发明名称 ELECTROSTATIC CHUCK
摘要 An electrostatic chuck including lower and upper regions of a ceramic base, an embedded electrode and a resin film formed on the surface of the base. Volume resistivity of the upper region is 1x10<SUP>9 </SUP>Omega.cm to 1x10<SUP>12 </SUP>Omega.cm, surface roughness of the surface of the upper region is 0.4 mum or less in centerline average roughness Ra, and the resin film is made of denatured fluorine resin. A thickness of the resin film is 1 mum or more, variations of the thickness of the resin film are ±30% or less, static friction and dynamic friction coefficients of a surface of the resin film is 0.2 or less, hardness of the resin film is 3H to F in a pencil method, and a contact angle of the resin film with water is 85° or more.
申请公布号 US2008062612(A1) 申请公布日期 2008.03.13
申请号 US20070850284 申请日期 2007.09.05
申请人 NGK INSULATORS, LTD. 发明人 MORIOKA IKUHISA;AIHARA YASUFUMI
分类号 H01L21/67;H01L21/683 主分类号 H01L21/67
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