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    • 5. 发明授权
    • Plasma processing apparatus
    • 等离子体处理装置
    • US6033481A
    • 2000-03-07
    • US225971
    • 1999-01-06
    • Ken'etsu YokogawaTetsuo OnoKazunori TsujimotoNaoshi ItabashiMasahito MoriShinichi TachiKeizo Suzuki
    • Ken'etsu YokogawaTetsuo OnoKazunori TsujimotoNaoshi ItabashiMasahito MoriShinichi TachiKeizo Suzuki
    • C23C16/00H01J37/32
    • H01J37/3222H01J37/32082H01J37/32678H01J2237/3341
    • A plasma processing apparatus in which power consumption is reduced, which can generate uniform plasma in a large range and in which minute processing in high etching selectivity and in high aspect ratio is enabled is disclosed. High density plasma is generated in a vacuum vessel housing a processed sample utilizing an electron cyclotron resonance phenomenon caused by an electromagnetic wave in an ultra-high frequency band and a magnetic field and the surface of the processed sample is etched using this plasma. An electromagnetic wave in an ultra-high frequency band for generating plasma is radiated from a planar conductive plate consisting of graphite or silicon which is arranged opposite to the surface of the processed sample into space inside the vacuum vessel. High density plasma in the low degree of dissociation can be generated by using an electromagnetic wave in an ultra-high frequency band and as a result, the controllability of etching reaction can be enhanced. Further, a radical effective in etching can be increased by reaction between the surface of a planar conductive plate for radiating an electromagnetic wave and plasma.
    • 公开了能够在大范围内产生均匀的等离子体并能够实现高蚀刻选择性和高纵横比的微小加工的功耗降低的等离子体处理装置。 利用由超高频带和磁场中的电磁波引起的电子回旋共振现象,在容纳加工样品的真空容器中产生高密度等离子体,并且使用该等离子体蚀刻处理样品的表面。 用于产生等离子体的超高频带中的电磁波从由石墨或硅组成的平面导电板辐射,该导电板与被处理样品的表面相对地设置在真空容器内部的空间中。 通过在超高频带中使用电磁波可以产生低解离度的高密度等离子体,结果可以提高蚀刻反应的可控性。 此外,通过用于辐射电磁波的平面导电板的表面与等离子体之间的反应可以增加蚀刻中有效的自由基。
    • 6. 发明授权
    • Surface analyzing method and its apparatus
    • 表面分析方法及其装置
    • US5714757A
    • 1998-02-03
    • US542562
    • 1995-10-13
    • Naoshi ItabashiKozo MochijiHiroyasu ShichiSeiji YamamotoSatoshi OsabeKeiichi Kanehori
    • Naoshi ItabashiKozo MochijiHiroyasu ShichiSeiji YamamotoSatoshi OsabeKeiichi Kanehori
    • G01N23/225G01Q90/00H01J37/252H01J37/08
    • G01N23/2255H01J37/252H01J2237/04756
    • A surface analyzing method comprising an ion generation step for generating multiply-charged ions of specific ion species and specific charge state; a deceleration step for decelerating the generated multiply-charged ions to a lower kinetic energy than an energy of threshold of sputtering of an objective material; an irradiation step for irradiating the decelerated multiply-charged ions on the surface of a sample; and an analysis step for analyzing particles or light emitted from the surface of said sample by the irradiation of said multiply-charged ions. Apparatus is provided for carrying out the method. Since the ions irradiated on the sample surface are multiply-charged ions having a lower kinetic energy than that of threshold of sputtering of materials constituting a sample, the irradiated ions interact merely with the top surface layer of the sample whereby analyzed information merely from the top surface layer of the sample can be obtained, and as a result, the kind of atoms of the top surface layer of the sample and the bonding state of said atoms can be analyzed with high sensitivity and high resolution.
    • 一种表面分析方法,包括用于产生特定离子种类的多电荷离子和特定电荷状态的离子产生步骤; 减速步骤,用于将产生的多电荷离子减速到比目标材料的溅射阈值的能量更低的动能; 照射步骤,用于在样品的表面上照射减速的多电荷离子; 以及分析步骤,用于通过照射所述多电荷离子来分析从所述样品的表面发射的颗粒或光。 提供了用于执行该方法的装置。 由于照射在样品表面上的离子是具有比构成样品的材料的溅射阈值低的动能的多电荷离子,因此照射的离子仅与样品的顶表面层相互作用,从而仅从顶部分析信息 可以获得样品的表面层,结果,可以以高灵敏度和高分辨率分析样品的顶表面层的原子的种类和所述原子的键合状态。