Patents by Inventor Teruhiko Ichimura

Teruhiko Ichimura 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: 9304346
    Abstract: A display device includes: a first substrate and a second substrate which are located so that inner main surfaces thereof face each other; a liquid crystal layer located between the first substrate and the second substrate; a seal material located between the first substrate and the second substrate so as to surround the liquid crystal layer, the seal material bonding the first substrate and the second substrate to each other; an organic insulation film located in a seal formation area on the inner main surface of the second substrate, the organic insulation film having an opening section in the seal formation area; and an inorganic insulation film located to continue from an inside of the opening section to a surface of the organic insulation film through an inner wall surface of the opening section, the inorganic insulation film being directly covered with the seal material.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 5, 2016
    Assignee: Kyocera Corporation
    Inventors: Teruhiko Ichimura, Hideaki Sakai, Shigeki Kitamura, Hiroaki Ito
  • Publication number: 20140043574
    Abstract: A display device includes: a first substrate and a second substrate which are located so that inner main surfaces thereof face each other; a liquid crystal layer located between the first substrate and the second substrate; a seal material located between the first substrate and the second substrate so as to surround the liquid crystal layer, the seal material bonding the first substrate and the second substrate to each other; an organic insulation film located in a seal formation area on the inner main surface of the second substrate, the organic insulation film having an opening section in the seal formation area; and an inorganic insulation film located to continue from an inside of the opening section to a surface of the organic insulation film through an inner wall surface of the opening section, the inorganic insulation film being directly covered with the seal material.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 13, 2014
    Applicant: KYOCERA CORPORATION
    Inventors: Teruhiko Ichimura, Hideaki Sakai, Shigeki Kitamura, Hiroaki Ito
  • Publication number: 20100056028
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Application
    Filed: November 5, 2009
    Publication date: March 4, 2010
    Inventors: Tetsuji TOGAWA, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Patent number: 7632173
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: December 15, 2009
    Assignee: Ebara Corporation
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Publication number: 20080119121
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Application
    Filed: December 6, 2007
    Publication date: May 22, 2008
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Patent number: 7311585
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 25, 2007
    Assignee: Ebara Corporation
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Patent number: 7163895
    Abstract: The present invention is relates to a polishing method for polishing a semiconductor wafer (W) by pressing the semiconductor wafer (W) against a polishing surface (10) with use of a top ring (23) for holding the semiconductor wafer (W). A pressure chamber (70) is defined in the top ring (23) by attaching an elastic membrane (60) to a lower surface of a vertically movable member (62). The semiconductor wafer (W) is polished while a pressurized fluid is supplied to the pressure chamber (70) so that the semiconductor wafer (W) is pressed against the polishing surface (10) by a fluid pressure of the fluid. The semiconductor wafer (W) which has been polished is released from the top ring (23) by ejecting the pressurized fluid from an opening (62a) defined centrally in the vertically movable member (62).
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: January 16, 2007
    Assignee: Ebara Corporation
    Inventors: Tetsuji Togawa, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Osamu Nabeya, Teruhiko Ichimura
  • Publication number: 20060099892
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Application
    Filed: December 21, 2005
    Publication date: May 11, 2006
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Patent number: 7033260
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. The substrate holding apparatus according to the present invention comprises a top ring body having a receiving space therein, and a vertically movable member which is vertically movable within the receiving space in the top ring body. An abutment member having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane of the abutment member comprises an abutment portion, having a flange projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion extending upwardly from a base portion of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than that of material of the abutment portion.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: April 25, 2006
    Assignee: Ebara Corporation
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Publication number: 20060079092
    Abstract: The present invention is relates to a polishing method for polishing a semiconductor wafer (W) by pressing the semiconductor wafer (W) against a polishing surface (10) with use of a top ring (23) for holding the semiconductor wafer (W). A pressure chamber (70) is defined in the top ring (23) by attaching an elastic membrane (60) to a lower surface of a vertically movable member (62). The semiconductor wafer (W) is polished while a pressurized fluid is supplied to the pressure chamber (70) so that the semiconductor wafer (W) is pressed against the polishing surface (10) by a fluid pressure of the fluid. The semiconductor wafer (W) which has been polished is released from the top ring (23) by ejecting the pressurized fluid from an opening (62a) defined centrally in the vertically movable member (62).
