FPC soft board is good or bad judgment

FPC soft board is good or bad judgment

1, the size and the thickness of the standard rules

On the standard circuit board PCB thickness is different, the size of the customer can be measured to check according to the thickness of the products and specifications.

2, light and color

External circuit board has ink coverage, circuit board can have the effect of insulation, if the board of the color is not bright, less ink, insulation board itself is not good.

3, weld appearance

Circuit board due to parts is more, if welding is not good, parts easy to fall off the circuit board, seriously affect the welding quality of circuit board, good appearance, carefully identify, strong interface is often important.

Quality of FPC circuit board meets the requirements

1, the required components installed after confidential phone works, namely the electrical connections to conform to the requirements;

2, line width of lines, thick line, the line is apart from the requirements, in order to avoid line fever, open circuit and short circuit;

3, copper under high temperature is not easy to fall off;

4, copper surface is not easy oxidation, influence on the speed of installation, with broken soon after oxidation;

5, no additional electromagnetic radiation;

6, shape without deformation, in order to avoid the shell deformation after installation, screw hole misalignment. Are now mechanized installation, PCB hole location and circuit and the design of deformation error should be within the range of allowed;

7, and high temperature, high humidity and special also should be within the scope of the consideration;

8, the mechanical properties should conform to the requirements of the installation surface;