter
Not listed on the official website
Track record
RF module connections: Smartphones, routers, PCs, base station equipment
External terminal connections: PCs, data center equipment, base station equipment
FPC antennas: Base station devices, automotive radar systems
Used in: Automotive, mobile devices, wearables, high-frequency antennas, transmission/reception modules, robotics, actuators, speaker diaphragms, camera image stabilization modules, medical devices, HDDs, DVDs
Recommended case
For those who need low-loss FPCs for the millimeter-wave band
Cases where you want to use thin and highly flexible wiring materials
When prioritizing high-speed data transmission for communication devices
Company Information –PDK
Address
4-5-33 Kitahama, Chuo-ku, Osaka, Japan (Sumitomo Building)
Seika Corporation handles the sale, import, and export of a wide range of machinery used in the industrial sector, including plant systems, environmental equipment, electronics, and information and communication devices. They manufacture cost-effective rigid-flex PCBs that support diverse layer configurations and are also capable of handling repeat mass production.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed records of Seika’s FPC-related projects were found on the official website. If you're considering them as a potential supplier, we recommend contacting them directly for more information.
Recommended case
Cases Where Cost-Effective Rigid-Flex PCBs Are Required
When you want to mass-produce with a diverse layer composition and repeat it.
Those seeking support for trading companies, including overseas procurement
Company Information –PDK
Address
Shin-Tokyo Building, 3-3-1 Marunouchi, Chiyoda-ku, Tokyo, Japan
Daisho Denshi offers high-density rigid-flex PCBs that combine the benefits of flexible and build-up boards. These PCBs eliminate the need for connectors and help reduce mounting space. Laser vias enable higher density, contributing to thinner and more compact devices.
FPC specifications
Number of Layers
4 to 20 layers
layer thickness
Min.0.18mm (4 layers)
Minimum Pitch
Line/Space: Min. 50µm/50µm
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Through-hole/Land: Min. 250µm/500µm
Track record
Used in: Mobile phones, digital still cameras, digital video cameras, tablets, mobile PCs, compact mobile devices, medical equipment, industrial equipment, automotive modules, and various sensor components.
Recommended case
When You Need a High-Density Flex-Rigid PCB
For those who want to reduce connectors and save space
Cases where miniaturization of equipment is desired with multi-layer and fine wiring
Taiyo Industry specializes in the prototyping, development, and sale of flexible printed circuit boards. Their offerings include single-sided, double-sided, and multilayer flexible PCBs, as well as bump-type and bare-chip mount flexible boards. With an integrated in-house production system, they ensure quick delivery.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No specific case studies were provided.
Recommended case
Those who wish to prototype a wide variety of flexible printed circuits (FPCs) with short delivery times
Cases requiring bump formation or bare-die implementation
If you want to speed up development through in-house, end-to-end production
Company Information –PDK
Address
661 Arimoto, Wakayama City, Wakayama Prefecture, Japan
Techno Circuit provides end-to-end services including PCB design, manufacturing, and assembly. They support four types of flexible PCBs: single-sided, double-sided, multilayer, and rigid-flex. The use of automated optical inspection (AOI) ensures consistent, high-quality output.
While no detailed examples are listed on their official website, Techno Circuit handles production of rigid, flexible, and special PCBs, along with procurement from overseas manufacturers.
Recommended case
Cases where you want to choose from single-sided to rigid-flex
When Quality Is a Priority in Automated Visual Inspection
For those who wish to outsource design, manufacturing, and assembly as a single package
Company Information –PDK
Address
13-1 Higashifudatsu-cho, Higashikujo, Minami-ku, Kyoto, Japan
Techno Circuit provides end-to-end services including PCB design, manufacturing, and assembly. They support four types of flexible PCBs: single-sided, double-sided, multilayer, and rigid-flex. The use of automated optical inspection (AOI) ensures consistent, high-quality output.
FPC specifications
Number of Layers
06-6312-1221
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you want to outsource everything from parts procurement to packaging
Those who want to supply PCBs and finished products to overseas locations
With a long-standing history in printed circuit board manufacturing, CMK Japan provides total solutions including PCB design utilizing signal integrity and electromagnetic field analysis. They produce high-density, ultra-thin multilayer flexible PCBs with four-layer structures, making them ideal for compact circuit applications.
