View source for Whom do you trust?: Validating process parameters for open-source tools

* Speaker: R. Timothy Edwards
* email: tim@opencircuitdesign.com or tim@efabless.com

==Downloads==
* [[:File:edwards_fsic2022_slides.pdf|Slides]] 
* [https://peertube.f-si.org/videos/watch/657e7325-d9fb-461b-88d0-b8ec97213e71 Video recording]

==Abstract==
Foundries often provide important process data in formats that are proprietary, often not human-readable, and restricted in use to specific commercial EDA tools.  As a "case study", I will discuss the long journey of obtaining trusted values for parasitic capacitance in the SkyWater sky130 open PDK.  I will review how I obtained vendor data, cross-checked against an open-source field equation solver and other sources, and updated the parasitic extraction methods in the Magic VLSI layout tool to incorporate a number of effects that were previously not accounted for, and how Magic's extracted output can be used to generate data for other open-source EDA tools such as OpenROAD.

==Software==
===General information===
* Repositories: https://github.com/RTimothyEdwards/magic  https://github.com/RTimothyEdwards/open_pdks
* Main documentation websites: http://opencircuitdesign.com/magic    http://opencircuitdesign.com/open_pdks

===Roadmap===
* The project seeks help on: Curve fitting of vendor data to automatically generate coefficients for magic's analytic expressions of parasitic capacitance.