摘要:
Charged-particle-beam (CPB) mapping projection-optical systems and adjustment methods for such systems are disclosed that can be performed quickly and accurately. In a typical system, an irradiation beam is emitted from a source, passes through an irradiation-optical system, and enters a Wien filter (“E×B”). Upon passing through the E×B, the irradiation beam passes through an objective-optical system and is incident on an object surface. Such impingement generates an observation beam that returns through the objective-optical system and the E×B in a different direction to a detector via an imaging-optical system. An adjustment-beam source emits an adjustment beam used for adjusting and aligning the position of, e.g., the object surface and/or the Wien's condition of the E×B. The adjustment beam can be off-axis relative to the objective-optical system. For such adjusting and aligning, fiducial marks (situated, e.g., in the plane of the object surface) can be used that are optimized for the CPB-optical system and the off-axis optical system. Desirably, the image formed on the detector when electrical voltage and current are not applied to the E×B is in the same position as the image formed on the detector when electrical voltage and current are applied to the E×B. Also provided are “evaluation charts” for use in such alignments that do not require adjustment of the optical axis of the irradiation-optical system, and from which the kinetic-energy distribution of the emitted adjustment beam is stable.
摘要:
A decomposition apparatus for decomposition of decomposition targets such as organic chlorinated compounds is provided. The decomposition apparatus includes a contact section with an internal space to allow a decomposition target to come into contact with and be taken into a liquid, a flow path to lead along with the liquid the decomposition target taken into the liquid to a position different from the internal space, a decomposing device positioned along the flow path in a state cut off from the outside air to decompose the decomposition target that has been led through the flow path, and a device to introduce to the contact section a liquid that contains products produced from the decomposition of the decomposition target by the decomposing device. The decomposing apparatus have plate-shaped electrodes that come into contact with and electrolyze the decomposition target that flows through the flow path, and wherein the surfaces of the electrodes are positioned within the decomposing device at an angle different from the flow direction of the liquid in the flow path, for example, perpendicular to the flow direction of the liquid in the flow path.
摘要:
The present invention enables efficient decomposition work without involving burdensome operations of carrying out decomposition of undecomposed pollutants discharged at the time of starting decomposition processing and undecomposed pollutants remaining at the time of interruption and termination of decomposition processing, separately from primary decomposition. At the time of starting decomposition, the steps of supplying a substance having a function to decompose the pollutant to a decomposition area, irradiating the decomposition area with light and supplying a decomposition target substance to the reaction area are carried out in the described order, while at the time of ending start of decomposition, the operations of supplying the decomposition target substance, irradiating the decomposition area with light and supplying the substance having a function to decompose the pollutant to the decomposition area are carried out in the described order.
摘要:
A method and an apparatus for purifying water including groundwater contaminated with a pollutant such as organohalogenated compounds are provided. The contaminated water is purified by aeration to expel the pollutant into gas phase, and the pollutant containing gas is then mixed with a chlorine-containing gas under light irradiation to decompose the pollutant, where the chlorine-containing gas may generated from functional water by aeration.
摘要:
Provided is a process for remedying a contaminated soil characterized in that a contaminated region of the ground is purified by the steps of first freezing the contaminated region, then injecting to the same a microorganism and a liquid agent or gas which is required for a biological treatment using the microorganism's ability to decomposing a pollutant, to enable more efficient and rapid remediation.
摘要:
Apparatus and methods are disclosed for transferring a pattern defined by a mask onto a surface of a substrate. The apparatus includes an illumination optical system for illuminating the pattern on the mask. A projection optical system forms an erect image of the pattern on the substrate. For exposure, the mask and substrate are movable together in a scanning direction relative to the projection optical system. First and second relative-displacement measuring systems, the first being separated from the second by a predetermined distance perpendicular to the scanning direction, measure displacement of the mask relative to the substrate in the scanning direction. First and second detection systems detect displacement of the mask and substrate, respectively, in the direction perpendicular to the scanning direction. A position-adjusting system adjusts the position of at least one of the mask and substrate. A calculation system calculates a position-adjusting amount based on outputs from the first and second relative-displacement measuring systems and from the first and second detection systems. A control system controls the position-adjusting system based on an output from the calculation system.
摘要:
An exposure apparatus and an exposure method which minimize defocusing of the transferred pattern even with a large-sized mask. When the exposure apparatus is used which transfers the pattern formed on a first substrate through a substantially real-size projection optical system onto a second substrate, the positions of the mask and the substrate are detected, and based on the information on the positions the distance between the mask and the substrate is controlled to be substantially constant. According to the present invention, defocusing of the transferred pattern may be substantially avoided by detecting positions of the mask and the plate by making use of, e.g., an obliquely incident light focus detection optical system, and controlling the distance therebetween to be held constant or at a predetermined distance.
摘要:
The present invention provides a projection exposure apparatus comprising: a reticle stage; an illumination optical system for illuminating a reticle on the reticle stage; a stage on which a substrate is supported; and a projection optical system having a predetermined numerical aperture to project a pattern formed on the reticle and illuminated by the illumination optical system onto the substrate, and in which a longitudinal spherial aberration thereof regarding the focusing of the pattern formed on the reticle onto the substrate are excessively corrected.
摘要:
An active matrix cell includes a first conductor group formed on a transparent substrate, two-layered regions consisting of a semiconductor film and a first insulating film, a second insulating film and a second conductor group. The first conductor group forms the source and drain of a thin film transistor, pixel electrode, data line. One of the two-layered regions serves as an active region of the thin film transistor and the other of the two-layered regions serves as the intersection between the data and scanning lines. The second insulating film is buried in the gap between the two-layered regions and the first conductor group, and has substantially a same thickness as the two-layered regions. The second conductor group forms the scanning line and the part of the data line. A method of manufacturing the active matrix cell is also disclosed.
摘要:
Pattern detection and measurement comprises: first irradiation means for irradiating a workpiece with a first energy beam; detection means for receiving a second energy beam emitted from a portion of the workpiece irradiated by the first energy beam, thereby detecting a pattern in the irradiated portion; second irradiation means for irradiating the workpiece with a third energy beam; discrimination means for receiving a fourth energy beam emitted from a portion of the workpiece irradiated by the third energy beam, thereby discriminating whether the portion irradiated by the third energy beam is sensitive to the first energy beam; and control means for controlling, in response to the output of the discrimination means, the first energy beam in irradiating the sensitive portion, thereby preventing the damage of the sensitive portion by the first energy beam.