Patents by Inventor Mamoru Kosakai

Mamoru Kosakai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11107719
    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 ?cm 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.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 31, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Nobuhiro Hidaka, Hironori Kugimoto, Mamoru Kosakai
  • Patent number: 10923381
    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.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: February 16, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru Kosakai, Yukio Miura, Kazunori Ishimura, Keisuke Maeda, Hitoshi Kouno, Yuuki Kinpara, Shinichi Maeta, Tomomi Ito
  • Publication number: 20210013081
    Abstract: A ceramic substrate made of a dielectric material including silicon carbide particles, which is used as a forming material, in which the number of the silicon carbide particles per unit area on the surface of the substrate is smaller than the number of the silicon carbide particles per unit area in a cross section of the substrate.
    Type: Application
    Filed: March 28, 2019
    Publication date: January 14, 2021
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru KOSAKAI, Nobuhiro HIDAKA, Naoto KIMURA, Hironori KUGIMOTO
  • Publication number: 20200273736
    Abstract: An object of the present invention is to reduce non-uniformity of etching in a plane of a wafer. An electrostatic chuck device includes: an electrostatic chuck part having a sample mounting surface on which a sample is mounted and having a first electrode for electrostatic attraction; a cooling base part placed on a side opposite to the sample mounting surface with respect to the electrostatic chuck part to cool the electrostatic chuck part; and an adhesive layer that bonds the electrostatic chuck part and the cooling base part together, in which the cooling base part has a function of a second electrode that is an RF electrode, a third electrode for RF electrode or LC adjustment is provided between the electrostatic chuck part and the cooling base part, and the third electrode is bonded to the electrostatic chuck part and the cooling base part and insulated from the cooling base part.
    Type: Application
    Filed: September 12, 2018
    Publication date: August 27, 2020
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru KOSAKAI, Masaki OZAKI, Keisuke MAEDA
  • Publication number: 20200266088
    Abstract: An electrostatic chuck device includes: an electrostatic chuck part having a sample placing surface on which a sample is placed and having a first electrode for electrostatic attraction; a cooling base part placed on a side opposite to the sample placing surface with respect to the electrostatic chuck part to cool the electrostatic chuck part; and an adhesive layer that bonds the electrostatic chuck part and the cooling base part together, in which the electrostatic chuck part has a recess and protrusion on the adhesive layer side, and a sheet resistance value of the first electrode is higher than 1.0 ?/? and lower than 1.0×1010 ?/?.
    Type: Application
    Filed: September 26, 2018
    Publication date: August 20, 2020
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru KOSAKAI, Masaki OZAKI, Keisuke MAEDA
  • Patent number: 10622239
    Abstract: An electrostatic chuck device includes: a placing plate having a placement surface on which a plate-like sample is placed on one side thereof; an electrostatic attraction electrode provided on the other side of the first ceramic plate; and a first organic insulating layer provided between the first ceramic plate and the electrostatic attraction electrode. The electrostatic chuck device further has a supporting plate provided between the first organic insulating layer and the electrostatic attraction electrode.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 14, 2020
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru Kosakai, Shinichi Maeta, Keisuke Maeda
  • Patent number: 10502639
    Abstract: A plate-shaped body for temperature measurement which, simply by being mounted on a mounting surface of an electrostatic chuck apparatus and without using a semiconductor wafer itself, is able to easily optimize the in-plane temperature distribution of the mounting surface of the electrostatic chuck apparatus, the temperature rising characteristics, and the cooling characteristics during decreases in temperature. In such plate-shaped body for temperature measurement (1), an insulating adhesive (3) is bonded to the entirety of a surface (2a) of a wafer (2), a heater element (4) is provided on the insulating adhesive (3), a temperature measurement region (5) is provided used to measure the temperature of the surface (2a) of the wafer (2) in a region excluding the heater element (4) on the surface (3a) of the insulating adhesive (3), and the heater element (4) and the temperature measurement region (5) are coated with an insulating film (6).
