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:
Jun. 02, 2009
Filed:
Mar. 03, 2006
Yoshiyuki Kawakami, Osaka, JP;
Yoshiyuki Kawakami, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
When dummy patterns are arranged to planarize LSI layout patterns, a plurality of dummy patternsare arranged in a wiring layer in which signal wiring patternsare formed, so as to be inclined at an angle of generally 45 degrees toward the associated signal wiring patterns. These dummy patternscross signal wiring patternsformed in another vertically adjacent wiring layer to have an inclination angle of generally 45 degrees. A plurality of dummy patternsare located in the wiring layer in which the signal wiring patternsare formed, so as to be inclined at an angle of generally 45 degrees toward the associated signal wiring patterns. The dummy patternsformed in one of the adjacent wiring layers cross the dummy patternsformed in the other wiring layer at an angle of generally 90 degrees. This reduces fluctuations in wiring capacitance and equalizes fluctuations in the wiring capacitance to the maximum extent.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile