Flex-Rigid 4-Layer PCB for Control Modules
(FPC’s are custom-made products, the picture and parameters shown are just for reference)
Introducing Our 4-Layer Flex-Rigid PCB for Control Modules
We are pleased to present our cutting-edge 4-layer flex-rigid PCB, expertly crafted to merge the best features of rigid PCBs and flexible FPCs. This innovative product is specifically designed for applications requiring high-density wiring, resistance to vibration and bending, and efficient use of compact spaces.
Key Features and Benefits
Composite Structure: Features a Tg170℃ FR-4 rigid substrate combined with a 0.16mm polyimide flexible substrate for enhanced performance.
Surface Treatment: Equipped with electroless nickel immersion gold (ENIG) for superior reliability and excellent electrical characteristics.
Thickness:Rigid PCB part: 1.50mm (finished thickness)
Flexible FPC part: 0.16mm
Copper Thickness: Utilizes 1oz (35μm) copper per layer for high current-carrying capacity.
Aesthetic and Functional Design
Solder Mask: Green solder mask enhances both functionality and visual appeal.
Silkscreen Marking: Clear white markings for easy identification.
FPC Coverlay: Yellow protective film for bend resistance and anti-oxidation.
Dimensions: Single piece size is 125.60mm × 45.60mm, with a panel design of 191.20mm × 116.60mm accommodating 3 pcs per set.
Advanced Manufacturing Techniques
Micro-Via Design: 0.2mm via diameter suitable for high-density wiring, featuring a via filling and electroplating process for a smooth surface.
Quality Assurance: 100% electrical testing (ET testing) ensures optimal conductivity and insulation, adhering to IPC-A-600 Class 2 standards.
SPCS Sheet
| Size of Rigid-FlexPCB | 191.20mm × 116.60mm=3PCS |
| Number of Layers | 4 |
| Board Type | Rigid-flex PCB |
| Board Thickness | 1.5mm |
| Board Material | FR-4 1.5mm / Polyimide 25µm |
| Board Material Supplier | Shengyi |
| Tg Value of Board Material | 60℃ |
| PTH Cu thickness | ≥20 µm |
| Inner Iayer Cu thicknes | 35 µm |
| Surface Cu thickness | 35 µm |
| Coverlay Colour | Yellow Coverlayer / Green solder mask |
| Number of Coverlay | 2 |
| Thickness of Coverlay | 25 µm |
| Stiffener Material | no |
| Stiffener Thickness | N/A |
| Type of Silkscreen Ink | IJR-4000 MW300 |
| Supplier of Silkscreen | TAIYO |
| Color of Silkscreen | White |
| Number of Silkscreen | 2 |
| Peeling test of Coverlay | No peelable |
| Legend Adhesion | 3M 90℃ No peeling after Min. 3 times test |
| Surface Finish | Immersion Gold |
| Thickness of Nickle/Gold | Au: 0.03µm(Min.); Ni 2-4µm |
| RoHS Required | Yes |
| Famability | 94-V0 |
| Thermal Shock Test | Pass, -25℃±125℃, 1000 cycles. |
| Thermal Stress | Pass, 300±5℃,10 seconds, 3 cycles. No delamination, no blistering. |
| Function | 100% Pass electrical test |
| Workmanship | Compliance with IPC-A-600H & IPC-6013C Class 2 |
Diverse Applications
Our flex-rigid PCBs are perfect for:
Consumer Electronics: Foldable screen devices, smartwatches, TWS earphones.
Industrial Equipment: Sensors for high-vibration environments, robot control modules.
Medical Instruments: Portable monitoring devices, endoscopes.
Automotive Electronics: Onboard cameras, flexible display modules.
Delivery and Customization
Standard Delivery: Each set includes 3 pcs per panel, packaged in vacuum anti-static material for protection.
Customization Options: We offer batch panelization optimization and special marking customization to meet unique requirements.