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what are the common problems and treatment methods of pcba patch?
PCB News
what are the common problems and treatment methods of pcba patch?

what are the common problems and treatment methods of pcba patch?

2021-11-07
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Author:Frank

What is pcba patch, what are the common problems and treatment methods of pcba patch?
  In some industrial enterprises, PCBA patch is usually used. PCBA patch is very important for PCBA production process. As an indispensable process, it has been recognized and accepted by the majority of enterprises. The PCBA is mainly to mount and plug in some components on some PCB templates, and to realize the process of welding. So, what is pcba patch? The following editor will give you a brief introduction.

PCB board

  What is pcba patch?

  The so-called pcba patch is mainly through the PCB template, and then apply solder paste on the template, and then carry out the work of mounting the component, and complete the soldering technology through reflow soldering. The pcba patch technology is similar to SMT. Both of these technologies belong to the electronic component assembly technology, but there are some differences. SMT patch technology belongs to the processing technology of supplied materials, while the pcba patch technology belongs to the processing of OEM materials.

  Common problems and solutions of pcba patch

  1. Brushed tailing

pcb

  When installing the pcba patch, wire drawing and tail breakage usually occur. This situation is the most common in dispensing, and there are many reasons for it. For example, the dispensing pressure is too high and the patch glue expires. Or the quality is not good, the viscosity of the patch glue is too large or the inner diameter of the glue nozzle is too small. If these situations occur, they should be inspected in time, and technical treatment should be carried out to improve the quality of the product according to the situation of the problem. For example, if the inner diameter of the glue is too small, the glue with a larger inner diameter should be replaced. If the dispensing pressure is too large, the dispensing pressure should be lowered.

  2. The glue nozzle is blocked

  If the glue nozzle is blocked, it is probably because there is no glue in the glue. There are many reasons. Generally speaking, it is caused by the pinholes that are not completely cleaned, or some impurities are mixed in the film. In order to block the holes, there is another situation that is caused by the mixing of water-insoluble glues. Once these problems are found, they should be resolved in time, such as changing to a clean plastic head, or changing to some better quality film.

   What is pcba patch? Now everyone knows, when PCB patching, you can rely on the above problems to deal with and solve. At the same time, you also need to pay attention to the normal operation process when PCB patching, so that you can Improve the yield of pcba patch, and then bring greater profits to the enterprise. At present, the country has higher and higher requirements for environmental protection and greater efforts in link governance. This is a challenge but also an opportunity for PCB factories. If PCB factories are determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and PCB factories can get opportunities for further development.