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:
Mar. 03, 2015

Filed:

Mar. 23, 2012
Applicants:

Shunpei Kondo, Fukuoka-ken, JP;

Hiroki Matsui, Fukuoka-ken, JP;

Inventors:

Shunpei Kondo, Fukuoka-ken, JP;

Hiroki Matsui, Fukuoka-ken, JP;

Assignee:

Toto Ltd., Fukuoka, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/67 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
H01L 21/6833 (2013.01);
Abstract

According to one embodiment, an electrostatic chuck includes: a ceramic dielectric substrate, an electrode, and a conductive member. The ceramic dielectric substrate has a first major surface on which a material to be adsorbed is to be mounted and a second major surface on a side opposite the first major surface. The electrode is interposed between the first major surface and the second major surface of the ceramic dielectric substrate. The conductive member is provided in a recess formed in the second major surface of the ceramic dielectric substrate. A tip end of the recess has a curved surface.


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