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DLP9500芯片焊接问题

Other Parts Discussed in Thread: DLP9500

请教下,DLP9500 DMD芯片在焊接的时候,(因为是FLN封装,类似BGA,但是没球)。是直接焊接到电路板上还是需要制球?搞焊接的师傅说如果直接焊的话,无法检测是否有管脚虚焊。还有如果是回流焊的话,这个芯片能承受多少的高温?焊接的时候还有什么需要注意的地方?