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:
Jun. 14, 2022
Filed:
Oct. 15, 2020
Denso Corporation, Kariya, JP;
Yasushi Okura, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In a semiconductor device, a first protection film covers an end portion of a first metal layer disposed on a semiconductor substrate, and has a first opening above the first metal layer. A second metal layer is disposed on the first metal layer in the first opening. An oxidation inhibition layer is disposed on the second metal layer in the first opening. A second protection film has a second opening and covers an end portion of the oxidation inhibition layer and the first protection film. The second protection film has an opening peripheral portion on a periphery of the second opening, and covers the end portion of the oxidation inhibition layer. An adhesion portion adheres to a portion of a lower surface of the opening peripheral portion. The adhesion portion has a higher adhesive strength with the second protection film than the oxidation inhibition layer.