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. 26, 2011
Filed:
Nov. 05, 2007
Hiroshi Arimoto, Kawasaki, JP;
Hiroshi Arimoto, Kawasaki, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A method of a layout a semiconductor circuit has obtaining transistor characteristic information on the basis of layout information about regions formed with transistors, obtaining a polynomial expression representing a relationship between characteristic values of a circuit including of the transistors and the transistor characteristic information, calculating a plurality of characteristic values corresponding to plural sets of transistor characteristic information by use of the polynomial expression, selecting part of the plurality of characteristic values on the basis of a restriction about the characteristic values, the layout information or the transistor characteristic information; and obtaining the transistor characteristic information or the layout information corresponding to the selected characteristic values.