2022-10-08
Causes of the PCB board break
To make a complete PCB, it needs to go through many complicated processes. In the PCB production process, there will be some unqualified products, and several common errors, such as PCB disconnection, which will affect the realization of PCB functions.
Causes of pcb board disconnection
1. Film pasting process: The film is not firmly affixed to the ground, and bubbles appear. If the film is wet, there will be garbage pollution.
2. Exposure process: problems caused by scratches or garbage on the negative film, including exposure machine problems, insufficient exposure parts, etc.
3. Development process: the development is blurry and unclear.
4. Etching process: the nozzle pressure is too high, and the etching time is too long.
5. Electroplating problem: the electroplating is uneven or the surface has adsorption force.
Therefore, if you want to find out what causes pcb board wire breakage, you should first look at the form of wire breakage, find out which process is the cause of the problem of PCB board wire breakage by analyzing the form of wire breakage, and then gradually check the possible causes in the production process.
Causes of pcb board disconnection
1. Film pasting process: The film is not firmly affixed to the ground, and bubbles appear. If the film is wet, there will be garbage pollution.
2. Exposure process: problems caused by scratches or garbage on the negative film, including exposure machine problems, insufficient exposure parts, etc.
3. Development process: the development is blurry and unclear.
4. Etching process: the nozzle pressure is too high, and the etching time is too long.
5. Electroplating problem: the electroplating is uneven or the surface has adsorption force.
Therefore, if you want to find out what causes pcb board wire breakage, you should first look at the form of wire breakage, find out which process is the cause of the problem of PCB board wire breakage by analyzing the form of wire breakage, and then gradually check the possible causes in the production process.
