What should I do if solder paste is mistakenly printed on the circuit board?

Solder pastePrinting isSMTThis is a very important process step in the manufacturing process. Many problems with poor soldering occur at this stage. During the process of printing solder paste, due to human operational errors, such as placing the circuit board in reverse or misalignment the steel mesh with the circuit board, solder paste can be mistakenly printed on the circuit board. So, what should be done in such a situation? Below, Shenzhen JJY Solder Paste Manufacturer will briefly introduce to you the commonly used methods for cleaning solder paste:

After mistakenly printing solder paste, many people's first reaction is to quickly remove it with a scraper. But is this method really effective? The answer is useful. The solder paste can be removed, but if the operation is improper, the scraper will also be damagedPCBCircuit boards, causing defective or scrapped circuit boards is not worth it. Therefore, this method is not recommended. The correct operation method is as follows:

I. Soaking

The wrongly printed circuit board needs to be soaked in a compatible solvent for a certain period of time.

Ii. Cleaning

It is necessary to use a soft-bristled brush made of soft material to scrub the surface of the circuit board, and try to remove the mistakenly printed solder paste as much as possible. Note that do not use hard materials or rags to wipe, as this may damage the circuit board. Repeat this cleaning process to remove the solder paste to the greatest extent possible.

Iii. Drying

Use an air gun to dry the circuit board until it no longer affects its continued use.

JJY Solder Paste Manufacturer mainly engages in lead-free solder paste.SMTSurface mount solder pasteledThe research and development, production and supply of solder paste. For more knowledge about electronic soldering, please contact and follow us. Welcome to interact with us.