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Shrink cell view during migration

kbhow

Hi,

Is there a way to shrink the cell view to certain resolution.

I was doing process migration from 45 to 65nm. After migrating and mapping all the via, inst and devices, noticed that the devices in new technology was obviously smaller than original tech file. In the other hand, shapes such as polygon, rect, path will remain the same.

Is there a way to do the shrinking for a cell view?

 

Regards,

How

Parents

  • Hi How,

    You can certainly shrink or scale things this way but it is not likely to give you the result that you would hope for.  Consider something like the following, a metal path abutting to a metal pin shape:

      .-----.------
  |     |
  |     | -----
  |     |
  |_____|______

    Which is then shrunk or scaled, you might get the following:

      .---. .-----
  |   | | ----
  |___| |_____

    The shapes may no longer abut or connect because they have both shrunk or been scaled in place.  This is what VLM takes care of, moving things so that the relative placements stay as originally intended.  As you may realise, this is not a trivial operation, hence there is a tool for it (and of course other third-party tools exist too).

    I hope that this answers your question.

    Best regards,

    Lawrence.

Reply

  • Hi How,

    You can certainly shrink or scale things this way but it is not likely to give you the result that you would hope for.  Consider something like the following, a metal path abutting to a metal pin shape:

      .-----.------
  |     |
  |     | -----
  |     |
  |_____|______

    Which is then shrunk or scaled, you might get the following:

      .---. .-----
  |   | | ----
  |___| |_____

    The shapes may no longer abut or connect because they have both shrunk or been scaled in place.  This is what VLM takes care of, moving things so that the relative placements stay as originally intended.  As you may realise, this is not a trivial operation, hence there is a tool for it (and of course other third-party tools exist too).

    I hope that this answers your question.

    Best regards,

    Lawrence.

Children
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