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    Dynamic optical demultiplexer/multiplexer formed within a PLC
    1.
    发明申请
    Dynamic optical demultiplexer/multiplexer formed within a PLC 有权
    在PLC内形成的动态光解复用器/多路复用器

    公开(公告)号：US20050018965A1

    公开(公告)日：2005-01-27

    申请号：US10878935

    申请日：2004-06-28

    申请人： Jinxi Shen ,  Anca Sala ,  David Dougherty ,  David Funk ,  Douglas Crafts ,  Barthelemy Fondeur ,  Pang-Chen Sun

    发明人： Jinxi Shen ,  Anca Sala ,  David Dougherty ,  David Funk ,  Douglas Crafts ,  Barthelemy Fondeur ,  Pang-Chen Sun

    IPC分类号： G02B6/34 ,  H04J14/02 ,  G02B6/28

    CPC分类号： G02B6/12019 ,  H04J14/02

    摘要： A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal having n wavelengths therein and for receiving back via the reflector at the input/output port a selected channel of the input signal. In operation a multiplexed signal have n channels is launched therein and a selected channel is output for analysis or further processing.

    摘要翻译： 公开了一种解复用器/多路复用器，其中在一端具有反射器的阵列波导光栅包括可选择的信号路径阻挡器。 阵列波导器件具有用于以其中具有n个波长的输入信号的形式发射辐射的公共输入/输出端口，并且用于经由反射器在输入/输出端口处接收输入信号的选定通道的反射。 在操作中，多路复用信号在其中发射n个信道，并且输出所选择的信道用于分析或进一步处理。

    Asymmetric Mach-Zehnder Interferometer Having A Reduced Drive Voltage Coupled To A Compact Low-Loss Arrayed Waveguide Grating
    2.
    发明申请
    Asymmetric Mach-Zehnder Interferometer Having A Reduced Drive Voltage Coupled To A Compact Low-Loss Arrayed Waveguide Grating 有权
    具有降低的驱动电压耦合到紧凑型低损耗阵列波导光栅的非对称马赫 - 曾德干涉仪

    公开(公告)号：US20080044122A1

    公开(公告)日：2008-02-21

    申请号：US11748036

    申请日：2007-05-14

    申请人： Barthelemy Fondeur ,  David Dougherty

    发明人： Barthelemy Fondeur ,  David Dougherty

    IPC分类号： G02B6/26

    CPC分类号： G02B6/12026 ,  G02B6/12016 ,  G02B6/12019

    摘要： The invention relates to an asymmetric Mach Zehnder Interferometer (MZI) having a reduced drive voltage, coupled to a compact low-loss arrayed waveguide grating (AWG) to provide a broader passband with low ripple. The integrated device has a compact stackable design for improved manufacturing yield. Inputs and outputs of the device are disposed in alignment on opposite sides of a silicon chip with the MZI having an opposite curvature to the AWG. To achieve this alignment, waveguide arms of the MZI are crossed without coupling between them before the optical signal is combined and coupled into the AWG.

    摘要翻译： 本发明涉及一种具有降低驱动电压的非对称马赫曾德干涉仪（MZI），耦合到紧凑型低损耗阵列波导光栅（AWG），以提供具有低纹波的更宽通带。 集成器件具有紧凑的可堆叠设计，可提高制造产量。 器件的输入和输出在硅芯片的相对侧对准地布置，MZI具有与AWG相反的曲率。 为了实现这种对准，在将光信号组合并耦合到AWG之前，MZI的波导臂在它们之间交叉而没有耦合。

    Polarization compensated optical tap
    3.
    发明申请
    Polarization compensated optical tap 有权
    极化补偿光学抽头

    公开(公告)号：US20050025427A1

    公开(公告)日：2005-02-03

    申请号：US10629143

    申请日：2003-07-29

    申请人： David Dougherty ,  Pang-Chen Sun ,  Duncan Harwood

    发明人： David Dougherty ,  Pang-Chen Sun ,  Duncan Harwood

    IPC分类号： G02B6/12 ,  G02B6/125 ,  G02B6/126 ,  G02B6/26 ,  G02B6/28

    CPC分类号： G02B6/125 ,  G02B6/126 ,  G02B2006/12119

    摘要： A polarization compensated planar waveguide branch is disclosed having a planar optical trunk waveguide for transporting a linearly un-polarized optical signal having TE and TM modes. A planar optical branch waveguide, capable of supporting TE and TM modes is optically coupled to the trunk waveguide such that at least a portion of an optical signal propagating within the trunk waveguide will couple into the branch waveguide with an undesired imbalance, having stronger TM mode coupling than TE mode coupling for the at least the portion of the optical signal which couples into the branch waveguide from the trunk waveguide. A portion of said branch waveguide downstream from a region where coupling takes place between the trunk and branch waveguides or a waveguide portion optically coupled thereto, receives the at least a portion of the optical signal, and has at least a predetermined bend with a predetermined radius for compensating for the unwanted imbalance in the TM and TE mode caused by light optically coupling into the branch from the trunk waveguide.

