How to properly handle the misprinting of solder paste during the smt assembly process?

insmtDuring the surface mount technology (SMT) processing, it is inevitable to encounter various problems. If there is a misprint during the processingSolder pasteHow to handle it properly? The following is an explanation of the commonly used solder paste cleaning methods by JJY solder Paste Manufacturer:

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

A soft-bristled brush made of soft material should be used to scrub the surface of the circuit board. Try to remove the mistakenly printed solder paste as much as possible. Be careful not to 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.

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