芯片手册上给的球的直径是0.45到0.55mm,我从官网下的封装直径是0.533mm(21mil),但是感觉焊盘有点大不好打过孔,可以把焊盘的直径改小一点吗?
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1. 开发板上用的是16mil直径。你可以适当减小焊盘大小。
2. 也可以保持现有焊盘大小,在焊盘上直接打孔。