Patents by Inventor Tsutomu Karimata
Tsutomu Karimata 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).
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Publication number: 20240274394Abstract: Provided is an insulating structure used in a vacuum for a charged particle beam device, the insulating structure including: an anode; a cathode facing the anode; and an insulator disposed between the anode and the cathode, wherein the insulator has: an insulator flat surface; and an insulator convex portion protruding from the insulator flat surface, the cathode has: a cathode flat surface; and a cathode concave portion which is recessed from the cathode flat surface and into which the insulator convex portion is fitted; the insulator flat surface and the cathode flat surface are not in contact with each other; and an outer surface of the insulator convex portion and an inner surface of the cathode concave portion are not in contact with each other.Type: ApplicationFiled: February 9, 2024Publication date: August 15, 2024Inventors: Yasushi TOMA, Tsutomu KARIMATA, Sadashi AOTA, Shinsetsu FUJISAWA
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Publication number: 20230393085Abstract: Provided is a method of evaluating a deviation of a trajectory of a primary electron beam in a primary optical system in an electron beam observation device including the primary optical system that irradiates a sample with the primary electron beam including a plurality of primary electrons and a secondary optical system that detects, by a detector, a secondary electron beam including a plurality of secondary electrons emitted from the sample irradiated with the primary electron beam.Type: ApplicationFiled: May 31, 2023Publication date: December 7, 2023Inventors: Kenji WATANABE, Takeshi MURAKAMI, Yasushi TOMA, Ryo TAJIMA, Tsutomu KARIMATA
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Patent number: 11545335Abstract: A vacuum connection mechanism includes: a main body part having a first opening and a first sub opening opened symmetrically in a first direction, and a second opening and a second sub opening opened symmetrically in a second direction; a first bellows connected to the first opening and to the end of which a first flange is provided; a first sub bellows connected to the first sub opening and to the end of which a first blind flange is provided; a first supporting member coupling the first flange and the first blind flange; a second bellows connected to the second opening and to the end of which a second flange is provided; a second sub bellows connected to the second sub opening and to the end of which a second blind flange is provided; and a second supporting member coupling the second flange and the second blind flange.Type: GrantFiled: February 27, 2019Date of Patent: January 3, 2023Assignee: EBARA CORPORATIONInventors: Takashi Ohara, Tsutomu Karimata
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Patent number: 11515118Abstract: Provided is an electron beam irradiation apparatus including: an aligner configured to perform an alignment of an electron beam by deflecting the electron beam; a deflector having a plurality of electrodes and configured to deflect the electron beam after passing through the aligner; and an adjuster configured to adjust deflection caused by the aligner, wherein the adjuster is configured to perform, on each of the plurality of electrodes, detecting an image of the electron beam by applying a test voltage to one of the plurality of electrodes and applying a reference voltage to the other electrodes, determine a position shift of the electron beam based on each position of the image of the electron beam corresponding to each electrode, and adjust deflection of the aligner so as to cancel the position shift of the electron beam.Type: GrantFiled: February 19, 2020Date of Patent: November 29, 2022Assignee: EBARA CORPORATIONInventors: Kenji Watanabe, Shinichi Okada, Ryo Tajima, Tsutomu Karimata
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Patent number: 11217421Abstract: An adjustment method for adjusting a path of an electron beam passing through an electron beam device including at least one unit having at least one lens and at least one aligner electrode, and a detector configured to detect the electron beam, the method including: a step of measuring, by a coordinate measuring machine, an assembly tolerance for each of a plurality of the units constituting the electron beam device; a step of determining a shift amount of the electron beam at a position of the at least one of the lenses; a step of determining an electrode condition for each of a plurality of the aligner electrodes included in the units in a manner such that a shift amount of the electron beam is to be the determined shift amount; and a step of setting each of the aligner electrodes to the corresponding determined electrode condition.Type: GrantFiled: May 20, 2020Date of Patent: January 4, 2022Assignee: EBARA CORPORATIONInventors: Takehide Hayashi, Ryo Tajima, Tatsuya Kohama, Kenji Watanabe, Tsutomu Karimata
