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From: Jeff W. Sondeen (sondeen AT rcf-fs DOT usc.edu)
Date: Mon Aug 06 2001 - 02:22:12 EDT

  • Next message: Jeff W. Sondeen: "Re: Stacked Vias" 

    Siamak Modjtahedi writes:
 > I have been told that there is a limitation in magic in defining stacked
 > vias. Is this a limitation of magic or of some techfile? If it is that of

well, it depends what you mean by stacked vias, and it depends on whether
the stacking is homogenous (same size/overlap per layer), and a few other
things.  magic can handle homogenous stacking, some heterogenous cases,
and cases where there's no constraint between vias of different layers
(unconstrained "stacking").  but it certainly has trouble creating
nice symbolic contacts when vias are offset, understandably.

for more info, see 

 ftp://ftp.isi.edu/pub/sondeen/magic/new/README (etc)
and
 ftp://ftp.isi.edu/pub/sondeen/magic/new/beta/CHAGELOG

/jeff


 > magic, has the source been enhanced in the newer versions to allow stacked
 > vias?
 > 
 > -Siamak

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