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From: Richard Lethin (lethin AT reservoir DOT com)
Date: Wed Nov 13 2002 - 10:55:18 EST

  • Next message: Jeff Sondeen: "Re: AMI 0.5um, pad frame from tanner, but in Magic?" 

    I noticed that MOSIS is offering AMI 0.5um (SCN3ME_SUBM.30, e.g., 
lambda=0.30um) this year for educational class projects.

However, the pad frame in MAGIC format in Sondeen's example directory 
(SN3M_SUBM.30.PADS.5000) seems to have huge pad layouts, so the 
(2551um)^2 example both exceeds the (1.5mm)^2 limit for educational 
projects at MOSIS, and is only 28 pins! (vs. the 40 pins in the 
SCNA.80.PADS.2000 frame).

MOSIS does make available Tanner's frame for 0.3um, but in GDS/CIF 
format.  And Tanner's frame looks pretty sweet - both meeting the 
(1.5mm)^2 guidelines and providing 40 pins (how MOSIS is going to bond 
the tinychip to such a thing impresses me).

The problem of course is that we'd like to use the MAGIC tools and drop 
in the Tanner frame.  That doesn't look so easy.  Reading the CIF into 
MAGIC using the SCN3M_SUBM.30 tech file, there are zillions of error 
messages about alignment, labels moving around, and the result has lots 
of DRC errors.

Can anyone suggest a course for making this easy?  I suppose there 
aren't that many components to the Tanner frame and we could go and fix 
the DRC errors.  But is there better magic, pun intended?

Thanks,

Rich

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