AnsweredAssumed Answered

How to switch between lumped and distributed extraction depending on position in layout?

Question asked by ikeg on Aug 3, 2008
Latest reply on Aug 19, 2008 by karen_chow

 

Hello everyone.

 

 

I am using xrc to do flat extraction of a reasonably small layout. It works well, but if I do full '-rcc' distributed/coupled RC extraction, the resulting netlist is large and the memory consumption of xrc is also quite large. If I do simple lumped '-c' extraction the netlist is more reasonable and xrc doesn't use so much memory, which is great.

 

 

I know that with 'PEX INCLUDE DISTRIBUTED' I could limit distributed RC extraction to only certain nets. What I'd like to do, though, is extract the whole layout with '-c' except for a certain important region that I want to extract as '-rcc'. I'd like to specify this region just as a simple rectangle in the layout, not as a large list of nets. (I'd also be happy if I could specify it as a GDS cell, since the important region is its own GDS block.)

 

 

Is there any way to do this? ?:|

 

 

Outcomes