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.:

US 10920322 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 16, 2021

Filed:

Aug. 21, 2017
Applicant:

Atotech Deutschland Gmbh, Berlin, DE;

Inventor:

Andreas Walter, Berlin, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 18/44 (2006.01); C23C 18/16 (2006.01); H01L 33/00 (2010.01); H01L 33/32 (2010.01);
U.S. Cl.
CPC ...
C23C 18/44 (2013.01); C23C 18/1642 (2013.01); H01L 33/007 (2013.01); H01L 33/32 (2013.01); H01L 33/325 (2013.01);
Abstract

The present invention relates to a method for directly depositing palladium onto a non-activated surface of a gallium nitride semiconductor, the use of an acidic palladium plating bath (as defined below) for directly depositing metallic palladium or a palladium alloy onto a non-activated surface of a doped or non-doped gallium nitride semiconductor, and a palladium or palladium alloy coated, doped or non-doped gallium nitride semiconductor.


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