    Type: Application
    Filed: November 15, 2005
    Publication date: April 13, 2006
    Inventors: Tetsuji Togawa, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Osamu Nabeya, Teruhiko Ichimura
  • Publication number: 20050107015
    Abstract: The present invention relates to a substrate holding apparatus for holding a substrate (W) such as a semiconductor wafer in a polishing apparatus for polishing the substrate to a flat finish. A substrate holding apparatus according to the present invention comprises a top ring body (2) having a receiving space therein, and a vertically movable member (206) which is vertically movable within the receiving space in the top ring body. An abutment member (209) having an elastic membrane is attached to a lower surface of the vertically movable member. The elastic membrane (291) of the abutment member comprises an abutment portion (291b), having a flange (291a) projecting outwardly, brought into direct or indirect contact with the substrate, and a connecting portion (291c) extending upwardly from a base portion (291d) of the flange of the abutment portion and being connected to the vertically movable member. The connecting portion is made of a material having a flexibility higher than the abutment portion.
    Type: Application
    Filed: December 6, 2002
    Publication date: May 19, 2005
    Inventors: Tetsuji Togawa, Osamu Nabeya, Makoto Fukushima, Kunihiko Sakurai, Hiroshi Yoshida, Teruhiko Ichimura
  • Publication number: 20040198011
    Abstract: The present invention is relates to a polishing method for polishing a semiconductor wafer (W) by pressing the semiconductor wafer (W) against a polishing surface (10) with use of a top ring (23) for holding the semiconductor wafer (W). A pressure chamber (70) is defined in the top ring (23) by attaching an elastic membrane (60) to a lower surface of a vertically movable member (62). The semiconductor wafer (W) is polished while a pressurized fluid is supplied to the pressure chamber (70) so that the semiconductor wafer (W) is pressed against the polishing surface (10) by a fluid pressure of the fluid. The semiconductor wafer (W) which has been polished is released from the top ring (23) by ejecting the pressurized fluid from an opening (62a) defined centrally in the vertically movable member (62).
    Type: Application
    Filed: May 20, 2004
    Publication date: October 7, 2004
    Inventors: Tetsuji Togawa, Makoto Fukushima, Kinihiko Sakurai, Hiroshi Yoshida, Osamu Nabeya, Teruhiko ichimura
  • Publication number: 20030032378
    Abstract: A polishing surface constituting member capable of polishing an object surface flat and uniformly with minimal overpolishing at the edge of the object is provided, together with a polishing apparatus using the polishing surface constituting member. The polishing surface constituting member polishes the object pressed against it under a predetermined pressure by relative movement therebetween. A surface of the polishing surface constituting member that comes in contact with the object is provided with grooves at a predetermined pitch or provided with projections in a predetermined configuration.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 13, 2003
    Inventors: Teruhiko Ichimura, Makoto Akagi, Tetsuji Togawa
  • Patent number: 6435956
    Abstract: The present invention provides a substrate holding apparatus which can adjust a holding state of a substrate in accordance with a polishing state, and maintain uniformity of a polishing amount over an entire surface of the substrate, or control the polishing amount intentionally. The substrate holding apparatus comprises a holding plate having a holding surface for a substrate, a cover element for covering a backside surface of the holding plate to form a sealed back pressure space at the backside surface side, a plurality of through-holes distributed over the substantially entire holding surface for allowing the holding surface to communicate with the back pressure space, a division element removably provided for dividing the back pressure space between the holding plate and the cover element into a plurality of predetermined sealed divisional spaces in a plane, and a back pressure controller for individually controlling back pressures in the divisional spaces.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: August 20, 2002
    Assignee: Ebara Corporation
    Inventors: Shin Ohwada, Teruhiko Ichimura
  • Patent number: 6425809
