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:
Oct. 03, 2017
Filed:
Dec. 01, 2016
Shinko Electric Industries Co., Ltd., Nagano-Shi, Nagano-Ken, JP;
Hiroshi Shimizu, Nagano, JP;
Abstract
A wiring substrate includes a wiring layer located on an insulation layer, and a protective insulation layer covering the wiring layer and the insulation layer. The protective insulation layer includes an opening that partially exposes the wiring layer. The wiring layer includes first and second metal layers. The first metal layer is located at a position corresponding to the opening and has a larger contour than the opening in a plan view. The second metal layer includes a pad portion, which covers upper and side surfaces of the first metal layer, and a wiring portion. The opening is extended in the protective insulation layer from an upper surface of the protective insulation layer to the upper surface of the pad portion by a distance that is shorter than that from the upper surface of the protective insulation layer to an upper surface of the wiring portion.