Difference between revisions of "Whom do you trust?: Validating process parameters for open-source tools"

Revision as of 15:57, 30 June 2022

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

Downloads

Slides (TBD)
[https:peertube.f-si.org/xxxx Video recording] (TBD)

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.

@@ Line 1: / Line 1: @@
 * Speaker: R. Timothy Edwards
 * email: tim@opencircuitdesign.com or tim@efabless.com
-* other information: xxx
 ==Downloads==
@@ Line 8: / Line 7: @@
 ==Abstract==
-Lorem Ipsum<ref>E. Miller, ''The history of Lorem Ipsum'', (New York: Academic Press, 2005), 23-5.</ref> is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.<ref>R. Smith, "Dummy text repositories", ''Scientific American'', 46 (April 1978): 44-6.</ref>
+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==
@@ Line 14: / Line 13: @@
 * Repositories: https://github.com/RTimothyEdwards/magic  https://github.com/RTimothyEdwards/open_pdks
 * Main documentation websites: http://opencircuitdesign.com/magic    http://opencircuitdesign.com/open_pdks
-* Wikipedia page: https://en.wikipedia.org/wiki/XXX-YYY-ZZZ (if a wikipedia page about the software, or a page mentioning it, does not exist yet, please consider creating one). If it gets reverted or deleted, please create a page on https://wiki.f-si.org
-* Wiki page on wiki.f-si.org: https://wiki.f-si.org/index.php/XXX-YYY-ZZZ
-* The software has been used in the following projects: XXX, YYY, ZZZ
 ===Roadmap===
-* The software wishes to interface with the following tools: XXX, YYY
+* The project seeks help on: Curve fitting of vendor data to automatically generate coefficients for magic's analytic expressions of parasitic capacitance.
-* The project seeks help on: XXX, YYY
-==References==
-<references />