技术专栏
BGA封装
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我的BGA封装:焊盘间距0.8mm,焊盘直径0.35mm,过孔内径0.2mm,过孔外径0.4mm,我怎么能够保证D大于0.35mm呢?
我的BGA封装:焊盘间距0.8mm,焊盘直径0.35mm,过孔内径0.2mm,过孔外径0.4mm,我怎么能够保证D大于0.35mm呢?