Patents by Inventor Muneyuki Fukuda

Muneyuki Fukuda 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).

  • Publication number: 20080067385
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 20, 2008
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasuhiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, Hideo Kashima, Kaoru Umemura
  • Patent number: 7326942
    Abstract: There is a machining method which shortens a cross-section forming time by an ion beam, a machining method which shortens a machining time for separating a micro sample from a wafer, and an ion beam machining system. The ion beam machining system has a vacuum container containing a duoplasmatron, non-axially symmetric ion beam lens and stencil mask, wherein a micro sample is removed from a sample by an argon ion beam having a steep beam profile in a direction perpendicular to the cross-section. The cross-section observations for wafer inspection/defect analysis used in device manufacture can be obtained in a short time. Further, there is a inspection/analysis method which does not cause defects even if a sample is removed and a wafer is returned to the process.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: February 5, 2008
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroyasu Shichi, Muneyuki Fukuda, Yoshinori Nakayama, Masaki Hasegawa, Satoshi Tomimatsu
  • Publication number: 20070272858
    Abstract: It is to provide a technology that can quickly process many measurement points on a substrate by a primary charged particle beam. In a control system, with respect to each measurement point (irradiation position of the primary charged particle beam) on a wafer, a calculator obtains a probability of a surface potential at a relevant measurement point that is obtained from a surface potential distribution function of the wafer and is stored in a data storage unit. Based on the probability, the calculator determines an amplitude of a set parameter (for example, retarding voltage) of charged particle optics at the relevant measurement point. Then the calculator checks the focus state of the primary charged particle beam by changing the set parameter in the range of the determined amplitude, and determines the set parameter to be used for measurement.
    Type: Application
    Filed: February 9, 2007
    Publication date: November 29, 2007
    Inventors: Sayaka Tanimoto, Hiromasa Yamanashi, Muneyuki Fukuda, Yasunari Sohda
  • Publication number: 20070252092
    Abstract: Certain film deposition and selective etching technology may involve scanning of a charged particle beam along with a deposition gas and etching gas, respectively. In conventional methods, unfortunately, the deposition rate or the selective ratio is oftentimes decreased depending on optical system setting, scan spacing, dwell time, loop time, substrate, etc. Accordingly, an apparatus is provided for finding an optical system setting, a dwell time, and a scan spacing. These parameters are found to realize the optimal scanning method of the charged particle beam from the loop time dependence of the deposition rate or etching rate. This deposition rate or etching rate are measurements stored in advance for a desired irradiation region where film deposition or selective etching should be performed. The apparatus displays a result of its judgment on a display device.
    Type: Application
    Filed: June 13, 2007
    Publication date: November 1, 2007
    Inventors: Muneyuki Fukuda, Hiroyasu Shichi
  • Publication number: 20070221844
    Abstract: The present invention provides a pattern inspection technique that enables measurement and inspection of a fine pattern by a charged particle beam to be performed with high throughput.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 27, 2007
    Inventors: Hiromasa Yamanashi, Muneyuki Fukuda, Sayaka Tanimoto, Yasunari Sohda
  • Patent number: 7268356
    Abstract: A sample fabricating method of irradiating a sample with a focused ion beam at an incident angle less than 90 degrees with respect to the surface of the sample, eliminating the peripheral area of a micro sample as a target, turning a specimen stage around a line segment perpendicular to the sample surface as a turn axis, irradiating the sample with the focused ion beam while the incident angle on the sample surface is fixed, and separating the micro sample or preparing the micro sample to be separated. A sample fabricating apparatus for forming a sample section in a sample held on a specimen stage by scanning and deflecting an ion beam, wherein an angle between an optical axis of the ion beam and the surface of the specimen stage is fixed and formation of a sample section is controlled by turning the specimen stage.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: September 11, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyasu Shichi, Tohru Ishitani, Hidemi Koike, Kaoru Umemura, Eiichi Seya, Mitsuo Tokuda, Satoshi Tomimatsu, Hideo Kashima, Muneyuki Fukuda
  • Publication number: 20070187598
    Abstract: A scanning electron microscope, by which an image of unevennesses on the surface of a sample may be obtained in a high-resolution manner and a high contrast one, is provided according to the present invention. A sample image is obtained by use of the scanning electron microscope with a configuration in which a positive voltage is applied in order to accelerate a primary electron beam, and an electric field shielding plate, a magnetic field shielding plate, or an electromagnetic field shielding plate is arranged on the upper side of an object lens.
