VLSI design movement
VLSI design methods (VLSI design methodology)
the design and development of VLSI design methods
Carver Mead and Lynn Conway
In contrast to our other successes, circuit layout seemed an intractable level of design abstraction. Questions of computational complexity also loomed: How could such complex, rapidly changing geometric layout rules be encoded, applied, and checked ─ given the increase incircuit desity anticipated in the coming years?
Invention of scalable design rules
In early 1977, I began asking myself: What is the simplest possible set of layout design rules?
I found the answer in a different question: What is the maximum from among the minimum lateral line widths, separations, extensions and overlaps at all levels for a given process?
Once found, I knew this one measure of process resolution could be used to limit minimum sizes for all layout features.
Suddenly it beamed down to me: MOS design rules should not be framed as sets of lengths but as sets of ratios of lengths. Such dimensionless rules could then be scaled to any process as multiples of a basic length unit in microns, a unit I called Lambda ( Greek lambda λ 😀)
(Lynn Conway, Reminiscences of the VLSI revolution : how a series of failures triggered a paradigm shift in digital design, Fall 2012, IEEE solid-state circuits magazine. [2012])
References
[6] H. Garfinkel, Studies in ethnomethodology, Prentice hall, Englewood cliffs, N.J., 1967.
[19] I. Sutherland, C. Mead and T. E. Everhart, “Basic limitations in microcircuit fabrication technology”, ARPA report R-1956-ARPA, published by Rand corporation, Santa Monica, CA, November 1976.
[20] I. Sutherland, “The problem : how to build digital electronic circuits from now to 1985”, Letter to W. R. Sutherland describing the challenges presented by advances in microelectronics and proposing the Xerox-Parc/Caltech collaboration, January 26, 1976.
[21] L. Conway, Ed., “The VLSI archive : an online archive of documents and artifacts from the Mead-Conway VLSI design revolution”, lynnconway.com. http://ai.eecs.umich.edu/people/conway/VLSIarchive.html
[31] mosis.com
[32] M. Marshall, L. Waller, and H. Wolff,
For optimal VLSI design efforts, Mead and Conway have fused devise fabrication and system-level architecture.
[33] E. M. Roger, Diffusion of innovations, Free press, New York, 1962.
https://teddykw2.wordpress.com/wp-content/uploads/2012/07/everett-m-rogers-diffusion-of-innovations.pdf
[34] Computer science and telecommunications board, National research council, Funding a revolution: government support for computing research, National academy press, Washington, DC, 1999, pp.113─122.
[35] M. Stefik and L. Conway, “Towards the principled engineering of knowledge”, AI magazine, vol. 3:3, pp.4─16, summer 1982.
[34] Computer science and telecommunications board, National research council, Funding a revolution: government support for computing research, National academy press, Washington, DC, 1999, pp.113─122.
[35] M. Stefik and L. Conway, “Towards the principled engineering of knowledge”, AI magazine, vol. 3:3, pp.4─16, summer 1982.
https://www.markstefik.com/wp-content/uploads/2011/03/1982-principled-engineering-knowledge.pdf
[41] W. R. (Bert) Sutherland, “Management of industrial research : exploring the unknown technical future”, Perspective series 2008─7, Sun labs, July 2008.
https://ai.eecs.umich.edu/people/conway/Memoirs/VLSI/Files/Management_of_Industrial_Research.pdf
[41] W. R. (Bert) Sutherland, “Management of industrial research : exploring the unknown technical future”, Perspective series 2008─7, Sun labs, July 2008.
https://ai.eecs.umich.edu/people/conway/Memoirs/VLSI/Files/Management_of_Industrial_Research.pdf
[42] W. R. (Bert) Sutherland, “Faith, Funds, & Fate: prerequisites for the development and transfer of new technology”, Presentation at the celebration of the 40th anniversary of USC-ISI, Marina del Rey, California, April 26, 2012.
[43] L. Conway, “The VLSI archive”, Electronic design news, June 3, 2009. http://edagraffiti.com/?p=101
(Lynn Conway, Reminiscences of the VLSI revolution : how a series of failures triggered a paradigm shift in digital design, Fall 2012, IEEE solid-state circuits magazine. [2012])
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πόλλ' οἶδ' ἀλώπηξ,ἀλλ' ἐχῖνος ἓν μέγα πόλλ' οἶδ' ἀλώπηξ,ἀλλ' ἐχῖνος ἓν μέγα
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(Ackoff's best : his classic writings on management, Russell L. Ackoff., © 1999, hardcover, John Wiley & Sons, Inc., p.139)
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No part of this publication may be reproduced, stored in, or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the prior permission of the publisher.
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NOTICE: In accordance with Title 17 U.S.C., section 107, some material is provided without permission from the copyright owner, only for purposes of criticism, comment, scholarship and research under the "fair use" provisions of federal copyright laws. These materials may not be distributed further, except for "fair use," without permission of the copyright owner. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtml
notice: Do not purchase this book with the hopes of curing cancer or any other chronic disease
We offer it for informative purposes to help cope with health situations and do not claim this book furnishes information as to an effective treatment or cure of the disease discussed ─ according to currently accepted medical opinion.
Although it is your right to adopt your own dietary and treating pattern, never the less suggestions offered in this book should not be applied to a specific individual except by his or her doctor who would be familiar with individual requirements and any possible complication. Never attempt a lengthy fast without competent professional supervision.
____________________________________
*2 “This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold with the understanding that the publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional person should be sought.”
──From a Declaration of Principles jointly adopted by a Committee of the American Bar Association and a Committee of Publishers and Associations
(Ackoff's best : his classic writings on management, Russell L. Ackoff., © 1999, hardcover, John Wiley & Sons, Inc., p.139)
“This [copy & paste reference note] is designed to provide accurate and authoritative information in regard to the subject matter covered. It is [archive] with the understanding that the [researcher, investigator] is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional person should be sought.”
──From a Declaration of Principles jointly adopted by a Committee of the American Bar Association and a Committee of Publishers and Associations
--
No part of this publication may be reproduced, stored in, or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the prior permission of the publisher.
The W. Edwards Deming Institute. All rights reserved. Except as permitted under the United States copyright act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher.
NOTICE: In accordance with Title 17 U.S.C., section 107, some material is provided without permission from the copyright owner, only for purposes of criticism, comment, scholarship and research under the "fair use" provisions of federal copyright laws. These materials may not be distributed further, except for "fair use," without permission of the copyright owner. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtml
notice: Do not purchase this book with the hopes of curing cancer or any other chronic disease
We offer it for informative purposes to help cope with health situations and do not claim this book furnishes information as to an effective treatment or cure of the disease discussed ─ according to currently accepted medical opinion.
Although it is your right to adopt your own dietary and treating pattern, never the less suggestions offered in this book should not be applied to a specific individual except by his or her doctor who would be familiar with individual requirements and any possible complication. Never attempt a lengthy fast without competent professional supervision.
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