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:
Feb. 20, 2024

Filed:

Apr. 29, 2022
Applicant:

Pukyong National University Industry—university Cooperation Foundation, Busan, KR;

Inventor:

Hansang Kwon, Busan, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/20 (2006.01); C23C 4/11 (2016.01); C23C 4/134 (2016.01); B22F 3/24 (2006.01); C22C 38/10 (2006.01); B22F 9/04 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
B22F 3/20 (2013.01); B22F 3/24 (2013.01); B22F 9/04 (2013.01); C22C 38/105 (2013.01); C23C 4/11 (2016.01); C23C 4/134 (2016.01); H01L 21/6833 (2013.01); B22F 2003/242 (2013.01); B22F 2009/043 (2013.01); B22F 2301/052 (2013.01); B22F 2302/40 (2013.01);
Abstract

This application relates to a method of manufacturing an electrostatic chuck having a high heat dissipation property and high thermal shock resistance and being lightweight, and an electrostatic chuck manufactured by the method. In one aspect, the method includes preparing a composite powder by milling (i) aluminum or aluminum alloy powder and (ii) carbon-based nanomaterial powder through ball milling. The method may also include manufacturing a multilayer billet including a core layer and one or more shell layers surrounding the core layer, in which at least one of the core and shell layers contains the composite powder. The method may further include extruding the multilayer billet to form an electrode layer and forming a dielectric layer on the electrode layer.


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