FPC specifications
Number of Layers
Double-Sided
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Do you need substrate design using electromagnetic field analysis?
Cases where you want to use high-density, thin, multilayer FPCs
When seeking comprehensive support from design to mass production
Company Information –PDK
Address
43F Shinjuku Island Tower, 6-5-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan
In addition to flexible printed wiring boards, Toshiba Hokuto Electronics is active in various electronic device businesses. Their offerings cover a wide range of flexible PCBs, including single-sided, double-sided, exposed conductor, and multilayer types. All processes from design to production are handled at a single site, enabling swift response and delivery.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide, electroplated copper, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
A case where you want to quickly manufacture FPCs with various structures
If you want to outsource everything from design to production to one company
For those considering exposed conductors and multilayer FPCs
Company Information –PDK
Address
Toshiba Building, 1-1-1 Shibaura, Minato-ku, Tokyo, Japan
MECTEC Corporation (formerly Nihon Mectron) is a subsidiary of the NOK Group that engages in integrated production of ultra-thin, high-flex, high-frequency FPCs in Japan and overseas. The company handles everything from prototyping to mass production and high quality assurance, and its products are used in many fields, including 5G, automobiles, and medical equipment.
We have earned the trust of our customers with a large number of achievements, including high-density wiring for smartphones and tablets, wiring for moving parts of HDDs and SSDs, high heat-resistant FPCs for next-generation automobiles, minute FPCs for medical implant devices, and even IoT devices and wearable terminals.
Recommended case
When thin, highly flexible, and high-frequency FPCs are required
For those who want to adopt it for 5G, in-vehicle, and medical equipment
Cases where you want to entrust prototyping to mass production both domestically and internationally.
Leveraging its strengths as a functional materials and specialty materials manufacturer, Nitto Denko supplies not only standard flexible PCBs but also unique types such as “environmentally-friendly halogen-free flexible PCBs,” meeting advanced environmental and technical specifications.
FPC specifications
No detailed information is available on their official website regarding quality control systems.
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Those who need environmentally friendly halogen-free FPCs
Cases seeking substrates utilizing knowledge of functional materials
When considering custom flexible printed circuit boards
Company Information –PDK
Address
Grand Front Osaka Tower A, 33F, 4-20 Ofukacho, Kita-ku, Osaka, Japan
Business Hours
9:00–17:30 (Closed on weekends and public holidays)
Hakkoh Denshi offers a variety of flexible PCBs designed to meet diverse application needs. Their lineup includes flexible PCBs suitable for automated mounting and pre-folded designs that help reduce both cost and processing time.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
no official statement
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where you want to reduce man-hours and costs in the implementation phase
If you want to use a pre-bent FPC
Those who wish to procure boards suitable for automated assembly
PC Electronics is engaged in the design, manufacturing, and assembly of printed circuit boards, as well as software and hardware development and electrical component testing. Their offerings include single-sided, double-sided, multilayer flexible PCBs, and rigid-flex boards. They also support hybrid IC assembly and integration.
FPC specifications
Number of Layers
Up to 8 layers
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you want to develop the board and software/hardware together
For those who need multi-layer rigid-flex PCBs up to 8 layers
Cases where you want to request assembly and electrical inspection
Fujikura provides a broad range of flexible PCBs in various shapes and configurations. Their lineup includes ultra-fine, long-length types and boards with pre-mounted components, making them suitable for specialized and complex design requirements.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who need special shaped FPCs, such as ultra-thin or long sizes.
