High Quality Flexible PCB Manufacturers List

Printed circuit board  not only provides a reliable platform for various functional components but also organizes the connection methods in an orderly manner. With the development of electronic technology, there is a pressing need for a flexible PCB to optimize the internal space of a device. However, in comparison, a flexible board is more expensive in terms of both manufacturing difficulty and cost. To ensure that your project achieves cost-effectiveness and quality simultaneously, this article from TechSparks recommends some reliable flexible PCB manufacturer. These manufacturer offers global services to help users worldwide realize their value.

Merlin Flex Ltd​ logo

Merlin Flex Ltd

EMS manufacturer address: UK

  EMS Manufacturer Phone :  +44 (0) 7801 182391

  EMS manufacturer website : https://www.merlinpcbgroup.com/

Merlin Flex Ltd was founded in 1987, initially known as Flex-Ability Ltd. It is a British company specializing in the design, manufacturing, and assembly of flexible and rigid-flex PCBs. In 2010, due to its outstanding performance, it was acquired by the Merlin PCB Group. The company meets market demands through continuous improvement and investment plans, making significant strides in multiple fields. Its focus on investments in facilities, equipment, and personnel continues to grow, and it has been honored to receive the SC21 Bronze Award.

CCI Canadian Circuits Inc.​ logo

CCI Canadian Circuits Inc.

EMS manufacturer address: Canada

  EMS Manufacturer Phone :  1.888.590.6464

  EMS manufacturer website : https://www.canadiancircuits.com/

CCI Canadian Circuits Inc. is a Canadian company established in 1993. Over the years, they have been deeply involved in the PCB field, providing high-quality circuit boards to over 40 industries. With excellent operations, comprehensive customer service, and close collaboration with the sales team, they were recognized as one of the top 100 flex PCB manufacturers in the Greater Vancouver area in 2019.

Nippon Mektron, Ltd. logo

Nippon Mektron, Ltd.

EMS manufacturer address: Japan

  EMS Manufacturer Phone :  (029)830-9236

  EMS manufacturer website : https://www.mektron.co.jp/english/

For users seeking flexible PCB solutions from Japan, Nippon Mektron, Ltd. is an excellent choice. The company was founded in 1961, headquartered in Tokyo, Japan, and has manufacturing facilities in Europe and North America.

Nippon Mektron, Ltd. specializes in flexible PCB and has gained a global reputation for its outstanding manufacturing capabilities and quality. They offer comprehensive services, from flexible PCB manufacturing to assembly, catering to various industries such as consumer electronics, automotive electronics, and wearables. Compared to other manufacturers, they can produce lighter and thinner products without compromising performance and reliability.

Service typeProcurement, Manufacturing, Assembly
Available Board TypesSingle-layer board, Double-layer board, Multi-layer board
FPC Manufacturing TechnologyStretchable, ultra-fine, high yield, high heat dissipation, shielding film, ultra-thin one-sided
Areas of FocusFor high-speed transmission, HDD, mobile devices, automobiles, wearable devices, robots
ViaThrough Hole 0.20mm~ IVH 0.15mm~、SVH 0.10mm~
Surface TreatmentElectrolytic/non-electrolytic gold plating, anti-rust treatment, electrolytic tin plating
Substrate MaterialPolyimide Film 25μm(1mil)、12.5μm(1/2mil)
Copper Foil17.5μm(1/2oz)、12μm(1/3oz)
Cover MaterialPolyimide Film 25μm(1mil)、12.5μm(1/2mil)
Elephantech​ logo


EMS manufacturer address: Japan

  EMS manufacturer website : https://www.elephantech.co.jp/en/

Elephantech, a pioneering tech company, specializes in the fields of semiconductors, flexible electronics, and sensors. Beyond technological innovations, their collaboration with LITEON Technology has positioned them as the first company to successfully utilize metal inkjet printing for PCBs, making a significant contribution to environmental sustainability.

Elephantech’s flagship product, P-Flex®, introduces groundbreaking techniques by utilizing direct metal ink printing followed by copper plating. The Pure Additive™️ method transforms metal into nano-particle ink, printed onto substrates using inkjet printers, and chemically plated to form circuits. This technology reduces manufacturing processes, significantly lowers environmental impact, and enhances cost-effectiveness compared to traditional methods.

Elephantech’s IMPC® offers cutting-edge design and manufacturing solutions. Incorporating inkjet technology and high-speed copper electroplating, this process shapes circuit films into a three-dimensional form. Subsequently, injection molding and resin integration further enhance low resistance, soldering capabilities, and ion migration prevention, ultimately reducing material costs.

Fujikura, Ltd.

