Single-Layer flexible circuits

consist of a single copper conductor layer on a flexible dielectric film . Single-sided circuits can be fabricated with or without cover layers. 

Single-Layer Flexible Circuits Manufacturer in China

Single-layer flexible circuits consist of a single copper conductor layer laminated onto a flexible dielectric film, such as polyimide or polyester. The circuit can be supplied with or without a coverlay, depending on the insulation and environmental protection requirements of the end application.

This simple, cost-effective structure is ideal for dynamic interconnections, hinge areas, and space-constrained designs, offering excellent bendability, low weight, and easy integration into consumer electronics, automotive modules, LED lighting, medical devices, and industrial control systems.

Detailed Specification

FieldValue
Product NameSingle-Layer Flexible Circuits
Brand / OriginYongjin Hong / China
StructureSingle copper conductor layer on flexible dielectric film (PI or PET)
Coverlay OptionWith or without polyimide coverlay, depending on insulation/protection requirements
Copper Thickness12–35 μm (custom options available)
Dielectric Thickness12–50 μm PI or PET (typical range)
Min. Trace / Space0.10 / 0.10 mm (can be customized per design)
Max. Panel SizeUp to 250 × 500 mm (custom panel size on request)
Surface FinishENIG, OSP, immersion tin, or customer-specified finishes
Bend PerformanceSuitable for dynamic flex and hinge areas, designed for repeated bending
Typical ApplicationsConsumer electronics, LED strips, automotive modules, cameras, printers, medical devices, EV wiring
Customization ServicesEngineering support, stack-up design, DFM review, quick-turn prototyping and mass production

Different Types of Single-Layer Flexible Circuits

Single-Layer flexible circuits

Single-Layer flexible circuits

Single-Layer flexible circuits

Single-Layer Flexible Circuits Design

Single-Layer flexible circuits

Single-Layer flexible circuits

Single-Layer flexible circuits

Single-Layer Flexible Circuit Features

Single-layer flexible circuits consist of a single copper conductor layer laminated onto a flexible dielectric film such as polyimide (PI) or PET. The circuit can be supplied with or without a coverlay, depending on insulation, solder-mask, and environmental protection needs.

Thanks to the simple single-sided stack-up, these flex circuits offer very thin overall thickness, low weight, and excellent dynamic bending performance, making them suitable for repeated flexing in hinge or moving areas. Trace width, spacing, copper thickness, outline, stiffeners, and connector pads can all be customized to match your assembly process. The construction is fully compatible with SMT reflow, manual soldering, and connector termination, providing a stable, reliable interconnect solution for high-volume OEM products.

Single-Layer flexible circuits
Single-Layer flexible circuits

Wide Applications of Single-Layer Flexible Circuits

Single-layer flexible circuits are widely used wherever compact, reliable, and low-profile connections are required. In consumer electronics, they link displays, cameras, and key modules inside smartphones, tablets, and wearables without bulky wire harnesses. In automotive and EV systems, they serve as lightweight interconnects for sensors, switches, lighting, and battery modules, supporting repeated bending and vibration.

LED strips, printers, medical disposables, industrial control panels, and smart home devices also rely on single-layer flex circuits to route signals through constrained spaces while maintaining stable performance. With customizable layouts, materials, and copper thickness options, China-made single-layer flexible circuits offer OEMs a cost-effective solution that adapts easily to diverse product platforms and production volumes.