Patents by Inventor Tsunenori Nomaguchi

Tsunenori Nomaguchi 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: 12119202
    Abstract: Provided is a charged particle beam device capable of stably obtaining an effect of improving the depth of focus or the effect of correcting spherical aberration. The charged particle beam device includes an aperture having an annular slit or an electrode having an annular slit and is provided with means for adjusting the incident angle at which the charged particle beam is incident on the aperture or the electrode. Since the incident angle at which the charged particle beam is incident on the aperture or electrode having an annular slit can be made closer to perpendicular, the effect of improving the depth of focus or the effect of correcting spherical aberration can be stably obtained.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: October 15, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shunichi Motomura, Tsunenori Nomaguchi
  • Publication number: 20240029992
    Abstract: Provided is a charged particle beam device capable of stably obtaining an effect of improving the depth of focus or the effect of correcting spherical aberration. The charged particle beam device includes an aperture having an annular slit or an electrode having an annular slit and is provided with means for adjusting the incident angle at which the charged particle beam is incident on the aperture or the electrode. Since the incident angle at which the charged particle beam is incident on the aperture or electrode having an annular slit can be made closer to perpendicular, the effect of improving the depth of focus or the effect of correcting spherical aberration can be stably obtained.
    Type: Application
    Filed: December 12, 2019
    Publication date: January 25, 2024
    Inventors: Shunichi MOTOMURA, Tsunenori NOMAGUCHI
  • Patent number: 11817289
    Abstract: As a device for correcting positive spherical aberration of an electromagnetic lens for a charged particle beam, a spherical aberration correction device combining a hole electrode and a ring electrode is known. In this spherical aberration correction device, when a voltage is applied between the hole electrode and the ring electrode, the focus of the charged particle beam device changes due to the convex lens effect generated in the hole electrode. Therefore, in a charged particle beam device including a charged particle beam source which generates a charged particle beam, a charged particle beam aperture having a ring shape, and a charged particle beam aperture power supply which applies a voltage to the charged particle beam aperture, the charged particle beam aperture power supply is configured to apply, to the charged particle beam aperture, a voltage having a polarity opposite to a polarity of charges of the charged particle beam.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: November 14, 2023
    Assignees: Hitachi High-Tech Corporation, Japan Fine Ceramics Center
    Inventors: Tsunenori Nomaguchi, Shunichi Motomura, Tadahiro Kawasaki, Takeharu Kato, Ryuji Yoshida
  • Patent number: 11798776
    Abstract: Provided is a charged particle beam apparatus capable of stably obtaining a spherical aberration correction effect. The charged particle beam apparatus includes: a charged particle beam aperture stop 121 and an electrode 122 that are arranged on an optical axis between the charged particle beam source 101 and the objective lens 105; and a power supply 108 that applies a voltage between the charged particle beam aperture stop 121 and the electrode 122, in which the voltage that is applied from the electrode to the charged particle beam aperture stop by the power supply is a voltage having a polarity opposite to a charge of the charged particle beam, the electrode 122 includes an annular aperture 205, and the charged particle beam aperture stop 121 includes a plurality of apertures 201 that are arranged at positions overlapping the annular aperture 205 of the electrode 122 when viewed in a direction Z along the optical axis.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 24, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shunichi Motomura, Tsunenori Nomaguchi
  • Patent number: 11784022
    Abstract: A scanning electron beam apparatus which two-dimensionally scans a sample by an electron beam to achieve high resolution even with a photoexcited electron source. The electron beam apparatus includes a photocathode including a substrate having a refractive index of more than 1.7 and a photoemissive film, a focusing lens configured to focus an excitation light toward the photocathode, an extractor electrode disposed facing the photocathode and configured to accelerate an electron beam generated from the photoemissive film by focusing the excitation light by the focusing lens and emitting the excitation light through the substrate, and an electron optics including a deflector configured to two-dimensionally scan a sample by the electron beam accelerated by the extractor electrode. For a spherical aberration of the focusing lens, a root mean square of the spherical aberration on the photoemissive film is equal to or less than 1/14 of a wavelength of the excitation light.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 10, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Takashi Ohshima, Tatsuro Ide, Hideo Morishita, Yoichi Ose, Tsunenori Nomaguchi, Toshihide Agemura
  • Publication number: 20230268156
    Abstract: Tweezers 8, which can grip a sample piece 9, includes a gripping member 8a1 and a gripping member 8a2. The gripping member 8a1 includes a gripping region 8c1 and an abutment region 8b1, and the gripping member 8a2 includes a gripping region 8c2 and an abutment region 8b2. The gripping region 8c1 and the gripping region 8c2 include a gripping surface SF1 and a gripping surface SF2 for gripping the sample piece 9, respectively. The abutment region 8b1 protrudes from the gripping region 8c1 in a direction directed from the gripping surface SF1 to the gripping surface SF2, and the abutment region 8b2 protrudes from the gripping region 8c2 in a direction directed from the gripping surface SF2 to the gripping surface SF1.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 24, 2023
    Inventors: Naoki SAMURA, Tsunenori NOMAGUCHI, Shinsuke KAWANISHI, Yaku MAEDA
  • Patent number: 11640897
    Abstract: The present invention provides a charged particle beam apparatus capable of efficiently reducing the effect of a residual magnetic field when SEM observation is performed. The charged particle beam apparatus according to the present invention includes a first mode for passing a direct current to a second coil after turning off a first coil, and a second mode for passing an alternating current to the second coil after turning off the first coil.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: May 2, 2023
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Ryo Hirano, Tsunenori Nomaguchi, Chisato Kamiya, Junichi Katane
  • Publication number: 20230126577
    Abstract: Provided is a technique capable of shortening observation throughput of a sample. A transfer device 2 includes a holder 24 configured to hold a mesh MS on which a sample to be analyzed using a charged particle beam device 3 is mounted, a position information acquisition function configured to acquire first information about a positional relationship between the mesh MS and the holder 24, and a position information output function configured to output the first information to the charged particle beam device 3.
