Patents by Inventor Haruka Sasaki
Haruka Sasaki 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: 20240047176Abstract: An ion implantation method includes irradiating a wafer having a first temperature with a first ion beam such that a predetermined channeling condition is satisfied and irradiating the wafer having a second temperature different from the first temperature with a second ion beam such that the predetermined channeling condition is satisfied, after the irradiation of the first ion beam.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Yoji Kawasaki, Haruka Sasaki
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Patent number: 11830703Abstract: An ion implantation method includes irradiating a wafer having a first temperature with a first ion beam such that a predetermined channeling condition is satisfied and irradiating the wafer having a second temperature different from the first temperature with a second ion beam such that the predetermined channeling condition is satisfied, after the irradiation of the first ion beam.Type: GrantFiled: July 15, 2019Date of Patent: November 28, 2023Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO, LTD.Inventors: Yoji Kawasaki, Haruka Sasaki
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Patent number: 11710618Abstract: An ion implanter includes a high energy multistage linear acceleration unit for accelerating an ion beam. The high energy multistage linear acceleration unit includes high frequency accelerators in a plurality of stages provided along a beamline through which the ion beam travels, and electrostatic quadrupole lens devices in a plurality of stages provided along the beamline. The electrostatic quadrupole lens device in each of the stages includes a plurality of lens electrodes facing each other in a radial direction perpendicular to an axial direction, and disposed at an interval in a circumferential direction, an upstream side cover electrode covering a beamline upstream side of the plurality of lens electrodes and including a beam incident port, and a downstream side cover electrode covering a beamline downstream side of the plurality of lens electrodes and including a beam exiting port.Type: GrantFiled: March 1, 2022Date of Patent: July 25, 2023Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.Inventors: Haruka Sasaki, Kouji Inada, Hayao Kawai
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Publication number: 20220285127Abstract: An ion implanter includes a high energy multistage linear acceleration unit for accelerating an ion beam. The high energy multistage linear acceleration unit includes high frequency accelerators in a plurality of stages provided along a beamline through which the ion beam travels, and electrostatic quadrupole lens devices in a plurality of stages provided along the beamline. The electrostatic quadrupole lens device in each of the stages includes a plurality of lens electrodes facing each other in a radial direction perpendicular to an axial direction, and disposed at an interval in a circumferential direction, an upstream side cover electrode covering a beamline upstream side of the plurality of lens electrodes and including a beam incident port, and a downstream side cover electrode covering a beamline downstream side of the plurality of lens electrodes and including a beam exiting port.Type: ApplicationFiled: March 1, 2022Publication date: September 8, 2022Inventors: Haruka Sasaki, Kouji Inada, Hayao Kawai
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Publication number: 20220176642Abstract: A bonding method for bonding an adherend with a high-frequency dielectric heating adhesive sheet is provided. The adherend includes a fluorine-containing surface at least containing fluorine on a surface thereof. The high-frequency dielectric heating adhesive sheet includes a high-frequency dielectric adhesive layer including a thermoplastic resin and a dielectric filler. A surface free energy of the high-frequency dielectric adhesive layer is in a range from 15 mJ/m2 to 30 mJ/m2. A melting point of the high-frequency dielectric adhesive layer is in a range from 110 degrees C. to 300 degrees C. The bonding method includes bringing the fluorine-containing surface of the adherend into contact with the high-frequency dielectric adhesive layer and applying a high-frequency wave to the high-frequency dielectric adhesive layer to bond the high-frequency dielectric heating adhesive sheet to the fluorine-containing surface.Type: ApplicationFiled: March 16, 2020Publication date: June 9, 2022Inventors: Haruka SASAKI, Takuto AOKI, Naoki TAYA