    Type: Application
    Filed: January 19, 2007
    Publication date: August 16, 2007
    Inventors: Ichiro Tachibana, Mitsugu Sato, Atsuko Fukada, Naomasa Suzuki, Muneyuki Fukuda
  • Publication number: 20070181831
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Application
    Filed: April 5, 2007
    Publication date: August 9, 2007
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasuhiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, Hideo Kashima, Kaoru Umemura
  • Publication number: 20070181807
    Abstract: An object of the invention is to be able to select easily and quickly inspection recipes which are appropriate to samples from any number of inspection recipes. A calculating device displays a plurality of inspection recipes on the GUI. An inspection recipe includes settings for controlling charged particle columns which irradiate charged particles on samples with a plurality of characteristics. Plural inspection recipes are arranged and displayed on a coordinate system which is specified by a plurality of axes having characteristic values (robustness variable of charge up, throughput of defect inspection, and accuracy of defect inspection) which have mutually trade-off relationships.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 9, 2007
    Inventors: Muneyuki Fukuda, Tomoyasu Shojo, Atsuko Fukada, Noritsugu Takahashi
  • Publication number: 20070158564
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Application
    Filed: February 15, 2007
    Publication date: July 12, 2007
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasuhiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, Hideo Kashima, Kaoru Umemura
  • Publication number: 20070158591
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Application
    Filed: February 15, 2007
    Publication date: July 12, 2007
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasahiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, HIdeo Kashima, Kaoru Umemura
  • Patent number: 7242013
    Abstract: Certain film deposition and selective etching technology may involve scanning of a charged particle beam along with a deposition gas and etching gas, respectively. In conventional methods, unfortunately, the deposition rate or the selective ratio is oftentimes decreased depending on optical system setting, scan spacing, dwell time, loop time, substrate, etc. Accordingly, an apparatus is provided for finding an optical system setting, a dwell time, and a scan spacing. These parameters are found to realize the optimal scanning method of the charged particle beam from the loop time dependence of the deposition rate or etching rate. This deposition rate or etching rate are measurements stored in advance for a desired irradiation region where film deposition or selective etching should be performed. The apparatus displays a result of its judgment on a display device.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 10, 2007
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Muneyuki Fukuda, Hiroyasu Shichi
  • Publication number: 20070112533
    Abstract: After completion of an arbitrary device process, an apparatus for micro-sample extraction extracts a part of a wafer as a micro-sample of a size equal to or larger than a repetition pattern with a probe and places the extracted micro-sample to a micro-sample storage, and the micro-sample storage is stored into an apparatus for micro-sample storage. The wafer is subjected to a post process and an observation desired position is determined in response to a failure analysis requirement. After that, the micro-sample is unloaded from the micro-sample storage by an apparatus for additional processing of the micro-sample and is placed onto an observation sample holder. By performing an additional process in the observation desired position, a failure analysis sample is prepared, and analysis information obtained by an apparatus for failure analysis is output.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 17, 2007
    Inventors: Satoshi Tomimatsu, Hiroyasu Shichi, Muneyuki Fukuda, Kaoru Umemura
  • Patent number: 7205560
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: April 17, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasuhiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, Hideo Kashima, Kaoru Umemura
  • Patent number: 7205554
    Abstract: An object of the invention is to realize a method and an apparatus for processing and observing a minute sample which can observe a section of a wafer in horizontal to vertical directions with high resolution, high accuracy and high throughput without splitting any wafer which is a sample. In an apparatus of the invention, there are included a focused ion beam optical system and an electron optical system in one vacuum container, and a minute sample containing a desired area of the sample is separated by forming processing with a charged particle beam, and there are included a manipulator for extracting the separated minute sample, and a manipulator controller for driving the manipulator independently of a wafer sample stage.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: April 17, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Tokuda, Muneyuki Fukuda, Yasuhiro Mitsui, Hidemi Koike, Satoshi Tomimatsu, Hiroyasu Shichi, Hideo Kashima, Kaoru Umemura
  • Patent number: 7200506
