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Extract the list of devices used in the layout

Vishesh Gupta

Hi,

I submitted a layout design for the tapeout. The company wants to confirm that they are using the correct flow and therefore  want  to extract the list of devices (pcell names) used in my design. Can someone help me how could it be done?

Thanks and Regards,

Vishesh

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  • Vishesh,

    The simplest way (without needing to write any SKILL code) would be to use either the UNIX "fastTree" command (if you run without any arguments it will tell you how to use it) or in the CIW Tools→Print Hierarchy Tree. You could take the output file from this and then process the result to find all the cellViews from your PDK. For example:

    fastTree -lib ether -cell top -view layout
    awk '$1=="gpdk090" { print $1,$2,$3 }' top.layout.tree | sort -u

    outputs the hierarchy from ether/top/layout and then processes it to find all the cellViews from gpdk090 - here's the output:

    gpdk090 nmos1v layout
    gpdk090 nmos2v layout
    gpdk090 nmoscap2v layout
    gpdk090 nmoscap2v3 layout
    gpdk090 pmos1v layout
    gpdk090 pmos2v layout
    gpdk090 pmoscap2v layout
    gpdk090 resm2 layout
    gpdk090 resm3 layout
    gpdk090 resnsppoly layout
    gpdk090 vpnp5 layout

    Regards,

    Andrew

  • in reply to Andrew Beckett

    Hi Andrew,

    Thanks a lot for the reply. It exactly solves my problem.

    Best Regards,

    Vishesh

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