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:
May. 11, 2004
Filed:
Sep. 30, 2002
Applicant:
Inventors:
Carl A. Monzel, Lakeville, MN (US);
Brandon R. Bartz, Bloomington, MN (US);
Assignee:
LSI Logic Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/24 ; G01R 3/126 ;
U.S. Cl.
CPC ...
H03B 5/24 ; G01R 3/126 ;
Abstract
A process monitor circuit useful for integrated circuit designs to provide manufacturing process tests for SRAM circuit structures incorporated in an integrated circuit design. In one aspect of the invention, the process monitor cell includes a plurality of SRAM circuit cells chained together in a manner to permit testing of a desired range of SRAM transistor power and a desired range of associated propagation delays. The process monitor cell thereby provides an accurate estimate of the quality of the fabrication process used to generate other functional SRAM cells within the integrated circuit design.