How to give the GDS to StarRCXT for parasitic extraction?

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ravig

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Hi,
Can we give the gds directly to StarRCXT for parasitic extraction. Or do we need some kind of database like Milkyway. Can anybody tell me how to proceed with StarRCXT having only GDS and StarRC related files.

thanks
Ravi
 

starrc nxtgrd format

At least you should have the netlist and the databasea like Milkyway.Only GDS is not enough.

Regards

flyankh
 

synopsys hercules gdsin format

you need to have the spice netlist converted into nettran format ,a synopsys tool is there to convert,then you have run hercules on the GDS .
Once hercules run is over ,run star_Xtract -clean star_cmd.
star_cmd is a file which has the Milkyway database and other information.
 

hercules lvs

Yeah we can create Milkyway database from hercules. But to run the starRC properly, do we need to have the design LVS clean from hercules. Even if LVS is not clean, can we proceed to starRC with whatever the Milkyway database Hercules has generated.

ravi
 

hercules nettran

ya you can extract the netlist using star_Xtract if the layout is not clean from hercules LVS but make sure if it is calibre or any other eda tool LVS clean....
 

mapping file for starrc

Dear kumard35b,
My LVS is clean in Calibre. But I have to run Hercules LVS to create Milkyway database. And it's not cleaning up in Hercules. Still I passed the Milkyway library created to StarRCXT but it is gving error in extraction.
Can you please help me out like what options should I use in the Hercules rule file and also in StarRCXT command file.

Thanks
RaviG
 

Re: StarRCXT

i think you should have a nxtgrd file,milkyway database ,a mapping file for grd layer and milkyway layer.
 

StarRCXT

use Hercules GDSIN command to stream the GDS/gdsii/stm format into Milkyway....

Nettran the netlist format into Hercules HERC netlist format....

Extraction....... go go go...
 

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