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.

Date of Patent:
Jan. 16, 1990

Filed:

Mar. 29, 1988
Applicant:
Inventors:

Joachim Doehler, Union Lake, MI (US);

Jeffrey M Krisko, Highland, MI (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
118723 ; 156345 ; 315 39 ; 427 38 ; 427 451 ;
Abstract

Microwave energy apparatus adapted to sustain a substantially uniform plasma over a relatively large area. In the broadest form of the invention, an isolating window is disposed about the microwave applicator, said isolating window formed from a material through which the microwave energy can be transmitted from the applicator into a plasma reaction vessel and said isolating window configured in a shape which is substantially optimized to withstand compressive forces. In this manner, the thickness of the isolating window may be minimized to provide for rapid thermal cooling, wherby high power densities may be achieved without cracking the window.


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