Capel 4-Layer Blind Via FPC: Precision Circuit for Industrial Control-Pcb Manufacturer, Rigid Flex Pcb, Flexible Pcb

Industrial Equipment Four-Layer FPC

Brief Introduction:

Type: Four-layer blind via board

Material: Inner layers: Double-sided adhesive-free electrolytic 12/25; Outer layers: Single-sided adhesive-free electrolytic 12/12.5; Double-sided yellow cover film 27.5μm

Number of Layers: 4 layers

Board Thickness: 0.18mm

Surface Finish: Immersion Gold

Capel Services:

Custom FPC flexible PCBs (1-30 layers), rigid-flex PCBs (2-32 layers), rigid PCBs (1-60 layers), reliable rapid turnaround PCB prototyping, fast SMT PCB assembly

Industries Served:

Medical devices, IoT, TUT, drones, aviation, automotive, telecommunications, consumer electronics, military, aerospace, industrial control, artificial intelligence, electric vehicles, and more...

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Capel’s 4-layer blind via FPC for industrial equipment is a precision circuit component tailored for high-integration industrial control scenarios, featuring a multi-layer structure and premium craftsmanship to meet complex signal transmission needs. Adopting a 4-layer design with blind via technology, it enables efficient interlayer signal interconnection, effectively reducing circuit space occupation and adapting to the miniaturization and high-density layout requirements of industrial equipment.

In terms of core material selection, the inner layers use double-sided adhesive-free electrolytic 12/25 substrate, and the outer layers adopt single-sided adhesive-free electrolytic 12/12.5 substrate. The electrolytic copper foil offers excellent conductivity and signal transmission stability, accurately carrying multi-channel control signals and data commands of industrial equipment. The surface is covered with 27.5μm double-sided yellow coverlay, which provides both insulation protection and wear resistance, resisting oil, dust and corrosion in industrial environments. With a precisely controlled thickness of 0.18mm, its thin and flexible properties fit easily into narrow internal spaces of equipment while ensuring stable circuit structure.

The immersion gold surface treatment creates a uniform and dense gold layer, which not only significantly enhances the oxidation resistance and wear resistance of pads but also ensures stable contact with connectors and components. Even under industrial working conditions with high-frequency plugging or long-term vibration, it maintains low contact resistance, guaranteeing accurate and continuous signal transmission and greatly reducing equipment failure risks.

Capel Flexible PCB & Rigid-Flex PCB Process Capability

Category	Process Capability	Category	Process Capability
Production Type	Single layer FPC / Double layers FPC Multi-layer FPC / Aluminum PCBs Rigid-Flex PCB	Layers Number	1-30 layers FPC 2-32 layers Rigid-FlexPCB 1-60 layers Rigid PCB HDI Boards
Max Manufacture Size	Single layer FPC 4000mm Double layers FPC 1200mm Multi-layers FPC 750mm Rigid-Flex PCB 750mm	Insulating Layer Thickness	27.5um /37.5/ 50um /65/ 75um / 100um / 125um / 150um
Board Thickness	FPC 0.06mm - 0.4mm Rigid-Flex PCB 0.25 - 6.0mm	Tolerance of PTH Size	±0.075mm
Surface Finish	Immersion Gold/Immersion Silver/Gold Plating/Tin Plating/OSP	Stiffener	FR4 / PI / PET / SUS / PSA/Alu
Semicircle Orifice Size	Min 0.4mm	Min Line Space/ width	0.045mm/0.045mm
Thickness Tolerance	±0.03mm	Impedance	50Ω-120Ω
Copper Foil Thickness	9um/12um / 18um / 35um / 70um/100um	Impedance Controlled Tolerance	±10%
Tolerance of NPTH Size	±0.05mm	The Min Flush Width	0.80mm
Min Via Hole	0.1mm	Implement Standard	GB / IPC-650 / IPC-6012 / IPC-6013II / IPC-6013III

Capel manufactures customized high-precision Rigid Flexible Circuit Board / Flexible PCB / HDI PCB with 15 years of experience with our professionalism

2 Layer Flexible PCB Boards Stackup

4 Layer Rigid-Flex PCB Stackup

8 layer HDI PCBs

Testing And Inspection Equipment

Microscope Testing

AOI Inspection

2D Testing

Impedance Testing

RoHS Testing

Flying Probe

Horizontal Tester

Bending Teste

Capel provide customers customized PCB Service with 15 years of experience

Owning 3 factories for Flexible PCB&Rigid-Flex PCB, Rigid PCB, DIP/SMT Assembly;
300+Engineers Provide technical support for Pre-sales and after-sales online;
1-30 layers FPC, 2-32 layers Rigid-FlexPCB, 1-60 layers Rigid PCB
HDI Boards, Flexible PCB (FPC), Rigid-Flex PCBs, Multilayer PCBs, Single-sided PCB, Double-Sided Circuit Boards, Hollow Boards, Rogers PCB, rf PCB, Metal Core PCB, Special Process Boards, Ceramic PCB, Aluminum PCB, SMT & PTH Assembly, PCB Prototype Service.
Provide 24-hour PCB Prototyping service,Small Batches of circuit boards will be delivered in 5-7 days, Mass Production of PCB boards will be delivered in 2-3 weeks;
Industries we service: Medical Devices, IOT, TUT, UAV, Aviation, Automotive, Telecommunications, Consumer Electronics, Military, Aerospace, Industrial Control, Artificial Intelligence, EV, etc…
Our Production Capacity:
FPC and Rigid-Flex PCBs production capacity can reach more than 150000sqm per month,
PCB production capacity can reach 80000sqm per month,
PCB Assembling capacity at 150,000,000 components per month.
Our teams of engineers and researchers are dedicated to fulfilling your requirements with precision and professionalism.