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    • 71. 发明公开
    • 빔처리장치
    • 光束加工设备
    • KR1020080094603A
    • 2008-10-23
    • KR1020080036012
    • 2008-04-18
    • 스미도모쥬기가이 이온 테크놀로지 가부시키가이샤
    • 츠키하라미츠쿠니가바사와미츠아키마츠시타히로시야기타다카노리아마노요시타카후지이요시토
    • H01J37/147H01J37/317
    • H01J37/3171H01J37/1477H01J2237/0042H01J2237/028
    • A beam processing apparatus is provided to enhance accuracy of parallel beam after ion beam scanning by maintaining constantly a diameter of ion beams irrespective of positions in a scanning area. A beam processing apparatus includes beam scanners(36A,36B) which perform deflection scanning that periodically varies orbits of charged particle beams using two polar type deflection scanning electrodes. The beam scanners include shield preventing electrode assemblies. The shield preventing electrode assemblies having a square shape aperture for penetrating the charged particle beams are disposed around upper and lower portions of the two polar type deflection scanning electrodes. Each of the shield preventing electrode assemblies includes one suppress electrode and two shield ground electrodes, which are formed at both sides of the suppress electrode. Forward and backward portions of the two polar type deflection scanning electrodes are shielded by the two shield ground electrodes.
    • 提供了一种束处理装置,用于通过恒定地维持离子束的直径而与扫描区域中的位置无关地增强离子束扫描之后的平行光束的精度。 光束处理装置包括光束扫描器(36A,36B),其执行使用两个极性型偏转扫描电极周期性地改变带电粒子束的轨道的偏转扫描。 光束扫描器包括屏蔽防止电极组件。 具有用于穿透带电粒子束的方形孔的防屏电极组件设置在两极极型偏转扫描电极的上部和下部。 每个屏蔽防止电极组件包括形成在抑制电极两侧的一个抑制电极和两个屏蔽接地电极。 两个极性型偏转扫描电极的正向和反向部分被两个屏蔽接地电极屏蔽。