Patents by Inventor Satoru Mayuzumi

Satoru Mayuzumi 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).

  • Publication number: 20220384652
    Abstract: A semiconductor device includes a field effect transistor including: a semiconductor substrate including a channel forming region; a gate insulating film formed at the channel forming region on the semiconductor substrate; a gate electrode formed over the gate insulating film; a first stress application layer formed over the gate electrode and applying stress to the channel forming region; a source/drain region formed on a surface layer portion of the semiconductor substrate at both sides of the gate electrode and the first stress application layer; and a second stress application layer formed over the source/drain region in a region other than at least a region of the first stress application layer and applying stress different from the first stress application layer to the channel forming region.
    Type: Application
    Filed: August 3, 2022
    Publication date: December 1, 2022
    Inventor: Satoru Mayuzumi
  • Publication number: 20210226056
    Abstract: A semiconductor device includes a field effect transistor including: a semiconductor substrate including a channel forming region; a gate insulating film formed at the channel forming region on the semiconductor substrate; a gate electrode formed over the gate insulating film; a first stress application layer formed over the gate electrode and applying stress to the channel forming region; a source/drain region formed on a surface layer portion of the semiconductor substrate at both sides of the gate electrode and the first stress application layer; and a second stress application layer formed over the source/drain region in a region other than at least a region of the first stress application layer and applying stress different from the first stress application layer to the channel forming region.
    Type: Application
    Filed: November 13, 2020
    Publication date: July 22, 2021
    Inventor: Satoru Mayuzumi
  • Patent number: 10868177
    Abstract: A semiconductor device includes a field effect transistor including: a semiconductor substrate including a channel forming region; a gate insulating film formed at the channel forming region on the semiconductor substrate; a gate electrode formed over the gate insulating film; a first stress application layer formed over the gate electrode and applying stress to the channel forming region; a source/drain region formed on a surface layer portion of the semiconductor substrate at both sides of the gate electrode and the first stress application layer; and a second stress application layer formed over the source/drain region in a region other than at least a region of the first stress application layer and applying stress different from the first stress application layer to the channel forming region.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 15, 2020
    Assignee: Sony Corporation
    Inventor: Satoru Mayuzumi
  • Patent number: 10854751
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 1, 2020
    Assignee: SONY CORPORATION
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Patent number: 10833101
    Abstract: A vertically alternating sequence of multi-fingered silicon-germanium layers and multi-fingered silicon layers is formed over a substrate. The multi-fingered silicon-germanium layers include silicon-germanium wires, and the multi-fingered silicon layers include silicon wires. Tubular memory films and multi-fingered gate electrodes are formed. Each gate electrode includes a respective gate electrode bar which overlies the silicon wires and a respective set of vertically-extending gate electrode fingers which is adjoined to a bottom portion of the respective gate electrode bar and spaced apart by the silicon wires. The multi-fingered silicon-germanium layers are removed selective to multi-fingered silicon layers. First active regions are formed at an end portion of each of the silicon wires. Second active regions are formed on silicon plate portions of the multi-fingered silicon layers.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 10, 2020
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Shigeki Shimomura, Satoru Mayuzumi, Hiroyuki Ogawa
  • Publication number: 20200286901
    Abstract: A vertically alternating sequence of multi-fingered silicon-germanium layers and multi-fingered silicon layers is formed over a substrate. The multi-fingered silicon-germanium layers include silicon-germanium wires, and the multi-fingered silicon layers include silicon wires. Tubular memory films and multi-fingered gate electrodes are formed. Each gate electrode includes a respective gate electrode bar which overlies the silicon wires and a respective set of vertically-extending gate electrode fingers which is adjoined to a bottom portion of the respective gate electrode bar and spaced apart by the silicon wires. The multi-fingered silicon-germanium layers are removed selective to multi-fingered silicon layers. First active regions are formed at an end portion of each of the silicon wires. Second active regions are formed on silicon plate portions of the multi-fingered silicon layers.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 10, 2020
    Inventors: Shigeki SHIMOMURA, Satoru MAYUZUMI, Hiroyuki OGAWA
  • Patent number: 10748966
    Abstract: A memory device includes first conductive rails laterally extending along a first horizontal direction over a substrate, where the first conductive rails include a fill portion, and a first cobalt-containing cap liner contacting a top surface of the fill portion, a rectangular array of first memory pillar structures overlying top surfaces of the first conductive rails, where each first memory pillar structure includes a respective first resistive memory element, and second conductive rails laterally extending along a second horizontal direction and overlying top surfaces of the rectangular array of first memory pillar structures.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 18, 2020
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Satoru Mayuzumi, Wei Kuo Shih, Yuji Takahashi
  • Publication number: 20200119194
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 16, 2020
    Applicant: Sony Corporation
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Patent number: 10535769
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: January 14, 2020
    Assignee: SONY CORPORATION
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Publication number: 20200006431
    Abstract: A memory device includes first conductive rails laterally extending along a first horizontal direction over a substrate, where the first conductive rails include a fill portion, and a first cobalt-containing cap liner contacting a top surface of the fill portion, a rectangular array of first memory pillar structures overlying top surfaces of the first conductive rails, where each first memory pillar structure includes a respective first resistive memory element, and second conductive rails laterally extending along a second horizontal direction and overlying top surfaces of the rectangular array of first memory pillar structures.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 2, 2020
    Inventors: Satoru MAYUZUMI, Wei Kuo SHIH, Yuji TAKAHASHI
  • Publication number: 20190259772
    Abstract: A memory device includes first conductive rails laterally extending along a first horizontal direction over a substrate, a rectangular array of first memory pillar structures, each containing a memory element, overlying top surfaces of the first conductive rails, second conductive rails laterally extending along a second horizontal direction and overlying top surfaces of the rectangular array of first memory pillar structures, and a one-dimensional array of first cavities free of solid material portions therein, laterally extending along the second horizontal direction and located between neighboring pairs of the second conductive rails.