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Patent number: 10854418Abstract: A mass analyzer includes a mass analyzing magnet that applies a magnetic field to ions extracted from an ion source to deflect the ions, a mass analyzing slit that is provided downstream of the mass analyzing magnet and allows an ion of a desired ion species among the deflected ions to selectively pass, and a lens device that is provided between the mass analyzing magnet and the mass analyzing slit and applies a magnetic field and/or an electric field to the ion beam to adjust the convergence or divergence of a ion beam. The mass analyzer changes a focal point of the ion beam in a predetermined adjustable range between an upstream side and a downstream side of the mass analyzing slit with the lens device to adjust mass resolution.Type: GrantFiled: November 21, 2018Date of Patent: December 1, 2020Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.Inventor: Haruka Sasaki
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Publication number: 20200027697Abstract: An ion implantation method includes irradiating a wafer having a first temperature with a first ion beam such that a predetermined channeling condition is satisfied and irradiating the wafer having a second temperature different from the first temperature with a second ion beam such that the predetermined channeling condition is satisfied, after the irradiation of the first ion beam.Type: ApplicationFiled: July 15, 2019Publication date: January 23, 2020Inventors: Yoji Kawasaki, Haruka Sasaki
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Patent number: 10395890Abstract: An ion implantation apparatus includes: a multistage linear acceleration unit including a plurality of stages of high-frequency resonators and a plurality of stages of focusing lenses; a first beam measuring unit disposed in the middle of the multistage linear acceleration unit and configured to allow passage of a beam portion adjacent to a center of a beam trajectory and measure a current intensity of another beam portion blocked by an electrode body outside a vicinity of the center of the beam trajectory; a second beam measuring unit disposed downstream of the multistage linear acceleration unit and configured to measure a current intensity of an ion beam exiting from the multistage linear acceleration unit; and a control device configured to adjust a control parameter of the plurality of stages of focusing lenses based on measurement results of the first and second beam measuring units.Type: GrantFiled: January 4, 2018Date of Patent: August 27, 2019Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.Inventor: Haruka Sasaki
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Patent number: 10361066Abstract: An ion implantation apparatus includes an ion source that is capable of generating a calibration ion beam including a multiply charged ion which has a known energy corresponding to an extraction voltage, an upstream beamline that includes amass analyzing magnet and a high energy multistage linear acceleration unit, an energy analyzing magnet, a beam energy measuring device that measures an energy of the calibration ion beam downstream of the energy analyzing magnet, and a calibration sequence unit that produces an energy calibration table representing a correspondence relation between the known energy and the energy of the calibration ion beam measured by the beam energy measuring device. An upstream beamline pressure is adjusted to a first pressure during an ion implantation process, and is adjusted to a second pressure higher than the first pressure while the energy calibration table is produced.Type: GrantFiled: February 28, 2018Date of Patent: July 23, 2019Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.Inventors: Haruka Sasaki, Katsushi Fujita
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Publication number: 20190157035Abstract: A mass analyzer includes a mass analyzing magnet that applies a magnetic field to ions extracted from an ion source to deflect the ions, a mass analyzing slit that is provided downstream of the mass analyzing magnet and allows an ion of a desired ion species among the deflected ions to selectively pass, and a lens device that is provided between the mass analyzing magnet and the mass analyzing slit and applies a magnetic field and/or an electric field to the ion beam to adjust the convergence or divergence of a ion beam. The mass analyzer changes a focal point of the ion beam in a predetermined adjustable range between an upstream side and a downstream side of the mass analyzing slit with the lens device to adjust mass resolution.Type: ApplicationFiled: November 21, 2018Publication date: May 23, 2019Inventor: Haruka Sasaki
