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发表于 2017-6-13 11:54
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powerlg 发表于 2017-6-12 17:06 2 H/ [: w3 w2 T# @6 l, l
这个有点过了吧? cemented joints意思是由粘合连接。首先,你的PCB是多层板吗?如不是,就不存在粘合连接 ...
9 x& Y& \( e8 X4 t我们是16层板。。。他们说下面的情况符合
5 i, X* c. d( q/ SFor b) and c) above, the tests of 5.4.1.5.2 and 5.4.7 are not applied to the inner layers of a6 l5 K" [6 e1 m+ w# ], J( P
printed board made using pre-preg if the temperature of the printed board measured during- O( e; J$ |: G9 K
the heating test of 5.4.1.4 does not exceed 90 °C.
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