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:
Apr. 20, 2004
Filed:
Jan. 31, 2003
Applicant:
Inventors:
Juan Jose Gonzalez, Fort Collins, CO (US);
Andrew Shabalin, Fort Collins, CO (US);
Fernando Gustavo Tomasel, Fort Collins, CO (US);
Assignee:
Advanced Energy Industries, Inc., Fort Collins, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 7/24 ;
U.S. Cl.
CPC ...
H01J 7/24 ;
Abstract
According to one embodiment, an apparatus is described. The apparatus includes a metal vacuum chamber with two or more dielectric breaks. It also includes a number of excitation transformers located so as to distribute the total induced voltage in the chamber among the dielectric breaks. Distributing the total induced voltage among the breaks results in lower wall damage and, consequently, longer lifetimes for the plasma chambers.