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Publication number: 20180330920Abstract: An ion implantation apparatus includes an ion source that is capable of generating a calibration ion beam including a multiply charged ion which has a known energy corresponding to an extraction voltage, an upstream beamline that includes amass analyzing magnet and a high energy multistage linear acceleration unit, an energy analyzing magnet, a beam energy measuring device that measures an energy of the calibration ion beam downstream of the energy analyzing magnet, and a calibration sequence unit that produces an energy calibration table representing a correspondence relation between the known energy and the energy of the calibration ion beam measured by the beam energy measuring device. An upstream beamline pressure is adjusted to a first pressure during an ion implantation process, and is adjusted to a second pressure higher than the first pressure while the energy calibration table is produced.Type: ApplicationFiled: February 28, 2018Publication date: November 15, 2018Inventors: Haruka Sasaki, Katsushi Fujita
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Publication number: 20180197716Abstract: An ion implantation apparatus includes: a multistage linear acceleration unit including a plurality of stages of high-frequency resonators and a plurality of stages of focusing lenses; a first beam measuring unit disposed in the middle of the multistage linear acceleration unit and configured to allow passage of a beam portion adjacent to a center of a beam trajectory and measure a current intensity of another beam portion blocked by an electrode body outside a vicinity of the center of the beam trajectory; a second beam measuring unit disposed downstream of the multistage linear acceleration unit and configured to measure a current intensity of an ion beam exiting from the multistage linear acceleration unit; and a control device configured to adjust a control parameter of the plurality of stages of focusing lenses based on measurement results of the first and second beam measuring units.Type: ApplicationFiled: January 4, 2018Publication date: July 12, 2018Inventor: Haruka Sasaki
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Patent number: 9502210Abstract: An ion implanter includes: a beam deflector that deflects an ion beam passing through a previous stage beam path and outputs the beam to pass through a subsequent stage beam path toward a wafer; a beam filter slit that partially shields the beam traveling through the subsequent stage beam path and allows passage of a beam component having a predetermined trajectory toward the wafer; a dose cup that is disposed between the beam deflector and the beam filter slit and measures a part of the beam exiting from the beam deflector as a beam current; and a trajectory limiting mechanism that is disposed between the beam deflector and the dose cup and prevents a beam component having a trajectory deviated from the predetermined trajectory from being incident to a measurement region of the dose cup.Type: GrantFiled: August 7, 2015Date of Patent: November 22, 2016Assignee: Sumitomo Heavy Industries Ion Technology Co., Ltd.Inventors: Makoto Sano, Mitsukuni Tsukihara, Haruka Sasaki, Kouji Inada
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Patent number: 9390890Abstract: A high-energy ion implanter includes a high-energy multi-stage linear acceleration unit that accelerates an ion beam so as to generate a high-energy ion beam, a deflection unit that changes the direction of the high-energy ion beam toward a semiconductor wafer, and a beam transportation unit that transports the deflected high-energy ion beam to the wafer. The beam transportation unit includes a beam shaper, a high-energy beam scanner, a high-energy electric field type beam collimator, and a high-energy electric field type final energy filter.Type: GrantFiled: May 29, 2014Date of Patent: July 12, 2016Assignee: Sumitomo Heavy Industries Ion Technology Co., Ltd.Inventors: Mitsuaki Kabasawa, Kazuhiro Watanabe, Haruka Sasaki, Kouji Inada
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Patent number: 9355847Abstract: A high-energy ion implanter includes: a beam generation unit that includes an ion source and a mass spectrometer; a radio frequency multi-stage linear acceleration unit; a deflection unit that includes a magnetic field type energy analysis device for filtering ions by a momentum; a beam transportation line unit; and a substrate processing/supplying unit. In this apparatus, an electric field type final energy filter that deflects a high-energy scan beam in the vertical direction by an electric field is inserted between the electric field type beam collimator and the wafer in addition to the magnetic field type mass spectrometer and the magnetic field type energy analysis device as momentum filters and the radio frequency multi-stage linear acceleration unit as a velocity filter.Type: GrantFiled: May 23, 2014Date of Patent: May 31, 2016Assignee: Sumitomo Heavy Industries Ion Technology Co., Ltd.Inventors: Mitsuaki Kabasawa, Kazuhiro Watanabe, Haruka Sasaki, Kouji Inada, Makoto Sano
