Flex PCB Manufacturer

Rapid Prototype & Volume Flex PCB Fabrication Services

As a leading China flex PCB supplier, we specialize in high-quality flex circuit manufacturing—from rapid-turn prototyping to full-volume flexible PCB fabrication. Upload your Gerber files now for a fast, reliable quote.

Flexible PCBs

  Flexible PCBs are circuit boards made from flexible substrates such as polyimide film, polyamide film, etc. The main materials include conductive materials, insulating materials, and substrates.The conductive material is usually copper foil, which forms a circuit pattern after rolling or etching.Insulating materials are used to isolate conductive layers and prevent short circuits.

  The manufacturing process of Flexible PCBs includes multiple steps such as cutting and drilling circuit boards, creating circuit graphics, laying conductive layers, and soldering.

Product Showcase

What are Flex PCBs?

Flex PCB, also known as Flexible PCB or FPC, is a type of printed circuit board that can bend, twist, and flex to fit different shapes and spaces. These PCBs are built using flexible base materials such as polyimide (PI) or polyester (PET), allowing them to maintain stable electrical performance even under mechanical stress.

The flexibility of Flex PCBs makes them ideal for applications in compact, high-performance electronic devices, including medical instruments, consumer electronics, wearables, and aerospace systems. They help reduce product weight, improve space efficiency, and enhance overall reliability.

Ultra-Fast Turnaround : Rapid prototyping with 24-hour expedited service available.
High Precision Quality: Tight process control and experienced engineering team ensure top-tier performance.
Advanced Manufacturing : Supports HDI, semi-flex, and complex rigid-flex structures.
Extensive Material Stock: Full range of high-frequency, high-speed, and special materials in stock.
Responsive Service: 4-hour quick quotation, 1-on-1 technical support, and full customer care.

Our Flex PCBs Capabilities

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Different Types of Flex PCB Boards

Product:Custom Large Size Flex PCB

Product:Flex PCB for Medical Device

Product: Dense Fine Lines Flex PCB

Product: HDI Blind and Burried Via Flexible PCB

Capabilities

Capability Parameter
PCB Type Flexible PCB
Quality Grade Standard IPC 2
Material PI
PET
Number of Layers 1 Layer
2 Layers
4 Layers
6 Layers
8 Layers
Max PCB Size 1 Layer: 4000mm x 240mm
2 Layers: 800mm x 240mm
Multi-layers: 350mm x 240mm
Board Size Tolerance (Outline) ±0.1mm
Soldering Pad Diameter ≥0.3mm
Quality Grade Standard IPC 2
Lead Time 5-7 Days
Coverlay Yellow, White, Black, None
Coverlay Opening Size ≥0.6mm x 0.6mm
Min Spacing Colverlay to Soldering Pad ≥0.15mm
Soldermask Color Green and Others
Soldermask Bridge Green: ≥0.1mm
Others: ≥0.15mm
Minimum Character Width (Legend) ≥0.7mm
Minimum Character Height (Legend) ≥0.8mm
Min Spacing from Silkscreen to Soldering ≥0.2mm
Surface Finish ENIG
OSP
Immersion Tin
Chemical Silver
Impedance Control Single-ended 50Ω
Differential Pairs100Ω
Tolerance ±10%
Stiffener Material PI
FR-4
Aluminum
Steel
Edge Rail Width ≥10mm

Why Consider Fast Turn PCB?

Fast Turn PCB is your reliable partner in Flex and Rigid-Flex PCB manufacturing. With over 10 years of experience, we deliver fast, high-quality, and cost-effective solutions for customers worldwide.

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FAQ

The main substrate of flexible circuit boards is usually polyester film or polyimide film.

 These materials have good flexibility and high temperature resistance, which can meet the needs of flexible circuit boards in dynamic applications such as bending and folding.

A layer of conductive material, usually copper foil, is deposited on the substrate of a flexible circuit board through a specific process.

 The thickness of the conductive layer can be adjusted as needed to meet the requirements of different application scenarios for current transmission capacity and mechanical strength.

Substrate preparation: Select and prepare substrates such as polyester film or polyimide film that meet the requirements.

Preparation of conductive layer: Plating copper foil or other conductive materials on the substrate.

Circuit pattern formation: Excess copper foil on the conductive layer is removed through processes such as photo painting and etching to form the desired circuit pattern.

Process processing: After the formation of the circuit pattern, coating protective layer, curing, hole drilling, electroplating and other processes are carried out to increase the protection performance and reliability of the circuit board.

Finished product inspection: Conduct strict finished product inspection on flexible circuit boards, including appearance inspection, circuit connectivity testing, pad reliability testing, and other multiple tests to ensure that the circuit board meets quality requirements.

Before sampling, the design of flexible circuit boards needs to undergo strict review.

 This process mainly checks the rationality, feasibility, and potential manufacturing issues of the design.

 Design review is usually completed by a professional team of engineers who will carefully evaluate the design documents based on experience and technical specifications to ensure the quality and reliability of the final product.