If this bump is soldered to the pad on a packaging substrate, solder gets wet in the whole region of the columnar bump upper surface and only a part of the side surface.
如果这个块焊接至布线基板上的焊盘，焊料将沾湿于柱状块上表面整个区域，和侧表面的部分区域。
If this bump is soldered to the pad on a packaging substrate, solder gets wet in the whole region of the columnar bump upper surface and only a part of the side surface.
如果这个块焊接至布线基板上的焊盘，焊料将沾湿于柱状块上表面整个区域，和侧表面的部分区域。
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