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: December 10, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru Kosakai, Kazunori Ishimura, Takeshi Watanabe, Hitoshi Kouno, Ryuuji Hayahara
  • Patent number: 10475687
    Abstract: An aspect of the present invention has an object to provide an electrostatic chuck device which is provided with a plurality of divided heaters and in which uniform temperature control of a zone which is heated by each heater can be performed with a simple configuration.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: November 12, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru Kosakai, Yukio Miura
  • Patent number: 10475688
    Abstract: An electrostatic chuck part of an electrostatic chuck device has an electrostatic chuck part inner peripheral surface surrounding an opening of a chuck part through-hole, and an electrostatic chuck part outer peripheral surface surrounding the electrostatic chuck part inner peripheral surface. An insulator has an insulator main body in which an insulator through-hole having an opening on the electrostatic chuck part side is formed, an insulator inner end face, and an insulator outer end face which faces the electrostatic chuck part outer peripheral surface. The insulator inner end face and the electrostatic chuck part inner peripheral surface are in contact with each other, or an adhesion layer or a plasma-resistant adhesive layer extends in a gap between the insulator inner end face and the electrostatic chuck part inner peripheral surface. The plasma-resistant adhesive layer is formed between the electrostatic chuck part outer peripheral surface and the insulator outer end face.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 12, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kazunori Ishimura, Kazuto Ando, Kentaro Takahashi, Yuhki Kinpara, Shinichi Maeta, Mamoru Kosakai
  • Patent number: 10256131
    Abstract: An electrostatic chuck device includes an electrostatic chuck member and a temperature controlling base member. The electrostatic chuck member has a ceramic plate having a mounting surface on which a plate-shaped sample is mounted, and an electrode for electrostatic attraction provided on the other surface on the side opposite the mounting surface of the ceramic plate. The temperature controlling base member is disposed on the surface on the side opposite the ceramic plate side of the electrode for electrostatic attraction and cools the electrostatic chuck member. The ceramic plate has a dike portion which extends to the temperature controlling base member side and surrounds the electrode for electrostatic attraction, the temperature controlling base member has a groove portion accommodating an end part of the dike portion, and a space between the groove portion and the dike portion is filled with a filling part formed of a resin material.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: April 9, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Mamoru Kosakai, Shinichi Maeta, Keisuke Maeda
  • Publication number: 20190088517
    Abstract: An aspect of the present invention has an object to provide an electrostatic chuck device which is provided with a plurality of divided heaters and in which uniform temperature control of a zone which is heated by each heater can be performed with a simple configuration.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 21, 2019
    Inventors: Mamoru KOSAKAI, Yukio MIURA
  • Publication number: 20190019714
    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.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 17, 2019
    Inventors: Mamoru KOSAKAI, Yukio MIURA, Kazunori ISHIMURA, Keisuke MAEDA, Hitoshi KOUNO, Yuuki KINPARA, Shinichi MAETA, Tomomi ITO
  • Publication number: 20190019713
    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 ?cm 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.
    Type: Application
    Filed: January 12, 2017
    Publication date: January 17, 2019
    Inventors: Nobuhiro HIDAKA, Hironori KUGIMOTO, Mamoru KOSAKAI
  • Patent number: 10153192
    Abstract: An electrostatic chuck device according to the present invention includes: an electrostatic chuck portion having a placement surface on which a plate-like sample is placed; a base portion for temperature adjustment disposed in opposition to the side of the electrostatic chuck portion on the opposite side from the placement surface; a bonding portion for bonding the electrostatic chuck portion and the base portion for temperature adjustment together; and an annular focus ring surrounding the periphery of the placement surface, in which the volume of a space surrounded by the electrostatic chuck portion, the focus ring, the bonding portion, and a dam portion of the base portion for temperature adjustment is greater than the amount of volume expansion of the bonding portion at the working temperature.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: December 11, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Shinichi Maeta, Yukio Miura, Mamoru Kosakai, Hitoshi Kouno
  • Publication number: 20180269097
    Abstract: An electrostatic chuck device according to the present invention includes: an electrostatic chuck portion having a placement surface on which a plate-like sample is placed; a base portion for temperature adjustment disposed in opposition to the side of the electrostatic chuck portion on the opposite side from the placement surface; a bonding portion for bonding the electrostatic chuck portion and the base portion for temperature adjustment together; and an annular focus ring surrounding the periphery of the placement surface, in which the volume of a space surrounded by the electrostatic chuck portion, the focus ring, the bonding portion, and a dam portion of the base portion for temperature adjustment is greater than the amount of volume expansion of the bonding portion at the working temperature.
