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Atsushi Takane, Mito JP

Atsushi Takane, Mito JP

Patent application numberDescriptionPublished
20080217535Method of forming a sample image and charged particle beam apparatus - An object of the present invention is to provide a sample image forming method and a charged particle beam apparatus which are suitable for realizing suppressing of the view area displacement with high accuracy while the influence of charging due to irradiation of the charged particle beam is being suppressed.09-11-2008
20080239292Apparatus and method for inspecting defects - To provide a defect inspection apparatus and defect inspection method adapted to make it possible to easily assign threshold levels to a plurality of scattered-light detectors and to appropriately acquire data detected by each of the scattered-light detectors.10-02-2008
20080292199Charged Particle Beam Apparatus11-27-2008
20090084955CHARGED PARTICLE BEAM EQUIPMENT AND CHARGED PARTICLE MICROSCOPY - On the basis of a displacement of the field of view before and after a deflection of a charged particle beam, extracted from a first specimen image, including a displacement of the field of view recorded by causing a charged particle beam to deflect by a predetermined amount by a beam deflector in an image in which a specimen image is captured at a first magnification calibrated by using a specimen enlarged image of a specimen as a magnification standard, and also a displacement of the field of view before and after a deflection of the charged particle beam, extracted from a second specimen image, including a displacement of the field of view recorded by causing a charged particle beam to deflect by the predetermined amount by the beam deflector in an image in which a specimen image is captured at a second magnification, the second magnification is calibrated.04-02-2009
20090242794Charged particle beam equipment - Charged particle beam equipment has a processing unit for calibrating dimension values of an enlarged specimen image, and means for changing the amount by which a charged particle beam is scanned. Also, a specimen stand has a mechanism for holding a specimen having a periodical structure or a specimen simultaneously having a periodical structure and a non-periodical structure, and a storage device for automatically changing a magnification for an enlarged specimen image, and storing measured values at all magnifications.10-01-2009
20090314938CHARGED PARTICLE BEAM APPARATUS AND DIMENSION MEASURING METHOD - There is provided a charged particle beam apparatus which allows implementation of a high-reliability and high-accuracy dimension measurement even if height differences exist on the surface of a sample. The charged particle beam apparatus includes the following configuration components: An acquisition unit for acquiring a plurality of SEM images whose focus widths are varied in correspondence with the focal depths, a determination unit for determining, from the plurality of SEM images acquired, a SEM image for which the image sharpness degree of the partial domain including a dimension-measuring domain becomes the maximum value, and a measurement unit for measuring the dimension of the predetermined domain from the SEM image whose image sharpness degree is the maximum value.12-24-2009
20100006755CHARGED PARTICLE BEAM ALIGNMENT METHOD AND CHARGED PARTICLE BEAM APPARATUS - An object of the present invention is to provide a charged particle beam apparatus and an alignment method of the charged particle beam apparatus, which make it possible to align an optical axis of a charged particle beam easily even when a state of the charged particle beam changes. The present invention comprises calculation means for calculating a deflection amount of an alignment deflector which performs an axis alignment for an objective lens, a plurality of calculation methods for calculating the deflection amount is memorized in the calculation means, and a selection means for selecting at least one of the calculation methods is provided.01-14-2010
20100102224CHARGED PARTICLE BEAM APPARATUS - A charged particle beam apparatus for obtaining information of an uneven surface or a depression/protrusion of a sample by irradiating a charged particle beam to a sample having an uneven surface or a depression/protrusion at a plurality of focal positions, measuring signal emitted from the sample, and comparing profile waveforms corresponding to edge portions of the uneven surface.04-29-2010

Patent applications by Atsushi Takane, Mito JP