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Unable to generate Proper Layouts

Hi,

Recently we upgraded to IC6.1.5-64b, in the older version of Cadence we were using UMC 180nm Pdk, after the upgrade we are not able to use this package effectively. When we generate Layout for UMC transistors from schematic , the Layout obtained does not follow design rules , such as placement of contact, size of contact, spacing between contacts, length of polysilicon, width of Poly etc. We are not able to debug this issue. I have attached the image of PMOS and NMOS layout for reference.

Displaying pmos and nmos layout.png

Andrew Beckett over 10 years ago

There's no picture attached, but to be honest, I think you're going to have to contact whoever provided you with the PDK, because presumably this is a PDK issue.
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SHEKHARvnit over 10 years ago

Thank you sir, here is the link to the picture i intended to attach https://drive.google.com/file/d/0BwbloDFEPKvuTG5VaTBhYUFDa01NNDVma25fSG92dVNwWWtr/view?usp=sharing
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Andrew Beckett over 10 years ago

Thanks for the picture. This probably means that the pcell code is making some invalid assumption which has resulted in it working correctly in the past, but that assumption is no longer valid. I suspect it's highly likely that a newer version of the PDK is available which addresses this issue, so as I said, you need to contact the supplier of the PDK for a fixed version. It's undoubtedly going to need a fix to the PDK whatever happens.
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SHEKHARvnit over 10 years ago

Thanks Andrew, i have downloaded the UMC 180nm Files/PDK for cadenceIC6.1 (which contains DesignKits,Models,RuleFiles etc.).Im not able to figure out how to link these files to cadence? Can u help us in installing these PDK in Cadence. Any Link, PDF, Tutorial will be of great help.
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Andrew Beckett over 10 years ago

I have no access to this PDK, so can't help. Shouldn't you ask the PDK provider? Not all PDKs are structured the same, so it's best to request documentation from whoever provided the PDK (presumably UMC).
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Andrew Beckett over 10 years ago

Or you could contact customer support and then we could work through it through you via a remote session.
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