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Patent number: 9343262Abstract: An ion implantation apparatus includes a beam parallelizing unit and a third power supply unit. The beam parallelizing unit includes an acceleration lens, and a deceleration lens disposed adjacent to the acceleration lens in an ion beam transportation direction. The third power supply unit operates the beam parallelizing unit under one of a plurality of energy settings. The plurality of energy settings includes a first energy setting suitable for transport of a low energy ion, and a second energy setting suitable for transport of a high energy ion beam. The third power supply unit is configured to generate a potential difference in at least the acceleration lens under the second energy setting, and generate a potential difference in at least the deceleration lens under the first energy setting. A curvature of the deceleration lens is smaller than a curvature of the acceleration lens.Type: GrantFiled: August 26, 2014Date of Patent: May 17, 2016Assignee: Sumitomo Heavy Industries Ion Technology Co., Ltd.Inventors: Takanori Yagita, Mitsuaki Kabasawa, Haruka Sasaki
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Patent number: 9343263Abstract: A beam energy measuring device in an ion implanter includes a parallelism measuring unit that measures a parallelism of an ion beam at a downstream of a beam collimator of the ion implanter and an energy calculating unit that calculates an energy of the ion beam from the measured parallelism. The ion implanter may further include a control unit that controls a high energy multistage linear acceleration unit based on the measured energy of the ion beam so that the ion beam has a target energy.Type: GrantFiled: March 12, 2015Date of Patent: May 17, 2016Assignee: Sumitomo Heavy Industries Ion Technology Co., Ltd.Inventors: Haruka Sasaki, Kazuhiro Watanabe, Hiroyuki Kariya
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Publication number: 20160042915Abstract: An ion implanter includes: a beam deflector that deflects an ion beam passing through a previous stage beam path and outputs the beam to pass through a subsequent stage beam path toward a wafer; a beam filter slit that partially shields the beam traveling through the subsequent stage beam path and allows passage of a beam component having a predetermined trajectory toward the wafer; a dose cup that is disposed between the beam deflector and the beam filter slit and measures a part of the beam exiting from the beam deflector as a beam current; and a trajectory limiting mechanism that is disposed between the beam deflector and the dose cup and prevents a beam component having a trajectory deviated from the predetermined trajectory from being incident to a measurement region of the dose cup.Type: ApplicationFiled: August 7, 2015Publication date: February 11, 2016Inventors: Makoto Sano, Mitsukuni Tsukihara, Haruka Sasaki, Kouji Inada
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Publication number: 20150262787Abstract: A beam energy measuring device in an ion implanter includes a parallelism measuring unit that measures a parallelism of an ion beam at a downstream of a beam collimator of the ion implanter and an energy calculating unit that calculates an energy of the ion beam from the measured parallelism. The ion implanter may further include a control unit that controls a high energy multistage linear acceleration unit based on the measured energy of the ion beam so that the ion beam has a target energy.Type: ApplicationFiled: March 12, 2015Publication date: September 17, 2015Inventors: Haruka Sasaki, Kazuhiro Watanabe, Hiroyuki Kariya
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Patent number: 8987690Abstract: A high-energy ion implanter includes a beam generation unit that includes an ion source and a mass analyzer, a high-energy multi-stage linear acceleration unit, a high-energy beam deflection unit that changes the direction of a high-energy ion beam toward a wafer, and a beam transportation unit that transports the deflected high-energy ion beam to the wafer. The beam transportation unit includes a beam shaper, a high-energy beam scanner, a high-energy beam collimator, and a high-energy final energy filter. Further, the high-energy beam collimator is an electric field type beam collimator that collimates a scan beam while performing the acceleration and the deceleration of a high-energy beam by an electric field.Type: GrantFiled: May 27, 2014Date of Patent: March 24, 2015Assignee: SEN CorporationInventors: Mitsuaki Kabasawa, Kazuhiro Watanabe, Haruka Sasaki, Kouji Kato, Hitoshi Ando