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:
Nov. 14, 2023
Filed:
Sep. 24, 2019
Applicant:
Namics Corporation, Niigata, JP;
Inventors:
Masashi Kajita, Niigata, JP;
Masahiro Kitamura, Niigata, JP;
Takayuki Higuchi, Niigata, JP;
Noritsuka Mizumura, Niigata, JP;
Assignee:
NAMICS CORPORATION, Niigata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); B22F 1/107 (2022.01); B22F 1/054 (2022.01); B22F 1/052 (2022.01);
U.S. Cl.
CPC ...
H01L 23/562 (2013.01); B22F 1/052 (2022.01); B22F 1/054 (2022.01); B22F 1/056 (2022.01); B22F 1/107 (2022.01); H01L 24/29 (2013.01); H01L 2224/29247 (2013.01); H01L 2924/15747 (2013.01); H01L 2924/3512 (2013.01);
Abstract
A conductive paste contains (A) copper fine particles having an average particle diameter of 50 nm to 400 nm and a crystallite diameter of 20 nm to 50 nm, (B) copper particles having an average particle diameter of 0.8 μm to 5 μm and a ratio of a crystallite diameter to the crystallite diameter of the copper fine particles (A) of 1.0 to 2.0, and (C) a solvent.