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. 28, 2024
Filed:
Jan. 11, 2022
Shinko Electric Industries Co., Ltd., Nagano, JP;
Hikaru Tanaka, Nagano, JP;
Takashi Kasuga, Nagano, JP;
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano, JP;
Abstract
A wiring substrate includes: a wiring layer; an insulating layer that is laminated on the wiring layer; an opening portion that passes through the insulating layer to the wiring layer; and an electric conductor film that is formed at the opening portion of the insulating layer. A surface of the insulating layer includes a smoothed portion that is not covered by the electric conductor film, and a roughened portion that includes an inner wall surface of the opening portion covered by the electric conductor film and that have surface roughness that is greater than surface roughness of the smoothed portion.