How to avoid solder paste defects in SMT patch processing

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How to avoid solder paste defects in SMT patch processing [Copy link]

Solder paste defects are a rather annoying phenomenon in SMT patch processing . In fact , we can also avoid the occurrence of solder paste defects by standardizing some small details in the process of SMT processing. For example, in PCBA processing, details such as the misalignment of dyeing tools, dry solder paste, templates and circuit boards may cause unnecessary solder paste to be produced at the bottom of the template or even during the PCBA OEM processing. Below, the editor of Pet Technology will give you a brief introduction on how to avoid solder paste defects in SMT patch processing.

How to deal with solder paste defects in PCBA processing:

The longer the operator waits after discovering a printing error after printing solder paste in SMT turnkey, the more difficult it is to remove the solder paste. When a problem is discovered, the improperly printed board should be immediately placed in a soaking solvent because the solder paste is easy to remove before it dries.

To prevent solder paste and other contaminants from remaining on the surface of the circuit board, wipe it with a clean cloth. After soaking, brush it with a mild spray and preferably use a hot air blower to dry it. If using a horizontal stencil cleaner, the cleaning side should be downward to allow the solder paste to fall off the board.

How to avoid solder paste defects in SMT patch processing:

The printing cycle is fixed in a specific mode during the printing process of the fully automatic printer. Make sure the template is located on the pad, which can ensure a clean solder paste printing process. For fine templates , if damage occurs between thin pins due to the bending of the template section , it may cause printing defects and short circuits.

Guangzhou Peite Electronic Technology Co., Ltd. www.gzpeite.com is a long-established electronic processing factory in Guangzhou. We can provide you with high-quality SMT patch processing services. We also have rich experience in PCBA processing. We can provide you with all the labor and materials for PCBA. Peite Technology can also undertake DIP plug -in processing, PCB production, and electronic circuit board manufacturing one-stop services.