CMOS imager with Cu wiring and method of eliminating high reflectivity interfaces therefrom
    51.
    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

    IPC分类号: H01L21/66

    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。

    Damascene copper wiring optical image sensor
    53.
    发明授权
    Damascene copper wiring optical image sensor 有权
    大马士革铜线接线光学图像传感器

    公开(公告)号:US07655495B2

    公开(公告)日:2010-02-02

    申请号:US11623977

    申请日:2007-01-17

    IPC分类号: H01L21/00

    摘要: A CMOS image sensor array and method of fabrication wherein the sensor includes Copper (Cu) metallization levels allowing for incorporation of a thinner interlevel dielectric stack with improved thickness uniformity to result in a pixel array exhibiting increased light sensitivity. In the sensor array, each Cu metallization level includes a Cu metal wire structure formed at locations between each array pixel and, a barrier material layer is formed on top each Cu metal wire structure that traverses the pixel optical path. By implementing a single mask or self-aligned mask methodology, a single etch is conducted to completely remove the interlevel dielectric and barrier layers that traverse the optical path. The etched opening is then refilled with dielectric material. Prior to depositing the refill dielectric, a layer of either reflective or absorptive material is formed along the sidewalls of the etched opening to improve sensitivity of the pixels by either reflecting light to the underlying photodiode or by eliminating light reflections.

    摘要翻译: CMOS图像传感器阵列和制造方法,其中传感器包括铜(Cu)金属化水平,允许结合更薄的层间电介质叠层,具有改进的厚度均匀性,以产生呈现增加的光敏度的像素阵列。 在传感器阵列中,每个Cu金属化层包括在每个阵列像素之间的位置处形成的Cu金属线结构,并且阻挡材料层形成在穿过像素光路的每个Cu金属线结构上。 通过实现单掩模或自对准掩模方法,进行单次蚀刻以完全去除穿过光路的层间电介质层和阻挡层。 然后将蚀刻的开口用电介质材料重新填充。 在沉积再充填电介质之前,沿蚀刻开口的侧壁形成反射或吸收材料层,以通过将光反射到下面的光电二极管或通过消除光反射来提高像素的灵敏度。

    HIGH EFFICIENCY CMOS IMAGE SENSOR PIXEL EMPLOYING DYNAMIC VOLTAGE SUPPLY
    55.
    发明申请
    HIGH EFFICIENCY CMOS IMAGE SENSOR PIXEL EMPLOYING DYNAMIC VOLTAGE SUPPLY 有权
    高效CMOS图像传感器像素采用动态电压供应

    公开(公告)号:US20090236644A1

    公开(公告)日:2009-09-24

    申请号:US12050967

    申请日:2008-03-19

    摘要: A global shutter compatible pixel circuit comprising a reset gate (RG) transistor is provided in which a dynamic voltage is applied to the drain of the reset gate transistor in order to reduce a floating diffusion (FD) leakage therethrough during signal hold time. The drain voltage of the reset gate transistor is held at a lower voltage than a circuit supply voltage to minimize the off-state leakage through the RG transistor, thus reducing the change in the voltage at the floating diffusion during the signal hold time. In addition, a design structure for such a circuit providing a dynamic voltage to the drain of a reset gate of a pixel circuit is also provided.

    摘要翻译: 提供了包括复位栅极(RG)晶体管的全局快门兼容像素电路,其中动态电压被施加到复位栅极晶体管的漏极,以便减少在信号保持时间期间通过其的浮动扩散(FD)泄漏。 复位栅极晶体管的漏极电压保持在比电路电源电压更低的电压,以最小化通过RG晶体管的截止状态泄漏,从而减少在信号保持时间期间浮动扩散时的电压变化。 此外,还提供了用于向像素电路的复位栅极的漏极提供动态电压的这种电路的设计结构。

    Method of adding fabrication monitors to integrated circuit chips
    59.
    发明授权
    Method of adding fabrication monitors to integrated circuit chips 有权
    将制造监控器添加到集成电路芯片的方法

    公开(公告)号:US07240322B2

    公开(公告)日:2007-07-03

    申请号:US10907494

    申请日:2005-04-04

    IPC分类号: G06F17/50

    摘要: An integrated circuit, a method and a system for designing and a method fabricating the integrated circuit. The method including: (a) generating a photomask level design of an integrated circuit design of the integrated circuit, the photomask level design comprising a multiplicity of integrated circuit element shapes; (b) designating regions of the photomask level design between adjacent integrated circuit element shapes, the designated regions large enough to require placement of fill shapes between the adjacent integrated circuit elements based on fill shape rules, the fill shapes not required for the operation of the integrated circuit; and (c) placing one or more monitor structure shapes of a monitor structure in at least one of the designated regions, the monitor structure not required for the operation of the integrated circuit.

    摘要翻译: 一种用于设计的集成电路,方法和系统以及制造集成电路的方法。 该方法包括:(a)生成集成电路的集成电路设计的光掩模级设计,光掩模级设计包括多个集成电路元件形状; (b)指定相邻集成电路元件形状之间的光掩模级设计的区域,指定区域足够大以至于基于填充形状规则需要在相邻集成电路元件之间放置填充形状, 集成电路; 以及(c)将监视器结构的一个或多个监视器结构形状放置在指定区域中的至少一个中,该集成电路的操作不需要监视器结构。

    Recessed gate for an image sensor
    60.
    发明授权
    Recessed gate for an image sensor 有权
    嵌入式门用于图像传感器

    公开(公告)号:US07217968B2

    公开(公告)日:2007-05-15

    申请号:US10905097

    申请日:2004-12-15

    IPC分类号: H01L31/062

    摘要: A novel image sensor cell structure and method of manufacture. The imaging sensor comprises a substrate, a gate comprising a dielectric layer and gate conductor formed on the dielectric layer, a collection well layer of a first conductivity type formed below a surface of the substrate adjacent a first side of the gate conductor, a pinning layer of a second conductivity type formed atop the collection well at the substrate surface, and a diffusion region of a first conductivity type formed adjacent a second side of the gate conductor, the gate conductor forming a channel region between the collection well layer and the diffusion region. Part of the gate conductor bottom is recessed below the surface of the substrate. Preferably, a portion of the gate conductor is recessed at or below a bottom surface of the pinning layer to a depth such that the collection well intersects the channel region.

    摘要翻译: 一种新颖的图像传感器单元结构及其制造方法。 成像传感器包括基板,包括电介质层和形成在电介质层上的栅极导体的栅极,形成在与栅极导体的第一侧相邻的基板的表面下面的第一导电类型的收集阱层,钉扎层 在基板表面上形成在集合阱顶部的第二导电类型的第一导电类型的扩散区和在栅极导体的第二侧附近形成的第一导电类型的扩散区,栅极导体在集电阱层和扩散区之间形成沟道区 。 栅极导体底部的一部分凹陷在基板的表面下方。 优选地,栅极导体的一部分在钉扎层的底表面处或下方凹陷到使得收集阱与沟道区相交的深度。