请教calibre的drc rule中voltage-dependent rules是指那些rule？

X6J6P6

大家好，如题，

calibre的drc rule中voltage-dependent rules是指那些rule？谢谢各位。

bubushenghua

在virtuoso XL中有介绍。
voltage-dependent rules are critical for design processes at 45nm and less.
the support for theses rules is based on the ability to use user-defined layer purposes that represent voltage ranges and on the ability to define design rule constraint groups  within these voltage ranges.