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WLCSP packgae .4mm pitch sample gerber

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发表于 2014-10-6 00:00:00 | 显示全部楼层 |阅读模式
Hi All,
This is a kind request.
I need sample Gerber for 0.4mm pitch WLCSP package HDI board.
I need to know whether this pitch can be done in 3.5milsspacing/trace width in 9x9 Package




Regards,
Arunmaran
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发表于 2014-10-6 00:00:00 | 显示全部楼层
Switch your software to Metric and adjust grid accordingly.         
  
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发表于 2014-10-7 00:00:00 | 显示全部楼层
Most modern components are hard metric, the de-facto standard for SMD components (IPC-7351) is metric based, all mechanical design is metric, so it makes common sense to layout PCBs in metric...I have done for years.
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