摘要:
A surface inspection apparatus and a surface inspection method aim to securely deal with finer repetition pitch without shortening the wavelength of illumination light. To this end, the apparatus includes a unit illuminating repetitive pattern(s) formed on the substrate surface to be inspected with linearly polarized light, a unit setting to an oblique angle an angle between the direction of an intersecting line of a vibration plane of the linearly polarized light on the substrate surface and the repetition direction of repetitive pattern(s), a unit extracting a polarized light component perpendicular to the vibration plane of the linearly polarized light, from light having been emitted from the repetitive pattern(s) in a specular direction, and a unit detecting a defect of the repetitive pattern(s) according to the light intensity of the polarized light component.
摘要:
A surface inspection apparatus of the present invention comprises: an illumination optical system 100 which is fixed at a first predetermined angle with respect to a wafer 3 and which irradiates a substantially parallel illuminating light toward the entire surface of the wafer 3; an image pickup device 6 which is fixed at a second predetermined angle with respect to the wafer 3 and which receives diffracted light or scattered light from the wafer 3 and projects an image of the wafer; and an image processing apparatus 7 which performs a macro inspection by taking the image signal generated by the image pickup device 6 and carrying out image processing, and is further provided with a plurality of interference filters F1˜F4 to enable the variable setting of the wavelength of the illuminating light from the illumination optical system 100. In this apparatus, macro inspections can be carried out efficiently on a variety of objects while apparatus such as the illumination apparatus and the image projection apparatus are maintained in fixed positions.
摘要:
Position-detection apparatus (alignment sensors) are disclosed for determining the position of an object (e.g., wafer, bearing a position-detection mark) as required in microlithography processes for manufacturing semiconductor devices and displays. The apparatus comprises an irradiation optical system, a condenser optical system, a first photoelectric detector, a fiducial body bearing a fiducial mark, a combining optical system, a second photoelectric detector, and a processor. The position-detection and fiducial marks are illuminated with coherent illumination light from the irradiation optical system. Light diffracted from the marks is condensed by the condenser optical system. The first photoelectric detector receives the condensed diffracted light and produces first electrical signals. The combining optical system receives the diffracted light from the fiducial mark. The second photoelectric detector receives multiple diffracted light beams from the fiducial mark and produces second electrical signals. From the electrical signals, the processor determines the position of the position-detection mark relative to the fiducial mark.
摘要:
A measuring device includes a light-sending part sending light in a first direction which is a depth direction of a hollow shape, a conversion part converting a direction of the light into a circumference direction approximately orthogonal to the first direction, a detection part detecting light reflected inside a measuring object, the direction of which is converted by the conversion part, and a shape measurement part measuring an inside shape of the measuring object by obtaining a shift from a reference position according to a detection result of the detection part. Thereby, it is possible to obtain the hollow shape of an object at one time without a need of rotating the object or a light source, and to carry out a highly accurate measurement using a simple device.
摘要:
A microscope includes a microscope optical system that forms an enlarged image of an observation position by an immersion objective lens with an immersion liquid is filled between the observation position and the objective lens, a moving mechanism that moves a state that a first observation position among a plurality of observation positions on a substrate is positioned in a field of view of the microscope to another state that a second observation position is positioned in the field of view of the microscope, an immersion supplier that supplies the immersion liquid to fill between the objective lens and the observation position, an immersion remover that removes the immersion liquid filled between the objective lens and the observation position, and an immersion remove controller that makes the immersion remover remove the immersion liquid before operating the moving mechanism.
摘要:
The present invention aims of preventing a diffracted light, in testing to detect a foreign substance or a flaw on a tested substrate having a repeated pattern, from entering the eye of the observer or a light receiving optical system to be hindrance to the defect test, by providing a defect testing apparatus which comprising: a light source; an illumination optical system for applying a light flux from the light source onto a tested substrate having a repeated pattern at a predetermined angle of incidence; a light receiving optical system for receiving a scattered light from the tested substrate; an image pick-up device for picking up an image formed by the light receiving optical system; a display device for displaying the image obtained by the image pick-up device; and a test stage for mounting the tested substrate thereon at the time of testing, wherein the tested substrate and the illumination optical system are arranged to be rotatable relatively to each other.
摘要:
A data storage device is provided. At least a storage section configured to store information therein and a connection terminal configured to transmit information are mounted on a substrate. A casing accommodates the substrate, the casing is formed with an opening to expose a connection portion of the connection terminal to the outside. A shield plate configured to shield the opening of the casing. A shield plate actuation mechanism is configured to detect a connection state between the connection terminal and a receiving terminal to which the connection terminal is connected and actuate the shield plate. The shield plate actuation mechanism actuates the shield plate to shield the opening when the shield plate actuation mechanism detects that the connection terminal is separated from the receiving terminal.
摘要:
A surface inspection apparatus and a surface inspection method aim to securely deal with finer repetition pitch without shortening the wavelength of illumination light. To this end, the apparatus includes a unit illuminating repetitive pattern(s) formed on the substrate surface to be inspected with linearly polarized light, a unit setting to an oblique angle an angle between the direction of an intersecting line of a vibration plane of the linearly polarized light on the substrate surface and the repetition direction of repetitive pattern(s), a unit extracting a polarized light component perpendicular to the vibration plane of the linearly polarized light, from light having been emitted from the repetitive pattern(s) in a specular direction, and a unit detecting a defect of the repetitive pattern(s) according to the light intensity of the polarized light component.
摘要:
A wiping apparatus has a cover box which covers at least a feeding reel, a take-up reel, a wiping member and a spray head, as well as a sheet-feeding passage for the wiping sheet. The passage extends from the feeding reel to the take-up reel. The cover box has formed therein a member opening through which the wiping member protrudes.
摘要:
An image detection apparatus (10) having an illumination system (IS) irradiates light onto the surface (30S) of an object 30 to be inspected for defects. A detection optical system (34) condenses the light from the surface and forms an image of the surface on an image detector (48). The detection optical system includes a receiving mirror (38) having an optical axis (A.sub.38) that intersects the reference optical axis (A.sub.34) of the detection optical system. A processing apparatus (60) includes a processing system (62) that performs image processing based on an output from the detector corresponding to the image. The processing system includes an image distortion correction unit (62a) for eliminating the effects of distortion in the image of the surface generated by the inclination of the surface with respect to the reference optical axis and the receiving mirror.