The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 1994
Filed:
Aug. 08, 1991
Applicant:
Inventor:
Abbas El Gamal, Palo Alto, CA (US);
Assignee:
SiArc, Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307446 ; 307443 ; 307465 ; 307466 ; 257804 ;
Abstract
An improved cell for use in a mask programmable gate array is disclosed herein. The preferred cell comprises two compute sections, each comprising two pairs of medium size P and N-channel transistors, two small N-channel transistors, and a single small P-channel transistor. Each cell also comprises a high efficiency drive section containing a single bipolar pull-up transistor, a large N-channel pull-down transistor, and a small P-channel transistor. By using this cell, an extremely high compute capability per die area is achieved.