摘要:
An opening/closing device includes a fixed plate, a moving plate movable relative to the fixed plate, a slide plate formed having a groove, a hinge including a first shaft connected to the fixed plate, a third shaft connected to the moving plate, and a second shaft between the first and third shafts, and moves the moving plate between closed and open positions relative to the fixed plate, a slide arm including a fourth shaft connected to the moving plate and a fifth shaft connected slidably along the groove, and moves the moving plate between the closed and open positions, a link arm having one end connected to the second shaft and the other to the fifth shaft. The fifth shaft slides inside the groove as the link arm moves along with the moving of the hinge when the moving plate is moved between the closed and open positions.
摘要:
The present invention relates to an opening/closing device including a fixed plate, a moving plate that can be moved relative to the fixed plate, a slide plate that is formed having a slide groove, a hinge arm including a first shaft part rotatably connected to the fixed plate, a third shaft part rotatably connected to the moving plate, and a second shaft part provided between the first shaft part and the third shaft part, and configured to move the moving plate between a closed position and an open position relative to the fixed plate by centrally rotating about the first shaft part, a slide arm including a fourth shaft part rotatably connected to the moving plate and a fifth shaft part connected slidably along the slide groove of the slide plate, and configured to move the moving plate between the closed position and the open position relative to the fixed plate by rotating about the fourth shaft part, a link arm having one end part connected to the second shaft part and another end part connected to the fifth shaft part. The fifth shaft part is configured to slide inside the slide groove as the link arm moves along with the moving of the hinge arm when the moving plate is moved between the closed position and the open position. The moving plate and the fixed plate are positioned substantially on the same plane when the moving plate is moved to the open position.
摘要:
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.
摘要:
A sliding device for an electronic apparatus includes a contact piece projecting outward in a widthwise direction from a sliding plate and a contacted part with which the contact piece is caused to come into contact when the sliding plate is caused to slide with a maximum displacement in a rear direction relative to a base plate. The contact piece includes a partially cylindrical surface and a connecting surface. The contacted part includes a contacted shape part configured to be contacted by a boundary part of the partially cylindrical surface and the connecting surface to provide the sliding plate with a rotational force to cause a front direction end portion of the sliding plate to move in the bottom direction relative to a rear direction end portion of the sliding plate, and an engaged shape part with which the partially cylindrical surface and the connecting surface are caused to engage.
摘要:
An object of the present invention is to obtain a clear absorbed current image without involving the difference in gain of amplifier between inputs, from absorbed currents detected by using a plurality of probes and to improve measurement efficiency.In the present invention, a plurality of probes are brought in contact with a specimen. While irradiating the specimen with an electron beam, currents flowing in the probes are measured. Signals from at least two probes are input to a differential amplifier. An output of the differential amplifier is amplified. On the basis of the amplified output and scanning information of the electron beam, an absorbed current image is generated. According to the invention, a clear absorbed current image can be obtained without involving the difference in gain of amplifier between inputs. Thus, measurement efficiency in a failure analysis of a semiconductor device can be improved.
摘要:
An X-ray analyzing method for inspecting opening states of fine holes comprises the steps of: irradiating a finely converged electron beam into a first fine hole, observing an X-ray emitted from the inside of said first fine hole in order to obtain an first X-ray analysis data about the residue substance existing at the bottom of said first fine hole; irradiating a finely converged electron beam into a second fine hole, observing an X-ray emitted from the inside of said second fine hole in order to obtain an second X-ray analysis data about the residue substance existing at the bottom of said second fine hole; and comparing said first X-ray analysis data with said second X-ray analysis data, forming a judgment as to whether or not a difference between said first and second analysis data is smaller than a predetermined threshold value and using an outcome of said judgment to determine the opening states of said first and second fine holes. The X-ray observations are carried out by detecting only the X-rays emitted within the angular range -.theta. to +.theta. where notation .theta. is an angle formed with a center axis of the irradiated electron beam and so defined that tan .theta. is equal to a/d whereas notations a and d are the radius and the depth of the fine holes.
摘要翻译:用于检查细孔的打开状态的X射线分析方法包括以下步骤:将精细会聚的电子束照射到第一细孔中,观察从所述第一细孔的内部发射的X射线,以获得第一细孔 关于存在于所述第一细孔底部的残留物质的X射线分析数据; 将精细会聚的电子束照射到第二细孔中,观察从所述第二细孔的内部发射的X射线,以获得关于存在于所述第二细孔底部的残留物质的第二X射线分析数据 ; 以及将所述第一X射线分析数据与所述第二X射线分析数据进行比较,形成关于所述第一和第二分析数据之间的差是否小于预定阈值的判断,并且使用所述判断结果 确定所述第一和第二细孔的打开状态。 通过仅检测在角度范围θ至+θ内发射的X射线来进行X射线观察,其中符号θ是与照射的电子束的中心轴形成的角度,并且如此定义,tanθ等于 a / d,而符号a和d是细孔的半径和深度。
摘要:
A scanning transmission electron microscope including an electron detection system having a scattering angle limiting aperture (for the inner angle) and a scattering angle limiting aperture (for the outer angle) between a specimen and an electron detector (comprising a scintillator and a light guide) and only one electron detector is installed.
摘要:
A transmission electron microscope makes it possible to search for defects without applying an undesirable treatment to a specimen by using a reference specimen prepared separately from a specimen to be observed. A pair of specimen holders detachable from the column of the electron microscope are adjacently arranged at upper and lower stages respectively along an electron beam axis to position the specimens closely to each other in an electron beam illuminating position. The pair of holders can be independently set to or removed from the electron beam illuminating position. The specimen holders include devices for selectively finely adjusting the spacing between the specimens, the angle of the specimen with respect to the electron beam axis and with respect to a plane perpendicular to the electron beam axis.
摘要:
A mass spectrometer for analyzing trace impurities on a level between ppt and ppb contained in silicon material gas such as monosilane gas. The mass spectrometer includes an ion formation region, reaction region, and mass analysis region. Ion formation gas is introduced into the ion formation region and sample gas (silicon material gas) is introduced into the reaction region. The ion formation region ionizes ion formation gas by an ionizer and forms primary ions. When the pressure of ion formation gas is made higher than the pressure of sample gas, the ion formation gas flows into the reaction region from the ion formation region together with primary ions and is mixed with the sample gas. In the reaction region, an ion-molecule reaction is produced between the primary ions and trace impurities contained in the sample gas and the trace impurities contained in the sample gas are ionized. The ion intensity of trace impunities, the concentration of trace impurities in the sample gas is determined using a calibration curve. When the gas pressure in the reaction region is kept at almost 1 atmosphere, the reaction is promoted and when the ion-molecule reaction time is optimized according to the size of the reaction region and the voltage condition, impurities on a level between ppt and ppb can be detected and determined.
摘要:
A mass spectrometer, including an evacuable vessle, mass separation means provided in the evacuable vessel for separating ions in accordance with the mass thereof, and ion detection means provided in the evacuable vessel for detecting ions emitted from the mass separation means to convert the emitted ions into an electric signal, in which the ion detection means includes an electron-multiplier for detecting positive ions and a photo-multiplier for detecting negative ions. According to this mass spectrometer, positive ions can be detected at high sensitivity, and negative ions are readily detected.