摘要:
A discharge test device including: a head that includes a plurality of nozzles discharging liquid to a medium, a temperature obtaining section that obtains a temperature related to the head, a detection electrode that faces the head with a predetermined distance therebetween, an identification section that applies a predetermined voltage to the detection electrode and identifies an abnormal nozzle on the basis of voltage change of the detection electrode generated by liquid discharge from the nozzles, and a control section that controls the head and the identification section so that: when the temperature obtained by the temperature obtaining section is within a first temperature range, the head discharges the liquid to the medium after the identification section identifies the abnormal nozzle, when the temperature obtained by the temperature obtaining section is outside the first temperature range and within a second temperature range that is larger than the first temperature range, the head discharges the liquid to the medium without the abnormal nozzle being identified by the identification section, and when the temperature obtained by the temperature obtaining section is outside the second temperature range, the abnormal nozzle is not identified and the liquid is not discharged to the medium.
摘要:
A charged particle beam impinging on a specimen is set to have left and right tilt angles corresponding to a parallactic angle. A control unit is provided which scans the beam over the specimen while giving a left tilt and a right tilt corresponding to the parallactic angle alternately to the beam on each scanning line. In this way, images are acquired. A three-dimensional image in which deterioration of the resolution is suppressed is displayed in real time by combining aberration cancellation means with the control of the beam according to the parallactic angle. The aberration cancellation means uses an optical system having plural stages of lenses to provide overall cancellation of aberrations by making use of the action of a lens to deflect the beam back to the optical axis.
摘要:
A scanning electron microscope capable of securing a high ion detection efficiency in spite of a short working distance and the adaptability for high resolution is disclosed. An ion detector for detecting ions is arranged nearer to an electron source than a first pressure limiting aperture for maintaining the specimen chamber in a predetermined vacuum. This configuration makes it possible to achieve the high resolution of the semi-in-lens objective lens on one hand and to detect the ions generated by the collision between the secondary electrons and the gas molecules on the other hand.
摘要:
A charged particle beam apparatus facilitating adjusting the beam center axis of a charged particle beam in a case where optical conditions are modified or in a case where the beam center axis of the charged particle beam is moved due to state variation of the apparatus. When the beam center axis of a primary charged particle beam is adjusted with a deflector (aligner), a processing step (1) for measuring the sensitivity of the aligner and a processing step (2) for detecting the deviation between the center of the primary charged particle beam and the center of the objective aperture are provided. The charged particle beam apparatus has means for determining the aligner set values, using the aligner sensitivity measured in the processing step (1) and the amount of deviation detected in the processing step (2), such that the primary charged particle beam passes through the center of the objective aperture and controlling the aligner using the aligner set values.
摘要:
Disclosed is a charged particle radiation device having a charged particle source which generates a charged particle as a probe, a charged particle optical system, a sample stage, a vacuum discharge system, an aperture which restricts a probe, a conductive film, and a charged particle detector, wherein the conductive film is provided at a position excluding the optical axis of the optical system between the sample stage and the aperture; and the distance between the sensing surface of the surface of the charged particle detector and the sample stage is larger than the distance between the sample stage and the conductive film, so that the surface of the conductive film and the sensing surface of the detector are inclined.
摘要:
Provided is an inspection apparatus or observation apparatus enabling appropriate inspection or observation of a sample in an easy-to-use manner, using a charged-particle technique and an optical technique. Specifically, provided is an inspection or observation apparatus including: a first casing forming at least part of a first space constituting at least part of a region through which a primary charged-particle beam emitted from a charged-particle irradiation section reaches a sample, the first space capable of being maintained in a vacuum state; a second casing provided on the first casing to form at least part of a second space capable of storing the sample therein; a partition wall section for partitioning the first space and the second space from each other, the partition wall section disposed so as to be coaxial with the charged-particle irradiation section when the sample is irradiated with the primary charged-particle beam from the charged-particle irradiation section; and an optical observation section for casting light onto the sample and detecting light from the sample from the same direction as the charged-particle irradiation section.
摘要:
Provided is a charged particle beam device or charged particle microscope permitting observation of even a large-sized specimen in the air atmosphere or a gaseous atmosphere.A charged particle beam device that adopts a thin film which partitions a vacuum atmosphere and the air atmosphere (or gaseous atmosphere) includes a charged particle optical lens barrel in which a charged particle optical system is stored, a housing in which a route along which a primary charged particle beam emitted from the charged particle optical lens barrel reaches the thin film is sustained in the vacuum atmosphere, and a mechanism that bears the charged particle optical lens barrel and first housing against a device installation surface. As the bearing mechanism, a housing having an opening through which a large-sized specimen is carried in or a mechanism having a shape other than the shape of the housing, such as, a post is adopted.
摘要:
The present invention provides a scanning charged particle beam device including a sample chamber (8) and a detector. The detector has: a function of detecting light at least ranging from the vacuum ultraviolet region to the visible light region, of light (17) having image information which is obtained by a light emission phenomenon of gas scintillation when the sample chamber is controlled to a low vacuum (1 Pa to 3,000 Pa); and a function of detecting ion currents (11, 13) having image information which are obtained by cascade amplification of electrons and gas molecules. Accordingly, it becomes possible to realize a device which can deal with observation of various samples. Further, an optimal configuration of the detection unit is devised, to thereby make it possible to add value to an obtained image and provide users in wide-ranging fields with the observation image. In addition, the detector is made usable in combination with a detector for high vacuum, to thereby make it possible to provide wide-ranging users with the image, irrespective of the vacuum mode.
摘要:
A discharge test device including: a head that includes a plurality of nozzles discharging liquid to a medium, a temperature obtaining section that obtains a temperature related to the head, a detection electrode that faces the head with a predetermined distance therebetween, an identification section that applies a predetermined voltage to the detection electrode and identifies an abnormal nozzle on the basis of voltage change of the detection electrode generated by liquid discharge from the nozzles, and a control section that controls the head and the identification section so that: when the temperature obtained by the temperature obtaining section is within a first temperature range, the head discharges the liquid to the medium after the identification section identifies the abnormal nozzle, when the temperature obtained by the temperature obtaining section is outside the first temperature range and within a second temperature range that is larger than the first temperature range, the head discharges the liquid to the medium without the abnormal nozzle being identified by the identification section, and when the temperature obtained by the temperature obtaining section is outside the second temperature range, the abnormal nozzle is not identified and the liquid is not discharged to the medium.
摘要:
The printing apparatus includes: a head which discharges liquid from a nozzle and is grounded; a detection electrode which is opposed to the nozzle at a predetermined interval and is sealed by an insulating member; a power source which ensures the detection electrode is at a predetermined potential; a determining unit which detects a change in potential of the detecting electrode that is caused by the discharge of the liquid from the nozzle and determines a nozzle that does not normally discharge the liquid to the head on the basis of the change in potential of the detection electrode; and a cap portion which abuts the head during non-printing and accommodates the detection electrode.