Cases where you want to procure FPCs with components mounted
If you want to compare multiple layers from a single side
Fuji Print Industrial specializes in manufacturing high-precision printed circuit boards. For flexible PCBs, they support multiple base materials including polyimide, polyester, and liquid crystal polymer (LCP). The company also offers services such as design, prototyping, small- to mid-volume production, and board repair.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
50µm/50µm (Line & Space)
Base Materials
Polyimide, Polyester, Liquid Crystal Polymer
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where high-definition FPCs need to be manufactured on various base materials
If you want to entrust design, prototyping, and small-lot mass production
Those seeking long-term support, including board repairs
Company Information –PDK
Address
315-11 Shimoongata-machi, Hachioji City, Tokyo, Japan
Howa Sangyo specializes in the development and manufacturing of flexible PCBs using polyimide film as the base material. Notably, they construct their base boards without organic materials, enabling their products to withstand high-temperature environments. With a strong focus on R&D, the company can support prototyping from just a single unit.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide Film
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you want to develop an FPC that can be used in a high-temperature environment
People seeking substrate structures without organic materials
Case where you want to prototype a special substrate from a single unit
Company Information –PDK
Address
2F Omori Building, 13-1 Ichigayadaimachi, Shinjuku-ku, Tokyo, Japan
Towa Printed Circuit handles the entire production flow—from design to delivery—in-house. By By managing specifications and production planning internally, they achieve short lead times. Their flexible PCB production capacity reaches up to 1,000 square meters per month.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Min. L/S: 75/75
Base Materials
Polyimide, polyester
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
We want to proceed with a short delivery time from design to delivery.
A case where the monthly production scale of FPCs is being considered for mass production.
If you want to produce polyimide or PET substrates
Furukawa Electric offers a diverse lineup of copper foil products for printed circuit boards. For flexible PCB applications, their F-WS series features uniformly processed surfaces for excellent adhesion, while the FWL-WS series provides superior adhesion even to rigid base materials like liquid crystal polymers.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where you want to select high adhesion copper foil for FPC
When adhesion to hard substrates such as LCP is required
Those who want to compare copper foil lineups by application
Company Information –PDK
Address
Tokiwabashi Tower, 2-6-4 Otemachi, Chiyoda-ku, Tokyo, Japan
Fine Labo specializes in in YAG laser processing and prototyping of flexible PCBs. They support up to 10-layer multilayer flexible PCBs and utilize a proprietary process that eliminates the need for through-holes, contributing to unique manufacturing advantages.
With over 50 years of experience in printed circuit board manufacturing, PDK boasts expertise in more than 1,000 types of PCBs (as of January 2022, per their official website). They also handle specialized products such as extra-long flexible PCBs, backed by a wealth of proven know-how.
FPC specifications
Number of Layers
06-6312-1221
Minimum Pitch
0.05mm/0.05mm or more (one side)
Base Materials
Polyimide
Minimum Finished Hole Diameter
0.1 mm dia. or more
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who want to produce special flexible printed circuits such as ultra-long sizes
Cases that emphasize know-how in substrate manufacturing
If you are considering single-sided flexible PCBs with fine-pitch wiring
Company Information –PDK
Address
177-4 Ichinotsubo, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Japan
Showa Sangyo is equipped with advanced facilities to manufacture printed circuit boards—including flexible PCBs—entirely within Japan. They support a wide range of processing and surface treatment options such as laser processing and gold plating.
FPC specifications
Number of Layers
1 or 2
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
I want to procure FPCs with integrated domestic manufacturing.
When laser processing or gold plating is required
If you want to stably produce single-sided and double-sided FPCs
Company Information –PDK
Address
1624-1 Oguchi-cho, Matsusaka City, Mie Prefecture, Japan
Marutsuelec handles over 11 million part numbers and can accept orders starting from just one unit. Their proprietary online system allows for quick and accurate quotations. For single- and double-sided flexible PCBs, delivery can be completed in as few as four business days, with shorter lead times available upon consultation.
FPC specifications
Number of Layers
Up to 6 layers
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide, polyester, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you want to procure parts and PCBs online
Those who wish to request small-lot production from just one unit
Cases where you want to produce single-sided/double-sided FPCs with short lead times
Company Information –PDK
Address
7F Seiki Daiichi Building, 5-2-2 Sotokanda, Chiyoda-ku, Tokyo, Japan
Maruwa supports flexible PCB production at various scales—from collaborative development and prototyping to full-scale mass production.They also offer in-house developed flexible PCBs with specialized features for unique applications.
