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:
Sep. 17, 2024
Filed:
Mar. 23, 2023
Applicant:
Proterial, Ltd., Tokyo, JP;
Inventors:
Takashi Nogawa, Tokyo, JP;
Shun Takano, Tokyo, JP;
Kenji Okishiro, Tokyo, JP;
Atsushi Okamoto, Tokyo, JP;
Assignee:
PROTERIAL, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/19 (2006.01); B23K 1/14 (2006.01); B32B 15/20 (2006.01); B23K 103/00 (2006.01); B23K 103/12 (2006.01);
U.S. Cl.
CPC ...
B23K 1/14 (2013.01); B23K 1/19 (2013.01); B23K 2103/12 (2018.08); B23K 2103/52 (2018.08); B32B 15/20 (2013.01);
Abstract
A copper-ceramic joint body having high joint strength is provided. The copper-ceramic joint body includes: a copper member made of Cu or Cu alloy; a ceramic member joined to the copper member and made of nitride of Si or Al; and a joint layer formed on joint surfaces of the copper member and the ceramic member, and containing Cu and Mg and further containing at least one type of active metal elements selected from a group of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Ca, Y, Ce, La, Sm, Yb, Nd, Gd and Er, and shear strength of the joint layer is equal to or higher than 10 MPa.