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zhouzhousmt:0.08 mm 其他需要锡量较大的地方开阶梯 (2019-12-20 17:38)
yangyy:我就是开0.1的啊,没啥子问题 (2019-12-21 11:39)
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制程小王子:首先你要考虑钢网的面积比,因为0.4pitch的BGA焊盘较小,0.1没有0.08下锡好,我和制程主管确认过,标准开孔时候直径0.225方形倒圆角,倒角0.05,钢网厚度0.08,希望可以帮助你。 (2019-09-30 08:38)
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