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Patent number: 11164697Abstract: A coil-integrated-type yoke for realizing a deflector that can accurately deflect an orbit of an electron beam and a manufacturing method thereof are provided. There is provided a manufacturing method of a coil-integrated-type yoke, the manufacturing method including: a step of sequentially inserting a molding agent, a coil, and a spacer into a groove heading from a first surface toward a second surface of the yoke; and a step of polishing the first surface of the yoke and the spacer together.Type: GrantFiled: April 4, 2018Date of Patent: November 2, 2021Assignee: EBARA CORPORATIONInventors: Keisuke Matsushima, Tsutomu Karimata
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Patent number: 10900573Abstract: A gate valve 1 includes: a plate 2 having an opening portion 9; a plate 3 located opposite to the plate 2; a guide space 5 formed between the plates 2, 3; and a plate 6 provided in the space 5. The plate 6 is slidable along a direction in which an opening portion 11 is offset from the opening portion 9 in the space 5 in a state in which the plate 6 is pressed by the pressing portion 13 and separated from the plate 2, and a position of the plate 6 is fixed with respect to the plate 2 in the space 5 in a state in which the plate 6 is pressed by the pressing portion 16 and is in contact with the plate 2. The pressing portions 13, 16 each have a bellows structure formed by diffusion-bonding metal plates 18 and 19 to each other.Type: GrantFiled: July 15, 2019Date of Patent: January 26, 2021Assignee: EBARA CORPORATIONInventor: Tsutomu Karimata
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Publication number: 20210012997Abstract: An adjustment method for adjusting a path of an electron beam passing through an electron beam device including at least one unit having at least one lens and at least one aligner electrode, and a detector configured to detect the electron beam, the method including: a step of measuring, by a coordinate measuring machine, an assembly tolerance for each of a plurality of the units constituting the electron beam device; a step of determining a shift amount of the electron beam at a position of the at least one of the lenses; a step of determining an electrode condition for each of a plurality of the aligner electrodes included in the units in a manner such that a shift amount of the electron beam is to be the determined shift amount; and a step of setting each of the aligner electrodes to the corresponding determined electrode condition.Type: ApplicationFiled: May 20, 2020Publication date: January 14, 2021Inventors: Takehide HAYASHI, Ryo TAJIMA, Tatsuya KOHAMA, Kenji WATANABE, Tsutomu KARIMATA
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Publication number: 20200273658Abstract: Provided is an electron beam irradiation apparatus including: an aligner configured to perform an alignment of an electron beam by deflecting the electron beam; a deflector having a plurality of electrodes and configured to deflect the electron beam after passing through the aligner; and an adjuster configured to adjust deflection caused by the aligner, wherein the adjuster is configured to perform, on each of the plurality of electrodes, detecting an image of the electron beam by applying a test voltage to one of the plurality of electrodes and applying a reference voltage to the other electrodes, determine a position shift of the electron beam based on each position of the image of the electron beam corresponding to each electrode, and adjust deflection of the aligner so as to cancel the position shift of the electron beam.Type: ApplicationFiled: February 19, 2020Publication date: August 27, 2020Inventors: Kenji WATANABE, Shinichi OKADA, Ryo TAJIMA, Tsutomu KARIMATA
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Publication number: 20200066477Abstract: A coil-integrated-type yoke for realizing a deflector that can accurately deflect an orbit of an electron beam and a manufacturing method thereof are provided. There is provided a manufacturing method of a coil-integrated-type yoke, the manufacturing method including: a step of sequentially inserting a molding agent, a coil, and a spacer into a groove heading from a first surface toward a second surface of the yoke; and a step of polishing the first surface of the yoke and the spacer together.Type: ApplicationFiled: April 4, 2018Publication date: February 27, 2020Inventors: Keisuke MATSUSHIMA, Tsutomu KARIMATA
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Publication number: 20200027686Abstract: A gate valve 1 includes: a plate 2 having an opening portion 9; a plate 3 located opposite to the plate 2; a guide space 5 formed between the plates 2, 3; and a plate 6 provided in the space 5. The plate 6 is slidable along a direction in which an opening portion 11 is offset from the opening portion 9 in the space 5 in a state in which the plate 6 is pressed by the pressing portion 13 and separated from the plate 2, and a position of the plate 6 is fixed with respect to the plate 2 in the space 5 in a state in which the plate 6 is pressed by the pressing portion 16 and is in contact with the plate 2. The pressing portions 13, 16 each have a bellows structure formed by diffusion-bonding metal plates 18 and 19 to each other.Type: ApplicationFiled: July 15, 2019Publication date: January 23, 2020Inventor: Tsutomu KARIMATA