    Type: Application
    Filed: April 15, 2020
    Publication date: April 27, 2023
    Inventors: Naofumi KOBAYASHI, Kenichi NISHINAKA, Tsunenori NOMAGUCHI
  • Publication number: 20230063192
    Abstract: A semiconductor analysis system includes a machining device that machines semiconductor wafer to prepare a thin film sample for observation, a transmission electron microscope device that acquires a transmission electron microscope image of the thin film sample, and a host control device that controls the machining device and the transmission electron microscope device. The host control device evaluates the thin film sample based on the transmission electron microscope image, updates machining conditions based on an evaluation result of the thin film sample, and outputs the updated machining conditions to the machining device.
    Type: Application
    Filed: February 27, 2020
    Publication date: March 2, 2023
    Inventors: Yudai KUBO, Tsunenori NOMAGUCHI, Hiroyuki CHIBA
  • Publication number: 20230055155
    Abstract: A semiconductor analysis system includes a machining device that machines a semiconductor wafer to prepare a thin film sample for observation, a transmission electron microscope device that acquires a transmission electron microscope image of the thin film sample, and a host control device that controls the machining device and the transmission electron microscope device.
    Type: Application
    Filed: February 27, 2020
    Publication date: February 23, 2023
    Inventors: Tsunenori NOMAGUCHI, Yudai KUBO, Hiroyuki CHIBA
  • Publication number: 20220367144
    Abstract: A lamella 10 including an analysis portion 11 and a cutout portion 12 separated from the analysis portion 11 is produced. When a plurality of the lamellae 10 are transported to a lamella grid 20, the plurality of lamellae 10 are supported by a support portion 22 protruding from a surface of a substrate 21, and are mounted adjacent to each other in a Z direction. At this time, the cutout portion 12 prevents the analysis portion 11 from damage.
    Type: Application
    Filed: November 20, 2019
    Publication date: November 17, 2022
    Inventors: Atsushi SAWADA, Tsunenori NOMAGUCHI
  • Patent number: 11430630
    Abstract: The present invention realizes a composite charged particle beam apparatus capable of suppressing a leakage magnetic field from a pole piece forming an objective lens of an SEM with a simple structure. The charged particle beam apparatus according to the present invention obtains an ion beam observation image while passing a current to a first coil constituting the objective lens, and performs an operation of reducing the image shift by passing a current to a second coil with a plurality of current values, and determines a current to be passed to the second coil based on a difference between the operations.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: August 30, 2022
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Ryo Hirano, Tsunenori Nomaguchi, Chisato Kamiya, Junichi Katane
  • Publication number: 20220246385
    Abstract: As a device for correcting positive spherical aberration of an electromagnetic lens for a charged particle beam, a spherical aberration correction device combining a hole electrode and a ring electrode is known. In this spherical aberration correction device, when a voltage is applied between the hole electrode and the ring electrode, the focus of the charged particle beam device changes due to the convex lens effect generated in the hole electrode. Therefore, in a charged particle beam device including a charged particle beam source which generates a charged particle beam, a charged particle beam aperture having a ring shape, and a charged particle beam aperture power supply which applies a voltage to the charged particle beam aperture, the charged particle beam aperture power supply is configured to apply, to the charged particle beam aperture, a voltage having a polarity opposite to a polarity of charges of the charged particle beam.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Inventors: Tsunenori NOMAGUCHI, Shunichi MOTOMURA, Tadahiro KAWASAKI, Takeharu KATO, Ryuji YOSHIDA
  • Publication number: 20220238296
    Abstract: Provided is a charged particle beam apparatus capable of stably obtaining a spherical aberration correction effect. The charged particle beam apparatus includes: a charged particle beam aperture stop 121 and an electrode 122 that are arranged on an optical axis between the charged particle beam source 101 and the objective lens 105; and a power supply 108 that applies a voltage between the charged particle beam aperture stop 121 and the electrode 122, in which the voltage that is applied from the electrode to the charged particle beam aperture stop by the power supply is a voltage having a polarity opposite to a charge of the charged particle beam, the electrode 122 includes an annular aperture 205, and the charged particle beam aperture stop 121 includes a plurality of apertures 201 that are arranged at positions overlapping the annular aperture 205 of the electrode 122 when viewed in a direction Z along the optical axis.
