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    • 5. 发明申请
    • Displacement Device
    • 位移装置
    • US20080203828A1
    • 2008-08-28
    • US11814003
    • 2006-01-10
    • Johan Cornelis CompterPetrus Carolus Maria FrissenJan Van Eijk
    • Johan Cornelis CompterPetrus Carolus Maria FrissenJan Van Eijk
    • H02K41/00
    • G03F7/70758Y10S414/135
    • Especially for use in the semiconductor industry, a displacement device (701) is disclosed comprising a first part comprising a carrier (714) on which a system of magnets (710) is arranged according to a pattern of row and columns extending parallel to the X-direction and the Y-direction, respectively. The magnets in each row and column are arranged according to a Halbach array, i.e. the magnetic orientation of successive magnets in each row and each column rotates 90° counter-clockwise. The second part comprises an electric coil system (712) with two types of electric coils, one type having an angular offset of +45°, and the other type having an offset of −45° with respect to the X-direction. The first part (714, 710) is movable over a range of centimeters or more with respect to the stationary second part (712). For high precision positioning of the first part, an interferometer system (731, 730) is provided.
    • 特别是用于半导体工业中,公开了一种位移装置(701),其包括第一部分,该第一部分包括载体(714),磁体系统(710)根据平行于X的行和列的图案排列在其上 方向和Y方向。 每行和列中的磁体根据Halbach阵列布置,即每行中的连续磁体的磁性取向,并且每列逆时针旋转90°。 第二部分包括具有两种类型的电线圈的电线圈系统(712),一种类型的角偏移为+ 45°,另一种类型相对于X方向具有-45°的偏移。 第一部分(714,710)可相对于固定的第二部分(712)在一厘米或更多的范围内移动。 对于第一部分的高精度定位,提供了干涉仪系统(731,730)。