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. 21, 2025

Filed:

Nov. 23, 2021
Applicant:

Semes Co., Ltd., Chungcheongnam-do, KR;

Inventors:

Chung Woo Lee, Gyeonggi-do, KR;

In Kyu Park, Gyeonggi-do, KR;

Yong Seok Jang, Chungcheongnam-do, KR;

Sung Youn Jeon, Chungcheongnam-do, KR;

Assignee:

SEMES CO., LTD., Cheonan-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
H05B 1/0233 (2013.01); H01J 37/32724 (2013.01); H01J 2237/334 (2013.01); H05B 2203/005 (2013.01);
Abstract

A support unit may include a plurality of heaters disposed in a matrix form in the support unit to heat a substrate, and a power supply unit for supplying power to the plurality of heaters, wherein a current applied to the plurality of heaters is controlled by switches connected to rows and columns of the matrix, respectively, and the switches connected to the rows of the matrix include first switches capable of controlling the current applied to the rows of the matrix and second switches connected in parallel with the first switches.


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