EMS manufacturer address: Japan

  EMS Manufacturer Phone : 813-5606-1030

  EMS manufacturer website : https://www.fujikura.co.jp/eng/

Fujikura, Ltd. is a Japanese company founded in 1885 that provides comprehensive solutions in flexible electronics. With a global distribution network, the company’s worldwide manufacturing facilities employ over 53,000 employees equipped with various advanced equipment and certified under international quality standards such as ISO9002 and ISO9001.

Specializing in telecommunications, cables, optical fibers, electronic components, and automotive parts, the company has attained a leading position in the industry globally due to its innovation and high-quality products. Leveraging proprietary flexible manufacturing technologies and a range of premium materials, they manufacture smaller and lighter circuit boards without compromising reliability and durability. Their services and technologies have made significant contributions to the development and upgrading of global communication networks.

PCB CapabilityDescription
MaterialsPI, PET, PEEK, etc.
Thickness0.025mm ~ 0.5mm
Trace/Space10μm / 10μm
Minimum Hole Size0.1mm
Minimum Mechanical Machining Size0.1mm
Minimum Electrical Spacing75μm
PCB Surface FinishesENIG, OSP, HASL, Ag, etc.
SMT Impedance Control100Ω ~ 120Ω
Maximum Board Size250mm x 450mm
LayersSingle-sided, double-sided, multi-layer
Assembly TechnologySMT assembly and THT assembly
High-speed Digital Circuit Impedance Control50Ω, 75Ω, etc.
Assembly TechnologyAOI, X-ray, BGA, CSP, etc.
Production Lead TimeSample: 5-10 days; Batch: 10-20 days
CertificationsUL, ISO9001, etc.
Application FieldsSmart homes, wearable technology, automotive electronics, medical equipment, consumer electronics, industrial control, telecommunications, etc.

InterFlex, Ltd.

EMS manufacturer address: Korean

  EMS Manufacturer Phone : (82) 31.436.5000

  EMS manufacturer website : https://www.interflex.co.kr/eng/

Interflex Inc., a Korean FPC manufacturer under the Yongfeng Group, has made remarkable contributions to the electronics industry in Asia. The company has established intelligent manufacturing facilities in Southeast Asian countries such as South Korea, China, and Vietnam.

Since its establishment, Interflex Inc. has been dedicated to accumulating expertise in FPC and TSP manufacturing technologies, with a focus on the development of new technologies. The company has built a strong reputation for its ability to use automated equipment for the rapid and efficient production of printed circuit boards. Their production equipment includes Compact Press-ESP-300, Piercing Press-ATP-200, Coverlay Press-RP-2500, Coverlay / OCA Press-RP-5000-PP, OCA FILM Press-RP-5000-OCA, Metal Sputtering-RTR 500, and more. Leveraging these advanced facilities, they provide FPC manufacturing services to global Fortune 500 companies such as Samsung and LG, earning unanimous praise.

In their pursuit of excellence, the company adheres to the management philosophy of “Customer Satisfaction: Our Top Priority.” They adopt a customer-oriented mindset and behavior, aiming to provide better products and services from the customer’s perspective, ultimately maximizing customer satisfaction.

Production CapabilityDescription
Product TypeFlexible PCB, Rigid-Flex PCB
Board Thickness0.05mm – 0.6mm
Minimum Trace/Spacing25μm/25μm
Minimum Hole Size0.1mm
Minimum Mechanical Drill Bit Size0.2mm
Minimum Electrical Test Pad Size0.3mm
Surface FinishImmersion gold, immersion tin, immersion silver, ENIG, OSP, HASL
SMT Impedance Control50Ω-100Ω
Maximum Board Size610mm x 610mm
Layers1-8 (Flexible PCB), 2-20 (Rigid-Flex PCB)
Adhesiveless Material CapabilityPI, PET, PEN
Adhesive Material CapabilityAcrylic, Epoxy
Coverlay Material CapabilityPI, PET
Production Lead TimePrototype: 5-7 days, Mass production: 2-3 weeks
CertificationsISO 9001, ISO 14001, IATF 16949, UL

JinSung Electronics

EMS manufacturer addressKorean

  EMS Manufacturer Phone : 82-31-365-3393

  EMS manufacturer website : https://www.js-pcb.co.kr/main

JinSung Electronics, a distinguished South Korean manufacturer with a rich 25-year history, specializes in flexible PCB and rigid-flex PCB. With UL certification and ISO accreditation, they stand out in the industry, offering flexible PCB manufacturing capabilities of up to 20 layers. Their products find widespread applications in sectors such as automotive, healthcare, military, and mobile devices.

JinSung Electronics takes pride in its impeccable delivery capabilities, ensuring completion within a remarkable two-week timeframe. Setting themselves apart from other manufacturers, they provide the advantage of no minimum order requirements, offering greater flexibility for your projects. Opting for JinSung Electronics means choosing a reliable partner dedicated to crafting outstanding electronic solutions.

