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daneyer:普通板子FR-4的TG點也就是140/150度,你還用300度的浸錫爐,板子不變形才奇怪呢是你的制程問題 (2014-04-02 19:37)
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张营涛:PCB厂有直接责任,可以让他们改为高Tg板材来改善PCB变形 (2014-03-06 13:53)
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一叶天空:恩。浸锡炉温弄多少合适?我浸锡炉温度降到260的时候,冷焊好多。后来加上预热120度,2分钟,用270度也有较多的连焊。还是说我需要用高TG的板材? (2014-04-10 13:17)
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