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    • 1. 发明授权
    • Photomultiplier tube optimized for surface inspection in the ultraviolet
    • 光电倍增管优化用于紫外线的表面检测
    • US08629384B1
    • 2014-01-14
    • US12910230
    • 2010-10-22
    • Stephen BiellakDaniel KavaldjievStuart Friedman
    • Stephen BiellakDaniel KavaldjievStuart Friedman
    • H01J40/14H01J40/00H01J40/06
    • H01J43/28
    • Disclosed herein is a PhotoMultiplier Tube (PMT) designed for use with a surface inspection system such as the Surfscan system, which operates at 266 nm wavelength. The inventive PMT is high efficiency, low noise, and low gain, a combination of features that is specific to the application and contrary to the features of PMT's in the art. The inventive PMT is designed to be tuned to a specific narrow band wavelength of incident light, thereby optimizing the QE at that wavelength. It is further designed to combine a small number of dynodes each having substantially higher secondary electron gain than typical dynodes. By designing the PMT in this way, the excess noise factor is dramatically reduced, yielding a much improved S/N, while still maintaining the overall PMT gain in the lower range suitable for use in a surface inspection system.
    • 本文公开了一种设计用于诸如Surfscan系统的表面检查系统的光电倍增管(PMT),其在266nm波长下操作。 本发明的PMT具有高效率,低噪声和低增益,这是特定于应用并且与本领域的PMT的特征相反的特征的组合。 本发明的PMT被设计成调谐到入射光的特定窄带波长,从而优化该波长处的QE。 它还被设计成组合少量的具有比典型倍增电极具有显着更高的二次电子增益的倍增电极。 通过以这种方式设计PMT,过多的噪声系数大大降低,产生了大大改善的S / N,同时仍将PMT增益保持在适用于表面检测系统的较低范围内。
    • 5. 发明授权
    • Spheroidal charged particle energy analysers
    • 球形带电粒子能量分析仪
    • US08373122B2
    • 2013-02-12
    • US12739513
    • 2008-03-31
    • Nikolay Alekseevich KholineDane CubricIkuo Konishi
    • Nikolay Alekseevich KholineDane CubricIkuo Konishi
    • H01J40/00
    • H01J49/484
    • Charged particle energy analysers enabling simultaneous high transmission and energy resolution are described. The analysers have an electrode structure (11) comprising coaxial inner and outer electrodes (14, 15) having inner and outer electrode surfaces (IS, OS) respectively. The inner and outer electrode surfaces are defined, at least in part, by spheroidal surfaces having meridonal planes of symmetry orthogonal to a longitudinal axis of the electrode structure (11). The inner and outer electrode surfaces are generated by rotation, about the longitudinal axis, of arcs of two non-concentric circles having different radii R2 and R1 respectively, R2 being greater than R1. The distance of the outer electrode surface from the longitudinal axis in the respective meridonal plane is R01 and the distance of the inner electrode surface from the longitudinal axis in the respective plane is R02 and R1, R2, R01 and R02 have a defined relationship.
    • 描述了实现同时高传输和能量分辨率的带电粒子能量分析器。 分析仪具有分别具有内外电极表面(IS,OS)的同轴内外电极(14,15)的电极结构(11)。 内电极表面和外电极表面至少部分地由具有与电极结构(11)的纵向轴线正交的对称面对称平面的球形表面限定。 内电极表面和外电极表面分别通过具有不同半径R2和R1的两个非同心圆的圆弧的纵轴旋转产生,R2大于R1。 外电极表面与各个子午线平面中纵轴的距离为R01,内平面与纵轴的距离为R02,R1,R2,R01,R02为关系。
    • 6. 发明申请
    • IMAGE SENSOR
    • 图像传感器
    • US20110012009A1
    • 2011-01-20
    • US12561277
    • 2009-09-17
    • Ming-Hung Chuang
    • Ming-Hung Chuang
    • H01L31/113H01J40/00
    • H01L27/14609H04N5/3741H04N5/3745
    • An image sensor includes a light-sensing element, a first transistor, and a second transistor. The light-sensing element has a first end and a second end electrically connected to a select line. The first transistor has a first end electrically connected to a first control line, a control end electrically connected to the first end, and a second end electrically connected to the first end of the light-sensing element. The second transistor has a first end electrically connected to a voltage source, a control end electrically connected to the first end of the light-sensing element, and a second end electrically connected to an output line. The light-sensing element uses the material of silicon rich oxide so that the light-sensing element can sense the luminance variance and have the characteristic of the capacitor for the level boost.
    • 图像传感器包括光感测元件,第一晶体管和第二晶体管。 光感测元件具有电连接到选择线的第一端和第二端。 第一晶体管具有电连接到第一控制线的第一端,与第一端电连接的控制端,以及电连接到光感测元件的第一端的第二端。 第二晶体管具有电连接到电压源的第一端,与光感测元件的第一端电连接的控制端,以及电连接到输出线的第二端。 感光元件使用富硅氧化物的材料,使得感光元件可以感测亮度方差,并具有用于电平提升的电容器的特性。
    • 9. 发明授权
    • Method and system for detecting hidden defects
    • 检测隐藏缺陷的方法和系统
    • US07683317B2
    • 2010-03-23
    • US11532465
    • 2006-09-15
    • Dror Shemesh
    • Dror Shemesh
    • H01J40/00H01J47/00
    • H01J37/28H01J2237/057
    • A method for detecting hidden defects and patterns, the method includes: receiving an object that comprises an opaque layer positioned above an intermediate layer; defining an energy band in response to at least one characteristic of the opaque layer and at least one characteristic of a scanning electron microscope; illuminating the object with a primary electron beam; and generating images from electrons that arrive to a spectrometer having an energy within the energy band. A scanning electron microscope that includes a stage for supporting an object that comprises an opaque layer positioned above an intermediate layer; a controller, adapted to receive or define an energy band in response to at least one characteristic of the opaque layer and at least one characteristic of a scanning electron microscope; illumination optics adapted to illuminate the object with a primary electron beam; an electron spectrometer, controlled by the controller such as to selectively reject electrons in response to the defined energy band; and a processor, coupled to the spectrometer, adapted to generate images from detection signals provided by the spectrometer.
    • 一种用于检测隐藏的缺陷和图案的方法,所述方法包括:接收包含位于中间层上方的不透明层的对象; 响应于不透明层的至少一个特性和扫描电子显微镜的至少一个特征限定能带; 用一次电子束照射物体; 以及从到达具有能带内的能量的光谱仪的电子产生图像。 一种扫描电子显微镜,其包括用于支撑物体的台,所述台包括位于中间层上方的不透明层; 控制器,适于响应于所述不透明层的至少一个特性和扫描电子显微镜的至少一个特性接收或限定能带; 适于用一次电子束照射物体的照明光学器件; 由控制器控制的电子光谱仪,以便响应于限定的能带选择性地拒绝电子; 以及耦合到所述光谱仪的处理器,适于从由所述光谱仪提供的检测信号产生图像。