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    • 31. 发明申请
    • A CMOS IMAGER PHOTODIODE WITH ENHANCED CAPACITANCE
    • 具有增强电容的CMOS成像器光电二极管
    • US20070187734A1
    • 2007-08-16
    • US11276085
    • 2006-02-14
    • James AdkissonJohn Ellis-MonaghanMark JaffeDale PearsonDennis Rogers
    • James AdkissonJohn Ellis-MonaghanMark JaffeDale PearsonDennis Rogers
    • H01L31/062
    • H01L27/14643H01L27/1463H01L27/14689H01L31/035281
    • A pixel sensor cell having a semiconductor substrate having a surface; a photosensitive element formed in a substrate having a non-laterally disposed charge collection region entirely isolated from a physical boundary including the substrate surface. The photosensitive element comprises a trench having sidewalls formed in the substrate of a first conductivity type material; a first doped layer of a second conductivity type material formed adjacent to at least one of the sidewalls; and a second doped layer of the first conductivity type material formed between the first doped layer and the at least one trench sidewall and formed at a surface of the substrate, the second doped layer isolating the first doped layer from the at least one trench sidewall and the substrate surface. In a further embodiment, an additional photosensitive element is provided that includes a laterally disposed charge collection region that contacts the non-laterally disposed charge collection region of the photosensitive element and underlies the doped layer formed at the substrate surface.
    • 一种像素传感器单元,具有具有表面的半导体衬底; 形成在具有与包括基板表面的物理边界完全隔离的非横向布置的电荷收集区域的基板中的感光元件。 感光元件包括具有形成在第一导电类型材料的衬底中的侧壁的沟槽; 与所述侧壁中的至少一个相邻形成的第二导电类型材料的第一掺杂层; 以及形成在所述第一掺杂层和所述至少一个沟槽侧壁之间且形成在所述衬底的表面处的所述第一导电类型材料的第二掺杂层,所述第二掺杂层将所述第一掺杂层与所述至少一个沟槽侧壁隔离, 基材表面。 在另一个实施例中,提供附加的光敏元件,其包括横向设置的电荷收集区域,其接触感光元件的非横向设置的电荷收集区域,并且位于形成在基底表面处的掺杂层的下方。
    • 34. 发明申请
    • Designing Scan Chains With Specific Parameter Sensitivities to Identify Process Defects
    • 设计具有特定参数敏感度的扫描链来识别过程缺陷
    • US20060026472A1
    • 2006-02-02
    • US10710642
    • 2004-07-27
    • James AdkissonGreg BazanJohn CohnMatthew GradyLeendert HuismanMark JaffePhillip NighLeah PastelThomas SopchakDavid SweenorDavid Vallett
    • James AdkissonGreg BazanJohn CohnMatthew GradyLeendert HuismanMark JaffePhillip NighLeah PastelThomas SopchakDavid SweenorDavid Vallett
    • G06F17/50G01R31/28
    • G06F17/5045G01R31/31855G01R31/318586H01L22/34H01L2924/0002H01L2924/00
    • A method is disclosed for designing scan chains in an integrated circuit chip with specific parameter sensitivities to identify fabrication process defects causing test fails and chip yield loss. The composition of scan paths in the integrated circuit chip is biased to allow them to also function as on-product process monitors. The method adds grouping constraints that bias scan chains to have common latch cell usage where possible, and also biases cell routing to constrain scan chain routing to given restricted metal layers for interconnects. The method assembles a list of latch design parameters which are sensitive to process variation or integrity, and formulates a plan for scan chain design which determines the number and the length of scan chains. A model is formulated of scan chain design based upon current state of yield and process integrity, wherein certain latch designs having dominant sensitivities are chosen for specific ones of the scan chains on the chip. The model is provided as input parameters to a global placement and wiring program used to lay out the scan chains. Test data on the chip is then analyzed to determine and isolate systematic yield problems denoted by attributes of a statistically significant failing population of a specific type of scan chain.
    • 公开了一种用于设计具有特定参数灵敏度的集成电路芯片中的扫描链的方法,以识别导致测试失败和芯片产量损失的制造工艺缺陷。 集成电路芯片中的扫描路径的组成被偏置以允许它们也用作产品过程监视器。 该方法增加了分组约束,使得扫描链偏置以在可能的情况下具有共同的锁存单元使用,并且还偏置小区路由以将扫描链路由限制到用于互连的给定受限金属层。 该方法组合了对过程变化或完整性敏感的锁存器设计参数列表,并且制定了扫描链设计的计划,该计划决定了扫描链的数量和长度。 基于产量和过程完整性的当前状态来制定扫描链设计的模型,其中为芯片上的特定扫描链选择具有主要灵敏度的某些锁存器设计。 该模型作为输入参数提供给用于布置扫描链的全局放置和布线程序。 然后对芯片上的测试数据进行分析,以确定和分离由特定类型的扫描链的统计学显着失败群体的属性表示的系统产量问题。