    Type: Application
    Filed: September 13, 2016
    Publication date: September 20, 2018
    Inventors: Shinichi MAETA, Yukio MIURA, Mamoru KOSAKAI, Hitoshi KOUNO
  • Patent number: 10079167
    Abstract: Provided is an electrostatic chucking device having high heat resistance. The electrostatic chucking device of the present invention includes a first ceramic plate which includes a first surface on which a substrate is able to be placed and a second surface on the opposite side thereof, and in which an internal electrode for electrostatic adsorption is embedded; a heating member fixed to the second surface; a second ceramic plate adhered to the first ceramic plate and the heating member via a first adhesive layer; and a cooling base portion adhered to the second ceramic plate via a second adhesive layer and cools at least the second ceramic plate. The first adhesive layer has a higher heat resistance than the second adhesive layer. The second adhesive layer has a smaller Young's modulus than the first adhesive layer.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: September 18, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Mamoru Kosakai
  • Publication number: 20180254211
    Abstract: An electrostatic chuck device includes an electrostatic chuck member and a temperature controlling base member. The electrostatic chuck member has a ceramic plate having a mounting surface on which a plate-shaped sample is mounted, and an electrode for electrostatic attraction provided on the other surface on the side opposite the mounting surface of the ceramic plate. The temperature controlling base member is disposed on the surface on the side opposite the ceramic plate side of the electrode for electrostatic attraction and cools the electrostatic chuck member. The ceramic plate has a dike portion which extends to the temperature controlling base member side and surrounds the electrode for electrostatic attraction, the temperature controlling base member has a groove portion accommodating an end part of the dike portion, and a space between the groove portion and the dike portion is filled with a filling part formed of a resin material.
    Type: Application
    Filed: August 9, 2016
    Publication date: September 6, 2018
    Inventors: Mamoru KOSAKAI, Shinichi MAETA, Keisuke MAEDA
  • Publication number: 20180108555
    Abstract: An electrostatic chuck device includes: a placing plate having a placement surface on which a plate-like sample is placed on one side thereof; an electrostatic attraction electrode provided on the other side of the first ceramic plate; and a first organic insulating layer provided between the first ceramic plate and the electrostatic attraction electrode. The electrostatic chuck device further has a supporting plate provided between the first organic insulating layer and the electrostatic attraction electrode.
    Type: Application
    Filed: February 25, 2016
    Publication date: April 19, 2018
    Inventors: Mamoru KOSAKAI, Shinichi MAETA, Keisuke MAEDA
  • Publication number: 20180025933
    Abstract: An electrostatic chuck part of an electrostatic chuck device has an electrostatic chuck part inner peripheral surface surrounding an opening of a chuck part through-hole, and an electrostatic chuck part outer peripheral surface surrounding the electrostatic chuck part inner peripheral surface. An insulator has an insulator main body in which an insulator through-hole having an opening on the electrostatic chuck part side is formed, an insulator inner end face, and an insulator outer end face which faces the electrostatic chuck part outer peripheral surface. The insulator inner end face and the electrostatic chuck part inner peripheral surface are in contact with each other, or an adhesion layer or a plasma-resistant adhesive layer extends in a gap between the insulator inner end face and the electrostatic chuck part inner peripheral surface. The plasma-resistant adhesive layer is formed between the electrostatic chuck part outer peripheral surface and the insulator outer end face.
    Type: Application
    Filed: February 3, 2016
    Publication date: January 25, 2018
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kazunori ISHIMURA, Kazuto ANDO, Kentaro TAKAHASHI, Yuhki KINPARA, Shinichi MAETA, Mamoru KOSAKAI
  • Publication number: 20170323819
    Abstract: Provided is an electrostatic chucking device having high heat resistance. The electrostatic chucking device of the present invention includes a first ceramic plate which includes a first surface on which a substrate is able to be placed and a second surface on the opposite side thereof, and in which an internal electrode for electrostatic adsorption is embedded; a heating member fixed to the second surface; a second ceramic plate adhered to the first ceramic plate and the heating member via a first adhesive layer; and a cooling base portion adhered to the second ceramic plate via a second adhesive layer and cools at least the second ceramic plate. The first adhesive layer has a higher heat resistance than the second adhesive layer. The second adhesive layer has a smaller Young's modulus than the first adhesive layer.
    Type: Application
    Filed: November 11, 2015
    Publication date: November 9, 2017
    Inventor: Mamoru KOSAKAI