PADS中应该注意的一个问题。

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PADS 2005 LAYOUT
tools-options-design-drill - R/ f+ g; y( o2 y4 ~/ a! e







2008-9-8 18:24 上传
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Specifying Copper Plating Thickness for Drill Holes]1 }9 p* e3 m
Use the Drill Oversize box to specify the amount of space that PADS Layout automatically adds to plated drill holes to account for copper plating inside drill holes. This amount of space is called drill oversize. The drill size plus the drill oversize equals the finished NC drill size diameter. CAM outputs for NC drill reflect the finished size value., l# K9 Q' H0 g6 z* n* W

Drill oversize also applies to plated via and pin drill holes. You specify whether a via or pin is plated in the Pad Stack Setup dialog box.