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:
Jun. 29, 2021

Filed:

Aug. 02, 2016
Applicant:

Heraeus Deutschland Gmbh & Co. KG, Hanau, DE;

Inventors:

Wolfgang Schmitt, Rodgua, DE;

Thomas Krebs, Mombris, DE;

Michael Schäfer, Kunzell, DE;

Susanne K. Duch, Bruchköbel, DE;

Jens Nachreiner, Gelnhausen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 35/02 (2006.01); B22F 1/00 (2006.01); B22F 7/06 (2006.01); B23K 35/365 (2006.01); H01L 23/00 (2006.01); B22F 1/02 (2006.01); B23K 35/34 (2006.01); B23K 35/36 (2006.01); B23K 35/30 (2006.01); B23K 101/36 (2006.01);
U.S. Cl.
CPC ...
B23K 35/025 (2013.01); B22F 1/0003 (2013.01); B22F 1/0055 (2013.01); B22F 1/0062 (2013.01); B22F 1/0074 (2013.01); B22F 1/025 (2013.01); B22F 7/064 (2013.01); B23K 35/3006 (2013.01); B23K 35/34 (2013.01); B23K 35/365 (2013.01); B23K 35/3618 (2013.01); H01L 24/29 (2013.01); H01L 24/83 (2013.01); B22F 2301/255 (2013.01); B23K 2101/36 (2018.08); H01L 2224/2928 (2013.01); H01L 2224/29239 (2013.01); H01L 2224/29247 (2013.01); H01L 2224/29255 (2013.01); H01L 2224/8384 (2013.01);
Abstract

The invention relates to a metal paste, containing (A) 75 to 90% by weight of copper and/or silver particles that are provided with a coating containing at least one organic compound, (B) 5 to 20% by weight of an organic solvent, and (C) 2 to 20% by weight of at least one type of metal particles different from the particles of (A) and having an average particle size (d50) in the range of 0.2 to 10 μm. The metal particles of component (C) are selected from the group consisting of molybdenum particles and nickel core-silver shell particles with a silver content of 10 to 90% by weight.


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