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    • 3. 发明申请
    • ELECTROSTATIC CHUCK
    • 静电卡
    • US20130026720A1
    • 2013-01-31
    • US13635757
    • 2011-03-23
    • Hiroaki HoriShunpei KondoYuki AnaiIkuo ItakuraTakeshi UchimuraKazuki Anada
    • Hiroaki HoriShunpei KondoYuki AnaiIkuo ItakuraTakeshi UchimuraKazuki Anada
    • H01L21/683
    • H01L21/6833Y10T279/23
    • An electrostatic chuck comprises: a ceramic plate provided with recesses on a major surface and provided with an electrode in an inner part of the ceramic plate; a temperature regulating plate bonded to the major surface of the ceramic plate; a first bonding agent provided between the ceramic plate and the temperature regulating plate; and a heater provided in the each of the recesses of the ceramic plate. The first bonding agent has a first major agent including an organic material, a first amorphous filler including an inorganic material, and a first spherical filler including an inorganic material. The first amorphous filler and the first spherical filler are dispersion-compounded into the first major agent. The first major agent, the first amorphous filler, and the first spherical filler are made of an electrically insulating material. An average diameter of the first spherical filler is greater than a maximum value of a minor axis of the first amorphous filler. A thickness of the first bonding agent is greater than or equal to the average diameter of the first spherical filler. A width of the each of the recesses is greater than a width of the heater, and a depth of the each of the recesses is greater than a thickness of the heater. The heater is adhered within the each of the recesses by a second bonding agent. A first distance between a major surface of the heater on the side of the temperature regulating plate and a major surface of the temperature regulating plate is greater than a second distance between the major surface between the recesses of the ceramic plate and the major surface of the temperature regulating plate.
    • 静电卡盘包括:陶瓷板,其在主表面上设置有凹部,并在陶瓷板的内部设置有电极; 温度调节板结合到陶瓷板的主表面; 设置在陶瓷板和温度调节板之间的第一粘合剂; 以及设置在陶瓷板的每个凹部中的加热器。 第一粘结剂具有包括有机材料的第一主剂,包含无机材料的第一无定形填料和包含无机材料的第一球形填料。 将第一无定形填料和第一球形填料分散混合到第一主剂中。 第一主剂,第一无定形填料和第一球形填料由电绝缘材料制成。 第一球形填料的平均直径大于第一无定形填料的短轴的最大值。 第一粘合剂的厚度大于或等于第一球形填料的平均直径。 每个凹部的宽度大于加热器的宽度,并且每个凹部的深度大于加热器的厚度。 加热器通过第二粘合剂粘附在每个凹部内。 加热器在温度调节板一侧的主表面和温度调节板的主表面之间的第一距离大于陶瓷板的凹部与主表面之间的主表面之间的第二距离 调温板。