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. 28, 1990
Filed:
Feb. 17, 1989
Applicant:
Inventors:
Michael D Temple, Santa Rosa, CA (US);
Richard I Seddon, Santa Rosa, CA (US);
Assignee:
Optical Coating Laboratory, Inc., Santa Rosa, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
118723 ; 118726 ; 118730 ; 427 38 ; 427 42 ; 427 47 ; 4272551 ; 4272552 ; 4272557 ;
Abstract
A vacuum evaporation plasma plating system is disclosed in which the plasma and the crucible containing the evaporant material are part of an electrical circuit which effects vacuum evaporation operation. The crucible includes a constant anode cap which is heated by the plasma and thus maintains a low resistance circuit path to the crucible and also provides a uniform source of evaporant.