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公开(公告)号:AU7067600A
公开(公告)日:2001-03-26
申请号:AU7067600
申请日:2000-08-22
Applicant: CANDESCENT TECH CORP
Inventor: FIELD JOHN E , ELLOWAY DONALD J , PONG CHUNGDEE
Abstract: Scattered or/and transmitted light is employed to determine characteristics, including dimensional information, of an object (60) such as part (10) of a flat-panel display. The dimensional information includes the average diameter of openings (62) in the object, the average density of the openings, and the average thickness of a layer (64) of the object. Light-diffraction patterns are produced to determine characteristics, such as abnormalities (146 and 148), of crossing lines (140 and 142) in such an object.
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公开(公告)号:AT237869T
公开(公告)日:2003-05-15
申请号:AT95940804
申请日:1995-11-20
Applicant: CANDESCENT TECH CORP
Inventor: SPINDT CHRISTOPHER J , FIELD JOHN E , HAVEN DUANE A , PONG CHUNGDEE
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