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公开(公告)号:DE3780915D1
公开(公告)日:1992-09-10
申请号:DE3780915
申请日:1987-11-17
Applicant: IBM
Inventor: BLACK VINCENT JOSEPH , CHARSKY RONALD STEPHEN , OLSON LEONARD THEODORE
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公开(公告)号:DE3780915T2
公开(公告)日:1993-03-11
申请号:DE3780915
申请日:1987-11-17
Applicant: IBM
Inventor: BLACK VINCENT JOSEPH , CHARSKY RONALD STEPHEN , OLSON LEONARD THEODORE
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公开(公告)号:DE68914059T2
公开(公告)日:1994-10-20
申请号:DE68914059
申请日:1989-07-01
Applicant: IBM
Inventor: CHARSKY RONALD STEPHEN , OLSON LEONARD THEODORE , PAGNANI DAVID PETER
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公开(公告)号:DE68914059D1
公开(公告)日:1994-04-28
申请号:DE68914059
申请日:1989-07-01
Applicant: IBM
Inventor: CHARSKY RONALD STEPHEN , OLSON LEONARD THEODORE , PAGNANI DAVID PETER
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公开(公告)号:DE2861769D1
公开(公告)日:1982-06-09
申请号:DE2861769
申请日:1978-11-27
Applicant: IBM
Inventor: CHARSKY RONALD STEPHEN , FLAMHOLZ ALEXANDER LEON
Abstract: A system for measuring the lateral displacement between edges located on two spaced apart objects, with a precision in the order of 1 microinch, generates and analyses the diffraction pattern produced by the physical edge on one object and the aerial image of the edge on the other object. The system can be used for the alignment of the objects or the comparison of patterns located on the objects.
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公开(公告)号:DE2458807A1
公开(公告)日:1975-07-31
申请号:DE2458807
申请日:1974-12-12
Applicant: IBM
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