Unimicron Technology Corp.

EMS manufacturer address: China

  EMS Manufacturer Phone : 886-3-3500386

  EMS manufacturer website : https://www.unimicron.com/en/

Unimicron Technology Corp. is a Taiwanese company founded in 1990, headquartered in Hsinchu City. The company specializes in consumer electronics products such as smartphones, tablets, and laptops, emphasizing customer satisfaction and trust. To achieve this goal, Unimicron closely collaborates with world-class material and equipment suppliers, integrating cutting-edge materials and equipment into the development of new products.

Unimicron collaborates with domestic and international research institutions and academia, actively participating in the formulation of the international flexible PCB industry’s technological blueprint. By doing so, Unimicron can swiftly incorporate advanced manufacturing technologies into its production processes, ensuring that its products possess patentability, maintain technological leadership and stability, thereby enhancing competitiveness and meeting customer demands.

Unimicron continues to invest in research and development, with annual R&D expenses increasing from 2019 to 2022. The company employs comprehensive quality management, increased R&D investment, and patent protection to continually enhance its corporate value. Unimicron also actively embraces smart manufacturing concepts through participation in projects like intelligent manufacturing, driving the company towards a smart manufacturing transformation.

Material TypesPolyimide, Polyester, PEEK, LCP, PI-copper, PI-adhesive, etc
Maximum Layers12 layers
Minimum Line/Spacing25 μm/25 μm
Minimum Hole Size0.1 mm
Minimum Annular Ring75 μm
Surface FinishENIG, OSP, Immersion tin, Immersion silver, ENEPIG
Special TechniquesHybrid buildup, stacked microvia
Maximum Board Size610 mm × 610 mm
Minimum Board Size3 mm × 3 mm
Minimum Bend Radius3 mm
Solder Mask ColorsGreen, Blue, Black, Red, Yellow, White
Minimum Solder Mask Dam Size0.05 mm
Copper Thickness9-70 μm
Assembly CapabilitySurface mount technology, flip chip, chip on flex, wirebond
Testing CapabilityElectrical test, AOI, X-ray, functional test
Lenthor Engineering logo

Lenthor Engineering

EMS manufacturer address: America

  EMS Manufacturer Phone : 408-945-8787

  EMS manufacturer website : https://www.lenthor.com/

Lenthor Engineering, Inc. boasts over 36 years of industry experience and possesses the largest Flex Panel processor in Northern California, making it the recognized third-largest flexible PCB manufacturer in the United States. The company employs 180 full-time staff who work in a state-of-the-art facility spanning 63,000 square feet. Their factory facilities hold international certifications such as ISO 9001:2015, ITAR registration, J Standard certification, UL certification, demonstrating their professional standards in quality management and compliance. With substantial investments in research and development, they can produce 30-layer flexible, multilayer rigid-flex, staggered layer flex, double-sided access, setting them apart from manufacturers limited to producing flexible PCBs with 10 layers or fewer.

The company offers comprehensive services from prototype design to mass production, including assembly, soldering, testing, and packaging. In 2020, Lenthor Engineering reported strong second-quarter revenue, reaching $9.4 million, solidifying its position as one of North America’s largest private manufacturers and assemblers of flexible and rigid-flex circuits. The company’s overall profits also saw significant growth, attributed to capital expenditures implemented in 2019, laying the foundation for its performance in the first quarter of 2020.

SpecificationStandard (mil)Supported (mil)
 Drill to copper characteristics 
Outer layer108
Inner layer – Signal1210
Inner layer – Plane1512
 Hole size 
Rigid-Flex 0.0620.0400.008
Rigid-Flex 0.0930.0400.012
Blind laser vias0.0160.008
 Annular ring 
Plated and etched0.0050.004
Solder pad plating0.0100.006
Laser via capture pads0.0060.005
 Trace width 
1 oz (0.0014)0.0070.005
1/2 oz (0.0007)0.0100.004
1 oz (0.0014)0.0070.005
1/2 oz (0.0007)0.0100.004
Silkscreen line width to copper width0.0060.005
Edge to hole tolerance0.005 circular0.003 circular
Coverlay opening coverage0.0070.004
Kapton web (for coverlay)0.0100.007
Number of layers 24
Core thickness (rigid)0.0050.003
Core thickness (flex)0.0070.001
ProcessBikini LPINo-bag
Fine-Line Circuits Ltd​ logo

Fine-Line Circuits Ltd

EMS manufacturer address: India

  EMS Manufacturer Phone : 91 22 28290244 / 48257177

  EMS manufacturer website : https://www.finelineindia.com/

Fine-Line Circuits Ltd, based in India, emerges as an exemplary manufacturer of flexible PCBs with a rich history spanning over 30 years. A preferred choice for budget-conscious users, the company consistently bolsters its capabilities to address heightened PCB complexities featuring finer traces and smaller holes.

