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From: Kiem Nguyen (kiem AT integration DOT com)
Date: Thu May 23 2002 - 14:13:09 EDT

  • Next message: Kiem Nguyen: "source code and techfile for tsmc 0.35um!"

    Erik,
    Thank you for your help.  We are using this tech file to check the database
    before
    we sent it out to fab.
    In our standard procedure, every process we always write two separate
    techfiles one for layout
    and the other is for gdsii check and cif out to fab eventually.  We know
    exactly what we
    cifin and cifout in the gds techfile.  That why in my previous email I wrote
    "what I see is what I sent to fab" for the gdsii techfile.
    
    I did manage to output the labels correctly :-) !
    
    Thanks,
    Kiem
    
    
    ----- Original Message -----
    From: "erik peterson" <erik AT yanntek DOT com>
    To: "Kiem Nguyen" <kiem AT integration DOT com>
    Cc: <magic-dev AT csl DOT cornell.edu>
    Sent: Monday, May 20, 2002 7:50 AM
    Subject: Re: streaming out labels in magic!
    
    
    > Kiem Nguyen wrote:
    > >
    > > We have a magic gdsii techfile.  what this techfile does is reading
    > > gdsii database and place each layers on its own plane.  It does not
    > > do any sizing.  What we see is exactly what we will send to fab.
    > > This allow us to check the database before we send to
    > > fab.
    > > Here is my problem.  I am able to stream in the label and it attaches to
    > > the right layer but I could not stream it out.  Does anybody know how
    > > to do this?
    > >
    > > I don't have this problem with the other techfile (non-gdsii) which we
    > > called it symbolic techfile.
    > >
    > > Thanks,
    > >
    > > Kiem
    > > ------------------------------
    > > Kiem Nguyen
    > > E-mail: kbn AT integration DOT com
    > > Tel : (650) 623 9136
    > > Fax : (650) 969-4582
    >
    >
    >   hi Kiem!
    >
    >   I saw you say: "What we see is exactly what we will send to fab." and i
    > shuddered.  You are NOT seeing exactly what is sent to the fab if the gds
    > you are looking at was made with another tool.  Magic will try its best to
    > recreate the original gds, but unless you made the techfile yourself and
    > know EXACTLY what magic will mangle and wont mangle, you are using the
    > wrong tool to inspect the final gds.
    >   I use the trick you are using to debug and build magic techfiles, but
    > i wouldnt bet my job using it for final tapeouts.  As for your labels, it
    > would help if you told us what techfile you are using.  My guess is you
    > arent cifing out the labels in your cifout section.  If you cant post the
    > complete techfile, at least post the cifout layer section you are
    expecting
    > labels to come out on :)
    >  -erik
    >
    


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