Murakami Electric Industrial provides end-to-end services from PCB development through to assembly. They manufacture a wide range of high-density, high-layer PCBs, including single-sided, double-sided, and double-sided through-hole boards, all supported by a multilayer press line. Each step of the process, from development to implementation, is handled internally.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
0.5mm-thick 6-layer boards
14-layer impedance-controlled PCBs
Top-plug processed 14-layer boards
Double-sided flexible PCBs with coverlay and reinforcement (P1)
Single-sided flexible PCBs with coverlay (L/S: 80/80μm)
Single-sided FPCs with liquid-resist reinforced boards (P1)
Rigid-flex boards
Automotive PCBs
PCBs for the Gaming Commission (pachinko/pachislot)
Nuclear power distribution PCBs
PCBs for wireless devices
Jet cockpit instrumentation boards
Amusement PCBs
Refrigerator PCBs
CCD camera PCBs
Touch panel PCBs
Lighting-related PCBs
Medical device PCBs
Fishfinder PCBs
Peripheral device PCBs for PCs
Recommended case
A case where you want to outsource everything from substrate development to implementation.
If you want to manufacture high-layer count / high-density boards
Those who value a track record of manufacturing for diverse industrial applications.
Meiko Electronics offers tailored solutions by integrating their PCB design and EMS (Electronics Manufacturing Services) businesses.They provide total support from product planning and design to manufacturing and logistics, enabling customers to receive full-service proposals that include PCB design, assembly, and product integration.
FPC specifications
Number of Layers
1 or 2
Minimum Pitch
50 micrometers
Base Materials
Polyimide, PET
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you want to outsource everything from substrate design to assembly and logistics
Looking for an FPC with a 50µm pitch
Case requesting mass production proposals in collaboration with EMS
Company Information –PDK
Address
5-14-15 Ogami, Ayase City, Kanagawa Prefecture, Japan
Yamaichi Electronics offers a unique flexible PCB product called YFLEX®, which uses a liquid crystal polymer base film. YFLEX® is ideal for high-frequency applications in the millimeter-wave band, as well as environments requiring resistance to high temperatures, high humidity, and strong gas barrier properties.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who need low-loss FPCs for the millimeter-wave band
We want to consider FPCs for high-temperature and high-humidity environments.
When requesting high gas barrier substrates from LCP
Yamashita Materials provides full in-house services from FPC design to manufacturing and tooling. They offer a wide range of flexible PCBs, including 4-layer blind via FPCs and multilayer coil FPCs. The company also offers fast, nationwide support via web conferencing.
FPC specifications
Number of Layers
2 to 12 layers
Minimum Pitch
L/S = 20 μm / 20 μm (as of Sept 2022, under development)
Yamashita supplies FPCs to a wide range of sectors. For the medical industry, they produce ultra-thin, lightweight, high-density FPCs used in devices such as imaging systems, catheters, and endoscopes.
In the optical communication industry, they provide high-speed transmission FPCs for integration into optical modules central to communication infrastructure worldwide. In the automotive sector, Yamashita offers FPCs that meet demanding environmental requirements—such as heat resistance, thermal dissipation, and oil resistance. Their product lineup includes “Big Elec” FPCs for high-speed transmission and high-current applications.
Recommended case
Cases where you want to outsource design, manufacturing, and tooling all at once
If you want to develop multi-layer coils or special Flexible Printed Circuits (FPCs)
For those who need high-density circuit boards for medical and optical communication applications
Company Information –PDK
Address
3-5-13 Minami-Shinagawa, Shinagawa-ku, Tokyo, Japan
Raytech specializes in fine-pattern flexible PCBs, offering support for various types of mid-volume and small-lot prototype production. They also provide flying-lead flexible PCBs, which include pre-formed lead sections for unique connection requirements.
FPC specifications
Number of Layers
1 or 2
Minimum Pitch
15 micrometers
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
If you need fine patterns of 15µm class
Those who want to adopt FlyingLead FPC
Cases where you request a variety of products in medium quantities or small-batch prototypes
Company Information –PDK
Address
6F, Yaesu Ryumeikan Building, 1-3-22 Yaesu, Chuo-ku, Tokyo
Business Hours
9:00–17:30 (Closed on weekends and public holidays)
unicraft enables users to request quotes and place PCB orders entirely online. Customers can also choose whether or not they need Gerber data creation as part of the service, making it user-friendly for different technical levels.
