Patents by Inventor Maki Miyazaki

Maki Miyazaki 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: 11031416
    Abstract: According to one embodiment, a semiconductor storage device includes: a first stacked body in which a plurality of conductive layers are stacked via a first insulating layer, the first stacked body having a first stepped portion and a second stepped portion in which end portions of the plurality of conductive layers are formed in a step shape in a lower layer; a second stacked body in which a plurality of second insulating layers are stacked via a third insulating layer, the second stacked body having a third stepped portion in which end portions of the plurality of second insulating layers in an identical level as the conductive layers forming the first stepped portion are formed in a step shape. The first stepped portion and the third stepped portion oppose each other, and the second stepped portion and the third stepped portion overlap each other at least partially in a top view.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 8, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Maki Miyazaki
  • Publication number: 20200303407
    Abstract: According to one embodiment, a semiconductor storage device includes: a first stacked body in which a plurality of conductive layers are stacked via a first insulating layer, the first stacked body having a first stepped portion and a second stepped portion in which end portions of the plurality of conductive layers are formed in a step shape in a lower layer; a second stacked body in which a plurality of second insulating layers are stacked via a third insulating layer, the second stacked body having a third stepped portion in which end portions of the plurality of second insulating layers in an identical level as the conductive layers forming the first stepped portion are formed in a step shape. The first stepped portion and the third stepped portion oppose each other, and the second stepped portion and the third stepped portion overlap each other at least partially in a top view.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 24, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventor: Maki MIYAZAKI
  • Publication number: 20160093569
    Abstract: A semiconductor device includes a base body, an insulating layer, first contacts and a first wiring. The insulating layer is disposed above the base body. The first contacts are disposed in the insulating layer. The first contacts are in contact with the base body. The first wiring is disposed around the first contacts. The first wiring has a lower height than the first contacts have. The first wiring includes convex portions in a part of a bottom portion thereof.
    Type: Application
    Filed: April 15, 2015
    Publication date: March 31, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kotaro FUJII, Maki Miyazaki
  • Patent number: 9070559
    Abstract: According to one embodiment, first, a core pattern is formed above a hard mask layer that is formed above a process object. Then, a spacer film is formed above the hard mask layer. Next, the spacer film is etch-backed. Subsequently, an embedded layer is embedded between the core patterns whose peripheral areas are surrounded by the spacer film. Then, the core pattern and the embedded layer are removed simultaneously. Subsequently, using the spacer pattern as a mask, the hard mask layer and the process object are processed.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 30, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiro Miyoshi, Maki Miyazaki, Kentaro Matsunaga
  • Publication number: 20150031198
    Abstract: According to one embodiment, first, a core pattern is formed above a hard mask layer that is formed above a process object. Then, a spacer film is formed above the hard mask layer. Next, the spacer film is etch-backed. Subsequently, an embedded layer is embedded between the core patterns whose peripheral areas are surrounded by the spacer film. Then, the core pattern and the embedded layer are removed simultaneously. Subsequently, using the spacer pattern as a mask, the hard mask layer and the process object are processed.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 29, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Seiro MIYOSHI, Maki MIYAZAKI, Kentaro MATSUNAGA
  • Publication number: 20060073425
    Abstract: There is disclosed a method of designing a pattern comprising: preparing a first design pattern containing a first hole pattern, obtaining a distance between the first hole pattern and a pattern adjacent to the first hole pattern, obtaining an enlarged amount of the first hole pattern based on the distance and a reduction amount of a hole pattern formed in a photoresist film when the photoresist film is heated, and generating a second design pattern containing a second hole pattern which are obtained by enlarging the first hole pattern by the enlarged amount.
    Type: Application
    Filed: November 21, 2005
    Publication date: April 6, 2006
    Inventors: Maki Miyazaki, Shoji Mimotogi
  • Publication number: 20050058914
    Abstract: There is disclosed a method of designing a pattern comprising: preparing a first design pattern containing a first hole pattern, obtaining a distance between the first hole pattern and a pattern adjacent to the first hole pattern, obtaining an enlarged amount of the first hole pattern based on the distance and a reduction amount of a hole pattern formed in a photoresist film when the photoresist film is heated, and generating a second design pattern containing a second hole pattern which are obtained by enlarging the first hole pattern by the enlarged amount.
    Type: Application
    Filed: August 6, 2004
    Publication date: March 17, 2005
    Inventors: Maki Miyazaki, Shoji Mimotogi