    Type: Application
    Filed: February 17, 2018
    Publication date: August 22, 2019
    Inventors: Yuji TAKAHASHI, Satoru MAYUZUMI, Vincent SHIH
  • Patent number: 10381366
    Abstract: A memory device includes first conductive rails laterally extending along a first horizontal direction over a substrate, a rectangular array of first memory pillar structures, each containing a memory element, overlying top surfaces of the first conductive rails, second conductive rails laterally extending along a second horizontal direction and overlying top surfaces of the rectangular array of first memory pillar structures, and a one-dimensional array of first cavities free of solid material portions therein, laterally extending along the second horizontal direction and located between neighboring pairs of the second conductive rails.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: August 13, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Yuji Takahashi, Satoru Mayuzumi, Vincent Shih
  • Publication number: 20190207029
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Applicant: Sony Corporation
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Patent number: 10269961
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: April 23, 2019
    Assignee: SONY CORPORATION
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Publication number: 20190043988
    Abstract: A semiconductor device includes a field effect transistor including: a semiconductor substrate including a channel forming region; a gate insulating film formed at the channel forming region on the semiconductor substrate; a gate electrode formed over the gate insulating film; a first stress application layer formed over the gate electrode and applying stress to the channel forming region; a source/drain region formed on a surface layer portion of the semiconductor substrate at both sides of the gate electrode and the first stress application layer; and a second stress application layer formed over the source/drain region in a region other than at least a region of the first stress application layer and applying stress different from the first stress application layer to the channel forming region.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 7, 2019
    Inventor: Satoru Mayuzumi
  • Patent number: 10199227
    Abstract: A method for fabricated a buried recessed access device comprising etching a plurality of gate trenches in a substrate, implanting and activating a source/drain region in the substrate, depositing a dummy gate in each of the plurality of gate trenches, filling the plurality of gate trenches with an oxide layer, removing each dummy gate and depositing a high-K dielectric in the plurality of gate trenches, depositing a metal gate on the high-K dielectric in each of the plurality of gate trenches, depositing a second oxide layer on the metal gate and forming a contact on the source/drain.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 5, 2019
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Satoru Mayuzumi, Mark Fischer, Michael Violette
  • Publication number: 20180190820
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Application
    Filed: February 28, 2018
    Publication date: July 5, 2018
    Applicant: Sony Corporation
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Patent number: 9947790
    Abstract: A semiconductor device including a channel region formed in a semiconductor substrate; a source region formed on one side of the channel region; a drain region formed on the other side of the channel region; a gate electrode formed on the channel region with a gate insulating film therebetween; and a stress-introducing layer that applies stress to the channel region, the semiconductor device having a stress distribution in which source region-side and drain region-side peaks are positioned between a pn junction boundary of the channel region and the source region and a pn junction boundary of the channel region and the drain region.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 17, 2018
    Assignee: SONY CORPORATION
    Inventors: Satoru Mayuzumi, Hitoshi Wakabayashi
  • Patent number: 9876109
    Abstract: Some embodiments include a construction having a second semiconductor material over a first semiconductor material. A region of the second semiconductor material proximate the first semiconductor material has strain due to different lattice characteristics of the first and second semiconductor materials. A transistor gate extends downwardly into the second semiconductor material. Gate dielectric material is along sidewalls and a bottom of the transistor gate. Source/drain regions are along the sidewalls of the transistor gate, and the gate dielectric material is between the source/drain regions and the transistor gate. A channel region extends between the source/drain regions and is under the bottom of the transistor gate. At least some of the channel region is within the strained region.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: January 23, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Satoru Mayuzumi, Mark Fischer
  • Publication number: 20170263458
    Abstract: A method for fabricated a buried recessed access device comprising etching a plurality of gate trenches in a substrate, implanting and activating a source/drain region in the substrate, depositing a dummy gate in each of the plurality of gate trenches, filling the plurality of gate trenches with an oxide layer, removing each dummy gate and depositing a high-K dielectric in the plurality of gate trenches, depositing a metal gate on the high-K dielectric in each of the plurality of gate trenches, depositing a second oxide layer on the metal gate and forming a contact on the source/drain.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventors: Satoru Mayuzumi, Mark Fischer, Michael Violette