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. 19, 2019
Filed:
Mar. 13, 2017
Denso Corporation, Kariya, Aichi-pref., JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In an electronic device, an inner lead of a signal terminal includes a base member, and a film on a surface of the inner lead adjacent to a bonding surface. The film includes a metal thin film disposed on the surface of the base member and having a portion to which a bonding wire is connected, and an oxide film made of an oxide of the same metal as a metal being a main component of the metal thin film, and disposed in at least a part of a region of the metal thin film, excluding a connection region of a bonding wire. The oxide film includes an uneven oxide film having a surface with continuous asperities formed by irradiating the metal thin film with pulsed laser light. The uneven oxide film is disposed in at least a part of a front end region of the bonding surface.