Patents by Inventor Tatsuya Asahata

Tatsuya Asahata 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: 9318303
    Abstract: A charged particle beam apparatus includes an electron beam irradiation unit that irradiates a sample with electron beams along a first irradiation axis. A rotation stage holds the sample and has a rotation axis in a direction perpendicular to the first irradiation axis. An ion beam irradiation unit irradiates the sample with ion beams along a second irradiation axis that is substantially parallel to the rotation axis to process the sample into a needle shape. A detection unit detects at least one of charged particles and X rays generated via the sample by the irradiation with the ion beams or the electron beams, and a gaseous ion beam irradiation unit irradiates the sample with gaseous ion beams.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: April 19, 2016
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Xin Man, Tatsuya Asahata, Atsushi Uemoto
  • Publication number: 20160093467
    Abstract: A charged particle beam apparatus includes a stage for fixing a sample, a driving mechanism for driving the stage, a focused ion beam column, an electron beam column, a detector that detects a secondary charged particle emitted from the sample irradiated with a charged particle beam, a gas supplying device that supplies gas for forming a deposition film on a surface of the sample, and a control device that generates image data indicating the position distribution of the secondary charged particle detected by the detector. The control device irradiates the sample with the electron beam prior to irradiating the sample with a focused ion beam, recognizes an alignment mark provided in the sample in the image data by the electron beam, and performs positioning of an irradiation region of the sample using the alignment mark.
    Type: Application
    Filed: September 21, 2015
    Publication date: March 31, 2016
    Inventors: Shota TORIKAWA, Tatsuya ASAHATA, Atsushi UEMOTO, Makoto SATO
  • Publication number: 20160064187
    Abstract: Problem To automatically repeat an operation of extracting and transferring a sample piece, which is formed by processing a sample using an ion beam, to a sample piece holder. Solution A charged particle beam includes: a computer that controls a needle actuating mechanism so as to approach a needle to a sample piece using a template formed from an absorbed current image obtained by irradiating the needle with a charged particle beam and a tip coordinate of the needle acquired from a secondary electron image obtained by irradiating the needle with the charged particle beam.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 3, 2016
    Inventors: Satoshi TOMIMATSU, Makoto SATO, Atsushi UEMOTO, Tatsuya ASAHATA, Yo YAMAMOTO
  • Patent number: 9275827
    Abstract: A charged particle beam apparatus includes: a charged particle beam column; a detector configured to detect secondary charged particles; an image processor; a display device; a needle arranged in an irradiation area of charged particle beam; a needle actuator; a user interface; and a controller configured to control the needle actuator to actuate the needle in accordance with a target position that is set by the user interface. The controller controls the needle actuator to move the needle to track a change of the target position that is set by the user interface.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: March 1, 2016
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Atsushi Uemoto, Tatsuya Asahata, Hidekazu Suzuki, Yo Yamamoto
  • Patent number: 9269539
    Abstract: A focused ion beam apparatus includes: a focused ion beam tube configured to irradiate a focused ion beam onto a sample; a detector configured to detect secondary particles generated from the sample due to the irradiation and to output detection information regarding detected secondary particles; an image forming unit configured to form an observation image of the sample based on the detection information; a storage unit configured to store positional relation between a first processing area set on an observation image of a first sample and a cross-section surface of the first sample; and a processing area setting unit configured to automatically set a second processing area on an observation image of a second sample based on the positional relation stored in the storage unit and a position of a cross-section surface of the second sample on the observation image of the second sample.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: February 23, 2016
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Tatsuya Asahata, Hidekazu Suzuki, Makoto Sato
  • Patent number: 9245713
    Abstract: A charged particle beam apparatus for processing a tip end portion of a sample into a needle shape, includes an ion beam irradiation unit that irradiates the tip end portion with ion beams, an electron beam irradiation unit that irradiates the tip end portion with electron beams, a secondary electron detection unit that detects secondary electrons generated at the tip end portion by the irradiation with the electron beams, and an EBSD detection unit that detects diffracted electrons generated at the tip end portion by the irradiation with the electron beams.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 26, 2016
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Xin Man, Tatsuya Asahata, Atsushi Uemoto
  • Patent number: 9218937
    Abstract: A charged particle beam apparatus includes: a charged particle beam column configured to irradiate an irradiation target with a charged particle beam; a detector configured to detect secondary charged particles emitted from the irradiation target by the irradiation of the charged particle beam; a needle arranged in an irradiation area of the charged particle beam; a needle actuator configured to actuate the needle; and a controller configured to control the needle actuator to actuate the needle along a movement route that is configured by a preset target position and preset way points. The controller controls the needle actuator to set an actuating direction of the needle for each of the way points.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: December 22, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Atsushi Uemoto, Tatsuya Asahata, Hidekazu Suzuki, Yo Yamamoto
  • Patent number: 9218939
