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:
Aug. 17, 2010
Filed:
Jan. 09, 2007
Masakazu Tanaka, Kyoto, JP;
Masakazu Tanaka, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Using layout position information as input, in a position-dependent variation amount calculation step, position-dependent variation amount information which is a variation amount of a characteristic parameter or a shape parameter variable depending on an arrangement position of each element constituting a design target semiconductor integrated circuit is calculated. Thereafter, a simulation is performed using circuit information. In the simulation, a value for the circuit information is corrected according to a position-dependent variation amount of the position-dependent variation amount information, and a result of the simulation is calculated. Accordingly, a simulation for a circuit characteristic using a variation amount depending on an arrangement position of a device and the like can be performed with layout position information for a semiconductor integrated circuit.