Invention Grant
US07804993B2 Method and apparatus for detecting defects in wafers including alignment of the wafer images so as to induce the same smear in all images 有权
用于检测晶片中的缺陷的方法和装置,包括晶片图像的对准,以便在所有图像中引起相同的涂片

Method and apparatus for detecting defects in wafers including alignment of the wafer images so as to induce the same smear in all images
Abstract:
A method for inspecting a wafer including a multiplicity of dies, the method including dividing an image of at least a portion of the wafer into a plurality of sub-images each representing a sub-portion of the wafer and selecting at least one defect candidate within each sub-image by comparing each sub-image to a corresponding sub-image of a reference including a representation, which is assumed to be faultless, of the portion of the wafer.
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