    Abstract: A focused ion beam system includes a focused ion beam irradiation mechanism which irradiates a sample, on which a protective film is formed, with a focused ion beam from above the sample, a processing control unit which performs a removal process on both sides of a region to be a thin piece portion of the sample by the focused ion beam and sequentially forms observation surfaces parallel to an irradiation direction of the focused ion beam so as to achieve the thin piece portion, and an observation surface image generation unit which generates an observation surface image. The processing control unit terminates the removal process when a height of the protective film in the irradiation direction of the focused ion beam becomes a predetermined threshold value or less in the observation surface image.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: December 22, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Tatsuya Asahata, Shota Torikawa
  • Patent number: 9214316
    Abstract: A composite charged particle beam apparatus comprises an FIB column having an ion beam irradiation axis and an SEM column having an electron beam irradiation axis, the FIB and SEM columns being arranged relative to one another so that the beam irradition axes intersect with each other substantially at a right angle. A sample stage is provided for mounting a sample, and a detector detects secondary particles generated from the sample when irradiated with the ion beam or the electron beam. An observation image formation portion forms an FIB image and an SEM image based on a detection signal of the detector. A display portion displays the FIB image and the SEM image in which a horizontal direction of the sample in the FIB image and said horizontal direction of the sample in the SEM image are the same thereby making it possible for an operator to easily comprehend the positional relationship of the observation image of the sample.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: December 15, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Yo Yamamoto, Xin Man, Tatsuya Asahata
  • Patent number: 9202671
    Abstract: A charged particle beam apparatus includes a sample stage, a focused ion beam column, a scattered electron detector that detects backscattered electrons generated from a cross-section of a sample, a crystal orientation information generation unit that generates crystal orientation information on a predetermined region of the cross-section, and an angle calculation unit that calculates attachment angles of the sample stage, corresponding to a direction of the cross-section. In response to receiving input of information indicating that the crystal orientation information on the region displayed on a display unit is changed to aimed second crystal orientation information, the angle calculation unit calculates the attachment angles corresponding to the direction of the cross-section for generating the second crystal orientation information, and the focused ion beam column performs etching processing on the cross-section at the calculated attachment angles.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: December 1, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Xin Man, Atsushi Uemoto, Tatsuya Asahata
  • Patent number: 9190243
    Abstract: A composite charged particle beam apparatus includes a FIB column for irradiating a thin sample with a FIB and a GIB column for irradiating the thin sample with a GIB. The thin sample is placed on a sample stage, and a tilt unit tilts the thin sample about a tilt axis of the sample stage, the tilt axis being orthogonal to the FIB irradiation axis and being located inside a plane formed by the FIB irradiation axis and the GIB irradiation axis. A tilt sample holder is mounted on the sample stage and fixes the thin sample such that a cross-sectional surface of the thin sample is tilted at a constant angle with respect to the GIB irradiation axis and the azimuth angle of the GIB column can be changed by rotation of the sample stage.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: November 17, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Tatsuya Asahata, Hidekazu Suzuki, Shota Torikawa
  • Publication number: 20150270102
    Abstract: A focused ion beam apparatus includes: a focused ion beam tube configured to irradiate a focused ion beam onto a sample; a detector configured to detect secondary particles generated from the sample due to the irradiation and to output detection information regarding detected secondary particles; an image forming unit configured to form an observation image of the sample based on the detection information; a storage unit configured to store positional relation between a first processing area set on an observation image of a first sample and a cross-section surface of the first sample; and a processing area setting unit configured to automatically set a second processing area on an observation image of a second sample based on the positional relation stored in the storage unit and a position of a cross-section surface of the second sample on the observation image of the second sample.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 24, 2015
    Inventors: Tatsuya ASAHATA, Hidekazu SUZUKI, Makoto SATO
  • Publication number: 20150270096
    Abstract: A charged particle beam apparatus is provided with a controller configured to control other components and perform operations including: an irradiating operation to irradiate a first position of a sample with a charged particle beam while gradually changing a scan range of the charged particle beam to move from a first position; a first image acquiring operation to acquire an image of each portion where the charged particle beam moves; an indicator forming operation to form an indicator at a second position by the charged particle beam when the scan range of the charged particle beam reaches the second position; a second image acquiring operation to acquire an image of the second position in a state where the indicator is formed; and an adjusting operation to adjust relative position between the stage and the scan range of the charged particle beam.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 24, 2015
    Inventors: Makoto SATO, Tatsuya ASAHATA, Masahiro KIYOHARA, Ikuko NAKATANI
  • Publication number: 20150262788
    Abstract: A cross-section processing and observation method performed by a cross-section processing and observation apparatus comprises a cross-section processing step of forming a cross-section by irradiating a sample with an ion beam; a cross-section observation step of obtaining an observation image of the cross-section by irradiating the cross-section with an electron beam; and repeating the cross-section processing step and the cross-section observation step so as to obtain observation images of a plurality of cross-sections. In a case where Energy Dispersive X-ray Spectrometry (EDS) measurement of the cross-section is performed and an X-ray of a specified material or of a non-specified material that is different from a pre-specified material is detected, an irradiation condition of the ion beam is changed so as to obtain observation images of a plurality of cross-sections of the specified material, and the cross-section processing and observation of the specified material is performed.
