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Magic Mailing List |
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From: Jeff Sondeen (sondeen AT ISI DOT EDU) Date: Wed Nov 13 2002 - 13:06:31 EST
Richard Lethin writes: > 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. > why don't you start with these: (but it may not be recent if Tanner had a new release -- check file dates) from: ftp://ftp.isi.edu/pub/sondeen/magic/tanner_pads_ported_to_magic/scn05-pads/ami_release-2001-12-21.README 12/21/2001 jws release 2001-12-21 fixed PadVdd.mag cell slightly: reduced it's height from 1004 lambda to 1003 lambda, so it's equal to all other pads. fixed Lib_Hi-ESD_Pads.mag and Mini_Frame.mag to change position of PadVdd by 1 lambda. thanks to SB/UCSB /jeff > 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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