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.:

US 6966022 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 15, 2005

Filed:

Apr. 04, 2002
Applicants:

Ross Stenfort, San Jose, CA (US);

Tianshu Chi, San Jose, CA (US);

Inventors:

Ross Stenfort, San Jose, CA (US);

Tianshu Chi, San Jose, CA (US);

Assignee:

Adaptec, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R031/00 ; H03L007/00 ; G11C008/00 ;
U.S. Cl.
CPC ...
Abstract

An invention is disclosed for determining integrated circuit (IC) logic speed. A storage element is provided that includes a reset input in electrical communication with a reset pin. A reset signal is then asserted at the reset pin, and a reset time is measured. The reset time is defined as the time period beginning when the reset signal is asserted and ending when the storage element resets. In this manner, the reset time can be used to determine a speed of the IC logic relative to a process. In one aspect, delay logic is provided that is in electrical communication with the reset pin and in electrical communication with the storage element. In this aspect, the delay logic delays the reset signal for a predetermined time period. Optionally, the reset time can be compared to a predetermined fast corner reset time and a predetermined slow corner reset time. Further, the IC logic speed can be correlated to a simulation using the embodiments of the present invention.


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