    Type: Application
    Filed: June 2, 2015
    Publication date: September 17, 2015
    Inventors: Atsushi UEMOTO, Xin MAN, Tatsuya ASAHATA
  • Patent number: 9111717
    Abstract: An ion beam apparatus includes an ion source configured to emit an ion beam, a condenser lens electrode that condenses the ion beam, and a condenser lens power source configured to apply a voltage to the condenser lens electrode. A storage portion stores a first voltage value, a second voltage value, a third voltage value, and a fourth voltage value. A control portion retrieves the third voltage value from the storage portion and sets the retrieved third voltage value to the condenser lens power source when an observation mode is switched to a wide-range observation mode, and retrieves the fourth voltage value from the storage portion and sets the retrieved fourth voltage value to the condenser lens power source when a processing mode is switched to the wide-range observation mode.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: August 18, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Tatsuya Asahata, Yasuhiko Sugiyama, Hiroshi Oba
  • Publication number: 20150228451
    Abstract: A charged particle beam apparatus includes: a charged particle beam column configured to irradiate an irradiation target with a charged particle beam; a detector configured to detect secondary charged particles emitted from the irradiation target by the irradiation of the charged particle beam; a needle arranged in an irradiation area of the charged particle beam; a needle actuator configured to actuate the needle; and a controller configured to control the needle actuator to actuate the needle along a movement route that is configured by a preset target position and preset way points. The controller controls the needle actuator to set an actuating direction of the needle for each of the way points.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Atsushi UEMOTO, Tatsuya ASAHATA, Hidekazu SUZUKI, Yo YAMAMOTO
  • Publication number: 20150228450
    Abstract: A charged particle beam apparatus includes: a charged particle beam column; a detector configured to detect secondary charged particles; an image processor; a display device; a needle arranged in an irradiation area of charged particle beam; a needle actuator; a user interface; and a controller configured to control the needle actuator to actuate the needle in accordance with a target position that is set by the user interface. The controller controls the needle actuator to move the needle to track a change of the target position that is set by the user interface.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Atsushi UEMOTO, Tatsuya ASAHATA, Hidekazu SUZUKI, Yo YAMAMOTO
  • Publication number: 20150221473
    Abstract: A charged particle beam apparatus including a column irradiating a sample with a charged particle beam, a detector detecting a secondary particle emitted from the sample, an image data generating section generating image data indicating two-dimensional distribution of an amount of the secondary particle detected by the detector, and a controller that respectively sets first and second position adjustment irradiation frames for first and second beam condition on a surface of the sample in the image data, form a first and second irradiation traces by respectively irradiating the first and second position adjustment irradiation frames with the charged particle beams of the first and second beam conditions, correct a position of the second processing irradiation frame, based on a position displacement amount between a predetermined position of the first irradiation trace and a predetermined position of the second irradiation trace.
    Type: Application
    Filed: October 28, 2014
    Publication date: August 6, 2015
    Inventors: Shota TORIKAWA, Tatsuya ASAHATA, Makoto SATO, Atsushi UEMOTO
  • Publication number: 20150206702
    Abstract: A cross-section processing observation apparatus includes an ion beam control unit for controlling a charged particle beam generation-focusing portion and a deflector and including a DAC which converts an input digital signal into an analog signal which is to be input to the deflector, and a field-of-view setting portion for setting a value of a field of view of a charged particle beam where the scanning performed by the deflector is performed on the basis of a set value of a slice amount.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 23, 2015
    Inventors: Atsushi UEMOTO, Xin MAN, Tatsuya ASAHATA
  • Patent number: 9080945
    Abstract: A cross-section processing and observation method performed by a cross-section processing and observation apparatus, the method comprising: a cross-section processing step of forming a cross-section by irradiating a sample with an ion beam; a cross-section observation step of obtaining an observation image of the cross-section by irradiating the cross-section with an electron beam; and repeating the cross-section processing step and the cross-section observation step so as to obtain observation images of a plurality of cross-sections, wherein, in a case where Energy Dispersive X-ray Spectrometry (EDS) measurement of the cross-section is performed and an X-ray of a specified material is detected, an irradiation condition of the ion beam is changed so as to obtain observation images of a plurality of cross-sections of the specified material, and the cross-section processing and observation of the specified material is performed.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 14, 2015
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Atsushi Uemoto, Xin Man, Tatsuya Asahata