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:
Oct. 17, 2017
Filed:
May. 29, 2012
Applicant:
Heiko Knoll, Marburg, DE;
Inventor:
Heiko Knoll, Marburg, DE;
Assignee:
IXYS Semiconductor GmbH, Lampertheim, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/00 (2006.01); C04B 37/02 (2006.01); H01L 21/48 (2006.01); H01L 23/14 (2006.01); H01L 23/373 (2006.01);
U.S. Cl.
CPC ...
C04B 37/021 (2013.01); C04B 37/026 (2013.01); H01L 21/4846 (2013.01); H01L 23/147 (2013.01); H01L 23/3735 (2013.01); C04B 2235/656 (2013.01); C04B 2235/665 (2013.01); C04B 2235/96 (2013.01); C04B 2237/121 (2013.01); C04B 2237/125 (2013.01); C04B 2237/126 (2013.01); C04B 2237/128 (2013.01); C04B 2237/343 (2013.01); C04B 2237/366 (2013.01); C04B 2237/368 (2013.01); C04B 2237/402 (2013.01); C04B 2237/403 (2013.01); C04B 2237/407 (2013.01); C04B 2237/704 (2013.01); C04B 2237/706 (2013.01); C04B 2237/708 (2013.01); C04B 2237/72 (2013.01); C04B 2237/86 (2013.01); H01L 2924/0002 (2013.01); H01L 2924/09701 (2013.01);
Abstract
A method of joining a metal-ceramic substrate having metallization on at least one side to a metal body by using metal alloy is disclosed. The metal body has a thickness of less than 1.0 mm and the metal alloy contains aluminum and has a liquidus temperature of greater than 450° C. The resulting metal-ceramic module provides a strong bond between the metal body and the ceramic substrate. The resulting module is useful as a circuit carrier in electronic appliances, with the metal body preferably functioning as a cooling body.