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| When PCBA operations, the tin whether put on gold finger? |
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When PCBA assembly, if only SMT, it only need to paste printing for the parts zone that need to install , then work on reflow , the solder will not flow to the finger area. If you want to wave soldering assembly , the finger area should be protected by a temporary shelter. Therefore, if you use the wave soldering process it will need to do a good job of masking (major program is the blue plastic cover, or high temperature glue stick) doing circuit boards.
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