A custom cell generation system for double-metal CMOS technology

Author

Gee, P. ; Hajj, I.N. ; Kang, S.M.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

fYear

1989

fDate

5-9 Nov. 1989

Firstpage

140

Lastpage

143

Abstract

An automatic module generation system is presented which is based on the metal-metal matrix layout style for double-metal CMOS technology. The circuit is described in SPICE format or by incidence matrices. The transistor circuit is partitioned into medium-sized cell containing up to 200 transistors and converted into physical mask layers using a cell generator. This generator has been designed to control the height of the cells and hence also the width, so that the cells can be used in a standard cell layout environment. The height of the cell is controlled by removing vertical constraints imposed on horizontal nets by adding additional columns to the cell.<>

Keywords

CMOS integrated circuits; VLSI; cellular arrays; circuit layout CAD; integrated circuit technology; modules; CAD; IC technology; SPICE; VLSI; additional columns; automatic module generation; custom cell generation; double-metal CMOS technology; height; horizontal nets; incidence matrices; metal-metal matrix layout; physical mask layers; standard cell layout environment; vertical constraints; width; CMOS technology; Circuit synthesis; Integrated circuit interconnections; Libraries; Logic design; MOSFETs; Matrix converters; Minimization methods; SPICE; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer-Aided Design, 1989. ICCAD-89. Digest of Technical Papers., 1989 IEEE International Conference on

Conference_Location

Santa Clara, CA, USA

Print_ISBN

0-8186-1986-4

Type

conf

DOI

10.1109/ICCAD.1989.76922

Filename

76922