| FPC / Rigid-Flex PCB Technical Parameters | ||
|---|---|---|
| Item | Description | Technical Specifications |
| Main FPC Material | Brand | Taiflex, Graceth, SY |
| PCB Material | Brand | SY, ITEQ, KB |
| Texture | Texture Brand | PI, PET |
| Coverlay Film | Brand | Taiflex, Graceth, SY |
| Layers | 1-24 layers (sample), 1-12 layers (production) | |
| Finished Board Thickness | mm | 0.25-6.0 mm (sample), Rigid-Flex PCB 0.25-6.0 mm |
| Minimum Line/Space | mm | 0.05 mm / 0.05 mm |
| Maximum Finished Board Size | mm | 230*450 mm |
| Finished Board Thickness Tolerance | mm | ±0.05 mm |
| PP Thickness | μm | 12.5 μm, 25 μm, 50 μm |
| Copper Thickness | μm | 12 μm, 18 μm, 36 μm, 70 μm |
| Stiffener Material | Type | FR4 / PI / PET / SUS / PSA |
| Surface Finish | Type | ENIG, Immersion Tin, OSP, Immersion Silver, Gold Plating |
| Minimum Hole Size | mm | Mechanical: 0.15 mm, Laser: 0.1 mm |
| Hole Tolerance | mm | NPTH: ±0.05 mm, PTH: ±0.075 mm |
| Coverlay Color | Type | Yellow, Black |
| PI Thickness | mil | 0.5, 0.7, 0.8, 1, 2 mil |
| Maximum FPCB Layers | 1-8 layers | |
| Minimum Finished Board Size | mm | 5 mm * 8 mm |
| Minimum Pad | mm | Inner Layer: 5 mil, Outer Layer: 4 mil |
| Minimum Stiffener Size | mm | 4 mm * 5 mm |
| Maximum Stiffener Size | mm | 32 mm * 32 mm |
| Stiffener Alignment Accuracy | mm | ±0.075 mm |
| Minimum Open Area Size | mm | 0.6 mm * 0.6 mm (stamped), 0.5 mm * 0.5 mm (precision stamping) |
| Minimum Distance Between Open Areas | mm | 0.5 mm (precision stamping), 0.2 mm (laser routing), 0.15 mm (normal drilling) |
| Coverlay Overflow (one side) | mm | Normal: 0.08-0.12 mm, Limit: 0.03 mm |
| Minimum Half-Hole Diameter on Gold Finger | mm | 0.25 mm, Normal: 0.3 mm |
| Rigid-Flex PCB: Peel Strength | N | 1.4 N |
| Rigid-Flex PCB: Flatness | μm | <15 μm before baking; <30 μm after baking |
| Rigid-Flex PCB: Thermal Shock | ℃ | 288℃ (3 times for 10 seconds) |
| Rigid-Flex PCB: Gold Wire Pull Strength | g | >6 g |
| Rigid-Flex PCB: Minimum Board Thickness | mm | FPCB 0.1 mm, 4 layers 0.3 mm, 6 layers 0.5 mm, 8 layers 0.6 mm, 10 layers 0.8 mm |
KKPCB is a leading electronic solutions provider specializing in PCB design, fabrication, assembly, and testing for Flex, Rigid-Flex, RF/Microwave, HDI, rigid multilayer, and ATE test boards. We offer comprehensive end-to-end services, including prototyping, component sourcing, SMT/THT assembly, functional testing, enclosure assembly, and final product packaging. With our one-stop, in-house capabilities, KKPCB delivers OEM and ODM solutions with fast turnaround, high quality, and cost-effective results, serving clients worldwide.