FPC specifications
Number of Layers
1 or 2
Minimum Pitch
0.125mm
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
0.15mm
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Those who want to complete everything from quotes to orders on the web
Cases where you also want to request Gerber data creation
If you want to prototype single-sided and double-sided flexible printed circuits (FPCs) in small batches
Company Information –PDK
Address
Yamase Building 2F, 206-20 Sakuramiyacho, Omihachiman-shi, Shiga Prefecture
ExPlus is a dedicated PCB manufacturer based in Taiwan. As a full-service custom board supplier, they handle design and production of various PCBs. Their capabilities include flexible PCBs and rigid-flex PCBs with 8 or more layers.
FPC specifications
Number of Layers
1-layer, 2-layer, 4-layer
Minimum Pitch
2.75 microns
Base Materials
Polyimide
Minimum Finished Hole Diameter
Diameter less than 100 microns
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Case where you want to have custom PCBs manufactured by an overseas manufacturer
When 8-layer rigid-flex PCBs are required
For those considering FPCs with fine wiring and small diameter holes
Company Information –PDK
Address
3F, No.534, Sec.1, Minsheng N. Road, Guishan Dist., Taoyuan City 333, Taiwan
Panasonic emphasizes heat resistance, dimensional stability, and overall quality in its flexible PCB offerings. Their FELIOS series includes substrate materials such as polyimide, liquid crystal polymer, and resin-coated copper foil—catering to a variety of technical needs.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
In 2005, Panasonic received an emergency government order following an incident involving FF-type oil heaters. The company responded by conducting in-depth investigations around customers’ homes and working with retailers in affected regions such as Hokkaido, Tohoku, and Nagano to trace the distribution of the affected products.
Recommended case
If you prioritize heat resistance and dimensional stability
Those who wish to select FELIOS materials that suit their purpose
Cases where Liquid Crystal Polymer (LCP) or copper-clad laminate with resin is desired
PCBGOGO simplifies the ordering process by allowing users to place orders entirely online—no factory visit or sales rep required. Just input your details online to initiate an order. If you have a Gerber file, you can receive an instant quote. Free consultations and manufacturing estimates are also available.
FPC specifications
Number of Layers
1-6 layers
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
PCBGOGO’s official website includes customer reviews, offering insight into the company’s past performance and customer satisfaction.
As an electronics trading company, Kyoei Sangyo offers a wide range of flexible PCBs, including single-sided, double-sided, rigid-flex combinations, and FPCs with pre-mounted components. They also support white and black coverlays and various surface treatments to meet diverse application requirements.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Consumer Electronics: PCs, cameras, wireless devices, payment terminals (POS), gaming consoles, and more
Automotive: Backlights, EV batteries, and more
Recommended case
A case where you want to procure up to the implemented FPC in a lump sum.
If you need mass-produced boards for automotive and consumer electronics
Those who wish to specify overlay or surface treatment
Company Information –PDK
Address
Shinagawa Seaside Canal Tower, 4-12-6 Higashi-Shinagawa, Shinagawa-ku, Tokyo
FESE leverages an international supply network to provide contract manufacturing of printed circuit boards. They assist with factory selection, cost negotiations, and local inspections, offering broad support for PCB sourcing. From prototypes to mass production, FESE accommodates customers seeking full outsourcing or cost reductions.
FPC specifications
Number of Layers
8
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
60
Track record
With sales offices in Japan, China, and Hong Kong, FESE has an established track record of partnerships with numerous factories. For more details, visit their official website.
