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:
Feb. 05, 2019
Filed:
Oct. 16, 2014
Tokyo Electron Limited, Tokyo, JP;
Katsuyuki Koizumi, Miyagi, JP;
Shigeru Senzaki, Miyagi, JP;
Tomoyuki Takahashi, Miyagi, JP;
Dai Kitagawa, Miyagi, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
There is provided a temperature control mechanism comprising: a plurality of combinations of a heater and a thyristor, wherein at least one combination of the heater and the thyristor is provided on a zone-by-zone basis, and wherein an area of an electrostatic chuck for mounting a substrate is divided into a plurality of zones; a power supply configured to supply current to heaters of the plurality of combinations respectively through the thyristors of the plurality of combinations; a pair of filters disposed at a power supply line for supplying electric power from the power supply to the heaters and configured to eliminate high frequency power applied to the power supply.