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, 2016
Filed:
Mar. 28, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a printed circuit board capable of increasing an inductance value of a power pattern and a ground pattern while keeping a low electric resistance value of the power pattern and the ground pattern. The printed circuit board includes a printed wiring board including: a power layer having a power pattern formed therein; and a ground layer having a ground pattern formed therein. On the printed wiring board, an LSI as a semiconductor device and an LSI as a power supply member are mounted. The ground pattern has a first ground region that overlaps the power pattern as viewed from the direction perpendicular to the surface of the printed wiring board. In the first ground region, at least one defect portion is formed. In the first ground region, the defect portion forms a region that is narrower than the power pattern.