Recommended case
If you want to reduce costs by comparing overseas factories
Those seeking procurement support from prototyping to mass production
Cases where you want to delegate on-site inspections and price negotiations
Company Information –PDK
Address
2-507 Shiogamaguchi, Tempaku-ku, Nagoya, Aichi, Japan
Business Hours
10:00–17:00 (Closed on weekends and national holidays)
Material Kobo and TechnoFlexis support everything from prototyping to mass production. They offer prototype PCBs using a cutting method that eliminates the need for external molds, helping to reduce development costs. Their philosophy focuses on “faster, cheaper, and more precise” solutions for a wide range of customer needs.
FPC specifications
Number of Layers
Contact directly for details
Minimum Pitch
Contact directly for details
Base Materials
Contact directly for details
Minimum Finished Hole Diameter
Contact directly for details
Track record
he official website does not provide information on past projects or client use-cases. If you're interested in their quality control measures, we recommend contacting them directly.
Recommended case
Those who want to reduce prototyping costs for FPCs without using molds
Cases where we want to request continuous service from prototyping to mass production
If you want to finish the exterior cut with a short delivery time
Company Information –PDK
Address
6353-20 Minamiminowa Village, Kamiina District, Nagano Prefecture, Japan
Yunika handles all phases of flexible PCB production, including design, manufacturing, assembly, and inspection. They support both small-lot and mass production, and have extensive experience with both standard and specialized boards. Additional services include materials procurement, sales, and import/export support tailored to customer requirements.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Measuring Instruments
Power Supply Systems
Semiconductor Equipment
Telecommunication Devices
Inverter Systems
Recommended case
Cases where design, manufacturing, implementation, and inspection are to be consolidated
If you want to proceed flexibly from small lots to mass production
Those who need material procurement and import/export support
p-ban.com allows users to complete all steps of PCB design, manufacturing, and assembly online. They specialize in prototypes and small-lot orders using mold-free processes that reduce initial costs. Their “Ultra Quick” shipping option enables delivery in as little as one day. They also handle multilayer and specialized flexible PCBs.
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
From 20µm on one side, from 50µm on both sides
Base Materials
Polyimide, Liquid Crystal Polymer (LCP)
Minimum Finished Hole Diameter
0.3mm
Track record
As of March 2024, p-ban.com has served over 29,000 companies. Their clients span a wide range—from leading tech companies like Aisin Corporation, JAXA (Japan Aerospace Exploration Agency), Omron, and Kyocera, as well as to academic institutions including the University of Tokyo, Kyoto University, Keio University, and Waseda University.
Recommended case
If you want to complete design, manufacturing, and implementation online
For those who want to do small-lot prototyping while keeping mold costs down
Cases where prioritizing shipping lead time is important
Company Information –PDK
Address
4F, Gobancho Hikari Bldg, 14 Gobancho, Chiyoda-ku, Tokyo, Japan
TA Chemical provides end-to-end services from prototyping to mass production of rigid and flexible PCBs, including component mounting and rework. They support single- and double-sided structures and pride themselves on proposing optimal solutions based on individual customer requirements. The company also caters to small-quantity orders and customers with limited internal resources.
FPC specifications
Number of Layers
Supports both single and multi-layer structures
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
We could not find any information on T.A. Chemical's track record in FPC on its official website. Comparative study is necessary when selecting a contractor, so we encourage you to inquire and confirm the information for this purpose.
Recommended case
Those who want to entrust everything from substrate prototyping to assembly and rework
I need a proposal for specifications suitable for small quantity orders.
If you want to consult with a specialized trading company for materials and products
Shiima Electronics offers supply services for FPCs and COF/TAB tapes, handling everything from material sourcing to component mounting and module integration. Their partnerships with manufacturing collaborators also allow for rigid board procurement. Their strength lies in technical sales consulting tailored to specific customer needs.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
30μm
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No specific case studies or achievements related to FPCs were found on their website. If you are comparing vendors or need further assurance, reaching out directly is recommended.
Recommended case
Case where you want to outsource from FPC procurement to modularization
When 30 µm class fine wiring is required
Those who are seeking material proposals from technical sales representatives
Company Information –PDK
Address
Teika Building, 2-82 Hanasaki-cho, Naka-ku, Yokohama, Kanagawa, Japan
A wholly owned subsidiary of Toray Engineering, TRENG F Products manufactures flexible PCBs and also provides processing services for large and precision components. manufacturing Flexible Printed Circuit Boards (Flexible PCBs) and processing large or precision components. Their flexible PCBs are produced using advanced polyimide etching technologies,
FPC specifications
Number of Layers
Single-sided, double-sided, and multilayer
Minimum Pitch
Single-sided: 15μm (Line/Space = 7.5μm/7.5μm)
Double-sided: Supports prototyping at pitches under 50μm
Base Materials
Polyimide
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed project track record is listed on the official website.
Recommended case
When extremely fine polyimide processing is required
Those who want to prototype single-sided, double-sided, and multilayer flexible PCBs
Cases where you want to consult about processing large and precision parts
Company Information –PDK
Address
6th Floor, Yaesu Ryumeikan Building, 1-3-22 Yaesu, Chuo-ku, Tokyo
Sakura Denshi is a company that designs, develops, and manufactures circuit boards, and is committed to solving the "problems" of users. For this reasonWe have experience in flexible board production, even under conditions that are generally difficult to deal with.
FPC specifications
Number of Layers
4 to 12 layers
Minimum Pitch
50μ/50μ
Base Materials
Polyimide, polyester
Minimum Finished Hole Diameter
0.15mm
Track record
Rigid-Flex PCB
Large flexible super long
Flexible circuit board
Build-up rigid flexible circuit board
Recommended case
Those who need FPCs for special conditions
Cases where you want to create large/ultra-long flexible printed circuit boards
If you are considering 4-layer to 12-layer boards,
Molex is an American connector manufacturer. Focusing on customer service,We also develop flexible printed circuit boards as interconnection solutions, as well as various sensors and circuit products.
FPC specifications
Number of Layers
One side, not stated
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where FPC and connectors are considered as an integrated unit
If an interconnected design including sensors is required
Seeking global mass production and technical support
Foresight is a company that focuses on the manufacture and sale of LCD panels and touch panels, as well as orders for glass etching processes.We have an extensive track record of supplying flexible printed circuit boards, mainly to domestic automobile manufacturers.
FPC specifications
Number of Layers
Single-sided, 6 layers
Minimum Pitch
25µm (as of August 2025)
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
When prioritizing delivery performance for automotive FPCs
For those who need micro-wiring boards on the 25µm scale
Case of bulk procurement of liquid crystal panels and touch panels
Stay Electronic Equipment Co., Ltd. designs, manufactures, and sells quality flexible printed circuit boards, utilizing more than 40 years of external processing technology.We can also handle orders for simple mock-ups, prototypes from one piece, and mass production.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who want to start with simple mock-ups or single-piece prototypes
Cases prioritizing know-how in external shape processing
When transitioning from prototyping to mass production within the same company
The company handles various types of flexible substrates, including single-sided flexible, double-sided flexible, and multilayer flexible (4 or more layers).Supports redesign from Gerber data even when board design data is lost at other companies
FPC specifications
Number of Layers
4 layers
Minimum Pitch
Not listed on the official website
Base Materials
Resin, clear material, Teflon, metal, etc.
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Case where lost substrate data needs to be redesigned
If you want to compare from single-sided to multilayer FPCs
For those who want to manufacture substrates from special materials
SURLution Inc. is a developer and manufacturer of FR-4, aluminum, and flexible PCBs. As well as manufacturing printed circuit boards,Responding to a wide range of requests, including design and development of new products and improvement of existing productsWe are also a one-stop shop from design to sales. Another strength of our company is that we are a one-stop shop for everything from design to sales.
FPC specifications
2
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
Design: circuits and boards, artwork, software, etc.
Testing: Check basic operation, voltage of each part, temperature rise, operation time, etc.
Manufacturing: From procurement of components such as batteries and adapters to mass production of circuit boards, electronic components and cases, assembly and inspection, etc.
Recommended case
To be in charge of a new product from design to manufacturing
For those who require improvements or operational testing of existing products.
