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:
Jul. 17, 2007
Filed:
Dec. 03, 2004
Andrej A. Zolotykh, Fryazino, RU;
Elyar E. Gasanov, Moscow, RU;
Alexei V. Galatenko, Moscow, RU;
Ilya V. Lyalin, Moscow, RU;
Andrej A. Zolotykh, Fryazino, RU;
Elyar E. Gasanov, Moscow, RU;
Alexei V. Galatenko, Moscow, RU;
Ilya V. Lyalin, Moscow, RU;
LSI Corporation, Milpitas, CA (US);
Abstract
A method for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.