We are proud to announce the birth of the Free Silicon Foundation (https://f-si.org)!
We organize a conference in Paris, March 14-16 2019, to promote:
1. Free and Open Source (FOS) CAD tools for designing #VLSI circuits
2. the sharing of hardware designs
3. common standards
4. the freedom of users in the context of #silicon technology
Program and submissions:
Last year's conference was a smaller event (one day only) and the slides are available here:
https://www-soc.lip6.fr/events/pastevents/2018/ . For this year, recordings are not planned yet.
We contacted foundries too - let's see how far we can go in the direction of opening the PDKs: We have already fabricated RISCV chips, but various NDAs did not allow to publish layouts. We are working to change that. At FSiC there will be a session about this too.
Do foundries limit you in using self-created PDKs for basic elements?
Do they claim ownership of self created layouts when their design rules and layer definitions are used?
It depends from the foundry. Still, 100% self-created standard cells do not contain (if at all) accurate spice models necessary to make analog components (needed for example for input/output) so only simple digital-only circuits are possible.
If the self-created cells can be derived from general abstract principles (and then adapted to the exact foundry parameters), the foundry should not be able to claim any ownership.
So for every foundry, to 'free' the library incl. the simulation models, you have to repeat the foundries work of producing a test circuit, characterize it and then derive models from it.
That's hell of a task.
Hope they cooperate instead and give the data voluntarily.
mastodon.f-si.org is one server in the network