Patents by Inventor Ryu Shimizu

Ryu Shimizu 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: 7112881
    Abstract: A semiconductor device allowing simplification of a fabrication process is provided. This semiconductor device comprises a first insulator film, consisting of a single material, formed to be in contact with the upper surface of a semiconductor chip including a circuit, a first wire formed to be in contact with the upper surface of the first insulator film and a second wire formed to extend along the side surface and the lower surface of the semiconductor chip and connected to the lower surface of the first wire exposed by partially removing the first insulator film.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: September 26, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takayuki Kaida, Ryu Shimizu, Mitsuru Okigawa, Tetsuya Miwa, Takashi Noma
  • Publication number: 20060170007
    Abstract: A solid-state image sensor capable of suppressing color mixture while suppressing increase of load capacitances of transfer gates and a short circuit between two adjacent transfer gates is provided. This solid-state image sensor comprises a plurality of transfer gates and a shielding material line blocking light incident from above a prescribed pixel upon another pixel adjacent to the prescribed pixel. The shielding material line has a downward projecting portion on a region corresponding to at least one transfer gate entering an ON-state in photoreception.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 3, 2006
    Inventors: Yoshinari Ichihashi, Ryu Shimizu, Kazuhiro Sasada
  • Patent number: 7081998
    Abstract: A solid-state imaging apparatus allowing miniaturization in a structure having a lens provided between a substrate and a color filter layer is provided. This solid-state imaging apparatus comprises a photodetection part formed on the substrate, the color filter layer formed on the substrate and the lens formed between the substrate and the color filter layer for concentrating light on the photodetection part. The lens has an upwardly projecting upper surface portion, while the upper end of the upper surface portion substantially comes into contact with the lower surface of the color filter layer.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: July 25, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryu Shimizu, Mitsuru Okigawa
  • Publication number: 20050200711
    Abstract: A solid state imaging device includes photoelectric conversion portions for performing photoelectric conversion, and transfer portions for transferring signal charge occurring at the photoelectric conversion portions. Each transfer portion includes a transfer electrode formed of polysilicon film or the like, and an insulating coating film formed of a material such as a silicon nitride film and so forth, which has a higher relative dielectric constant than that of the silicon oxide, for coating the bottom face, the upper face, and both side faces, of the transfer electrode. The silicon nitride film is formed with a film thickness which is greater than 0 nm and smaller than 60 nm, on both sides of the transfer electrode.
    Type: Application
    Filed: March 9, 2005
    Publication date: September 15, 2005
    Inventors: Ryu Shimizu, Kazuhiro Sasada, Masahiro Oda
  • Publication number: 20050161585
    Abstract: A solid-state imaging device capable of suppressing deterioration of the image quality is provided. This solid-state imaging device comprises a substrate provided with a photodetection area, a color filter layer formed above the photodetection area and a lens formed between the substrate and the color filter layer for condensing light on the photodetection area. The lens has a substantially flat upper surface portion, and the ratio (w/t) of the width w of the substantially flat upper surface portion of the lens to the thickness t of the lens is not more than about 0.86.
    Type: Application
    Filed: January 25, 2005
    Publication date: July 28, 2005
    Inventors: Hayato Nakashima, Ryu Shimizu, Mitsuru Okigawa, Tetsuya Miwa
  • Patent number: 6900125
    Abstract: When forming the interconnect trench by “via first” method of the dual damascene process, after providing a via hole in the interlayer dielectric film 11, the anti-reflection coating 5 and the resist layer 6 are formed such that whichever has a faster etching rate in the formation process of the interconnect trench, out of the anti-reflection coating 5 and the resist layer 6, is disposed at the same level as a bottom portion of the interconnect trench to be formed through the formation process thereof.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: May 31, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Ryu Shimizu
  • Publication number: 20050088753
    Abstract: A solid-state imaging apparatus allowing miniaturization in a structure having a lens provided between a substrate and a color filter layer is provided. This solid-state imaging apparatus comprises a photodetection part formed on the substrate, the color filter layer formed on the substrate and the lens formed between the substrate and the color filter layer for concentrating light on the photodetection part. The lens has an upwardly projecting upper surface portion, while the upper end of the upper surface portion substantially comes into contact with the lower surface of the color filter layer.
    Type: Application
    Filed: October 18, 2004
    Publication date: April 28, 2005
    Inventors: Ryu Shimizu, Mitsuru Okigawa
  • Publication number: 20050062146
    Abstract: A semiconductor device allowing simplification of a fabrication process is provided. This semiconductor device comprises a first insulator film, consisting of a single material, formed to be in contact with the upper surface of a semiconductor chip including a circuit, a first wire formed to be in contact with the upper surface of the first insulator film and a second wire formed to extend along the side surface and the lower surface of the semiconductor chip and connected to the lower surface of the first wire exposed by partially removing the first insulator film.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 24, 2005
    Inventors: Takayuki Kaida, Ryu Shimizu, Mitsuru Okigawa, Tetsuya Miwa, Takashi Noma
  • Publication number: 20050052562
    Abstract: A solid-state image pickup device improvable in photosensitivity also in the vicinity of an end of a substrate is provided. This solid-state image pickup device comprises a photodetection part formed on a substrate, a color filter layer and a lens, formed between the substrate and the color filter for condensing light on the photodetection part, having a lens center deviated from the center of the photodetection part by a prescribed distance.
    Type: Application
    Filed: August 18, 2004
    Publication date: March 10, 2005
    Inventors: Ryu Shimizu, Mitsuru Okigawa, Tetsuya Miwa, Hayato Nakashima
  • Publication number: 20040259349
    Abstract: When forming the interconnect trench by “via first” method of the dual damascene process, after providing a via hole in the interlayer dielectric film 11, the anti-reflection coating 5 and the resist layer 6 are formed such that whichever has a faster etching rate in the formation process of the interconnect trench, out of the anti-reflection coating 5 and the resist layer 6, is disposed at the same level as a bottom portion of the interconnect trench to be formed through the formation process thereof.
    Type: Application
    Filed: September 24, 2003
    Publication date: December 23, 2004
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Ryu Shimizu
  • Publication number: 20040072083
    Abstract: A photomask for use in photolithographic processing performed to manufacture a semiconductor device. The photomask includes four square regions, each having a mask pattern. The four mask patterns are used successively and re formed so that the photomask is used oriented in substantially the same direction.
    Type: Application
    Filed: August 27, 2003
    Publication date: April 15, 2004
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kouichi Saitou, Ryu Shimizu
  • Patent number: 5086013
    Abstract: A lift-off method for fine patterning includes the steps of: applying a photoresist layer to a substrate; implanting ions into predetermined regions in a surface layer of the photoresist layer; irradiating the photoresist layer with ultraviolet from above; developing the photoresist layer to form a resist pattern for lift-off; depositing a desired material with a predetermined thickness from above the resist pattern; and removing the resist pattern, thereby lifting off the material on the resist pattern, whereby a fine pattern of the desired material is left on the substrate.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: February 4, 1992
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryu Shimizu, Shun-ichi Kobayashi