PCBMASTER manufactures flexible printed circuits (FPC) using polyimide (PI) substrate, available from 1 to 8 layers. Our FPCs feature ±6% single-ended impedance, laser blind vias, and support repeated bending. Ideal for compact wearable devices, medical sensors, and consumer electronics requiring lightweight, flexible interconnects.
Key Selling Points
Polyimide Substrate: Durable, heat-resistant material for flexible applications (source fact: polyimide (PI) in material list).
Fine Line Capability: Supports laser blind vias 65/165μm for high-density routing (source fact: laser blind hole spec 65/165μm).
Impedance Control: Single-ended ±6%, differential ±7% for signal integrity (source fact: differential impedance ±7%, single-ended ±6%).
Bending Durability: Tested for repeated bending – ideal for wearables and portable devices (source fact: bending cycle durability tester in medical scenario).
Technical Specifications
Parameter
Value
Layer Count
1-8 layers
Substrate Material
Polyimide (PI)
Laser Blind Via
65/165 μm
Impedance Tolerance
Single-ended ±6%, Differential ±7%
Min Stub Length (Back-Drill)
5 mil
Models and Options
Available as single-sided, double-sided, or multilayer FPC. Custom thickness, stiffeners, and shielding options.
Materials and Structure
Polyimide base with rolled annealed copper. Optional EMI shielding, adhesive bonding, and coverlay.
Applications
Wearables: Smart watches, fitness bands. Medical: Pacemakers, diagnostic sensors. Consumer Electronics: TWS earbuds, smartphones. Also used in automotive and industrial sensors.
Customization
Custom size, bend radius, connector integration. No MOQ – prototypes from 1 piece.
FAQ
1. How many bending cycles can your FPC withstand?
We test up to 100k cycles depending on design.
2. Can you do rigid-flex?
Yes, we offer rigid-flex combinations – see our Rigid-Flex PCB variant.
3. What is the minimum trace/space for FPC?
3/3 mil trace/space achievable.
4. Do you provide impedance control on flexible circuits?
