Patents by Inventor Fumitaka Shoji

Fumitaka Shoji 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: 20210348273
    Abstract: A susceptor assembly for a reactor system may comprise a susceptor body defined by a susceptor outer edge, the susceptor body comprising a susceptor outer portion and a susceptor inner portion, wherein the susceptor outer portion is proximate the susceptor outer edge, and the susceptor inner portion is at least partially enclosed within the susceptor outer portion; a first tuning circuit comprising an edge electrode and a first resonance circuit coupled to the edge electrode, wherein the edge electrode is coupled to the susceptor body; a second tuning circuit comprising a center electrode and a second resonance circuit coupled to the center electrode, wherein the center electrode is coupled to the susceptor body; wherein the edge electrode is disposed more proximate the susceptor outer edge than the center electrode.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 11, 2021
    Inventors: Ryu Nakano, Fumitaka Shoji
  • Publication number: 20210225622
    Abstract: Examples of a substrate treatment apparatus include an output device configured to output a plasma-related signal which is a signal obtained in association with plasma treatment used for the substrate treatment, and a controller configured to monitor an integrated value of the plasma-related signal received directly or indirectly from the output device.
    Type: Application
    Filed: January 13, 2021
    Publication date: July 22, 2021
    Inventor: Fumitaka Shoji
  • Patent number: 10854498
    Abstract: A wafer-supporting device for supporting a wafer thereon adapted to be installed in a semiconductor-processing apparatus includes: a base surface; and protrusions protruding from the base surface and having rounded tips for supporting a wafer thereon. The rounded tips are such that a reverse side of a wafer is supported entirely by the rounded tips by point contact. The protrusions are disposed substantially uniformly on an area of the base surface over which a wafer is placed, wherein the number (N) and the height (H [?m]) of the protrusions as determined in use satisfy the following inequities per area for a 300-mm wafer: (?0.5N+40)?H?53;5?N?100.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: December 1, 2020
    Assignee: ASM IP Holding B.V.
    Inventors: Fumitaka Shoji, Hideaki Fukuda
  • Patent number: 10734219
    Abstract: Examples of a plasma film forming method include repeating feeding material gas onto a substrate placed on a susceptor via a shower head provided to oppose the susceptor, performing plasma film formation on the substrate by applying high frequency power to the shower head while providing reactant gas onto the substrate, and performing post-purge of discharging the gas used in the plasma film formation while heating the shower head, for a time longer than 0.1 seconds, a plurality of times in this order.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 4, 2020
    Assignee: ASM IP Holdings B.V.
    Inventor: Fumitaka Shoji
  • Publication number: 20200098563
    Abstract: Examples of a plasma film forming method include repeating feeding material gas onto a substrate placed on a susceptor via a shower head provided to oppose the susceptor, performing plasma film formation on the substrate by applying high frequency power to the shower head while providing reactant gas onto the substrate, and performing post-purge of discharging the gas used in the plasma film formation while heating the shower head, for a time longer than 0.1 seconds, a plurality of times in this order.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Applicant: ASM IP Holding B.V.
    Inventor: Fumitaka SHOJI
  • Patent number: 9365924
    Abstract: A method for forming a dielectric film on a substrate by plasma-assisted deposition, includes: introducing a Si-containing process gas to a reaction space wherein a substrate having a surface with patterned recesses is placed; and applying RF power to the process gas in the reaction space to form a dielectric film on the surface by plasma reaction. The RF power is comprised of pulses of high-frequency RF power and pulses of low-frequency RF power, which overlap and are synchronized.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: June 14, 2016
    Assignee: ASM IP Holding B.V.
    Inventors: Yuya Nonaka, Fumitaka Shoji, Hiroki Arai
  • Patent number: 9018093
    Abstract: A method for forming a layer constituted by repeated stacked layers includes: forming a first layer and a second layer on a substrate under different deposition conditions to form a stacked layer, wherein the film stresses of the first and second layers are tensile or compressive and opposite to each other, and the wet etch rates of the first and second layers are at least 50 times different from each other; and repeating the above step to form a layer constituted by repeated stacked layers, wherein the deposition conditions for forming at least one stacked layer are different from those for forming another stacked layer.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 28, 2015
    Assignee: ASM IP Holding B.V.
    Inventors: Naoto Tsuji, Fumitaka Shoji
  • Publication number: 20140349033
    Abstract: A method for forming a dielectric film on a substrate by plasma-assisted deposition, includes: introducing a Si-containing process gas to a reaction space wherein a substrate having a surface with patterned recesses is placed; and applying RF power to the process gas in the reaction space to form a dielectric film on the surface by plasma reaction. The RF power is comprised of pulses of high-frequency RF power and pulses of low-frequency RF power, which overlap and are synchronized.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: ASM IP Holding B.V.
    Inventors: Yuya Nonaka, Fumitaka Shoji, Hiroki Arai
  • Publication number: 20140213065
    Abstract: A method for forming a layer constituted by repeated stacked layers includes: forming a first layer and a second layer on a substrate under different deposition conditions to form a stacked layer, wherein the film stresses of the first and second layers are tensile or compressive and opposite to each other, and the wet etch rates of the first and second layers are at least 50 times different from each other; and repeating the above step to form a layer constituted by repeated stacked layers, wherein the deposition conditions for forming at least one stacked layer are different from those for forming another stacked layer.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: ASM IP HOLDING B.V.
    Inventors: Naoto Tsuji, Fumitaka Shoji
  • Publication number: 20130014896
    Abstract: A wafer-supporting device for supporting a wafer thereon adapted to be installed in a semiconductor-processing apparatus includes: a base surface; and protrusions protruding from the base surface and having rounded tips for supporting a wafer thereon. The rounded tips are such that a reverse side of a wafer is supported entirely by the rounded tips by point contact. The protrusions are disposed substantially uniformly on an area of the base surface over which a wafer is placed, wherein the number (N) and the height (H [?m]) of the protrusions as determined in use satisfy the following inequities per area for a 300-mm wafer: (?0.5N+40)?H?53; 5?N<100.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Applicant: ASM JAPAN K.K.
    Inventors: Fumitaka Shoji, Hideaki Fukuda