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I design a layout with a third-party software (PyCell) which uses OpenAccess. Now I would like to do LVS check in Cadence. My plan is first import the generated oa database file into Virtuoso and use the built-in function to do LVS. But I have some difficulties in doing that. Could anyone give some advice? Thanks a lot.
In reply to Quek:
My problem is like this: I design a parameterized cell layout with certain technology in PyCell Studio which uses OpenAccess. But PyCell doesn't have the built-in function to do LVS check. So I am wondering if I can do it in Cadence instead, but don't know how to do it exactly. There should be some conversion between OpenAccess and the format Cadence uses, I guess. It seems like you have some ideas on how to do it. Would you please give more details? Thanks a lot.
QuekHi shvaWould you please provide more details on the problems which you have encountered? If all else fails, there is always the option of exporting the PyCell layout from your current oa tool from ABC vendor to gds format and then importing the gds into Virtuoso.ThanksQuek
In reply to shva:
Hi shvaI am not familiar with PyCell studio but some googling gave me this:http://www.ciranova.com/support/ic6.1.php
Perhaps you can give the above suggestion a try if you have not already done so. Regardless of the lvs tool which you are planning to use (Assura, PVS, etc), I am not sure if the PyCell data can be read in successfully by the tool (because I have never tried it). I think a better strategy would be as follows:a. Get Virtuoso to read the PyCellsb. Create your layout for lvs verificationc. Flatten it (or export it as gds using ciw:File->Export->Stream)d. Do lvsCadence does not support PyCells. We strongly recommend users to code SKILL pcells as their reliability have been proven in numerous tape-outsBest regardsQuek