PCB Technical - ​Skills for judging the good and bad of FPC circuit board

With the continuous development of science and technology, various fields have realized intelligence, so fpc circuit boards have also been widely used in various fields. With the continuous increase of fpc manufacturers, there will naturally be some merchants in the price and The quality is a problem, then the question is, how to judge the good or bad of the FPC circuit board?

Text label: flexible circuit board, fpc circuit board, fpc circuit board manufacturer, fpc soft and hard board,

With the continuous development of science and technology, various fields have realized intelligence, so fpc circuit boards have also been widely used in various fields. With the continuous increase of fpc manufacturers, there will naturally be some merchants in the price and quality. Doing tricks, then the question is, how to judge the good or bad of the FPC circuit board? Kaboer Technology has two methods for judging the good and bad of FPC circuit boards:

First: distinguish the good and bad circuit boards from the appearance

Under normal circumstances, the appearance of FPC circuit boards can be analyzed and judged through three aspects;

1. Standard rules for size and thickness.

The thickness of the circuit board is different from that of the standard circuit board. Customers can measure and check the thickness and specifications of their own products.

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 and there is less ink, the insulation board itself is not good.

3. The appearance of the weld.

The circuit board has many parts. If the welding is not good, the parts are easy to fall off the circuit board, which will seriously affect the welding quality of the circuit board. It is very important to have a good appearance, careful identification and a strong interface. Bad.

What types of fpc circuit boards and application industries are

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

1. The telephone is required to be easy to use after the components are installed, that is, the electrical connection must meet the requirements;

2. The line width, line thickness, and line distance of the line meet the requirements to prevent the line from heating, breaking, and short-circuiting;

3. The copper skin is not easy to fall off under high temperature;

4. The copper surface is not easy to oxidize, which affects the installation speed, and it will be broken soon after being oxidized;

5. There is no additional electromagnetic radiation;

6. The shape is not deformed, so as to avoid deformation of the housing and dislocation of the screw holes after installation. Now it is all mechanized installation, the hole position of the circuit board and the deformation error of the circuit and the 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 must meet the installation requirements;

The above is the way to judge the quality of FPC circuit boards. When purchasing FPC circuit boards, you must keep your eyes open.