    Abstract: A polishing apparatus for polishing a plate-like member such as semiconductor wafer with a high degree of polished surface flatness is provided. The apparatus comprises a turntable having a surface provided on its upper surface with a polishing pad having an upper or polishing surface, and a carrier having an article holding surface for holding thereon a plate-like article. The carrier is adapted to press a surface of the plate-like article against the polishing surface of the polishing pad to polish and flatten the surface of the plate-like article by relative movement between the article and the polishing surface. An annular member is provided along the peripheral edge of the plate-like article between the article holding surface and the plate-like article to form a chamber therebetween, and a pressurized fluid source is fluidly connected to the chamber for supplying a pressurized fluid into the chamber.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: July 30, 2002
    Assignee: Ebara Corporation
    Inventor: Teruhiko Ichimura
  • Patent number: 5496752
    Abstract: A first sheet of photomask is used when a gate electrode and a gate bus line are formed, a second sheet of photomask is used when patterning is applied to a semiconductor film which becomes an active layer of a transistor on the gate electrode, a third sheet of photomask is used when a pixel electrode, a source electrode, a drain electrode, a drain bus line and a drain bus terminal portion are formed, and a fourth sheet of photomask is used when a film on the drain bus terminal portion, the gate bus terminal portion and pixel portion is removed, thereby to form thin film transistors arranged in a matrix form.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: March 5, 1996
    Assignee: Fujitsu Limited
    Inventors: Yasuhiro Nasu, Teruhiko Ichimura, Tomotaka Matsumoto
  • Patent number: 5496749
    Abstract: A first sheet of photomask is used when a gate electrode and a gate bus line are formed, a second sheet of photomask is used when patterning is applied to a semiconductor film which becomes an active layer of a transistor on the gate electrode, a third sheet of photomask is used when a pixel electrode, a source electrode, a drain electrode, a drain bus line and a drain bus terminal portion are formed, and a fourth sheet of photomask is used when a film on the drain bus terminal portion, the gate bus terminal .portion and pixel portion is removed, thereby to form thin film transistors arranged in a matrix form.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: March 5, 1996
    Assignee: Fujitsu Limited
    Inventors: Yasuhiro Nasu, Teruhiko Ichimura, Tomotaka Matsumoto
  • Patent number: 5480818
    Abstract: A crystal silicon film deposited on an insulating film made of a binary system material or a binary system semiconductor film formed by an atomic layer deposition method has a grain as large as approximately 200 nm. Thus, the mobility of carriers is increased. The crystal silicon thereof is grown within a temperature range of 250.degree. C. to 400.degree. C. Accordingly, when a planar type thin film transistor, an inverted stagger type thin film transistor or a stagger type thin film transistor is formed using crystal silicon formed on these films made of a binary system material, transistor characteristics thereof are improved.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: January 2, 1996
    Assignee: Fujitsu Limited
    Inventors: Tomotaka Matsumoto, Jun Inoue, Teruhiko Ichimura, Yuji Murata, Junichi Watanabe, Yoshio Nagahiro, Mari Hodate, Kenichi Oki, Masahiro Okabe
  • Patent number: 5462885
    Abstract: A first sheet of photomask is used when a gate electrode and a gate bus line are formed, a second sheet of photomask is used when patterning is applied to a semiconductor film which becomes an active layer of a transistor on the gate electrode, a third sheet of photomask is used when a pixel electrode, a source electrode, a drain electrode, a drain bus line and a drain bus terminal portion are formed, and a fourth sheet of photomask is used when a film on the drain bus terminal portion, the gate bus terminal portion and pixel portion is removed, thereby to form thin film transistors arranged in a matrix form.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: October 31, 1995
    Assignee: Fujitsu Limited
    Inventors: Yasuhiro Nasu, Teruhiko Ichimura, Tomotaka Matsumoto
  • Patent number: 5407845
    Abstract: A first sheet of photomask is used when a gate electrode and a gate bus line are formed, a second sheet of photomask is used when patterning is applied to a semiconductor film which becomes an active layer of a transistor on the gate electrode, a third sheet of photomask is used when a pixel electrode, a source electrode, a drain electrode, a drain bus line and a drain bus terminal portion are formed, and a fourth sheet of photomask is used when a film on the drain bus terminal portion, the gate bus terminal portion and pixel portion is removed, thereby to form thin film transistors arranged in a matrix form.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: April 18, 1995
    Assignee: Fujitsu Limited
    Inventors: Yasuhiro Nasu, Teruhiko Ichimura, Tomotaka Matsumoto