Patents by Inventor Rieko Nishio

Rieko Nishio 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: 7323758
    Abstract: On a light shielding film 7, an anti-oxidation layer 9 covering at least the light shielding film 7 is formed. The anti-oxidation layer 9 is formed under a condition which does not oxidize a surface of the light shielding film 7. The anti-oxidation layer 9 is formed of a high melting point metal compound film having a light shielding property or an insulating film having a light transmissive property. Thus, the scattering ratio of the incident light at the surface of the light shielding film 7 can be uniform among all the pixels, and as a result, a solid state imaging device having suppressed sensitivity non-uniformity can be realized. Since the surface of the light shielding film 7 is not oxidized, the thickness of the light shielding film 7 can be reduced. Thus, the present invention can comply with the demand for size reduction of the pixels.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 29, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naoto Niisoe, Hiroe Ogata, Rieko Nishio, Toshihiko Yano, Hitoshi Doi
  • Publication number: 20060081848
    Abstract: On a light shielding film 7, an anti-oxidation layer 9 covering at least the light shielding film 7 is formed. The anti-oxidation layer 9 is formed under a condition which does not oxidize a surface of the light shielding film 7. The anti-oxidation layer 9 is formed of a high melting point metal compound film having a light shielding property or an insulating film having a light transmissive property. Thus, the scattering ratio of the incident light at the surface of the light shielding film 7 can be uniform among all the pixels, and as a result, a solid state imaging device having suppressed sensitivity non-uniformity can be realized. Since the surface of the light shielding film 7 is not oxidized, the thickness of the light shielding film 7 can be reduced. Thus, the present invention can comply with the demand for size reduction of the pixels.
    Type: Application
    Filed: March 16, 2005
    Publication date: April 20, 2006
    Inventors: Naoto Niisoe, Hiroe Ogata, Rieko Nishio, Toshihiko Yano, Hitoshi Doi
  • Patent number: 6991951
    Abstract: A solid-state imaging device production method is provided. A light-receiving section 12 is formed on a semiconductor substrate 1. A first insulating film 6 is formed on a light-receiving section 12 and the semiconductor substrate 1. A metal film for wiring is formed on the first insulating film 6. A protection film 8 is formed on the metal film. A resist film is formed on a predetermined region of the protection film. A portion of the protection film 8 and a portion of the metal film is removed by using the resist film to form a wire 7 whose upper face is covered by the protection film 8. A hydrogen-containing second insulating film 10 is formed on the wire 7 and the first insulating film 6. A heating process is performed for the second insulating film 10. An anisotropic etching process is performed for the entire surface of the second insulating film 10 to remove the second insulating film 10.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: January 31, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Rieko Nishio, Toshihiro Kuriyama
  • Publication number: 20040241893
    Abstract: A solid-state imaging device production method is provided. A light-receiving section 12 is formed on a semiconductor substrate 1. A first insulating film 6 is formed on a light-receiving section 12 and the semiconductor substrate 1. A metal film for wiring is formed on the first insulating film 6. A protection film 8 is formed on the metal film. A resist film is formed on a predetermined region of the protection film. A portion of the protection film 8 and a portion of the metal film is removed by using the resist film to form a wire 7 whose upper face is covered by the protection film 8. A hydrogen-containing second insulating film 10 is formed on the wire 7 and the first insulating film 6. A heating process is performed for the second insulating film 10. An anisotropic etching process is performed for the entire surface of the second insulating film 10 to remove the second insulating film 10.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 2, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Rieko Nishio, Toshihiro Kuriyama
  • Patent number: 6617659
    Abstract: The present invention provides a semiconductor device including a silicon substrate; a heat insulating layer including a silicon oxide film; and a heat detecting portion, in which the heat insulating layer includes a closed cavity and/or a hole, an interior of the hole has a greater diameter than an opening of the hole, and at least a portion of the closed cavity or the hole is formed within the silicon oxide film. The invention also provides a method of manufacturing this semiconductor device.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: September 9, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyoshi Komobuchi, Yoshikazu Chatani, Takahiro Yamada, Rieko Nishio, Hiroaki Uozumi, Masayuki Masuyama, Takumi Yamaguchi
  • Publication number: 20030151106
    Abstract: The present invention provides a semiconductor device including a silicon substrate; a heat insulating layer including a silicon oxide film; and a heat detecting portion, in which the heat insulating layer includes a closed cavity and/or a hole, an interior of the hole has a greater diameter than an opening of the hole, and at least a portion of the closed cavity or the hole is formed within the silicon oxide film. The invention also provides a method of manufacturing this semiconductor device.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 14, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO.
