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.

Date of Patent:
Oct. 18, 2016

Filed:

Dec. 11, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Keigo Nakazawa, Musashino, JP;

Makoto Ito, Sawa-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/00 (2006.01); H05K 3/34 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
H05K 3/3494 (2013.01); H05K 1/0206 (2013.01); H05K 1/0209 (2013.01); H05K 3/3452 (2013.01); H01L 2924/0002 (2013.01); H05K 3/3421 (2013.01); H05K 2201/099 (2013.01); H05K 2201/09572 (2013.01); H05K 2201/09618 (2013.01); H05K 2201/09781 (2013.01); H05K 2201/10969 (2013.01); H05K 2203/042 (2013.01); H05K 2203/0465 (2013.01); Y10T 29/49144 (2015.01);
Abstract

A printed wiring board has a heat transfer pattern facing a heat sink of an electronic component, on a first surface layer on which the electronic component having the heat sink is mounted. The printed wiring board has a through hole conductor formed in a through hole penetrating the printed wiring board corresponding to the heat transfer pattern, and thermally connected to the heat transfer pattern. The heat transfer pattern has a plurality of connecting lands exposed so as to be connectable to the heat sink of the electronic component by solder while being divided by a solder resist. The plurality of the connecting lands include lands adjacent to the through holes, and lands not adjacent to the through holes. The heat dissipation of the electronic component is enhanced while enhancing the connectability of the heat transfer pattern with the heat sink of the electronic component, at being mounted.


Find Patent Forward Citations

Nakazawa, Keigo. (2016). Printed wiring board, printed circuit board, and method for manufacturing printed circuit board (U.S. Patent No. 9474166). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9474166

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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