6163银河激光钢网BGA类开孔原则:
PITCH=0.4mm,开0.23m
PITCH=0.45mm,开0.26mm
PITCH=0.5mm,开0.3mm
PITCH=0.65mm,开0.35mm
PITCH=0.8mm,开0.45mm
PITCH=1.0mm,开0.55mm
PITCH=1.27mm,开0.65mm
若线路上孔径与该数据相差太远,请联系客服
0.4 0.5IC接地焊盘,按焊盘的60-70%开成方孔,若方孔大于1.5,请架桥,架宽最小0.3MM,架成十字
还是田字还是井字,看焊盘大小而定,若接地焊盘本来就很小,如1.0MM左右,则不用缩小
注:PITCH是指两个相邻焊盘的中心间距