Particle optical apparatus and method of operating the same
    11.
    发明专利
    Particle optical apparatus and method of operating the same 审中-公开
    颗粒光学装置及其操作方法

    公开(公告)号:JP2004134382A

    公开(公告)日:2004-04-30

    申请号:JP2003285166

    申请日:2003-08-01

    Inventor: CLAUSS WILFRIED

    CPC classification number: H01J37/1475

    Abstract: PROBLEM TO BE SOLVED: To provide an electron microscope system or a lithography system which achieves relatively good imaging properties by reducing the influence on charged particle beams by a change in temperature of a magnetic flux transmission body in a particle optical apparatus equipped with the magnetic flux transmission body such as ferrite.
    SOLUTION: The particle optical apparatus 2 for supplying a magnetic field for operating charged particles includes the magnetic flux transmission body 45 formed of a material having a high permeability, and a current conductor 47 which is partially engaged with the magnetic flux transmission body 45 around the same. A temperature adjustment section 49 adjusts the temperature of the magnetic flux transmission body 45 to a nearly nominal temperature in a range which satisfies the formula c -3 K
    -1 , where (μmax-μmin)/(μmax×ΔT)=c, ΔT is a margin of the temperature range, μmax is the maximum value of the permeability, and μmin is the minimum value of the permeability.
    COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题:提供一种电子显微镜系统或光刻系统,其通过在装备有粒子光学装置的粒子光学装置中通过磁通透射体的温度变化来减小对带电粒子束的影响而实现相对良好的成像性能 磁通传递体如铁氧体。 解决方案:用于提供用于操作带电粒子的磁场的粒子光学装置2包括由具有高磁导率的材料形成的磁通量透射体45和与磁通量传递体部分接合的电流导体47 45左右相同。 温度调节部分49将满足公式c <3×10 -3 K -1 ,其中(μmax-μmin)/(μmax×ΔT)= c,ΔT是温度范围的余量,μmax是磁导率的最大值,μmin是磁导率的最小值。 版权所有(C)2004,JPO

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