Manufacturing-oriented environment for synthesis of fabrication processes

John S. Wenstrand*, Hiroshi Iwai, Robert W. Dutton

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


The process design Aid (PDA), a design environment which bridges the gap between design and specification of semiconductor fabrication processes, is presented. The PDA, for the first time, uses a hierarchical process model supporting reuse of well-characterized process fragments, integrates design goals with process and simulation data in a single knowledge base, and provides direct support for the numerical optimization of process parameters and simulator calibration parameters. Details of a hierarchical, object-oriented process representation are discussed. Process objects provide high-level building blocks for process design, focusing attention on critical design parameters and supplying default values for other parameters. Spectral editors for process objects, simulation objects, mask data, and process flows; a menu-driven interface; and online documentation make the PDA easy to use. Results of modeling a 0.8-μm BiCMOS process with the PDA are presented, demonstrating automatic generation of consistent simulation and manufacturing specifications, efficient incremental simulation, and fast, interactive, closed-loop optimization of process parameters. 89% of the process parameters required for the BiCMOS process were supplied as defaults by the PDA process library. Incremental simulation greatly accelerated optimization of the width of a transistor base.

Original languageEnglish
Title of host publicationIEEE Int Conf Comput Aided Des ICCAD 89 Dig Tech Pap
Editors Anon
PublisherPubl by IEEE
Number of pages4
ISBN (Print)0818659866
StatePublished - 1989
EventIEEE International Conference on Computer-Aided Design (ICCAD-89): Digest of Technical Papers - Santa Clara, CA, USA
Duration: 5 Nov 19899 Nov 1989

Publication series

NameIEEE Int Conf Comput Aided Des ICCAD 89 Dig Tech Pap


ConferenceIEEE International Conference on Computer-Aided Design (ICCAD-89): Digest of Technical Papers
CitySanta Clara, CA, USA

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