    Inventors: Hiroyoshi Komobuchi, Yoshikazu Chatani, Takahiro Yamada, Rieko Nishio, Hiroaki Uozumi, Masayuki Masuyama, Takumi Yamaguchi
  • Patent number: 6548879
    Abstract: The present invention provides a semiconductor device including a silicon substrate; a heat insulating layer including a silicon oxide film; and a heat detecting portion, in which the heat insulating layer includes a closed cavity and/or a hole, an interior of the hole has a greater diameter than an opening of the hole, and at least a portion of the closed cavity or the hole is formed within the silicon oxide film. The invention also provides a method of manufacturing this semiconductor device.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: April 15, 2003
    Inventors: Hiroyoshi Komobuchi, Yoshikazu Chatani, Takahiro Yamada, Rieko Nishio, Hiroaki Uozumi, Masayuki Masuyama, Takumi Yamaguchi
  • Patent number: 6498103
    Abstract: A method for manufacturing a solid-state imaging device includes forming a transfer channel portion and a light-receiving portion in a silicon substrate; forming a silicon oxide film on the silicon substrate; forming a silicon nitride film on the silicon oxide film, the silicon nitride film acting as a gate insulating film together with the silicon oxide film above the transfer channel portion and acting as an anti-reflection film above the light-receiving portion; forming a protection film on the silicon nitride film; forming a polysilicon film above the silicon nitride film via the protection film at least above the light-receiving portion; and etching the polysilicon film so as to form a transfer electrode above the transfer channel portion. The etching of the polysilicon film is carried out so that the polysilicon film is removed above the light-receiving portion while the protection portion remains.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: December 24, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Rieko Nishio, Takumi Yamaguchi, Toshihiro Kuriyama, Hiroyuki Senda
  • Publication number: 20020072239
    Abstract: A method for manufacturing a solid-state imaging device includes forming a transfer channel portion and a light-receiving portion in a silicon substrate; forming a silicon oxide film on the silicon substrate; forming a silicon nitride film on the silicon oxide film, the silicon nitride film acting as a gate insulating film together with the silicon oxide film above the transfer channel portion and acting as an anti-reflection film above the light-receiving portion; forming a protection film on the silicon nitride film; forming a polysilicon film above the silicon nitride film via the protection film at least above the light-receiving portion; and etching the polysilicon film so as to form a transfer electrode above the transfer channel portion. The etching of the polysilicon film is carried out so that the polysilicon film is removed above the light-receiving portion while the protection portion remains.
    Type: Application
    Filed: July 11, 2001
    Publication date: June 13, 2002
    Inventors: Rieko Nishio, Takumi Yamaguchi, Toshihiro Kuriyama, Hiroyuki Senda
  • Publication number: 20020055203
    Abstract: The present invention provides a semiconductor device including a silicon substrate; a heat insulating layer including a silicon oxide film; and a heat detecting portion, in which the heat insulating layer includes a closed cavity and/or a hole, an interior of the hole has a greater diameter than an opening of the hole, and at least a portion of the closed cavity or the hole is formed within the silicon oxide film. The invention also provides a method of manufacturing this semiconductor device.
    Type: Application
    Filed: June 29, 2001
    Publication date: May 9, 2002
    Inventors: Hiroyoshi Komobuchi, Yoshikazu Chatani, Takahiro Yamada, Rieko Nishio, Hiroaki Uozumi, Masayuki Masuyama, Takumi Yamaguchi