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How to use Cadence example in cadence_inst/tools.lnx86/dfII/samples/ROD/rodPcells for auto abutment?

TiNat
Hi, I have used PDK of XFAB (Germany Company) and Tower (Israeli Company).But recently in vlxhelp.pdf I have found an auto abutment capability in Layout XL. Unfortunately, neither XFAB Pcells nor Tower Pcells don't have such capability. I want to create my own Pcell with auto abutment ability. Firs of all I want to see how auto abutment look in practice. It is a good thing that Cadence has an example in cadence_inst/tools.lnx86/dfII/samples/ROD/rodPcells. I have install simple_mos components, copy symbol view nmos4 from analogLib. But auto abutment doesn't run. What is the matter? Skill file simple_mos.il contains abutment block. Where was I mistaken? Regards.
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  • I just tried the simplemos devices from the sample pcells, and abutment works for me. Maybe something in your environment has turned off abutment in VLS XL?

    Not sure which version you're using, but in IC615 in VLS XL you can do Options->Layout XL and then on the Generation tab is "Abut transistors" turned on?

    I'm not really familiar with recent PDKs from XFAB or Tower, but I'd be surprised if they don't support abutment. It would certainly be worth checking with them.

    Regards,

    Andrew.

Reply

  • I just tried the simplemos devices from the sample pcells, and abutment works for me. Maybe something in your environment has turned off abutment in VLS XL?

    Not sure which version you're using, but in IC615 in VLS XL you can do Options->Layout XL and then on the Generation tab is "Abut transistors" turned on?

    I'm not really familiar with recent PDKs from XFAB or Tower, but I'd be surprised if they don't support abutment. It would certainly be worth checking with them.

    Regards,

    Andrew.

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