|

楼主 |
发表于 2017-6-13 11:54
|
显示全部楼层
powerlg 发表于 2017-6-12 17:06 
; X& W2 h* }6 x# ~6 s" p- ^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 ... 1 W. J6 X+ b* ~" T/ m/ P
我们是16层板。。。他们说下面的情况符合
- @# g" x1 |8 x: ], zFor b) and c) above, the tests of 5.4.1.5.2 and 5.4.7 are not applied to the inner layers of a8 x @0 U% B2 w9 k, Y; S" h, a4 H
printed board made using pre-preg if the temperature of the printed board measured during; w& y4 u, K0 V. m2 D3 r8 R
the heating test of 5.4.1.4 does not exceed 90 °C.% ?, ` C- `3 O1 d( f: _
|
|