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region 收到工厂端反馈,有个客户的板铣槽给漏铣了,客户投诉了,让帮忙看看是什么问题。
" A- {* f2 R5 n% ]' F打开pcb如下图,可以看到板内有4个槽要掏空:0 n; u/ c7 X" O* u
4 Z8 j5 L G$ `8 f) D2 z" \( o转出gerber如下图,只有负片层有掏空区域,机械层没有槽的边框:, L, |& `: s( ?2 c1 E$ M" B
, f- c( E9 i3 L$ V- s查询属性:2 q5 l- y0 N' R% [2 B4 z
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5 s+ [5 V' v4 H. O客户将region的board cutout当作铣槽的指示了,认为生产应该可以看到。6 C& D3 s |/ q8 k v2 L+ ^$ l
生产人员并不清楚客户意图,转出的光绘文件没有这些槽的指示,并且这个pcb文件生产人员不熟悉(转gerber就几分钟时间,而设计人员设计一个pcb最少几天时间),并且转出的gerber不好核对pcb(通常只有个ipc网表对比,只能保证电性能连接),就导致了铣槽漏掉。( A- i% X, j( R1 [6 \
protel关于region的解释,可以看到region是控制铜皮不铺的区域面积。+ }3 p9 ~' E; J0 w* B
A copper region (Place » Solid Region) is a polygon-type solid copper area, i.e. a multi-sided, filled object, and will not pour around other objects. You can set the layer and net associated with the region through the Region dialog. If you select the Polygon Cutout option, a negative copper region is created which will create a cutout when placed over a solid polygon pour. If you select the Board Cutout option, the region is not treated as a copper area, becomes multi-layered and represent an aperture through the entire board.
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