ELECTROSTATIC CHUCK DEVICE
    2.
    发明申请

    公开(公告)号:US20200343125A1

    公开(公告)日:2020-10-29

    申请号:US16958094

    申请日:2018-12-11

    Abstract: An electrostatic chuck device includes: an electrostatic chuck part having, as a main surface, a mounting surface on which a plate-shaped sample is mounted, and provided with an electrostatic attraction electrode; a base part which is disposed on a side opposite to the mounting surface with respect to the electrostatic chuck part and is configured to cool the electrostatic chuck part; a heater which is disposed in a layered manner between the electrostatic chuck part and the base part or in an interior of the electrostatic chuck part; and an adhesion layer which bonds and integrates the electrostatic chuck part and the base part together, in which the electrostatic chuck part is provided with a first through-hole, the base part is provided with a second through-hole communicating with the first through-hole, the adhesion layer is provided with a third through-hole communicating with the first through-hole and the second through-hole, a tubular insulator is fixed in the second through-hole, and an end of the insulator which is located on the electrostatic chuck part side is separated from the electrostatic chuck part with a space interposed therebetween.

    ELECTROSTATIC CHUCK DEVICE
    3.
    发明申请

    公开(公告)号:US20190019714A1

    公开(公告)日:2019-01-17

    申请号:US16070478

    申请日:2017-01-18

    Abstract: An electrostatic chuck device includes: an electrostatic chuck part which incorporates an internal electrode for electrostatic attraction and has a placing surface on which a plate-like sample is placed; a base part which cools the electrostatic chuck part; and an adhesion layer which bonds the electrostatic chuck part and the base part to integrate the parts together, in which a first through-hole is provided in the electrostatic chuck part, a second through-hole that communicates with the first through-hole is provided in the base part, a tubular insulator is fixed in the second through-hole, an annular sealing member is sandwiched between the electrostatic chuck part and a distal end surface of the insulator, wherein the distal end surface is located on the electrostatic chuck part side of the insulator, and a tubular insulating wall member is located at the inner side of the sealing member in the radial direction.

    ELECTROSTATIC CHUCK DEVICE AND ELECTROSTATIC CHUCK DEVICE MANUFACTURING METHOD

    公开(公告)号:US20210308812A1

    公开(公告)日:2021-10-07

    申请号:US17264705

    申请日:2019-08-02

    Abstract: An electrostatic chuck device includes: a mounting table provided with a mounting surface; a focus ring; and a cooling element, in which a holding portion of the mounting table is provided with an annular groove portion surrounding the mounting table, a through-hole that is open on a bottom surface of the groove portion, upper surfaces on both sides of the groove portion in a width direction in the holding portion form a holding surface that comes into contact with the focus ring and holds the focus ring, the holding surface is composed of an inner peripheral surface located further on an inner periphery side than the groove portion and an outer peripheral surface located further on an outer periphery side than the groove portion, and the holding surface satisfies the following conditions (i) and (ii), wherein (i) the holding surface has a shape in which in a cross section in a thickness direction, a straight line connecting a first point corresponding to an innermost periphery of the holding surface and a second point corresponding to an outermost periphery of the holding surface has a positive inclination or a negative inclination from the first point corresponding to the innermost periphery toward the second point corresponding to the outermost periphery, and satisfies 0≤| in the cross section of the holding surface in the thickness direction, a height of the first point corresponding to the innermost periphery−a height of the second point corresponding to the outermost periphery |≤10 μm, (ii) a leak area of the inner peripheral surface and a leak area of the outer peripheral surface are less than 0.7 mm2.

    ELECTROSTATIC CHUCK DEVICE
    5.
    发明申请

    公开(公告)号:US20180308737A1

    公开(公告)日:2018-10-25

    申请号:US15769672

    申请日:2016-10-21

    CPC classification number: H01L21/6833 H01L21/67069 H01L21/683 H02N13/00

    Abstract: An electrostatic chuck device comprising: a placing table having a placing surface on which a plate-shaped sample is placed, an electrostatic attraction electrode, which is located on a lower side of the placing table in such a manner that the electrode is located on a surface side opposite to the mounting surface of the placing table, a base part on which at least the placing table and the electrostatic attraction electrode are mounted, a focus ring which surrounds the placing table wherein the focus ring is a continuous ring or is divided into two or more portions, and a lift pin which is movable in an up-down direction and raises the entirety of or at least a part of the focus ring from the base part.

Patent Agency Ranking