Patents Assigned to Hitachi High-Technologies
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Publication number: 20130327939Abstract: In the case of inspecting samples having different sizes by means of a semiconductor inspecting apparatus, a primary electron beam bends since distribution is disturbed on an equipotential surface at the vicinity of the sample at the time of inspecting vicinities of the sample, and what is called a positional shift is generated. A potential correcting electrode is arranged outside the sample and at a position lower than the sample lower surface, and a potential lower than that of the sample is applied. Furthermore, a voltage to be applied to the potential correcting electrode is controlled corresponding to a distance between the inspecting position and a sample outer end, sample thickness and irradiation conditions of the primary electron beam.Type: ApplicationFiled: August 20, 2013Publication date: December 12, 2013Applicant: HITACHI HIGH-TECHNOLOGIESInventors: Go MIYA, Seiichiro KANNO, Hiroyuki KITSUNAI, Masaru MATSUSHIMA, Toru SHUTO
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Patent number: 8399832Abstract: A calibration standard specimen is provided to have formed therein calibrating patterns of a lattice shape discontinuously arrayed, and particular alignment patterns respectively disposed near the calibrating patterns so that the positioning of the specimen can be made to match the calibrating patterns to the measurement points.Type: GrantFiled: June 30, 2008Date of Patent: March 19, 2013Assignee: Hitachi High-TechnologiesInventors: Takeshi Mizuno, Hiroki Kawada
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Publication number: 20090127458Abstract: In an SEM observation in a depth direction of a cross section processed by repeated FIB cross-sectioning and SEM observation to correct a deviation in an observation field of view and a deviation in focus, are corrected, the deviations occurring when a processed cross section moves in the depth direction thereof; information on a height and a tilt of a surface of cross section processing area is calculated before the processing, the above information is used, the deviation in a field of view and the deviation in focus in SEM observation, which correspond to an amount of movement of the cross section at a time of the processing, are predicted, and the SEM is controlled based on the predicted values.Type: ApplicationFiled: January 14, 2009Publication date: May 21, 2009Applicant: Hitachi High-TechnologiesInventors: Tohru ISHITANI, Uki Kabasawa, Tsuyoshi Ohnishi
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Publication number: 20060097186Abstract: An emitter of a Ga liquid metal ion source is constituted to include W12 of a base material and Ga9 of an ion source element covering a surface as construction materials. By making back-sputtered particles become elements (W and Ga) of the Ga liquid metal ion sour source, if back-sputtered particles attach to the Ga liquid metal ion source, contamination which may change physical characteristics of Ga9 does not occur. A W aperture is used as a beam limiting (GUN) aperture to place Ga of approx. 25 mg (of melting point of 30° C.) on a surface of a portion included in a beam emission region (Ga store). When emitting ions to the beam limiting (GUN) aperture, Ga in the emission region melts and diffuses on a surface of the beam emission region of the W aperture.Type: ApplicationFiled: December 21, 2005Publication date: May 11, 2006Applicant: Hitachi High-TechnologiesInventors: Hiroyasu Kaga, Yuichi Madokoro, Shigeru Izawa, Tohru Ishitani, Kaoru Umemura
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Patent number: 6664738Abstract: There is provided a plasmar processing apparatus capable of positively controlling the temperature distribution of a semiconductor wafer during etching processing in a clear state, wherein an electrode block is provided with independent slits as coolant flow paths on the inner and outer peripheries and, at the same time, between these slits is formed a slit for suppressing heat transfer between the inner and outer peripheries, and owing to this slit for suppressing heat transfer, a uniform temperature in the electrode block is suppressed and thus it is possible to obtain an arbitrary independent temperature in the plane of the electrode block and positive and clear control of temperature distribution patterns can be performed.Type: GrantFiled: February 27, 2002Date of Patent: December 16, 2003Assignees: Hitachi, Ltd., Hitachi High-TechnologiesInventors: Masatsugu Arai, Ryujiro Udo, Naoyuki Tamura, Masanori Kadotani, Motohiko Yoshigai
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Patent number: D474416Type: GrantFiled: May 24, 2002Date of Patent: May 13, 2003Assignee: Hitachi High-TechnologiesInventors: Mitsuru Oonuma, Hiroyasu Uchida, Takeshi Shibuya