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:
May. 30, 2023
Filed:
Nov. 01, 2019
Applicant:
Tokyo Electron Limited, Tokyo, JP;
Inventors:
Assignee:
TOKYO ELECTRON LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32715 (2013.01); H01J 37/32642 (2013.01); H01J 2237/2007 (2013.01);
Abstract
A placing table includes an edge ring disposed to surround a substrate, the edge ring having a first recess portion at a lower portion thereof; an electrostatic chuck having a first placing surface on which the substrate is placed, a second placing surface on which the edge ring is placed, and an electrode embedded therein to face the second placing surface; an annular member disposed to surround the electrostatic chuck, the annular member having a second recess portion; and an elastic member disposed in a space surrounded by the first recess portion, the electrostatic chuck and the second recess portion.