摘要:
An inspection method and an inspection device, or apparatus each capable of conducting composition analysis of a defect detected by elastic or stokes scattered light, an inspection surface or defect on the surface of the inspection surface, or a defect on the surface of the inspection object and its internal composition. A surface inspection method for optically detecting elastic or stokes scattering or inelastic or anti-stokes scattered light from inside the surface of the inspection object, for detecting existence of defects of the inspection object and features of the defects, for detecting positions of the detected defects on the surface of the inspection object, classifying and analyzing the detected defects in accordance with their features on the basis of the positions of the defects and the features of the defects or the classification result of the defects.
摘要:
The invention provides a mini environment apparatus, an inspection apparatus, a manufacturing apparatus and a cleaning method of a space which can suppress an influence of a cleanliness of an external environment and can keep a target cleanliness of a specific space. The invention is provided with an outer dust collecting filter 3a for covering an intake port 2b of a casing 2, an outer fan 3b for flowing an air from an external environment into the casing 2 via the outer dust collecting filter 3a, a clean chamber 4a arranged within the casing 2 and having an intake port 4b facing to a space within the casing 2, an inner dust collecting filter 5a for covering the intake port 4b, an inner fan 5b for flowing the air within the casing 2 into the clean chamber 4a via the inner dust collecting filter 5a, a pressure gauge 6a measuring a pressure in an external environment of the casing 2, a pressure gauge 6b measuring a pressure within the casing 2, a pressure gauge 6c measuring a pressure within the clean chamber 4a, and a control unit 7 for controlling rotating speeds of the fans 3a, 5a in such a manner that a measured pressure Pb within the casing 2 becomes higher at a set value P1 than a measured pressure Pa in the external environment, and a measured pressure Pc within the clean chamber 4a becomes higher at a set value P2 than the measured pressure Pb within the casing 2.
摘要翻译:本发明提供了能够抑制外部环境的清洁度的影响的空间的微型环境装置,检查装置,制造装置和清洁方法,并且能够保持目标的特定空间的清洁度。 本发明设置有用于覆盖壳体2的进气口2b的外部集尘过滤器3a和用于使外部空气从外部环境经由外部集尘过滤器3a流入壳体2的外部风扇3b, 布置在壳体2内并且具有面向壳体2内的空间的进气口4b的清洁室4a,用于覆盖进气口4b的内部集尘过滤器5a,用于使空气流动的内部风扇5b 在壳体2内通过内部集尘过滤器5a进入清洁室4a,测量外壳2的外部环境中的压力的压力表6a,测量壳体2内的压力的压力计6b; 测量清洁室4a内的压力的压力表6c和用于控制风扇3a,5a的转速的控制单元7,使得壳体2内的测量压力Pb以设定值变高 P 1比外部环境中的测量压力Pa 并且清洁室4a内的测量压力Pc在设定值P 2下比在壳体2内测量的压力Pb高。
摘要:
The present invention provides an inspection apparatus and inspection method. The inspection apparatus provided by the present invention comprises an illumination optical system which illuminates light to an object under inspection; a detection optical system which detects light reflected from said object and converts the detected light into an image signal; a spatial filter which is provided in said detection optical system to selectively shield diffracted light pattern coming from a circuit pattern existing on the object by combining light-shielding points of minute dots state; an arithmetic processing system which processes the image signal detected by said detection optical system; and a monitor which observes foreign matters/defects based on a signal processed by said arithmetic processing system.
摘要:
A defect inspection method includes an illumination light adjustment step of adjusting light emitted from a light source, an illumination intensity distribution control step of forming light flux obtained in the illumination light adjustment step into desired illumination intensity distribution, a sample scanning step of displacing a sample in a direction substantially perpendicular to a longitudinal direction of the illumination intensity distribution, a scattered light detection step of counting the number of photons of scattered light emitted from plural small areas in an area irradiated with illumination light to produce plural scattered light detection signals corresponding to the plural small areas, a defect judgment step of processing the plural scattered light detection signals to judge presence of a defect, a defect dimension judgment step of judging dimensions of the defect in each place in which the defect is judged to be present and a display step of displaying a position on sample surface and the dimensions of the defect in each place in which the defect is judged to be present.
摘要:
A system and method for determining measurement results of a dark-field inspection apparatus up to a microscopic area. A dark-field inspection apparatus is calibrated using a reference wafer having microroughness of an irregular asperity pattern accurately formed on a surface, and the microroughness of the surface having an ensured microroughness degree. This microroughness is measured by using an AFM, and an expected haze value is obtained based on the measured value. Then, haze of the surface of the reference wafer is measured by the dark-field inspection apparatus to be inspected to obtain an actually-measured haze value, and a difference between the expected haze value and the actually-measured haze value is obtained. Based on this difference, a haze measurement parameter of the dark-field inspection apparatus is adjusted so that the actually-measured haze value and the expected haze value match each other.
摘要:
The detection part has: a subtraction module for calculating correction data from data of detection systems when a reference-voltage generation module applies a reference voltage to the detection systems; a data-holding module for holding the correction data; an addition module for making a correction of detection data; a comparison module for comparing the detection data with switching data; and a selector for switching data of the detection systems including data subjected to the correction according to the output of the comparison module.
摘要:
A semiconductor wafer, which is an inspection object, is stuck by vacuum on a chuck and this chuck is mounted on an inspection object movement stage consisting of a rotational stage and a translational stage, located on a Z-stage. The rotational stage provides a rotational movement and the translational stage provides a translational movement. And when a foreign particle or a defect on an inspection object surface is detected, the parameter of digital filtering is dynamically changed during inspection, and the foreign particle or the defect is differentiated using the result after removing a low frequency fluctuation component to be a noise component.
摘要:
An inspecting apparatus and method including first and second illuminating units for illuminating a surface of a specimen to be inspected with different incident angles and first and second detecting optical units arranged at different elevation angle directions to the surface of the specimen for detecting images of the specimen illuminated by the first and second illuminating units.
摘要:
The present invention is an apparatus for inspecting foreign particles/defects, comprises an illumination optical system, a detection optical system, a shielding unit which is provided in said detection optical system to selectively shield diffracted light pattern coming from circuit pattern existing on an inspection object and an arithmetic processing system, wherein said shielding unit comprises a micro-mirror array device or a reflected type liquid crystal, or a transmission type liquid crystal, or an object which is transferred a shielding pattern to an optical transparent substrate, or a substrate or a film which is etched so as to leave shielding patterns, or an optical transparent substrate which can be changed in transmission by heating, sudden cold, or light illumination, or change of electric field or magnetic field, or a shielding plate of cylindrical shape or plate shape.
摘要:
An apparatus for inspecting a pattern to detect a small pattern defect has an illuminating light source, as illuminating optical system having a plurality of illuminating portions for switching an optical path of illuminating light flux to a surface of board constituting the inspected object from a plurality of directions different from each other, a detecting optical system having a variable magnification using an object lens for condensing reflected diffracted light from the illuminated board, a focusing optical system having a variable magnification capable of focusing an optical image by converged reflected diffracted light with a desired focusing magnification and an optical detector for detecting the optical image focused by the focusing optical system to convert it into an image signal, an A/D converter for converting the image signal into a digital image signal, and an image signal processor for processing the digital image signal to detect the defect.