Patents by Inventor Yasunori Takasugi

Yasunori Takasugi 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: 11791130
    Abstract: The objective of the present invention is to reduce differences between individual electron beam observation devices accurately by means of image correction.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 17, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Koichi Hamada, Megumi Kimura, Momoyo Enyama, Ryou Yumiba, Makoto Sakakibara, Kei Sakai, Satoru Yamaguchi, Katsumi Setoguchi, Masumi Shirai, Yasunori Takasugi
  • Publication number: 20230317406
    Abstract: A charged particle beam system that improves throughput by applying an approximate expression created using a wafer to be actually measured is provided.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Inventors: Yuto KAWASHIMA, Satoru YAMAGUCHI, Yasunori TAKASUGI
  • Publication number: 20220051868
    Abstract: The objective of the present invention is to reduce differences between individual electron beam observation devices accurately by means of image correction.
    Type: Application
    Filed: January 23, 2019
    Publication date: February 17, 2022
    Inventors: Koichi HAMADA, Megumi KIMURA, Momoyo ENYAMA, Ryou YUMIBA, Makoto SAKAKIBARA, Kei SAKAI, Satoru YAMAGUCHI, Katsumi SETOGUCHI, Masumi SHIRAI, Yasunori TAKASUGI
  • Patent number: 10984980
    Abstract: The objective of the present invention is to provide a charged particle beam device for setting, from an image of a trench-like groove or a pit, device conditions for finding a hole or the like provided in the trench or the pit, or measuring a hole or the like provided inside the trench or the like with high accuracy. In the present invention, a charged particle beam device comprises: a deflector for causing a charged particle beam emitted from a charged particle source to perform a scan; a detector for detecting a charged particle obtained on the basis of the scanning of the charged particle beam; and a computation processing device for generating an image on the basis of the output of the detector.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 20, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kei Sakai, Satoru Yamaguchi, Hideki Itai, Yasunori Takasugi, Kumiko Shimizu
  • Patent number: 10976536
    Abstract: An image forming device is provided that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In particular, the image forming device forms an integrated image by integrating a plurality of image signals and is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals. The matching processing section varies a size of an image signal area for the matching in accordance with a determination by the periodicity determination section.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: April 13, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasunori Takasugi, Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao
  • Publication number: 20200201019
    Abstract: An image forming device is provided that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In particular, the image forming device forms an integrated image by integrating a plurality of image signals and is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals. The matching processing section varies a size of an image signal area for the matching in accordance with a determination by the periodicity determination section.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 25, 2020
    Inventors: Yasunori TAKASUGI, Kei SAKAI, Satoru YAMAGUCHI, Kazuyuki HIRAO
  • Patent number: 10665420
    Abstract: Provided is a charged particle beam apparatus, aiming at obtaining an image and the like focused on the sample surface and the bottom while preventing the visual field deviation occurred when focusing on the sample surface and the bottom respectively. The charged particle beam apparatus forms a first image (301), which is based on detection of the first energy charged particles, based on an irradiation with a beam whose focus is adjusted on a sample surface side, forms a second image (304) which is based on detection of second energy charged particles having a relatively higher energy than the first energy and a third image (303) which is based on the detection of the first energy charged particles, based on the irradiation with a beam whose focus is adjusted on a bottom side of a pattern included in the sample, acquires a deviation between the first image and the third image, and composes the first image and the second image so as to correct the deviation.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: May 26, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yasunori Takasugi, Satoru Yamaguchi, Kei Sakai, Hideki Itai, Yoshinori Momonoi, Toshimasa Kameda, Yoshihiro Kimura
  • Patent number: 10620421
    Abstract: An image forming device is provided that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In particular, the image forming device forms an integrated image by integrating a plurality of image signals and is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals. The matching processing section varies a size of an image signal area for the matching in accordance with a determination by the periodicity determination section.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: April 14, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yasunori Takasugi, Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao
  • Publication number: 20190295815
