会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 111. 发明授权
    • Projection electronic microscope for reducing geometric aberration and space charge effect
    • 投影电子显微镜,用于减少几何像差和空间电荷效应
    • US07855364B2
    • 2010-12-21
    • US11944503
    • 2007-11-23
    • Weiming RenTakeshi Murakami
    • Weiming RenTakeshi Murakami
    • G01N23/00
    • H01J37/153H01J37/04H01J2237/04924H01J2237/1538
    • A projection electronic microscope is provided for improving geometric aberration and a space charge effect within a zooming range using a zoom type transfer lens system in a projection/image formation optical system. The projection electronic microscope comprises an irradiation system for emitting a primary electron beam irradiated to a sample, and a projection/image formation optical system for guiding a second electron beams emitted from the sample with the irradiation of the primary electron beam to a detection system. The projection/image formation optical system includes a zoom type transfer lens system having a first zoom lens and a second zoom lens. The first zoom lens includes a plurality of electrodes. A predetermined electrode of said plurality of electrodes is made thicker and is applied with a positive voltage to form a space having zero field strength and a high positive potential between said first zoom lens and said second zoom lens, and a cross-over by said first zoom lens is defined in said space within a zooming range.
    • 提供投影电子显微镜,用于在投影/图像形成光学系统中使用变焦型转印透镜系统来改善变焦范围内的几何像差和空间电荷效应。 投影电子显微镜包括用于发射照射到样品的一次电子束的照射系统,以及用于通过一次电子束的照射将从样品发射的第二电子束引导到检测系统的投影/图像形成光学系统。 投影/成像光学系统包括具有第一变焦透镜和第二变焦透镜的变焦型转印透镜系统。 第一变焦透镜包括多个电极。 所述多个电极中的预定电极被制成较厚的并且施加正电压以在所述第一变焦透镜和所述第二变焦透镜之间形成具有零场强和高正电位的空间,并且由所述第一 在变焦范围内在所述空间中定义变焦镜头。