How to remove the situation where solder paste is mistakenly printed in the SMT process?

In the long termSMTPatchSolder pasteDuring the printing process, solder paste may occasionally be wrongly printed, making the functions of electronic products more complete. At presentSMTSurface mount technology employs surface mount components because the integrated circuits used do not have through-hole components, especially for large-scale and highly integrated circuitsIC. Due to the small solder joints, solder paste misprints often occur. Below, Shenzhen JJY Solder Paste Factory will briefly introduce to you the common methods for removing misprinted solder paste:

In the actual production and processing process, if the solder paste is mistakenly printed and directly scraped off, some problems that affect the production quality may occur. Under normal circumstances, it is generally necessary toPCBPut it in a special solvent, and then use a tool like a soft-bristled brush to remove the solder pastePCBRemove it from the surface and then clean it once again. During the cleaning process, do not apply excessive force. After soaking, it can be removed by rinsing with a mild sprayPCBSome marks remaining on the board were then dried with hot air. If a horizontal template cleaning machine is used, the cleaned surface should face down so that the solder paste can fall off the board.

SMTMethods for preventing solder paste defects in surface mount technology (SMT) processing plants:

During the solder paste printing process, the steel mesh needs to be printed with solder paste in accordance with the process requirements, and it is necessary to ensure that the holes of the steel mesh are aligned with the corresponding solder pads. Online, real-time solder paste inspection and inspection before reflow after mounting are very helpful in reducing process defects before soldering.

The above is all that JJY has shared with you today aboutSMTThis is all the content about how to remove the situation of mistakenly printing solder paste during the process. For more related information, please search for "Shenzhen JJY" on Baidu. We will update the information related to soldering regularly. Welcome everyone to pay attention. Thank you all!