The method of judging the quality of PCB
1, #PCB size and thickness must be goodness of fit with the specified external size and thickness, there can't be deviation. Circuit board surfaces without defects, deformation, peeling, scratches, breaks, short circuits, oxidized white, yellow, unclean, or excessive etching marks, no dirt, copper particles, and other impurities.
2, the ink covering layer is uniform, and bright, with no shedding, scratches, exposed copper, deviation, printing plate, and other phenomena.
3, screen printing in the symbols, letters clear, no omissions, inverted, deviation, and other undesirable phenomena.
4, the carbon film shall not have defects, deviations, short circuits, broken circuits, printing reverses, or other phenomena.
5, The PCB base plate molding can't be leakage, deviation, collapsed holes, phi, plug holes, burst beer, beer reverse, pressure, and other phenomena.
6, PCB edge should be smooth, with the #V_cutting process, pay attention to the V-cutting groove whether it causes line breaks, whether the two sides are symmetrical, and so on.
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Regional Sales Manager at PICA Manufacturing Solutions
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