    Abstract: After completion of an arbitrary device process, an apparatus for micro-sample extraction extracts a part of a wafer as a micro-sample of a size equal to or larger than a repetition pattern with a probe and places the extracted micro-sample to a micro-sample storage, and the micro-sample storage is stored into an apparatus for micro-sample storage. The wafer is subjected to a post process and an observation desired position is determined in response to a failure analysis requirement. After that, the micro-sample is unloaded from the micro-sample storage by an apparatus for additional processing of the micro-sample and is placed onto an observation sample holder. By performing an additional process in the observation desired position, a failure analysis sample is prepared, and analysis information obtained by an apparatus for failure analysis is output.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: April 3, 2007
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Satoshi Tomimatsu, Hiroyasu Shichi, Muneyuki Fukuda, Kaoru Umemura
  • Publication number: 20060284112
    Abstract: A specimen fabricating apparatus comprises: a specimen stage, on which a specimen is placed; a charged particle beam optical system to irradiate a charged particle beam on the specimen; an etchant material supplying source to supply an etchant material, which contains fluorine and carbon in molecules thereof, does not contain oxygen in molecules thereof, and is solid or liquid in a standard state; and a vacuum chamber to house therein the specimen stage. A specimen fabricating method comprises the steps of: processing a hole in the vicinity of a requested region of a specimen by means of irradiation of a charged particle beam; exposing the requested region by means of irradiation of the charged particle beam; supplying an etchant material, which contains fluorine and carbon in molecules thereof, does not contain oxygen in molecules thereof, and is solid or liquid in a standard state, to the requested region as exposed; and irradiating the charged particle beam on the requested region as exposed.
    Type: Application
    Filed: May 26, 2006
    Publication date: December 21, 2006
    Inventors: Satoshi Tomimatsu, Miyuki Takahashi, Hiroyasu Shichi, Muneyuki Fukuda
  • Publication number: 20060249697
    Abstract: A method and system for separating and preparing a sample for analysis from a wafer without contaminating the wafer with an element such as Ga. A first ion beam is irradiated on a sample and scanned to fabricate a micro sample from a part of the sample. A probe for separating the micro sample from the sample and a micro-sample stage on which the micro sample is to be placed and held are provided. The first ion beam contains at least one of an inert gas, oxygen and nitrogen as an element. A second ion beam contains an element different from the element of the first ion beam. The separated micro sample is fed to the second ion beam from the apparatus of the first ion beam while being held on the micro-sample stage, and is processed by using the second ion beam.
    Type: Application
    Filed: July 6, 2006
    Publication date: November 9, 2006
    Inventors: Hiroyasu Shichi, Kaoru Umemura, Muneyuki Fukuda
  • Publication number: 20060243906
    Abstract: In an electric immersion lens having high resolution capability, secondary electrons generated from a specimen are accelerated to suppress the dependency of rotational action of the secondary electrons applied thereto by an objective lens upon energy levels of the secondary electrons and when selectively detecting low and high angle components of elevation and azimuth as viewed from a secondary electron generation site by means of an annular detector interposed between an electron source and the objective lens, the secondary electrons are adjusted and deflected by means of an E×B deflector such that the center axis of secondary electrons converged finely under acceleration is made to be coincident with the center axis of a low elevation signal detection system and the secondary electrons are deviated from an aperture of a high elevation signal detection system.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 2, 2006
    Inventors: Atsuko Fukada, Mitsugu Sato, Naomasa Suzuki, Hidetoshi Nishiyama, Muneyuki Fukuda, Noritsugu Takahashi
  • Publication number: 20060186351
    Abstract: To establish a technique that enables sorting of the elevation and azimuth angle in the direction of emitting secondary electrons and obtaining images with emphasized contrast, in order to perform the review and analysis of shallow asperities and microscopic foreign particles in a wafer inspection during the manufacture of semiconductor devices, an electromagnetic overlapping objective lens is used to achieve high resolution, an electron beam is narrowly focused using the objective lens, an electric field for accelerating secondary electrons in the vicinity of a wafer in order to suppress the dependence on secondary electron energy of the rotation of secondary electrons generated by irradiation of the electron beam, a ring-shaped detector plate is disposed between an electron source and the objective lens, and the low angle components of the elevation angle of the secondary electrons, as viewed from the place of generation, and the high angle components are separated and also the azimuth components are separa
    Type: Application
    Filed: February 9, 2006
    Publication date: August 24, 2006
    Inventors: Hidetoshi Nishiyama, Muneyuki Fukuda, Noritsugu Takahashi, Mitsugu Sato, Atsuko Fukada, Naomasa Suzuki