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:
Jul. 07, 2020
Filed:
May. 28, 2019
Shinko Electric Industries Co., Ltd., Nagano, JP;
Junji Sato, Nagano, JP;
Katsuya Fukase, Nagano, JP;
SHINKO ELECTRIC INDUSTRIES CO., LTD., Nagano, JP;
Abstract
A wiring substrate includes: a wiring member that includes a first surface and a second surface, the wiring member including a plurality of wiring layers between the first surface and the second surface; and a carrier that is bonded to the first surface via an adhesive and that includes a plurality of layers whose coefficients of thermal expansion are different from each other. A pitch of wires included in the plurality of wiring layers is narrower on the second surface side than on the first surface side. When being heated, a direction in which the wiring member tends to warp and a direction in which the carrier tends to warp are opposite.