Solder paste 化金面积不准确
化金面积调试:好像不准skill导出如下图SOLDER PASTE PADS FOR SIDE A:-----------------------------Count Size----- ----196 16cir158 20x25 64 11x64 32 12x35 26 32x35 20 50x50 10 31x47 8 63x79 825x80 8 94x94 6 47x71 6 55x87 5 27x39 4 76x88 4 40cir 3 40x55 3 67x87 3 106x165 2 71x224 2 35x83 2 63x102 2 100x100 1 87x157 1 100x120 1 134x134Solder Paste Area For Side A: 673396 sq. milsSolder Paste Pad Count For Side A: 575SOLDER PASTE PADS FOR SIDE B:-----------------------------Count Size----- ----130 20x25 54 16x63 26 32x35 16 50x50 12 134x252 8 24x114 6 63x102 4 40cir 3 106x165 2 55x87Solder Paste Area For Side B: 719992 sq. milsSolder Paste Pad Count For Side B: 261结论:A: 673396 sq. mils+ B:719992 sq. mils=top面+bottom面=1393388 sq. mils化金面积=soldermask的总面积除以pcb面积即:Pcb的面积:3149.6*3937.0【mil×mil】1393388/3149.6/3937=11%而CAM350算得为58%
这个到底怎么计算?
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