Patents by Inventor Masato Yonezawa

Masato Yonezawa 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: 11390948
    Abstract: A film forming apparatus for performing a predetermine film forming process on a substrate mounted on an upper surface of a rotary table installed within a process vessel while rotating the rotary table and heating the substrate by a heating part, includes: a contact type first temperature measuring part configured to measure a temperature of the heating part; a non-contact type second temperature measuring part configured to measure a temperature of the substrate; and a control part configured to control a power supplied to the heating part based on at least one among a first measurement value measured by the first temperature measuring part and a second measurement value measured by the second temperature measuring part. The control part changes a method for controlling the power when the predetermined film forming process is performed on the substrate and when the substrate is loaded into or unloaded from the process vessel.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 19, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Masato Yonezawa, Shigehiro Miura, Hiroyuki Akama, Koji Yoshii
  • Patent number: 11328901
    Abstract: A deposition method performed by a deposition apparatus is provided. The deposition apparatus includes an antenna that forms an inductive magnetic field in a plasma processing region; and a rotary table that revolves a substrate around a rotational center of the rotary table. The method includes: supplying an ignition gas containing a noble gas and an additive gas to the plasma processing region; setting electric power supplied to the antenna to a first predetermined value to form a plasma of the ignition gas; increasing the electric power to a second predetermined value; stopping the supply of the additive gas; switching a gas supplied to the plasma processing region from the ignition gas to a gas for forming the film; and lifting an end of the antenna on a side closer to the rotational center while maintaining a height of another end of the antenna.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: May 10, 2022
    Assignee: Tokyo Electron Limited
    Inventors: Shigehiro Miura, Masato Yonezawa, Takehiro Fukada, Yoshitaka Enoki, Yuji Sawada
  • Publication number: 20200312621
    Abstract: A deposition method performed by a deposition apparatus is provided. The deposition apparatus includes an antenna that forms an inductive magnetic field in a plasma processing region; and a rotary table that revolves a substrate around a rotational center of the rotary table. The method includes: supplying an ignition gas containing a noble gas and an additive gas to the plasma processing region; setting electric power supplied to the antenna to a first predetermined value to form a plasma of the ignition gas; increasing the electric power to a second predetermined value; stopping the supply of the additive gas; switching a gas supplied to the plasma processing region from the ignition gas to a gas for forming the film; and lifting an end of the antenna on a side closer to the rotational center while maintaining a height of another end of the antenna.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 1, 2020
    Inventors: Shigehiro MIURA, Masato YONEZAWA, Takehiro FUKADA, Yoshitaka ENOKI, Yuji SAWADA
  • Patent number: 10668512
    Abstract: A particle removal method is provided for removing particles on a film etched using a fluorine-containing gas. In the method, a mixed gas of an activated oxygen-containing gas and hydrogen gas added to the activated oxygen-containing gas is supplied to the etched film.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 2, 2020
    Assignee: Tokyo Electron Limited
    Inventors: Jun Sato, Masato Yonezawa, Takashi Chiba
  • Publication number: 20190276935
    Abstract: A film forming apparatus for performing a predetermine film forming process on a substrate mounted on an upper surface of a rotary table installed within a process vessel while rotating the rotary table and heating the substrate by a heating part, includes: a contact type first temperature measuring part configured to measure a temperature of the heating part; a non-contact type second temperature measuring part configured to measure a temperature of the substrate; and a control part configured to control a power supplied to the heating part based on at least one among a first measurement value measured by the first temperature measuring part and a second measurement value measured by the second temperature measuring part. The control part changes a method for controlling the power when the predetermined film forming process is performed on the substrate and when the substrate is loaded into or unloaded from the process vessel.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Masato YONEZAWA, Shigehiro MIURA, Hiroyuki AKAMA, Koji YOSHII
  • Patent number: 10385453
    Abstract: A film forming apparatus for performing a predetermined film forming process on a substrate mounted on an upper surface of a rotary table installed within a process vessel while rotating the rotary table and heating the substrate by a heating part, includes: a contact type first temperature measuring part configured to measure a temperature of the heating part; a non-contact type second temperature measuring part configured to measure a temperature of the substrate; and a control part configured to control a power supplied to the heating part based on at least one among a first measurement value measured by the first temperature measuring part and a second measurement value measured by the second temperature measuring part. The control part changes a method for controlling the power when the predetermined film forming process is performed on the substrate and when the substrate is loaded into or unloaded from the process vessel.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 20, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Masato Yonezawa, Shigehiro Miura, Hiroyuki Akama, Koji Yoshii
  • Patent number: 10103009
    Abstract: An operation method of a plasma processing device, includes performing a plasma process on a workpiece by supplying first high frequency power of a predetermined output to an electrode and generating plasma; and performing a charge storage process before the plasma process when a time interval from an end of a previous operation of the plasma processing device exceeds a predetermined interval, the charge storage process including supplying, to the electrode, second high frequency power of a lower output than the predetermined output.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: October 16, 2018
    Assignee: Tokyo Electron Limited
    Inventors: Shigehiro Miura, Hitoshi Kato, Jun Sato, Takeshi Kobayashi, Masato Yonezawa
