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    • 8. 发明专利
    • System for electrically connecting mask to earth and mask
    • 将面罩电气连接到接地面罩的系统
    • JP2007013149A
    • 2007-01-18
    • JP2006176008
    • 2006-06-27
    • Asml Netherlands Bvエーエスエムエル ネザーランズ ビー.ブイ.
    • MEIJER HENDRICUS JOHANNES MARIMICKAN UWEKLUSE MARCO LE
    • H01L21/027G03F1/16
    • G03F7/70941B82Y10/00B82Y40/00G03F1/24G03F1/38G03F1/40G03F7/707G03F7/70708G21K2201/06
    • PROBLEM TO BE SOLVED: To provide an earthing system and a mask avoiding such a problem that particles may be generated due to damage to a conductive coating by a conducting pin used for grounding a mask surface, in order to avoid errors caused by electrostatic charging during making a reflective mask for a lithographic apparatus using extreme ultraviolet radiation (EUV) and using the mask for an EUV lithographic apparatus.
      SOLUTION: This system comprises a conductor CN connected to the earth and formed in such a manner as to make electric contact with a conductive coating 50 covering at least a part of a mask MA. This conductive coating comprises a layer comprising a metal-based compound. The conductive coating of the metal-based compound has sufficiently high conductivity, shows high hardness and high chemical stability, and possesses wear resistance. Accordingly, there are few possibilities of generating particles due to the damage to the coating by pressure applied on the conductor CN.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供接地系统和掩模,避免了由于用于使掩模表面接地的导电针导致的导电性涂层的损坏而可能产生颗粒的问题,以避免由于 在制造用于使用极紫外辐射(EUV)的光刻设备的反射掩模和使用用于EUV光刻设备的掩模时的静电充电。 解决方案:该系统包括连接到地球并且以与覆盖掩模MA的至少一部分的导电涂层50进行电接触的方式形成的导体CN。 该导电涂层包括包含金属基化合物的层。 金属类化合物的导电性涂层具有足够高的导电性,显示出高的硬度和高的化学稳定性,并且具有耐磨性。 因此,由于施加在导体CN上的压力对涂层的损伤,几乎没有产生颗粒的可能性。 版权所有(C)2007,JPO&INPIT