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. 27, 2019
Filed:
Jul. 16, 2018
Applicant:
Renesas Electronics Corporation, Minato-ku, Tokyo, JP;
Inventor:
Hiroki Shibuya, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/528 (2006.01); H01L 23/498 (2006.01); H01L 23/522 (2006.01); H01L 23/66 (2006.01); H05K 1/02 (2006.01); H05K 3/28 (2006.01); H05K 1/14 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H01L 23/528 (2013.01); H01L 23/49838 (2013.01); H01L 23/5226 (2013.01); H01L 23/66 (2013.01); H05K 1/0224 (2013.01); H01L 2223/6616 (2013.01); H01L 2223/6677 (2013.01); H05K 3/284 (2013.01); H05K 2201/09618 (2013.01); H05K 2201/10098 (2013.01);
Abstract
This invention provides an electronic device with improved reliability. The electronic device has a wiring board with a back-surface ground pattern formed at the back surface of the board. The back-surface ground pattern is provided with a notch overlapping a region of an upper wiring layer at which a board member is exposed and which is encircled by a wide pattern, the notch permitting the release of water vapor from the region.