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The Designer's Guide Community Forum › Other CAD Tools › Physical Verification, Extraction and Analysis › same layout but different extracted RC?
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same layout but different extracted RC? (Read 2164 times)
capri
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same layout but different extracted RC?
Jun 20th, 2007, 6:57pm  
I'm using star rcxt to extract the netlist. In my layout, there are some identical blocks.
I expected the same rc parameter is extracted from each block, but I checked the netlist,
each block's internal node's RC are different!! why this happens? how to fix it? thanks
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eng
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Re: same layout but different extracted RC?
Reply #1 - Jul 4th, 2007, 2:14pm  
When you have identical subblocks which are connected somewhere thru metal wires, the RC extraction considers these wires' parasitics and gives you the total paracitic on the net. OR it may have something to do with the extraction switches.
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