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    • 41. 发明申请
    • Photodiode having voltage tunable spectral response
    • 具有电压可调光谱响应的光电二极管
    • US20050045910A1
    • 2005-03-03
    • US10962301
    • 2004-10-08
    • Scott TaylorKenneth KosaiJames Finch
    • Scott TaylorKenneth KosaiJames Finch
    • H01L27/146H01L31/00H01L31/0296H01L31/0328H01L31/101H01L31/103
    • H01L31/1032H01L27/14618H01L27/14683H01L31/02966H01L31/101H01L31/1035H01L2924/0002H01L2924/00
    • A photodetector (10) includes a substrate (12) having a surface; a first layer (14) of semiconductor material that is disposed above the surface, the first layer containing a first dopant at a first concentration for having a first type of electrical conductivity; and a second layer (16) of semiconductor material overlying the first layer. The second layer contains a second dopant at a second concentration for having a second type of electrical conductivity and forms a first p-n junction (15) with the first layer. The second layer is compositionally graded through at least a portion of a thickness thereof from wider bandgap semiconductor material to narrower bandgap in a direction away from the p-n junction. The compositional grading can be done in a substantially linear fashion, or in a substantially non-linear fashion, e.g., in a stepped manner. Preferably the first dopant concentration is at least an order of magnitude greater than the second concentration, and more preferably is at least two orders of magnitude greater. When the first p-n junction is reverse biased, a depletion region (17) exists substantially only within the second layer, and varying the magnitude of the reverse bias shifts the wavelength at which a maximum spectral sensitivity or responsiveness is obtained. At least one electrical contact is provided for coupling the second layer to a source (32) of variable bias voltage for reverse biasing the p-n junction. As the magnitude of the bias voltage is changed a wavelength of electromagnetic radiation to which the photodetector is responsive is thus changed. An alternating current signal can be superimposed on the reverse DC bias voltage and a synchronous detection technique used to detect photons corresponding to a certain bandgap energy.
    • 光电检测器(10)包括具有表面的基板(12) 设置在所述表面上方的半导体材料的第一层(14),所述第一层含有第一浓度的第一掺杂剂以具有第一类型的导电性; 以及覆盖在第一层上的半导体材料的第二层(16)。 第二层含有第二浓度的第二掺杂剂,用于具有第二类型的导电性,并与第一层形成第一p-n结(15)。 第二层通过其厚度的至少一部分从宽带隙半导体材料成组分分级到在远离p-n结的方向上窄带宽。 组成分级可以以基本上线性的方式进行,或者以基本上非线性的方式,例如以阶梯式方式进行。 优选地,第一掺杂剂浓度比第二浓度至少高一个数量级,更优选地至少比两个数量级更大。 当第一p-n结被反向偏置时,耗尽区(17)基本上只存在于第二层内,并且改变反偏压的大小偏移获得最大光谱灵敏度或响应性的波长。 提供至少一个电触点用于将第二层耦合到可变偏置电压的源极(32),用于反向偏置p-n结。 随着偏置电压的大小改变,因此光电检测器响应的电磁辐射的波长被改变。 交流信号可以叠加在反向DC偏置电压上,并且可以使用同步检测技术来检测对应于某些带隙能量的光子。
    • 47. 发明授权
    • Blunt tip obturator
    • 钝头闭孔
    • US07758603B2
    • 2010-07-20
    • US10514313
    • 2003-05-13
    • Scott TaylorMatthew A. Wixey
    • Scott TaylorMatthew A. Wixey
    • A61B17/34
    • A61B17/3417A61B17/02A61B17/3498A61B2017/320044A61B2017/3456A61B2017/346A61M13/003
    • A surgical obturator comprising an elongate shaft extending along an axis between a proximal end and a distal end, and a bladeless tip disposed at the distal end of the shaft having a conical surface forming proximally into an outer surface, the outer surface extending distally to a blunt point and having a pair of side sections. The side sections extend from the blunt point radially outwardly with progressive positions proximally along the axis. The conical surface facilitates insertion of the obturator with a reduced penetration force and minimizes tenting of the body wall. The conical surface further facilitates separation of different layers of the body wall and provides proper alignment of the tip between the layers. The surgical obturator may be constructed from a disposable or reusable material such as a metal or an autoclavable polymer.
    • 一种手术闭塞器,包括沿着近端和远端之间的轴线延伸的细长轴,以及设置在所述轴的远端处的无叶尖,其具有向近侧形成外表面的锥形表面,所述外表面向远侧延伸至 钝点并具有一对侧面部分。 侧面部分从钝点径向向外延伸,并沿着轴线向近端延伸。 锥形表面有助于以更小的穿透力插入封闭器并最小化身体壁的隆起。 锥形表面进一步有利于分离体壁的不同层,并提供顶层在层之间的适当对准。 手术闭孔器可以由一次性或可重复使用的材料构成,例如金属或高压灭菌聚合物。
    • 50. 发明授权
    • Multiple orifice applicator with improved sealing
    • 多孔喷嘴,密封性好
    • US07332035B1
    • 2008-02-19
    • US10709119
    • 2004-04-14
    • Thomas TudorScott TaylorNick Schultz
    • Thomas TudorScott TaylorNick Schultz
    • B05C5/00
    • B05C5/0275B05B13/0431B05B13/0452B05C5/0216B05C5/0237B05C5/0279
    • A multiple orifice applicator system for dispensing a plurality of rows of fluid material onto a work piece is disclosed. A source of fluid material is in fluid communication with the multiple orifice applicator. The multiple orifice applicator is mounted to a robotic arm, which positions the multiple orifice applicator relative to the work piece to enable the multiple orifice applicator to dispense fluid material onto the work piece. Fluid material is caused to flow from the source of fluid material into the multiple orifice applicator. The fluid material enters the multiple orifice applicator through an inlet duct and is dispersed and spread out into at least one dispersing chamber. The fluid material is dispensed onto the work piece through a plurality of outlet orifices in the multiple orifice applicator.
    • 公开了一种用于将多排流体材料分配到工件上的多孔施加器系统。 流体材料源与多孔喷涂器流体连通。 多孔喷嘴施加器安装到机械手臂,其将多个喷嘴施加器相对于工件定位,以使多孔喷嘴施加器能够将流体材料分配到工件上。 使流体材料从流体材料源流入多孔喷嘴。 流体材料通过入口导管进入多个孔口施加器,并且分散并展开到至少一个分散室中。 流体材料通过多孔喷嘴中的多个出口孔分配到工件上。