Strategically, Fine-Line Circuits adopts an approach that emphasizes the preparation of small batches, reduced delivery times, and an expanded range of materials and finishes. This commitment aligns with the overarching goal of consistently lowering prices to achieve global market objectives.

Fine-Line aspires to be a performance-driven, reliable, continually improving, high-quality, and medium-volume independent manufacturer and exporter in the complex high-count multilayer PCB field. The vision revolves around ensuring “100% customer satisfaction,” a commitment that remains unwavering. Adhering to stringent quality standards such as IPC A 600H, PERFAG 2E, 3G, IPC 6102, IPS 4101, IPC RB 276, MIL P 55110D, IPC 6018B, and maintaining processes in line with AS 9100 and TS 16949 standards, the company guarantees the highest quality in its manufacturing operations.

MaterialsPolyimide, PET, PEN, PEEK, LCP, etc.
Copper weight0.5oz~3oz
Line width/spacing0.05mm/0.05mm
Hole size0.15mm (drilling), 0.075mm (laser)
Min. mechanical drill size0.10mm
Min. electrical spacing0.05mm
Surface finishENIG, OSP, HASL, gold plating, etc.
SMT impedance control50Ω, 75Ω, 100Ω, etc.
Max. board size500mm x 600mm
Layer count1-8
Solder maskLPI (Liquid Photo-Imageable) solder mask, etc.
Peelable solder maskAvailable
TestingElectrical testing, Flying probe testing, etc.
CertificateISO9001, ISO14001, IATF16949, UL, RoHS
ApplicationAerospace, medical devices, consumer electronics, automotive, etc.

Flex Connect

EMS manufacturer address: France

  EMS Manufacturer Phone : 33 (0)3 89 83 19 50

  EMS manufacturer website : https://www.pcb-flexconnect.com/?lang=en

Flex Connect Ltd, headquartered in the Alsace region of France, specifically in Burnhaupt-le-Haut, boasts over 40 years of expertise in flexible PCB manufacturing. They offer a comprehensive range of services, from prototype development to bulk production, catering to the diverse needs of industries.

Leveraging their extensive knowledge, Flex Connect Ltd excels in providing solutions for single-sided, double-sided, multi-layer, differential copper, and jumper-based flexible circuitry. Their proficiency in reel-to-reel manufacturing processes enables the production of flexible printed circuit boards spanning several meters in length. These large-format PCB offer advantages in flexibility and dimensions, providing greater design space for innovative products.

Flex Connect Ltd’s flexible PCB manufacturing workshop holds ISO 9001 and UL 94 V-0 certifications, ensuring adherence to stringent quality standards. They are committed to environmental conservation, actively reducing waste, implementing waste sorting and recycling practices, and maintaining their dedicated waste treatment facility.

How to choose FPC manufacturer

  • Rich Experience: We should ensure that the manufacturer has several years of service experience, preferably highly sought after. If your project demands a significant number of flex circuit boards, it is recommended to choose a manufacturer that specializes in flexible PCB manufacturing. Moreover, you can inquire about the manufacturer’s past experience and cases. For instance, if your project involves a smartphone, check if the manufacturer has served a similar company to determine if their expertise meets your requirements.
  • Manufacturing Capabilities: Ensure that the manufacturer has the equipment and technology required to produce the type of flex printed circuit that you need, including the number of layers, materials, and specific features such as laser cutting or additive PCB manufacturing.
  • Quality Control: Electronics manufacturers have varying standards for quality control, but they all prioritize high-quality flex PCB boards. To ensure quality control, it is important to check the testing services and maintenance capabilities of the manufacturer. Unexpected errors are often inevitable due to the complexity of the circuit, so examining their failure rate is also crucial.
  • Certifications: Certification of PCBs is crucial for ensuring that manufacturers comply with industry best practices. It is essential to search for manufacturers who possess relevant certifications. Besides the usual certifications such as ISO 9001 or IPC standards, specific industries and products have different certification requirements, such as the medical and automotive industries.
  • Lead Time: It is particularly important to consider the lead time of the manufacturer, which is reflected in two aspects: capacity and quick turnaround. Quick turnaround flexible PCB circuit manufacturing means that your electronic products can reach the market faster, giving you an edge over competitors in terms of user adoption. Many manufacturers boast about their production capacity on their official websites, but their delivery times may tell a different story. If a manufacturer has 10 production lines, it should be able to deliver products on time and with a quick turnaround.

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