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公开(公告)号:NL2011658A
公开(公告)日:2014-04-29
申请号:NL2011658
申请日:2013-10-22
Applicant: ASML NETHERLANDS BV
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公开(公告)号:NL2009196A
公开(公告)日:2013-02-27
申请号:NL2009196
申请日:2012-07-17
Applicant: ASML NETHERLANDS BV
Inventor: KOENEN WILLEM , EUSSEN EMIEL , PASCH ENGELBERTUS , LEEUWEN ROBBERT , KOEVOETS ADRIANUS
Abstract: A position measurement system includes a first part and a second part for determining a position of a first member relative to a second member by providing a position signal representing a position of the first part relative to the second part, and a computational unit comprising an input terminal for receiving the position signal. The computational unit is configured to, in use, apply a conversion to the position signal to obtain a signal representing a position of the first member relative to the second member; and apply an adjustment to the conversion to at least partly compensate for a drift of the first part or the second part or both. The adjustment is based on a predetermined drift characteristic of the first part or the second part or both respectively. The predetermined drift characteristic includes one or more base shapes of the first part and/or the second part.
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公开(公告)号:NL2006149A
公开(公告)日:2011-09-13
申请号:NL2006149
申请日:2011-02-07
Applicant: ASML NETHERLANDS BV
Inventor: KOENEN WILLEM , EUSSEN EMIEL , PASCH ENGELBERTUS
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公开(公告)号:NL2006804A
公开(公告)日:2011-12-28
申请号:NL2006804
申请日:2011-05-18
Applicant: ASML NETHERLANDS BV
Inventor: COX HENRIKUS , KOENEN WILLEM , MATTAAR THOMAS , PIETERSE MARTINUS THEODORUS JACOBUS , VERKOOIJEN ROB ANTONIUS ANDRIES
Abstract: A measurement system is configured to derive a position quantity of an object, the measurement system includes at least one position quantity sensor configured to provide respective position quantity measurement signals; a position quantity calculator configured to determine a position quantity of the object from the position quantity measurement signal, wherein the position quantity calculator includes a torsion estimator configured to estimate a torsion of the object, the position quantity calculator being configured to correct the determined position quantity of the object for the estimated torsion.
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公开(公告)号:NL2006057A
公开(公告)日:2011-08-25
申请号:NL2006057
申请日:2011-01-25
Applicant: ASML NETHERLANDS BV
Inventor: BUTLER HANS , EUSSEN EMIEL , KOENEN WILLEM , PASCH ENGELBERTUS , SCHOOT HARMEN , WIJST MARC , VERMEULEN MARCUS , HOON CORNELIUS
Abstract: A lithographic apparatus includes a stage to hold an object, the stage being moveable relative to a reference structure in a motion range; a magnet structure to provide a spatially varying magnetic field in at least a part of the motion range, the magnet structure being moveable relative to the reference structure and the stage; a first position measurement system to provide a first measurement signal corresponding to a position of the stage and/or the object in a measurement direction relative to the reference structure; a second position measurement system to provide a second measurement signal corresponding to a position of the stage relative to the magnet structure; and a data processor to correct the first measurement signal with a value dependent on the second measurement signal to provide a corrected first measurement signal representative of the position of the stage and/or the object relative to the reference structure in the measurement direction.
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