发明名称 Method for setting a position of a carrier element in a particle beam device
摘要 A method is provided for setting a position of a carrier element, arranged in a particle beam device, that holds an object. The particle beam device has a beam generator for generating a particle beam and an objective for focusing the particle beam. The carrier element is movable using a first stepper motor. A movement of the carrier element is started by actuating the first stepper motor using a first motor current in the form of an alternating current. The first motor current is set to a first frequency and a first amplitude. The movement of the carrier element is decelerated by reducing the first frequency and by reducing the first amplitude of the first motor current. The first frequency is reduced to zero during a first period of time. The first amplitude is reduced to an amplitude of a first holding current during the first period of time.
申请公布号 US8704195(B2) 申请公布日期 2014.04.22
申请号 US201313854187 申请日期 2013.04.01
申请人 CARL ZEISS MICROSCOPY GMBH 发明人 KNAPPICH MATTHIAS
分类号 H01J37/20 主分类号 H01J37/20
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