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. 14, 2015
Filed:
Sep. 16, 2013
Shinko Electric Industries Co., Ltd., Nagano-shi, Nagano, JP;
Kazuhiro Kobayashi, Nagano, JP;
Kotaro Kodani, Nagano, JP;
Junichi Nakamura, Nagano, JP;
Kentaro Kaneko, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Abstract
A method of manufacturing a wiring substrate, includes, forming an etching stop layer and a first wiring layer on a supporting member, forming a first insulating layer on the first wiring layer, forming a via hole reaching the first wiring layer, and forming the wiring layers of an n-layer and the insulating layers of an n-layer, removing the supporting member and the etching stop layer, thereby forming a build-up intermediate body, forming a second insulating layer on the wiring layer of an n-th layer, and forming a third insulating layer on first wiring layer, forming a via hole reaching the wiring layer of the n-th layer, and forming a via hole reaching the first wiring layer, forming a roughened face to the third insulating layer, and forming a second wiring layer connected to the wiring layer, and forming a third wiring layer connected to the first wiring layer.