Patents by Inventor Shinobu Saitoh

Shinobu Saitoh 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: 7482694
    Abstract: A technique is provided for protecting an interlayer insulating film formed of an organic low dielectric constant material from any damage applied in a semiconductor process, and for attaining the decrease leak current in the interlayer insulating film, resulting in the improvement of reliability of a semiconductor device. The semiconductor device according to the present invention has an organic insulating films having openings. The organic insulating films have modified portions facing the openings. The modified portions contains fluorine atoms and nitrogen atoms. The concentration of the fluorine atoms in the modified portions is lower than the concentration of the nitrogen atoms. The above-mentioned modified layers protect the semiconductor device from the damage applied in the semiconductor process, while suppressing the corrosion of the conductors embedded in the openings.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 27, 2009
    Assignee: NEC Coporation
    Inventors: Hiroto Ohtake, Munehiro Tada, Yoshimichi Harada, Ken′ichiro Hijioka, Shinobu Saitoh, Yoshihiro Hayashi
  • Patent number: 6972453
    Abstract: In a method of manufacturing a semiconductor device, with respect to a stacked film including a silicon included organic film and a silicon non-included organic film, the silicon non-included organic film is etched by using the etching gas of mixed N2 gas and H2 gas.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: December 6, 2005
    Assignee: NEC Corporation
    Inventors: Hiroto Ohtake, Shinobu Saitoh, Munehiro Tada, Yoshihiro Hayashi
  • Publication number: 20050253272
    Abstract: A technique is provided for protecting an interlayer insulating film formed of an organic low dielectric constant material from any damage applied in a semiconductor process, and for attaining the decrease leak current in the interlayer insulating film, resulting in the improvement of reliability of a semiconductor device. The semiconductor device according to the present invention has an organic insulating films (5, 26, 28) having openings. The organic insulating films (5, 26, 28) have modified portions (5a, 26a, 28a) facing the openings. The modified portions (5a, 26a, 28a) contains fluorine atoms and nitrogen atoms. The concentration of the fluorine atoms in the modified portions (5a, 26a, 28a) is lower than the concentration of the nitrogen atoms. The above-mentioned modified layers (5a, 26a, 28a) protect the semiconductor device from the damage applied in the semiconductor process, while suppressing the corrosion of the conductors embedded in the openings.
    Type: Application
    Filed: March 31, 2003
    Publication date: November 17, 2005
    Applicant: NEC CORPORATION
    Inventors: Hiroto Ohtake, Munehiro Tada, Yoshimichi Harada, Ken'ichiro Hijioka, Shinobu Saitoh, Yoshihiro Hayashi
  • Publication number: 20020155639
    Abstract: In a method of manufacturing a semiconductor device, with respect to a stacked film including a silicon included organic film and a silicon non-included organic film, the silicon non-included organic film is etched by using the etching gas of mixed N2 gas and H2 gas.
    Type: Application
    Filed: February 22, 2002
    Publication date: October 24, 2002
    Applicant: NEC Corporation
    Inventors: Hiroto Ohtake, Shinobu Saitoh, Munehiro Tada, Yoshihiro Hayashi
  • Patent number: 6100201
    Abstract: A method of forming a capacitor by forming a dielectric layer over a bottom electrode layer, forming a top electrode layer over the dielectric layer to form laminations of the bottom electrode layer, the dielectric layer and the top electrode layer, and selectively etching the laminations to form a capacitor, the dielectric layer being etched by a reactive ion etching so that the dielectric layer of the capacitor receives no substantive damage in the etching process.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: August 8, 2000
    Assignee: NEC Corporation
    Inventors: Yukihiko Maejima, Jun Kawahara, Shinobu Saitoh, Yoshihiro Hayashi