各位VIA 贯孔都设多少?
你想问啥?你写的那些都行..
放不下....改小OK嗎?10 改 8 ok?
一般最小D8
问你用的板厂工艺是否能达到...如果可以就只考虑过流能力就行了
其实这个还是很复杂的,你要是能搞懂来龙去脉,对任何via的参数都掌握,你就很厉害了。via简单点的参数是DHS, FHS, D2M, ANTIPAD, COPPER SLIVER, ASPECT RATIO,regular pad(inner and outer layers)。
像你写的d8,应该是FHS是8mil,其DHS是9.8mil。PCB等级2的话,其regular pad, 可以是19,antipad 30mil, D2M, 8.x mils,aspect ratio是厚径比,可以从6到16.x,甚至更大. 如果PCB等级是1的话,这些数值都可以变小或变大~~~
Thanks a lot !
請問,【DHS, FHS, D2M, ANTIPAD, COPPER SLIVER, ASPECT RATIO,regular pad(inner and outer layers)】這些是什麼?
drill hole size, finish holes size, drill to metal, copper sliver, aspect ratio-thickness to hole diameter, regular pad size.
drill hole size, finish holes size, drill to metal, copper sliver, aspect ratio-thickness to hole diameter, regular pad size.