发明名称 Method and apparatus for processing the image of the surface of a wafer recorded by at least one camera
摘要 A method for processing the image data of the surface of a wafer (2) recorded by at least one camera (5) is disclosed, wherein an image field (15) is defined for each camera (5) in such a way that the recorded image content is repeated after N recorded images. In an evaluation electronics (18) M utility programs (19) are determined, wherein M is equal to the number of recorded images after which the image content is repeated. The number M of utility programs (19) is adapted to the number N of images. Each of the M utility programs (19) of the plurality of recorded images is only fed with images having the same image contents in order to detect defects on the basis of the image contents of the images of the surface of the wafer. The results of the M utility programs (19) are respectively forwarded to a central program (20) in a sequential manner, which compiles a distribution of the defects present on the surface of the wafer (2) from the individual results of the M utility programs (19).
申请公布号 US2009153657(A1) 申请公布日期 2009.06.18
申请号 US20080315589 申请日期 2008.12.04
申请人 VISTEC SEMICONDUCTOR SYSTEMS GMBH 发明人 MICHELSSON DETLEF
分类号 H04N7/18;G06K9/00 主分类号 H04N7/18
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