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:
Mar. 07, 2023
Filed:
Jun. 21, 2019
Kyocera Corporation, Kyoto, JP;
Hidetoshi Yugawa, Kyoto, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A wiring board of the present disclosure comprises an insulating layer, a first conductor layer located on the surface of the insulating layer and containing any one of nickel and chromium, a metal belonging to group of the periodic table; or a metal belonging to group of the periodic table, a second conductor layer located inside the outer circumferential edge on the first conductor layer and containing copper, a third conductor layer located on the surface of the insulating layer in a state of covering the first conductor layer and the second conductor layer and containing nickel, and a fourth conductor layer located in a state of covering the third conductor layer and containing gold. The third conductor layer has an overhanging part extending outward from the outer circumferential edge of the first conductor layer, and the fourth conductor layer is located between the overhanging part and the insulating layer.