On Thursday, January 24, 2019, Tim Edwards tim@opencircuitdesign.com wrote:
Thanks, Luke, for mentioning Alliance. I had forgotten about it, but now
have read this book which has a nice example of using it:
An existance proof for Alliance documentation! Thanks for dredging this up!
Honestly, I have never seen Alliance documentation before. This is more of a tutorial than actual proguram documentation, but it does the job.
Slightly discouraging is the line that the (NERO) router can handle "up to 4K gates".
Autorouters are damn hard, limitations do not surprise me.
Another discouraging line is "Real pads are specific to a foundry and must be designed to fit to those of Alliance".
Foundries above 90nm just do not give out the cell libraries. They just don't. There are cell libraries for 180, 130 and 90nm if you look.
The rate at which I came up with discouraging lines by randomly perusing the document was also discouraging. . .
Contact jp on mailing list, he is very helpful.