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Publication number: 20190279839Abstract: A vacuum connection mechanism includes: a main body part having a first opening and a first sub opening opened symmetrically in a first direction, and a second opening and a second sub opening opened symmetrically in a second direction; a first bellows connected to the first opening and to the end of which a first flange is provided; a first sub bellows connected to the first sub opening and to the end of which a first blind flange is provided; a first supporting member coupling the first flange and the first blind flange; a second bellows connected to the second opening and to the end of which a second flange is provided; a second sub bellows connected to the second sub opening and to the end of which a second blind flange is provided; and a second supporting member coupling the second flange and the second blind flange.Type: ApplicationFiled: February 27, 2019Publication date: September 12, 2019Inventors: Takashi OHARA, Tsutomu KARIMATA
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Patent number: 10157722Abstract: An inspection device for inspecting a surface of an inspection object using a beam includes a beam generator capable of generating one of either charge particles or an electromagnetic wave as a beam, a primary optical system capable of guiding and irradiating the beam to the inspection object supported within a working chamber, a secondary optical system capable of including a first movable numerical aperture and a first detector which detects secondary charge particles generated from the inspection object, the secondary charge particles passing through the first movable numerical aperture, an image processing system capable of forming an image based on the secondary charge particles detected by the first detector; and a second detector arranged between the first movable numerical aperture and the first detector and which detects a location and shape at a cross over location of the secondary charge particles generated from the inspection object.Type: GrantFiled: June 28, 2016Date of Patent: December 18, 2018Assignee: EBARA CORPORATIONInventors: Masahiro Hatakeyama, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Yoshihiko Naito, Yasushi Toma, Tsutomu Karimata, Takehide Hayashi, Kiwamu Tsukamoto, Tatsuya Kohama, Noboru Kobayashi
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Patent number: 9601302Abstract: An inspection apparatus capable of facilitating reduction in cost of the apparatus is provided. The inspection apparatus includes: beam generation means for generating any of charged particles and electromagnetic waves as a beam; a primary optical system that guides the beam into an inspection object held on a movable stage in a working chamber and irradiates the inspection object with the beam; a secondary optical system that detects secondary charged particles occurring from the inspection object; and an image processing system that forms an image on the basis of the detected secondary charged particles. The inspection apparatus further includes: a linear motor that drives the movable stage; and a Helmholtz coil that causes a magnetic field for canceling a magnetic field caused by the linear motor when the movable stage is driven.Type: GrantFiled: July 30, 2015Date of Patent: March 21, 2017Assignee: EBARA CORPORATIONInventors: Shoji Yoshikawa, Kiwamu Tsukamoto, Takeshi Murakami, Masahiro Hatakeyama, Tsutomu Karimata
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Publication number: 20160307726Abstract: An inspection device for inspecting a surface of an inspection object using a beam includes a beam generator capable of generating one of either charge particles or an electromagnetic wave as a beam, a primary optical system capable of guiding and irradiating the beam to the inspection object supported within a working chamber, a secondary optical system capable of including a first movable numerical aperture and a first detector which detects secondary charge particles generated from the inspection object, the secondary charge particles passing through the first movable numerical aperture, an image processing system capable of forming an image based on the secondary charge particles detected by the first detector; and a second detector arranged between the first movable numerical aperture and the first detector and which detects a location and shape at a cross over location of the secondary charge particles generated from the inspection object.Type: ApplicationFiled: June 28, 2016Publication date: October 20, 2016Applicant: EBARA CORPORATIONInventors: Masahiro Hatakeyama, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Yoshihiko Naito, Yasushi Toma, Tsutomu Karimata, Takehide Hayashi, Kiwamu Tsukamoto, Tatsuya Kohama, Noboru Kobayashi
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Patent number: 9406480Abstract: A substrate is irradiated by primary electrons and secondary electrons generated from the substrate are detected by a detector. A reference die is placed on the stage to obtain a pattern matching template image including feature coordinates of the reference die. A pattern matching is performed with an arbitrary die in a row or column including the reference die using the template image to obtain feature coordinates of the arbitrary die. An angle of misalignment is calculated between the direction of the row or column including the reference die and one of the directions of movement of the substrate on the basis of the feature coordinates of the arbitrary die and those of the reference die. The stage is rotated to correct the angle of misalignment to conform the direction of the row or column including the reference die with the one of the directions of movement of the substrate.Type: GrantFiled: January 14, 2015Date of Patent: August 2, 2016Assignee: EBARA CORPORATIONInventors: Nobuharu Noji, Tohru Satake, Hirosi Sobukawa, Toshifumi Kimba, Masahiro Hatakeyama, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Kenichi Suematsu, Yutaka Tabe, Ryo Tajima, Keiichi Tohyama
