CAMELEON: a process-tolerant symbolic layout system

Author

Croes, Kris ; De Man, Hugo J. ; Six, Paul

Author_Institution

IMEC Lab., Heverlee, Belgium

Volume

23

Issue

3

fYear

1988

fDate

6/1/1988 12:00:00 AM

Firstpage

705

Lastpage

713

Abstract

CAMELEON is a symbolic layout system, suited for industrial designs, that delivers layouts that can be compared with (orthogonal) manual layouts. This is obtained by: (1) a technology description language (TDL) describing layout primitives and design rules, which allows the customization of the system to any technology; (2) the ability to handle complex primitives, like S- or L-shaped transistors, allowing dense packing of diffusion blocks; and (3) considering compaction as a basic operation in the creation of stick diagrams. The designer can control compaction and is provided with adequate feedback. The conditions to obtain automatic technology conversions are discussed. The compaction method is explained extensively, in particular the partitioning and the covering method, used to increase time performance. A fast circuit-extraction module makes the link to simulation and verification tools. Some basic electrical rules are also checked.<>

Keywords

circuit layout CAD; field effect integrated circuits; integrated logic circuits; CAMELEON; L-shaped transistors; S-shaped transistors; automatic technology conversions; basic electrical rules; compaction; complex primitives; covering method; creation of stick diagrams; customization; dense packing of diffusion blocks; design rules; fast circuit-extraction module; industrial designs; layout primitives; partitioning; process-tolerant symbolic layout system; rule checking; simulation tools; technology description language; verification tools; Automatic control; Circuit simulation; Compaction; Design methodology; Error correction; Feedback; Laboratories; Manuals; Very large scale integration;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.309

Filename

309