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    CMOS imager with Cu wiring and method of eliminating high reflectivity interfaces therefrom
    1.
    发明授权
    CMOS imager with Cu wiring and method of eliminating high reflectivity interfaces therefrom 失效
    具有Cu布线的CMOS成像器和从其中消除高反射率界面的方法

    公开(公告)号：US07772028B2

    公开(公告)日：2010-08-10

    申请号：US11959841

    申请日：2007-12-19

    申请人： James W. Adkisson ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Robert K. Leidy ,  Richard J. Rassel ,  Anthony K. Stamper

    发明人： James W. Adkisson ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Robert K. Leidy ,  Richard J. Rassel ,  Anthony K. Stamper

    IPC分类号： H01L21/66

    CPC分类号： H01L27/14636 ,  H01L21/76819 ,  H01L21/76834 ,  H01L27/14621 ,  H01L27/14625 ,  H01L27/14627 ,  H01L27/14629 ,  H01L27/14645 ,  H01L27/14683

    摘要： A CMOS image sensor and method of fabrication wherein the sensor includes Copper (Cu) metallization levels allowing for incorporation of a thinner interlevel dielectric stack to result in a pixel array exhibiting increased light sensitivity. The CMOS image sensor includes structures having a minimum thickness of barrier layer metal that traverses the optical path of each pixel in the sensor array or, that have portions of barrier layer metal selectively removed from the optical paths of each pixel, thereby minimizing reflectance. That is, by implementing various block or single mask methodologies, portions of the barrier layer metal are completely removed at locations of the optical path for each pixel in the array. In a further embodiment, the barrier metal layer may be formed atop the Cu metallization by a self-aligned deposition.

    摘要翻译： CMOS图像传感器和制造方法，其中传感器包括铜（Cu）金属化水平，允许结合较薄的层间电介质堆叠以产生呈现增加的光灵敏度的像素阵列。 CMOS图像传感器包括具有穿过传感器阵列中的每个像素的光路的阻挡层金属的最小厚度的结构，或者具有从每个像素的光路中选择性地去除的阻挡层金属的部分，从而使反射率最小化的结构。 也就是说，通过实现各种块或单掩模方法，在阵列中的每个像素的光路的位置处完全去除了阻挡层金属的部分。 在另一个实施例中，阻挡金属层可以通过自对准沉积形成在Cu金属化之上。

    Image sensor cells
    8.
    发明授权
    Image sensor cells 有权
    图像传感器单元

    公开(公告)号：US07205627B2

    公开(公告)日：2007-04-17

    申请号：US10906510

    申请日：2005-02-23

    申请人： James W. Adkisson ,  John J. Ellis-Monaghan ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Richard J. Rassel

    发明人： James W. Adkisson ,  John J. Ellis-Monaghan ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Richard J. Rassel

    IPC分类号： H01L31/06

    CPC分类号： H01L27/14609 ,  H01L27/1463 ,  H01L27/14641 ,  H01L27/14643 ,  H01L31/035281

    摘要： A structure (and method for forming the same) for an image sensor cell. The structure includes (a) a semiconductor substrate; (b) a charge collection well on the substrate, the charge collection well comprising a semiconductor material doped with a first doping polarity; (c) a surface pinning layer on and in direct physical contact with the charge collection well, the surface pinning layer comprising a semiconductor material doped with a second doping polarity opposite to the first doping polarity; and (d) an electrically conducting push electrode being in direct physical contact with the surface pinning layer but not being in direct physical contact with the charge collection well.

    摘要翻译： 用于图像传感器单元的结构（及其形成方法）。 该结构包括（a）半导体衬底; （b）在所述衬底上的电荷收集阱，所述电荷收集阱包括掺杂有第一掺杂极性的半导体材料; （c）与电荷收集阱直接物理接触的表面钉扎层，所述表面钉扎层包括掺杂有与第一掺杂极性相反的第二掺杂极性的半导体材料; 和（d）与表面钉扎层直接物理接触但不与电荷收集阱直接物理接触的导电推动电极。

    Photo-sensor and pixel array with backside illumination and method of forming the photo-sensor
    10.
    发明授权
    Photo-sensor and pixel array with backside illumination and method of forming the photo-sensor 有权
    具有背面照明的光电传感器和像素阵列以及形成光电传感器的方法

    公开(公告)号：US07586139B2

    公开(公告)日：2009-09-08

    申请号：US11276218

    申请日：2006-02-17

    申请人： James W. Adkisson ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Alan Loiseau ,  Richard J. Rassel

    发明人： James W. Adkisson ,  Jeffrey P. Gambino ,  Mark D. Jaffe ,  Alan Loiseau ,  Richard J. Rassel

    IPC分类号： H01L31/062 ,  H01L21/00

    CPC分类号： H01L27/14643 ,  H01L27/14621 ,  H01L27/1463 ,  H01L27/1464 ,  H01L27/14689

    摘要： An imaging sensor with an array of FET pixels and method of forming the imaging sensor. Each pixel is a semiconductor island, e.g., N-type silicon on a Silicon on insulator (SOI) wafer. FETs are formed in one photodiode electrode, e.g., a P-well cathode. A color filter may be attached to an opposite surface of island. A protective layer (e.g., glass or quartz) or window is fixed to the pixel array at the color filters. The image sensor may be illuminated from the backside with cell wiring above the cell. So, an optical signal passes through the protective layer is filtered by the color filters and selectively sensed by a corresponding photo-sensor.

    摘要翻译： 具有FET像素阵列的成像传感器和形成成像传感器的方法。 每个像素是半导体岛，例如绝缘体上硅（SOI）晶片上的N型硅。 FET形成在一个光电二极管电极中，例如P阱阴极。 滤色器可以附接到岛的相对表面。 保护层（例如，玻璃或石英）或窗口在滤色器处固定到像素阵列。 图像传感器可以从背面照亮，电池布线在电池单元上方。 因此，通过保护层的光学信号被滤色器过滤并被相应的光电传感器选择性地感测。