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The electrostatic chuck member 发明授权

2023-01-16 1730 278K 0

专利信息

申请日期 2025-08-14 申请号 JP2012016943
公开(公告)号 JP6015012B2 公开(公告)日 2016-10-26
公开国别 JP 申请人省市代码 全国
申请人 住友大阪セメント株式会社
简介 There is provided an electrostatic chuck member made of a complex oxide sintered body obtained by substituting some of yttrium in yttrium aluminum oxide with a rare earth element (RE) excluding yttrium, in which a ratio [NRE/(NY+NRE)] of the number of atoms of the rare earth element excluding yttrium (NRE) to the sum (NY+NRE) of the number of yttrium atoms (NY) and the number of the atoms of the rare earth element excluding yttrium (NRE) is in a range of 0.01 to less than 0.5, and a volume resistance of the complex oxide sintered compact is in a range of 1×1010 Ω·cm to less than 1×1015 Ω·cm.


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