摘要:
An exposure apparatus generates an interlock signal to stop an exposure process when defocus is detected in real time. Leveling data for at least one wafer, and a predetermined threshold value are stored in a memory of the exposure apparatus. A value indicative of the defocus is calculated from the leveling data. An interlock signal is generated if the result of comparing the defocus value and the threshold value reveals that the focus of a lens of the exposure apparatus is outside an acceptable range.
摘要:
An exposure apparatus generates an interlock signal to stop an exposure process when defocus is detected in real time. Leveling data for at least one wafer, and a predetermined threshold value are stored in a memory of the exposure apparatus. A value indicative of the defocus is calculated from the leveling data. An interlock signal is generated if the result of comparing the defocus value and the threshold value reveals that the focus of a lens of the exposure apparatus is outside an acceptable range.
摘要:
A method for providing a guide for augmented reality object recognition includes acquiring image information, analyzing an object corresponding to the image information, and outputting object recognition guide information according to a result of analyzing the object. An apparatus to provide a guide for augmented reality object recognition includes an image acquisition unit to acquire and output image information, and a control unit to analyze an object corresponding to the image information and to output object recognition guide information according to a result of analyzing the object.