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:
Apr. 29, 2003
Filed:
Sep. 17, 2001
Applicant:
Inventor:
Thomas Charles Brennan, Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/24 ;
U.S. Cl.
CPC ...
H04M 1/24 ;
Abstract
A method is shown which replaces single vias with redundant vias on candidate signals on a semiconductor integrated circuit chip. Where limited space prevents such replacement on more than one signal wire, the method assigns priority to the via through which more current must flow to charge or discharge capacitance. This prioritization reduces the magnitude of delay anomalies arising from vias containing process related resistance defects.