07/08/2020, 8:06 AM
@User have you or the team thought about integration with the Xic tools? They have been a commercially developed toolset for a couple of decades before being open-sourced in the last couple of years. The UI is a little crusty but under the hood it's by far the closest open-source alternative to Virtuoso I've seen. Has schematic/spice/waveform viewer/layout/DRC/parasitic extraction. I would be interested to hear your thoughts on support for it / or the best way for the community (ie. me) to help make it work smoothly with skywater?
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Tobias Kaiser

07/08/2020, 11:10 AM
I have spent a weekend once trying to familiarize myself with Xic. I was also pretty enthusiastic before that about Xic, because it looks quite nice on paper (and I have recommended it in the past to others). Unfortunately, I found it quite unusable (e. g. regarding the way LVS works) and encountered several crashes / malfunctions even in the simplest scenarios (NAND gate in MOSIS SCMOS). It might be some problem with my setup though. Learning from that, I would likely prefer Klayout / Magic + some schematic editor in the future.


07/08/2020, 2:10 PM
OK, interesting. I've only ever browsed through some of the examples. But that's good to know, thanks for the info

Mike Frank

08/07/2020, 1:29 AM
At Sandia we've been using Xic successfully for schematics/simulations/waveforms for superconducting electronics, but I haven't really used it much for layout or CMOS yet. Anyway count me in as another upvote for Xic support.