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.

Date of Patent:
Jul. 14, 2026

Filed:

Jan. 31, 2022
Applicants:

Nippon Micrometal Corporation, Saitama, JP;

Nippon Steel Chemical & Material Co., Ltd., Tokyo, JP;

Inventors:

Yuya Suto, Tokyo, JP;

Tomohiro Uno, Tokyo, JP;

Tetsuya Oyamada, Tokyo, JP;

Daizo Oda, Saitama, JP;

Motoki Eto, Saitama, JP;

Yuto Kurihara, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 20/00 (2006.01); B23K 35/00 (2006.01); B23K 35/28 (2006.01); H10W 72/00 (2026.01); H10W 72/50 (2026.01);
U.S. Cl.
CPC ...
H10W 72/50 (2026.01); B23K 20/004 (2013.01); B23K 35/286 (2013.01); H10W 72/015 (2026.01); H10W 72/01565 (2026.01); H10W 72/5524 (2026.01);
Abstract

To provide an Al bonding wire exhibiting a favorable high-temperature and high-humidity service life in a high-temperature and high-humidity environment required for next-generation vehicle-mounted power devices. The Al bonding wire for semiconductor devices containing equal to or larger than 3 mass ppm and equal to or smaller than 500 mass ppm of one or more of Pd and Pt in total, in which, as a result of measuring a crystal orientation on a cross section parallel to a wire axis direction including a wire axis of the bonding wire, an orientation ratio of a <100> crystal orientation angled at 15 degrees or less to the wire axis direction is equal to or higher than 30% and equal to or lower than 90%.


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