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:
Dec. 07, 2004
Filed:
Jan. 07, 1999
Applicant:
Inventors:
Mitsuo Matsumoto, Tokyo, JP;
Gerald Lewis Katz, San Jose, CA (US);
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/750 ; G06F 7/00 ;
U.S. Cl.
CPC ...
G06F 1/750 ; G06F 7/00 ;
Abstract
This invention discloses a method and system to search for a critical path which allows a quick and reliable search for a critical path by using an actual semiconductor device. When the number of the operating clock pulses between the input of a predetermined data to a semiconductor device and the output of the corresponding data is n pulses, each period of the n pulses is changed from a failing period T1 to a passing period T2 in order to search for a critical path.