4L FR4+PI 0.6mm Board Thicness



   Base Material:FR4+PI

   Board Thickness:0.60mm

   Unit size:119.02 x 84.30mm


Surface Finishing: ENIG Thickness

   Solder Mask:Green 

   Copper OZ: 2OZ


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Plant invested capital

92 mil USD


Mass production---Qingyuan

Quick-turn production---shenzhen


350,000 sqm



Sales Revenue 2017

50 mil USD

Quality system

C-UL-US, ISO9001, ISO/TS16949

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Features: FPC must have MARK mark for substrate positioning, FPC itself should be flat. FPC is difficult to fix, consistency is difficult to guarantee when mass production, high equipment requirements. In addition, the control of solder paste and placement process is more difficult.

The key process: 1.FPC soft board fixing: It is fixed on the pallet from the printing patch to reflow soldering. The used pallet requires a small thermal expansion coefficient.

The placement accuracy is more than 0.65mm for the QFP lead spacing: the pallet is placed on the positioning template. The FPC is fixed on the pallet with a thin high-temperature tape, and then the pallet is separated from the positioning template for printing. The high temperature adhesive tape should have a moderate viscosity. After reflow soldering must be easy to peel, and there is no residual glue on the FPC.

The placement accuracy is less than 0.65mm for QFP lead spacing: The pallets are customized, and their process requirements must be minimally deformed after multiple thermal shocks. There is a T-shaped positioning pin on the pallet. The height of the pin is slightly higher than that of the FPC.

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1 Material selection [1]

2 production process and control of key parts

2.1 production process

2.2 Graphical transfer of inner monolithic

2.3 Multi-layer positioning of flexible materials

2.4 Lamination

2.5 Drilling

2.6 Drilling and Erosion

2.7 electroless copper plating, copper plating

2.8 Surface Solder Mask and Solderability Protective Layer

2.9 Shape Processing

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The characteristics of FPC determine its application area to cover all the application fields of the FPC in the PCB, such as:

mobile phone

Key board and side keys

Computer and LCD screen

Motherboard and display, etc.

CD Walkman



Components such as a suspension circuit (HD) of a hard disk drive and an xe package board.


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Keywords:FPC | Flex rigid board | circuit board