Polyimide-based flex circuits that bend, fold, and withstand dynamic flexing. Single and double sided flex PCBs for wearables, medical devices, cameras, and space-constrained electronics.
What are Flexible Circuits?
Flexible circuits (flex PCBs) are printed circuit boards built on a thin, flexible polyimide (PI) substrate instead of the rigid FR-4 used in standard PCBs. The copper conductors, insulating layers, and cover layers all remain flexible, allowing the completed board to bend, fold, and conform to three-dimensional shapes without breaking.
Unlike a rigid PCB, a flex circuit can be routed around corners, folded into tight enclosures, or designed to articulate thousands of times in dynamic flex applications. They eliminate the need for connectors and cable harnesses where the flex circuit forms a continuous electrical path between moving parts.
Flex vs Rigid: When to Choose Flex
Our Flex PCB Service
We manufacture single sided and double sided flex circuits on UL-listed polyimide substrates with rolled-annealed (RA) copper — the choice for superior bending fatigue performance in dynamic flex applications.
Stiffener sections (FR-4 or polyimide) are available for connector zones and mounting areas where rigidity is needed. Coverlay protects the flex traces. ENIG or OSP surface finish ensures flat, solderable pads for component assembly.
Key Specifications
Surface Finishes
Stiffener Options
Share your flex circuit design — we'll review bend radius, copper weight, and stiffener needs.
Applications
Flex circuits solve packaging challenges that rigid PCBs cannot — wherever space, weight, or dynamic movement are design constraints.
Smartwatches, fitness trackers, and health monitoring devices require thin, flexible boards that conform to the body and withstand thousands of bending cycles during daily use.
ECG electrodes, endoscope imaging modules, implantable device leads, and hearing aids where miniaturisation, biocompatibility, and reliability are critical.
Digital cameras, CCTV modules, drones, and optical sensors use flex circuits to connect rotating lens assemblies and folded image sensor boards without bulky cables.
Laptop displays, foldable phones, tablet hinge connections, and printer cartridge assemblies — anywhere a circuit must navigate a mechanical fold or pivot.
Avionics, satellite systems, and radar assemblies where weight reduction, vibration tolerance, and operation across extreme temperatures (−65°C to +200°C) are mandatory.
Dashboard display clusters, steering wheel controls, seat heater elements, and door trim lighting that require flexible, thin circuits routed around complex interior contours.
Technical Capabilities
Standard parameters for our flex circuit service. Tighter tolerances and special constructions available on request — contact our engineering team.
Other PCB Types
We manufacture the full range of PCB types from the same Gandhinagar facility — rigid, flex, and everything in between.
Share your design files and we'll review bend radius, copper weight, and stiffener requirements.