    Abstract: Provided is a charged particle beam apparatus, aiming at obtaining an image and the like focused on the sample surface and the bottom while preventing the visual field deviation occurred when focusing on the sample surface and the bottom respectively. The charged particle beam apparatus forms a first image (301), which is based on detection of the first energy charged particles, based on an irradiation with a beam whose focus is adjusted on a sample surface side, forms a second image (304) which is based on detection of second energy charged particles having a relatively higher energy than the first energy and a third image (303) which is based on the detection of the first energy charged particles, based on the irradiation with a beam whose focus is adjusted on a bottom side of a pattern included in the sample, acquires a deviation between the first image and the third image, and composes the first image and the second image so as to correct the deviation.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 26, 2019
    Inventors: Yasunori TAKASUGI, Satoru YAMAGUCHI, Kei SAKAI, Hideki ITAI, Yoshinori MOMONOI, Toshimasa KAMEDA, Yoshihiro KIMURA
  • Patent number: 10417756
    Abstract: The purpose of the present invention is to provide a pattern measurement apparatus that appropriately assesses patterns formed by patterning methods for forming patterns that do not exist on photomasks. In order to achieve this purpose, the present invention provides a pattern measurement apparatus comprising a processor that measures the dimensions of patterns formed on a sample by using data acquired by irradiating the sample with a beam, wherein the processor extracts pattern coordinate information on the basis of the data acquired by irradiating the sample with a beam, and uses the coordinate information to generate measurement reference data used when performing dimension measurements of the pattern.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 17, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao, Yasunori Takasugi
  • Publication number: 20190121113
    Abstract: An image forming device is provided that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In particular, the image forming device forms an integrated image by integrating a plurality of image signals and is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals. The matching processing section varies a size of an image signal area for the matching in accordance with a determination by the periodicity determination section.
    Type: Application
    Filed: December 17, 2018
    Publication date: April 25, 2019
    Inventors: Yasunori TAKASUGI, Kei SAKAI, Satoru YAMAGUCHI, Kazuyuki HIRAO
  • Patent number: 10197783
    Abstract: The purpose of the present invention is to provide an image forming device and the like that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In order to achieve the purpose, there is proposed an image forming device that forms an integrated image by integrating a plurality of image signals and that is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: February 5, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yasunori Takasugi, Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao
  • Publication number: 20190035600
    Abstract: The objective of the present invention is to provide a charged particle beam device for setting, from an image of a trench-like groove or a pit, device conditions for finding a hole or the like provided in the trench or the pit, or measuring a hole or the like provided inside the trench or the like with high accuracy. In the present invention, a charged particle beam device comprises: a deflector for causing a charged particle beam emitted from a charged particle source to perform a scan; a detector for detecting a charged particle obtained on the basis of the scanning of the charged particle beam; and a computation processing device for generating an image on the basis of the output of the detector.
    Type: Application
    Filed: January 29, 2016
    Publication date: January 31, 2019
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Kei SAKAI, Satoru YAMAGUCHI, Hideki ITAI, Yasunori TAKASUGI, Kumiko SHIMIZU
  • Publication number: 20180012349
    Abstract: The purpose of the present invention is to provide a pattern measurement apparatus that appropriately assesses patterns formed by patterning methods for forming patterns that do not exist on photomasks. In order to achieve this purpose, the present invention provides a pattern measurement apparatus comprising a processor that measures the dimensions of patterns formed on a sample by using data acquired by irradiating the sample with a beam, wherein the processor extracts pattern coordinate information on the basis of the data acquired by irradiating the sample with a beam, and uses the coordinate information to generate measurement reference data used when performing dimension measurements of the pattern.
    Type: Application
    Filed: January 23, 2015
    Publication date: January 11, 2018
    Inventors: Kei SAKAI, Satoru YAMAGUCHI, Kazuyuki HIRAO, Yasunori TAKASUGI
  • Publication number: 20150002652
    Abstract: The purpose of the present invention is to provide an image forming device and the like that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In order to achieve the purpose, there is proposed an image forming device that forms an integrated image by integrating a plurality of image signals and that is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals.
    Type: Application
    Filed: February 12, 2013
    Publication date: January 1, 2015
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Yasunori Takasugi, Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao