Single Sided Reelable Rigid Flex Circuit Boards Polyimide Flex PCB Yellow Soft Board
Single Sided Reelable Rigid Flex Circuit Boards Polyimide PCB Yellow Soft Board
Single Sided Reelable Rigid Flex Circuit Boards (Polyimide PCB, Yellow Soft Board)
These are single‑sided rigid‑flex printed circuit boards constructed with high-performance polyimide (PI) base material, featuring a yellow soft board appearance and designed for reel-to-reel processing. They integrate rigid and flexible regions to support 3D wiring, dynamic bending, folding and miniaturized assembly. Ideal for compact electronic devices, wearable products, connectors, sensors and precision modules requiring high reliability, flex fatigue resistance and automated reel production.
| Layer Count | 1-Layer |
| Material | PI |
| Board Thickness | 0.4 mm (Customizable) |
| Copper Thickness | 0.5 oz |
| Minimum Hole Size | 0.2 mm |
| Minimum Line Width | 0.1 mm |
| Minimum Line Spacing | 0.1 mm |
| Solder Mask Color | Yellow |
| Surface Finish | ENIG |
Product Description
Single Sided Circuit Structure
Single-layer conductive circuit, simple structure, cost-effective, easy for processing and assembly.
Reelable Design (Roll-to-Roll)
Supports reel packaging and automated production, improving mounting efficiency and suitable for mass manufacturing.
Rigid-Flex Composite Structure
Combines rigid support area and flexible bending area, enabling three-dimensional assembly and space-saving layout.
High-Performance Polyimide (PI) Substrate
Excellent temperature resistance, chemical stability, mechanical strength and long service life.
Yellow Soft Board Appearance
Standard yellow solder mask / polyimide soft board, good insulation, scratch resistance and high visibility.
Excellent Flexibility & Fatigue Resistance
Supports repeated bending, folding and torsion, stable performance under dynamic use.
High Reliability & Miniaturization
Lightweight, thin, stable electrical performance, widely used in compact and wearable electronics.
- Design Specifications
| Item | Mass Production Capability | Extreme Capability |
|---|---|---|
| Board Thickness Range | 0.3~6.0mm | 0.3~6.0mm |
| Exposure Alignment Accuracy | ±0.015mm | ±0.005mm |
| Minimum Annular Ring | Single side ≥0.05mm | Single side ≥0.05mm |
| Min Line Width/Space (1/3oz base copper) | 0.05mm / 0.05mm | 0.045mm / 0.045mm |
| Min Line Width/Space (1/2oz base copper) | 0.05mm / 0.05mm | 0.05mm / 0.05mm |
| Min Line Width/Space (1oz base copper) | 0.075mm / 0.075mm | 0.075mm / 0.075mm |
| Etching Tolerance (1/3oz base copper) | ±0.005mm | ±0.005mm |
| Etching Tolerance (1/2oz base copper) | ±0.005mm | ±0.005mm |
| Etching Tolerance (1oz base copper) | ±0.0075mm | ±0.0075mm |
| Gold Finger Total Pitch Tolerance | <30mm: ±0.05mm 30~60mm: ±0.075mm |
<30mm: ±0.03mm 30~60mm: ±0.05mm |
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