Invention Application
- Patent Title: ELECTROSTATIC CHUCK DEVICE AND METHOD FOR MANUFACTURING ELECTROSTATIC CHUCK DEVICE
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Application No.: US16069141Application Date: 2017-01-12
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Publication No.: US20190019713A1Publication Date: 2019-01-17
- Inventor: Nobuhiro HIDAKA , Hironori KUGIMOTO , Mamoru KOSAKAI
- Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
- Priority: JP2016-003618 20160112; JP2016-067657 20160330
- International Application: PCT/JP2017/000776 WO 20170112
- Main IPC: H01L21/683
- IPC: H01L21/683 ; C04B35/117 ; C04B35/626 ; C04B35/645

Abstract:
An electrostatic chuck device includes: a base having one principal surface which is a placing surface on which a plate-shaped sample is placed, wherein the base is made from a sintered compact of ceramic particles, which include silicon carbide particles and aluminum oxide particles, as a forming material; and an electrostatic attraction electrode which is provided on a surface of the base on the side opposite to the placing surface of the base, or in the interior of the base, in which the volume resistivity value of the sintered compact is 0.5×1015 Ωcm or more in the entire range from 24° C. to 300° C., a graph which shows the relationship of the volume resistivity value of the sintered compact to a temperature at which the volume resistivity value of the sintered compact is measured has a maximum value in the range from 24° C. to 300° C., and the amount of metal impurities in the sintered compact other than aluminum and silicon in the sintered compact is 100 ppm or less.
Public/Granted literature
- US11107719B2 Electrostatic chuck device and method for manufacturing electrostatic chuck device Public/Granted day:2021-08-31
Information query
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