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Why does the phenomenon of false soldering occur in SMT assembly?
source: JJY Release Date: 2023-09-04

SometimesSMTIn surface mount technology (SMT) processing, there is an annoying poor processing phenomenon, which is false soldering. The manifestation of false soldering is generally on the surfaceSMTSurface mount components are soldered to the pads, but in reality, they are not perfectly integrated. After going through various complex processing techniques in electronic processing, a kind of poor soldering phenomenon is very likely to occur.

There are generally two specific reasons for the formation of false soldering. One is thatSMTDuring the processing, the unstable state of intermittent connection and disconnection is caused by improper processing and production techniques. Another reason is that the solder joints of electronic products, especially those with severe heat generation, age during long-term use, leading to the peeling of solder joints.

Then, why does the poor processing phenomenon of false soldering occur during the electronic processing? The following is JJYSolder paste manufacturerLet me introduce to you the reasons for false soldering:

Solder paste

1There is a defect in the pad design. In the design of printed circuit boards, the existence of through holes on the pads is a major defect. It should not be used unless absolutely necessary. Through-holes will lead to solder loss and solder shortage.

2There is oxidation on the printed circuit board.

3InSMTDuring the surface mount technology (SMT) process, for printed circuit boards with solder paste, the solder paste is scraped off, reducing the amount of solder paste on the relevant pads and resulting in insufficient solder.

4,SMTPoor quality, outdated, oxidation and deformation of surface mount technology (SMT) processing result in false soldering.

5The deoxidizing ability and activity of the solder paste are insufficient.

As a 15-year-old veteran solder paste manufacturer, JJY has always been committed to the research and development and production of solder paste. Our solder paste is of stable quality, without solder disconnection, false soldering or monument erection. No residue, Wuxi beads, bright, full, firm solder joints with excellent electrical conductivity. If you have any needs, please feel free to contact us.

edit: JJY

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