发明名称 |
SAMPLE STAGE, AND MEASUREMENT, INSPECTION AND OBSERVATION APPARATUS INCLUDING SAMPLE STAGE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sample stage that stably performs positioning in high speed regardless of the presence of a dead band or the like. <P>SOLUTION: A sample stage comprises: a connection part by which connection between a table of the sample stage and a drive mechanism is capable of being divided mechanically; a control unit controlling the connection part so that the connection part is divided before stopping movement of the table by means of the drive mechanism; and a position detector detecting a table position. The control unit performs feedback control based on table position information from the position detector in coarse adjustment of the table. The control unit performs sequential control in which open control of the drive mechanism is performed using a preset velocity displacement pattern in fine adjustment. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012009237(A) |
申请公布日期 |
2012.01.12 |
申请号 |
JP20100143285 |
申请日期 |
2010.06.24 |
申请人 |
HITACHI HIGH-TECHNOLOGIES CORP |
发明人 |
GUNJI YOSHIRO |
分类号 |
H01J37/20;H01L21/027;H01L21/66;H01L21/68 |
主分类号 |
H01J37/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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