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:
Aug. 01, 2000
Filed:
Nov. 19, 1997
Applicant:
Inventors:
Johann Karner, Feldkirch, AT;
Wolfgang Schoeb, Gams, CH;
Assignee:
Balzers Hochvakuum AG, , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
4272498 ; 42724913 ; 427309 ; 427560 ; 216100 ; 51307 ; 407119 ;
Abstract
A method for coating a sintered metal carbide substrate with a diamond film is disclosed, which comprises subjecting the substrate to a selective tungsten carbide etching step; subjecting the substrate to a selective Co etching step; and subsequently coating a desired section of the substrate with the diamond film, and where after completion of the selective tungsten carbide etching step and prior to diamond coating the substrate is nucleated with diamond powder through friction contact.