  • Publication number: 20180169716
    Abstract: A particle removal method is provided for removing particles on a film etched using a fluorine-containing gas. In the method, a mixed gas of an activated oxygen-containing gas and hydrogen gas added to the activated oxygen-containing gas is supplied to the etched film.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Inventors: Jun SATO, Masato YONEZAWA, Takashi CHIBA
  • Patent number: 9941343
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: April 10, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Patent number: 9865454
    Abstract: A substrate processing apparatus includes a vacuum chamber including a top plate, a rotary table rotatably disposed in the vacuum chamber, a first process gas supply part that supplies a first process gas to be adsorbed on a surface of a substrate placed on the rotary table, a plasma processing gas supply part that is disposed apart from the first process gas supply part in a circumferential direction of the rotary table and supplies a second process gas to the surface of the substrate, a separation gas supply part that supplies a separation gas for separating the first process gas and the second process gas, a plasma generator that converts the second process gas into plasma, and an elevating mechanism that moves at least one of the plasma generator and the rotary table upward and downward.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 9, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hitoshi Kato, Hiroyuki Kikuchi, Masato Yonezawa, Jun Sato, Shigehiro Miura
  • Publication number: 20170309695
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Application
    Filed: July 5, 2017
    Publication date: October 26, 2017
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Patent number: 9711582
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: July 18, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Publication number: 20170051403
    Abstract: A film forming apparatus for performing a predetermine film forming process on a substrate mounted on an upper surface of a rotary table installed within a process vessel while rotating the rotary table and heating the substrate by a heating part, includes: a contact type first temperature measuring part configured to measure a temperature of the heating part; a non-contact type second temperature measuring part configured to measure a temperature of the substrate; and a control part configured to control a power supplied to the heating part based on at least one among a first measurement value measured by the first temperature measuring part and a second measurement value measured by the second temperature measuring part. The control part changes a method for controlling the power when the predetermined film forming process is performed on the substrate and when the substrate is loaded into or unloaded from the process vessel.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 23, 2017
    Inventors: Masato YONEZAWA, Shigehiro MIURA, Hiroyuki AKAMA, Koji YOSHII
  • Publication number: 20160268105
    Abstract: An operation method of a plasma processing device, includes performing a plasma process on a workpiece by supplying first high frequency power of a predetermined output to an electrode and generating plasma; and performing a charge storage process before the plasma process when a time interval from an end of a previous operation of the plasma processing device exceeds a predetermined interval, the charge storage process including supplying, to the electrode, second high frequency power of a lower output than the predetermined output.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 15, 2016
    Inventors: Shigehiro MIURA, Hitoshi KATO, Jun SATO, Takeshi KOBAYASHI, Masato YONEZAWA
  • Publication number: 20160247871
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Application
    Filed: May 4, 2016
    Publication date: August 25, 2016
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Patent number: 9376751
    Abstract: An operation method of a plasma processing device, includes performing a plasma process on a workpiece by supplying first high frequency power of a predetermined output to an electrode and generating plasma; and performing a charge storage process before the plasma process when a time interval from an end of a previous operation of the plasma processing device exceeds a predetermined interval, the charge storage process including supplying, to the electrode, second high frequency power of a lower output than the predetermined output.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 28, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigehiro Miura, Hitoshi Kato, Jun Sato, Takeshi Kobayashi, Masato Yonezawa
  • Patent number: 9337243
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 10, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Publication number: 20150380472
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Application
    Filed: July 13, 2015
    Publication date: December 31, 2015
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki
  • Publication number: 20150235813
    Abstract: An operation method of a plasma processing device, includes performing a plasma process on a workpiece by supplying first high frequency power of a predetermined output to an electrode and generating plasma; and performing a charge storage process before the plasma process when a time interval from an end of a previous operation of the plasma processing device exceeds a predetermined interval, the charge storage process including supplying, to the electrode, second high frequency power of a lower output than the predetermined output.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 20, 2015
    Inventors: Shigehiro MIURA, Hitoshi KATO, Jun SATO, Takeshi KOBAYASHI, Masato YONEZAWA
  • Patent number: 9082677
    Abstract: An area sensor of the present invention has a function of displaying an image in a sensor portion by using light-emitting elements and a reading function using photoelectric conversion devices. Therefore, an image read in the sensor portion can be displayed thereon without separately providing an electronic display on the area sensor. Furthermore, a photoelectric conversion layer of a photodiode according to the present invention is made of an amorphous silicon film and an N-type semiconductor layer and a P-type semiconductor layer are made of a polycrystalline silicon film. The amorphous silicon film is formed to be thicker than the polycrystalline silicon film. As a result, the photodiode according to the present invention can receive more light.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: July 14, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Masato Yonezawa, Hajime Kimura, Yu Yamazaki