Case where you want to procure PCBs, components, and cases in a batch
Tanaka Giken Ltd. develops and manufactures small and thin FPCs (flexible substrates) and rigid substrates.One-stop service from design to mounting and manufacturingIn addition, we make technical proposals in response to customer requests.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Polyimide, copper foil, general FR-4, high Tg FR-4, CEM-3, prepreg
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who want to consistently develop small and thin FPCs
When you want to entrust design, manufacturing, and implementation to the same point of contact
To receive technical proposals tailored to your needs
Company Information –PDK
Address
2-53-3 Komatsubara, Zama City, Kanagawa Prefecture
Nissun Co,A company that designs and manufactures a wide variety of substrates, including not only flexible substrates but also RFPC substrates and thick copper substratesIt is. We also respond to design changes and try to design products that meet the customer's needs. We are capable of manufacturing from small to medium-sized lots to mass production.
FPC specifications
Number of Layers
8-layer, 10-layer, 16-layer
Line/Space (minimum line width/spacing)
76µm/76µm
Base Materials
MEGTRON6
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where you want to procure RFPC or thick copper boards
If an 8-layer to 16-layer multilayer board is required
Those who want to transition from small-lot to mass production
Towa Tech, Inc,Companies that handle requests by individuals and prototypes from a single piece.It is. We are mainly involved in the design and manufacture of printed circuit boards, and we work with a factory in China to handle the delivery process. Quotations can also be made through our website.
Hokuyo Electronics Co., Ltd. mounts printed circuit boards, semiconductor components, and other electronics products, as well as wires and assembles enclosures.Utilizes automated equipment and robots in addition to precision mountingWe have a wide range of products to meet a wide range of requests, such as mounting a single small board or mass-producing large boards. Our proprietary system "NET FELLOW" is available for corporate members to check progress and inventory.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
For those who want to implement everything from small, single items to large-scale mass production.
Cases where you want to outsource everything from enclosure wiring to assembly
If you want to check progress or inventory online
Company Information –PDK
Address
Shinjuku Square Tower 29F, 6-22-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo
A flexible circuit board manufacturer that is committed to quick and flexible responsiveness from prototyping to mass production.We are working on quality control with the themes of eradicating defects and placing top priority on quality. We have obtained ISO 9001 certification and are striving to improve quality through 100% inspections and employee training.
FPC specifications
Number of Layers
Not listed on the official website
Minimum Pitch
Not listed on the official website
Base Materials
Not listed on the official website
Minimum Finished Hole Diameter
Not listed on the official website
Track record
No detailed information is available on their official website regarding quality control systems.
Recommended case
Cases where emphasis is placed on the period from prototyping to mass production
If emphasizing the inclusion of 100% inspection
Those who wish to request services from an ISO 9001 certified company
Company Information –PDK
Address
2775 Utsue, Kokufu-cho, Takayama City, Gifu Prefecture
A board manufacturer with a wide range of delivery achievements, from consumer goods to aerospace.We design with consideration for substrate characteristics and manufacturing rules, and can also handle short delivery times. We also have partner factories in China, South Korea, and Thailand that meet our standards.
FPC specifications
Number of Layers
Floors 2-20
Minimum Pitch
Not listed on the official website
Base Materials
FR-4 (General Purpose, High Tg, Halogen-Free)
CEM-3 (General Purpose, High Thermal Conductivity, Halogen-Free)
Low-dielectric-constant material
Minimum Finished Hole Diameter
Minimum drill diameter φ0.15
These are general board specifications. For details, please inquire with Ihara Electronic Industry Co., Ltd.
Manufacturers of transparent flexible PCBsWe visualize data such as yield and work history to manage quality and delivery times. We improve the accuracy of visual inspections by utilizing AI trained with our company's know-how.
Each company has different motivations for looking for a flexible printed circuit board (FPC) supplier. Here we introduce three FPC manufacturers, each with their own areas of expertise, according to three typical needs.
For high difficulty and special specifications
Sanyo
Source: Sanyo Official Website (https://www.landingpage-synergy.com/6Ik8Yr0D/)
Even special specifications rejected by other companies can be discussed with our engineers from the design stage.
Compatible with high-definition boards with a single-sided pitch of 20 µm, enabling equipment miniaturization
Flexible response with in-house integrated production from a single prototype to mass production
