Common problems about PCB board

The people of our country live in a fast-paced environment，where people are demanding more and more of what they want. Faced with the requirements of the people, all manufacturers are faced with quality pressure, among which PCB board industry pressure will be relatively large.

PCB board is a product of strict quality requirements and high precision production, in the face of pressure there will be many new difficulties need to be challenged and overcome. So let's make an understanding of some common quality problems of PCB and how to solve these problems.

1. PCB circuit short out:

PCB board short out is one of the common problems that lead to PCB board work, such as PCB board copper wire fracture and improper design are common. Solution: if the copper wire is broken, scrape the new copper sheet at the broken wire and solder it. Then solder the copper wire to the end of the PCB broken wire and make it connected. To solve the welding pad problem, the shape of the welding pad can be modified, such as the circular welding pad to oval or other shapes, the distance between the point and the point, to prevent short circuit problem.

2. Poor resistance welding of PCB board:

PCB board resistance welding is printed on the PCB surface with a layer of ink, which can insulate, protect the copper surface and play a beautiful role. So if there is any flaw is extremely easy to find. Solution: the problem for improve penetration to boost the ink concentration. For film to ensure the degree of drying ink.

3. Discoloration of PCB board solder pad:

The discoloration of solder plate is also a common problem when I come into contact with PCB board. The reason for this problem is that the temperature is too high. Solution: just turn down the temperature of the tin stove.

The above content is about PCB board common bad problems and solutions, hope these content can help you. For more information, please visit our shenzhen tongchuangxin electronics co., LTD.

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