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Patent number: 9368314Abstract: An inspection apparatus by an electron beam comprises: an electron-optical device 70 having an electron-optical system for irradiating the object with a primary electron beam from an electron beam source, and a detector for detecting the secondary electron image projected by the electron-optical systems; a stage system 50 for holding and moving the object relative to the electron-optical system; a mini-environment chamber 20 for supplying a clean gas to the object to prevent dust from contacting the object; a working chamber 31 for accommodating the stage device, the working chamber being controllable so as to have a vacuum atmosphere; at least two loading chambers 41, 42 disposed between the mini-environment chamber and the working chamber, adapted to be independently controllable so as to have a vacuum atmosphere; and a loader 60 for transferring the object to the stage system through the loading chambers.Type: GrantFiled: June 30, 2014Date of Patent: June 14, 2016Assignee: EBARA CORPORATIONInventors: Mamoru Nakasuji, Nobuharu Noji, Tohru Satake, Masahiro Hatakeyama, Toshifumi Kimba, Hirosi Sobukawa, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Shin Oowada, Mutsumi Saito, Yuichiro Yamazaki, Takamitsu Nagai, Ichirota Nagahama
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Publication number: 20150340193Abstract: An inspection apparatus capable of facilitating reduction in cost of the apparatus is provided. The inspection apparatus includes: beam generation means for generating any of charged particles and electromagnetic waves as a beam; a primary optical system that guides the beam into an inspection object held on a movable stage in a working chamber and irradiates the inspection object with the beam; a secondary optical system that detects secondary charged particles occurring from the inspection object; and an image processing system that forms an image on the basis of the detected secondary charged particles. The inspection apparatus further includes: a linear motor that drives the movable stage; and a Helmholtz coil that causes a magnetic field for canceling a magnetic field caused by the linear motor when the movable stage is driven.Type: ApplicationFiled: July 30, 2015Publication date: November 26, 2015Inventors: Shoji YOSHIKAWA, Kiwamu TSUKAMOTO, Takeshi MURAKAMI, Masahiro HATAKEYAMA, Tsutomu KARIMATA
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Patent number: 9134261Abstract: An inspection apparatus capable of facilitating reduction in cost of the apparatus is provided. The inspection apparatus includes: beam generation means for generating any of charged particles and electromagnetic waves as a beam; a primary optical system that guides the beam into an inspection object held on a movable stage in a working chamber and irradiates the inspection object with the beam; a secondary optical system that detects secondary charged particles occurring from the inspection object; and an image processing system that forms an image on the basis of the detected secondary charged particles. The inspection apparatus further includes: a linear motor that drives the movable stage; and a Helmholtz coil that causes a magnetic field for canceling a magnetic field caused by the linear motor when the movable stage is driven.Type: GrantFiled: April 21, 2014Date of Patent: September 15, 2015Assignee: EBARA CORPORATIONInventors: Shoji Yoshikawa, Kiwamu Tsukamoto, Takeshi Murakami, Masahiro Hatakeyama, Tsutomu Karimata
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Publication number: 20150122993Abstract: A substrate is irradiated by primary electrons and secondary electrons generated from the substrate are detected by a detector. A reference die is placed on the stage to obtain a pattern matching template image including feature coordinates of the reference die. A pattern matching is performed with an arbitrary die in a row or column including the reference die using the template image to obtain feature coordinates of the arbitrary die. An angle of misalignment is calculated between the direction of the row or column including the reference die and one of the directions of movement of the substrate on the basis of the feature coordinates of the arbitrary die and those of the reference die. The stage is rotated to correct the angle of misalignment to conform the direction of the row or column including the reference die with the one of the directions of movement of the substrate.Type: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Applicant: EBARA CORPORATIONInventors: Nobuharu Noji, Tohru Satake, Hirosi Sobukawa, Toshifumi Kimba, Masahiro Hatakeyama, Shoji Yoshikawa, Takeshi Murakami, Kenji Watanabe, Tsutomu Karimata, Kenichi Suematsu, Yutaka Tabe, Ryo Tajima, Keiichi Tohyama