    Type: Application
    Filed: May 15, 2019
    Publication date: July 28, 2022
    Inventors: Shunichi MOTOMURA, Tsunenori NOMAGUCHI
  • Publication number: 20220165536
    Abstract: A scanning electron beam apparatus which two-dimensionally scans a sample by an electron beam, to achieve high resolution even with a photoexcited electron source. The electron beam apparatus includes a photocathode including a substrate having a refractive index of more than 1.7 and a photoemissive film, a focusing lens configured to focus an excitation light toward the photocathode, an extractor electrode disposed facing the photocathode and configured to accelerate an electron beam generated from the photoemissive film by focusing the excitation light by the focusing lens and emitting the excitation light through the substrate, and an electron optics including a deflector configured to two-dimensionally scan a sample by the electron beam accelerated by the extractor electrode. For a spherical aberration of the focusing lens, a root mean square of the spherical aberration on the photoemissive film is equal to or less than 1/14 of a wavelength of the excitation light.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 26, 2022
    Inventors: Takashi Ohshima, Tatsuro Ide, Hideo Morishita, Yoichi Ose, Tsunenori Nomaguchi, Toshihide Agemura
  • Patent number: 11335532
    Abstract: As a device for correcting positive spherical aberration of an electromagnetic lens for a charged particle beam, a spherical aberration correction device combining a hole electrode and a ring electrode is known. In this spherical aberration correction device, when a voltage is applied between the hole electrode and the ring electrode, the focus of the charged particle beam device changes due to the convex lens effect generated in the hole electrode. Therefore, in a charged particle beam device including a charged particle beam source which generates a charged particle beam, a charged particle beam aperture having a ring shape, and a charged particle beam aperture power supply which applies a voltage to the charged particle beam aperture, the charged particle beam aperture power supply is configured to apply, to the charged particle beam aperture, a voltage having a polarity opposite to a polarity of charges of the charged particle beam.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 17, 2022
    Assignees: Hitachi High-Tech Corporation, Japan Fine Ceramics Center
    Inventors: Tsunenori Nomaguchi, Shunichi Motomura, Tadahiro Kawasaki, Takeharu Kato, Ryuji Yoshida
  • Patent number: 11268915
    Abstract: To provide, in observation of a sample that requires a movement between various devices, a charged particle beam device, a method for processing the sample, and an observation method which facilitate the movement between the devices. The charged particle beam device that processes an observation target on the sample using a charged particle beam includes: a sample stage on which the sample is placed; an observation unit configured to observe the observation target; and a writing unit configured to write information of the observation target in a writing position of the sample.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 8, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Tsunenori Nomaguchi, Hiromi Mise
  • Patent number: 11264201
    Abstract: A charged particle beam device includes: a charged particle beam source configured to generate a charged particle beam with which a sample is irradiated; a charged particle detection unit configured to detect a charged particle generated when the sample is irradiated with the charged particle beam; an intensity data generation unit configured to generate intensity data of the charged particle detected by the charged particle detection unit; a pulse-height value data generation unit configured to generate pulse-height value data of the charged particle detected by the charged particle detection unit; and an output unit configured to output a first image of the sample based on the intensity data and a second image of the sample based on the pulse-height value data.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: March 1, 2022
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Kazuo Ootsuga, Yuta Imai, Tsunenori Nomaguchi
  • Patent number: 11183359
    Abstract: When a charged particle beam aperture having an annular shape is used, since a charged particle beam directly above the optical axis having the highest current density in the charged particle beam is blocked, it is difficult to dispose the charged particle beam aperture at an optimal mounting position.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 23, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kenichi Nishinaka, Tsunenori Nomaguchi
  • Patent number: 11164716
    Abstract: When using a charged particle beam aperture having a ring shape in a charged particle beam device, the charged particle beam with the highest current density immediately above the optical axis, among the charged particle beams is blocked, so that it is difficult to dispose the charged particle beam aperture at the optimal mounting position. Therefore, in addition to the ring-shaped charged particle beam aperture, a hole-shaped charged particle beam aperture is provided, and it is possible to switch between the case where the ring-shaped charged particle beam aperture is disposed on the optical axis of the charged particle beam and the case where the hole-shaped charged particle beam aperture is disposed on the optical axis of the charged particle beam.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 2, 2021
    Assignees: Hitachi High-Tech Corporation, Japan Fine Ceramics Center
    Inventors: Shunichi Motomura, Tsunenori Nomaguchi, Tadahiro Kawasaki, Takeharu Kato, Ryuji Yoshida