    摘要翻译： 公开了一种偏振补偿平面波导分支，其具有用于传输具有TE和TM模式的线性非偏振光信号的平面光中继波导。 能够支持TE和TM模式的平面光学分支波导光学耦合到主干波导，使得在主干波导内传播的光信号的至少一部分将以不期望的不平衡耦合到分支波导中，具有更强的TM模式 耦合到TE模式耦合，用于耦合到主干波导的分支波导的光信号的至少一部分。 所述分支波导的一部分在从主干和分支波导之间发生耦合的区域下游，或者与光耦合到其上的波导部分接收，接收光信号的至少一部分，并且具有至少预定的具有预定半径的弯曲部 用于补偿由光纤耦合到主干波导的分支引起的TM和TE模式中的不期望的不平衡。

    Multi-band arrayed waveguide grating with improved insertion loss and wavelength accuracy
    4.
    发明授权
    Multi-band arrayed waveguide grating with improved insertion loss and wavelength accuracy 失效
    具有改进的插入损耗和波长精度的多波段阵列波导光栅

    公开(公告)号：US06963684B2

    公开(公告)日：2005-11-08

    申请号：US10099565

    申请日：2002-03-15

    申请人： Jyoti Bhardwaj ,  David Dougherty ,  Venkatesan Murali ,  Hiroaki Yamada

    发明人： Jyoti Bhardwaj ,  David Dougherty ,  Venkatesan Murali ,  Hiroaki Yamada

    IPC分类号： G02B6/34 ,  G02B6/35 ,  G02B6/26

    CPC分类号： G02B6/12021 ,  G02B6/356

    摘要： A planar lightwave circuit generalized for handling any given band of multiple bands of a wavelength range, including a first grating element handling a first group of bands; and a second grating element handling a second group of bands. The first and second groups of bands overlap in the wavelength range, and may be spaced apart by a fixed wavelength value. By providing two periodic grating elements handling alternating bands, their free spectral range is allowed to expand, improving their roll-off characteristics. By providing separate inputs for each band, wavelength accuracy can be improved. Device flexibility can be further improved by using switch and interleaver fabrics at the inputs and outputs. The resultant device, generalized to handle any given band within a wavelength range, eliminates the need for separate component design and inventory tracking otherwise necessary.

    摘要翻译： 广泛用于处理波长范围的多个频带的任何给定频带的平面光波电路，包括处理第一组频带的第一光栅元件; 以及处理第二组频带的第二光栅元件。 第一和第二组带在波长范围内重叠，并且可以被固定波长值间隔开。 通过提供处理交替频带的两个周期性光栅元件，允许其自由光谱范围扩大，提高其滚降特性。 通过为每个频带提供单独的输入，可以提高波长精度。 通过在输入和输出端使用交换机和交织器结构，可以进一步提高设备的灵活性。 通常用于处理波长范围内的任何给定波段的结果器件消除了对另外必要的单独的部件设计和库存跟踪的需要。

    Chemical die singulation technique
    7.
    发明申请
    Chemical die singulation technique 有权
    化学模切技术

    公开(公告)号：US20060292827A1

    公开(公告)日：2006-12-28

    申请号：US11159553

    申请日：2005-06-22

    申请人： Brian Condie ,  David Dougherty ,  Mahesh Shah

    发明人： Brian Condie ,  David Dougherty ,  Mahesh Shah

    IPC分类号： H01L21/00

    CPC分类号： H01L21/78

    摘要： A method is provided for manufacturing a semiconductor device from a substrate (200) having an active surface (204) and a non-active surface (206). The method comprises depositing a backing material (104) onto the non-active surface of the substrate (206) in a pattern (500), the pattern (500) having at least a first die section (210), a second die section (212) adjacent the first die section (210), and a strip (216) connecting the first die section (210) and the second die section (212), removing material from portions of the non-active surface of the substrate (206) on which the backing material (104) is not deposited to thereby partially separate the substrate (200) into a first die (236) and a second die (238) connected to one another by the strip (254) of the deposited backing material, and breaking the strip connector (254) to separate the first die (236) from the second die (238).

    摘要翻译： 提供了一种从具有有源表面（204）和非有效表面（206）的衬底（200）制造半导体器件的方法。 该方法包括以图案（500）将背衬材料（104）沉积到基底（206）的非活性表面上，图案（500）具有至少第一模具部分（210），第二模具部分 212），以及连接第一模具部分（210）和第二模具部分（212）的条带（216），从衬底（206）的非活性表面的部分去除材料， 其上不沉积背衬材料（104），从而通过沉积的背衬材料的带（254）将衬底（200）部分地分离成第一模具（236）和第二模具（238），第二模具（238）彼此连接， 以及断开带状连接器（254）以将第一管芯（236）与第二管芯（238）分离。

    Warpage-reducing packaging design
    9.
    发明申请
    Warpage-reducing packaging design 审中-公开
    翘曲缩减包装设计

    公开(公告)号：US20070175660A1

    公开(公告)日：2007-08-02

    申请号：US11341991

    申请日：2006-01-27

    申请人： Betty Yeung ,  David Dougherty

    发明人： Betty Yeung ,  David Dougherty

    IPC分类号： H01L23/34

    CPC分类号： H01L25/072 ,  H01L23/492 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/48091 ,  H01L2224/4813 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/48472 ,  H01L2224/49 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/01031 ,  H01L2924/01033 ,  H01L2924/01042 ,  H01L2924/01043 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10329 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

    摘要： A flange and packaging assembly characterized by a structural lip configured to impart resistance to thermal-induced deformation (i.e. “stiffness”) to the flange during elevated temperature die attachment processes. The stiffness is achieved through appropriate configuration of the lip (height, width and shape) and is sufficient to at least partially counteract the stresses generated from coefficient of thermal expansion differentials between the flange and a die attached to it. The lip may be molded or otherwise formed with the flange as a unitary lip-stiffened flange, or may be a separate structure that is affixed to the flange. The flange has a lip-stiffened region for die attachment. This region may be raised above the first surface of the substrate base for enhanced stiffening, and may be in the form of a single pedestal supporting a single or multiple die, or may be a series of raised pedestals, each supporting one or more die. The leads may be embedded in a polymetric material that is attached to the flange that is of sufficient thickess to provide the required stiffness. The embedded leads may be shaped and formed so that the desired seating plane height is achieved. The lead form placement can be either on the interior or exterior of the embedded polymetric material. The polymetric material can be supported along the edge of the flange or be seated on a part of an extrusion from the flange.

    摘要翻译： 一种凸缘和包装组件，其特征在于结构唇缘被配置成在高温模具附接过程期间赋予对凸缘的热诱导变形（即“刚度”）的抵抗力。 刚度通过唇缘的适当构造（高度，宽度和形状）来实现，并且足以至少部分地抵消由凸缘和附接到其上的模具之间的热膨胀差异系数产生的应力。 唇缘可以模制或以其它方式形成，凸缘作为整体唇缘加强的凸缘，或者可以是固定到凸缘的单独的结构。 凸缘具有用于模具附接的唇缘加强区域。 该区域可以升高到基板基底的第一表面之上，以增强加强硬度，并且可以是支撑单个或多个模头的单个基座的形式，或者可以是一系列凸起的基座，每个支撑一个或多个模具。 引线可以嵌入到具有足够厚度的凸缘附接到提供所需刚度的多边形材料中。 嵌入的引线可以被成形和形成，使得实现期望的座面高度。 引线形式放置可以在嵌入式多功能材料的内部或外部。 多边形材料可以沿着凸缘的边缘支撑，或者从凸缘位于挤压件的一部分上。

    Rotatable plow shovel apparatus
    10.
    发明授权
    Rotatable plow shovel apparatus 有权

    公开(公告)号：US11326315B2

    公开(公告)日：2022-05-10

    申请号：US16559832

    申请日：2019-09-04

    申请人： David Dougherty

    发明人： David Dougherty

    IPC分类号： E01H5/02 ,  E01H5/06

    摘要： A rotatable plow shovel apparatus for clearing a path without having to lift includes a plow blade and a shaft housing having a curved front face coupled to a back side of the plow blade. A shaft aperture extends through a top side of the shaft housing to proximal a bottom side and the back face has a plurality of adjustment apertures extending through to the shaft aperture. A handle shaft has a vertical engagement portion rotatably engaged within the shaft aperture and an angled extension portion coupled to the engagement portion. A locking pin is coupled to the engagement portion and is selectively engageable with each of the plurality of adjustment apertures of the shaft housing to lock the handle shaft in a straight position, at least one alternative left tilt position, and at least one alternative right tilt position.