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 9875882 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 23, 2018

Filed:

Jul. 09, 2014
Applicant:

Tokyo Electron Limited, Tokyo, JP;

Inventors:

Toshihiko Iwao, Miyagi, JP;

Kazushi Kaneko, Miyagi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 16/00 (2006.01); C23F 1/00 (2006.01); H01L 21/306 (2006.01); H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32522 (2013.01); H01J 37/3222 (2013.01);
Abstract

Disclosed is a microwave plasma processing apparatus. The microwave plasma processing apparatus includes a coaxial waveguide installed in a through hole which is formed in the center side portion in the intermediate metal body to extend continuously through the cooling plate and the intermediate metal plate. The coaxial waveguide includes an inner conductor, an intermediate conductor and an outer conductor. Each of a space between the inner conductor installed in a hollow portion of the intermediate conductor and the intermediate conductor and a space between the intermediate conductor installed in a hollow portion of the outer conductor and the outer conductor transmits microwaves. A difference between an inner diameter of the outer conductor and an outer diameter of the intermediate conductor is larger than a difference between an outer diameter of the inner conductor and an inner diameter of the intermediate conductor.


Find Patent Forward Citations

Iwao, Toshihiko. (2018). Microwave plasma processing apparatus, slot antenna, and semiconductor device (U.S. Patent No. 9875882). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9875882

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