摘要:
The present invention enables provision of a defect observation device that reduces wait time from an end of pickup of a reference image and accompanying processing to a start of pickup of a defect image compared to conventional ones by making a pixel count resolution of the reference image be low compared to a pixel count of the defect image in an image pickup unit using an electronic microscope for automatic fine defect classification, whereby a throughput enhanced compared to those of conventional ones can be achieved.
摘要:
A method of observing a specimen using a scanning electron microscope, makes it possible to shorten the time required to perform automatic focusing at the time of semiconductor defect automatic review and improves the throughput in the processing in which the specimen is observed. In the above method, the specimen is imaged at a low resolution by the scanning electron microscope to obtain an image, an area for imaging the specimen at a high resolution is specified from the image acquired at the low resolution, the specimen is imaged at a high resolution by the scanning electron microscope to determine a focus position, a focal point of the scanning electron microscope is set to the determined focus position, and a high resolution image in the specified area is acquired in a state in which the focus position has been set to the determined focus position.
摘要:
This SEM has a capability of preventing shift of a view field of the foreign matters at a stage where no sufficient correction is carried out when obtaining the SEM coordinate values used for transforming the coordinate values of the foreign matters on the sample sent from another device into the SEM coordinate values. The SEM selects the foreign matters closer to the center of the sample at first and then the foreign matters spirally from the center of the sample to the outer periphery.
摘要:
In a scanning electron microscope having the function of observing an attentional object on a specimen, an error in an in-focus position can be corrected at high speeds. When moving the field of view to an object to be observed on a specimen on which an electron beam is scanned, an error between an in-focus position indicated by a mechanism for measuring a height of surface of the specimen and an actual in-focus position is corrected on the basis of information concerning points which are among a plurality of measured points and are adjacent to the target observing point.
摘要:
A method of observing a specimen using a scanning electron microscope, makes it possible to shorten the time required to perform automatic focusing at the time of semiconductor defect automatic review and improves the throughput in the processing in which the specimen is observed. In the above method, the specimen is imaged at a low resolution by the scanning electron microscope to obtain an image, an area for imaging the specimen at a high resolution is specified from the image acquired at the low resolution, the specimen is imaged at a high resolution by the scanning electron microscope to determine a focus position, a focal point of the scanning electron microscope is set to the determined focus position, and a high resolution image in the specified area is acquired in a state in which the focus position has been set to the determined focus position.
摘要:
In a scanning electron microscope having the function of observing an attentional object on a specimen, an error in an in-focus position can be corrected at high speeds. When moving the field of view to an object to be observed on a specimen on which an electron beam is scanned, an error between an in-focus position indicated by a mechanism for measuring a height of surface of the specimen and an actual in-focus position is corrected on the basis of information concerning points which are among a plurality of measured points and are adjacent to the target observing point.
摘要:
This SEM has a capability of preventing shift of a view field of the foreign matters at a stage where no sufficient correction is carried out when obtaining the SEM coordinate values used for transforming the coordinate values of the foreign matters on the sample sent from another device into the SEM coordinate values. The SEM selects the foreign matters closer to the center of the sample at first and then the foreign matters spirally from the center of the sample to the outer periphery.
摘要:
A technology whereby removal of magnetic hysteresis is enabled in short time in parallel with a process for stage transfer, and so forth. There is executed a magnetic hysteresis removal sequence whereby current for exciting an electromagnetic coil prior to acquisition of an image is always set to a predetermined variation value against a target value, thereby obtaining information on an image, and so forth, when a diameter of a primary electron beam, converged on the specimen, becomes smaller than dimensions displayed by one pixel of an image to be acquired.
摘要:
A fiber treatment agent contains components (a) and (b). A fiber treated with the fiber treatment agent and a fiber fabric including the fiber are also provided. The component (a) an insoluble egg-shell membrane fine powder with a mean particle size of 0.1 to 10 μm while the component (b) is a synthetic resin emulsion or a synthetic resin solution.