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:
Jan. 24, 2012
Filed:
Nov. 06, 2008
Tomohiko Imada, Kanagawa-ken, JP;
Tomohiko Imada, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor integrated circuit design supporting system has a memory unit which stores cell information containing the number of power supply pads formed at a chip as well as names and the number of a plurality of IO cells, and a drive factor definition file defining a drive factor of each of the plurality of IO cells, a pad laying out section which tentatively lays out the power supply pads and input-output pads corresponding to the IO cells, using the cell information, a package virtual designing section which prepares a package drawing based on coordinates of the power supply pads and the input-output pads, which have been tentatively laid out, an electric characteristics data calculating section which calculates inductance of the power supply pads, using the package drawing, and a noise risk calculating section which calculates noise risk of each of the input-output pads, using the inductance and the drive factor definition file.