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:
May. 01, 2018
Filed:
Apr. 18, 2017
Applicant:
Shinko Electric Industries Co., Ltd., Nagano, JP;
Inventors:
Assignee:
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); H05K 1/03 (2006.01); H01L 23/498 (2006.01); H01L 21/48 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0213 (2013.01); H01L 21/4857 (2013.01); H01L 23/49822 (2013.01); H01L 23/49838 (2013.01); H01L 23/49894 (2013.01); H05K 1/0353 (2013.01); H01L 21/486 (2013.01); H01L 23/49827 (2013.01);
Abstract
A wiring substrate includes an insulating layer including a projection and a wiring layer on the projection. The wiring layer includes a first metal layer on an end face of the projection and a second metal layer on the first metal layer. The width of the end face of the projection is different from at least one of the width of the first metal layer and the width of the second metal layer. An inner wall surface and a bottom surface of a depression around the projection are roughened surfaces.