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Industry knowledge How to distinguish good from bad FPC software

Jul 16, 2018

The method of judging FPC circuit board is good or bad: first, distinguish the quality of FPC board from its appearance

In general, FPC circuit board appearance can be analyzed and judged from three aspects.

1. Standard rules for size and thickness.

The thickness of the circuit board to the standard circuit board is different, the customer can measure and check according to the thickness and specification of the product.

2. Light and color.

The external circuit board is covered with ink, and the circuit board can play the role of insulation. If the color of the board is not bright, less ink, insulation board itself is not good.

3. Weld appearance.

Because there are many parts in the circuit board, if the welding is not good, the part is easy to fall off, which seriously affects the welding quality of the circuit board, good appearance, careful identification and strong interface.

Second: high quality FPC circuit boards need to meet the following requirements

1. It is required that the telephone machine should be easy to use after the element is installed, that is, the electrical connection should meet the requirements;

2. Line width, line thickness and line spacing of the line meet the requirements, so as to avoid line heating, circuit breaking and short circuit;

3. Copper skins will not fall off easily under high temperature;

4. The copper surface is not easy to be oxidized, which affects the installation speed.

5. No additional electromagnetic radiation;

6. The shape is not deformed, so as to avoid deformation of the outer shell and dislocation of screw holes after installation.Now it is all mechanized installation, the hole position of circuit board and the distortion error of circuit and design should be within the allowable range.

7. High temperature, high humidity and special resistance should also be considered;

8. The mechanical properties of the surface shall meet the installation requirements;

Above is the FPC circuit board judgement good or bad method, when choosing FPC circuit board, must polish eyes.


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