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Other CAD Tools >> Physical Verification, Extraction and Analysis >> schematic from layout?
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Message started by topquark on Jul 3^rd, 2007, 12:17am

Title: schematic from layout?
Post by topquark on Jul 3^rd, 2007, 12:17am

Hey folks,

I'm using cadence_ic 5.10.41.x. is there a way to generate a schematic view from layout view?

In particular, I'm making metal plate caps which are not included in the library. I create the layout, simulate extracted netlist to get the cap value for the given plate dimensions.
How can i associate this layout view with a "analogLib" capacitor schematic/symbol??

Any pointers?

Title: Re: schematic from layout?
Post by topquark on Jul 10^th, 2007, 8:06am

Hey guys,
I figured it out (thanks to my boss!)

You don't have to 'generate' schematic out of layout. Do the usual way. just add lvsIgnore labels when you want a certain element to be discounted in layout.
In my case, i need the actual plate cap between the metal layers. So, I put analogLib capacitors in schematic and ignore them in LVS.
Once, LVS is clean, extract the netlist and I get the plate cap 8-)