A DAMASCENE COPPER WIRING IMAGE SENSOR
    3.
    发明申请
    A DAMASCENE COPPER WIRING IMAGE SENSOR 有权
    DAMASCENE铜接线图像传感器

    公开(公告)号:US20060113622A1

    公开(公告)日:2006-06-01

    申请号:US10904807

    申请日:2004-11-30

    IPC分类号: H01L31/00

    摘要: An 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: 一种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,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。

    A CMOS IMAGER WITH CU WIRING AND METHOD OF ELIMINATING HIGH REFLECTIVITY INTERFACES THEREFROM
    5.
    发明申请
    A CMOS IMAGER WITH CU WIRING AND METHOD OF ELIMINATING HIGH REFLECTIVITY INTERFACES THEREFROM 有权
    具有CU接线的CMOS成像器和消除其高反射性接口的方法

    公开(公告)号:US20060138480A1

    公开(公告)日:2006-06-29

    申请号:US10905277

    申请日:2004-12-23

    摘要: An 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 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: 一种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敏度的像素阵列。 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。 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。

    CMOS IMAGER WITH CU WIRING AND METHOD OF ELIMINATING HIGH REFLECTIVITY INTERFACES THEREFROM
    6.
    发明申请
    CMOS IMAGER WITH CU WIRING AND METHOD OF ELIMINATING HIGH REFLECTIVITY INTERFACES THEREFROM 失效
    具有CU布线的CMOS成像器和消除其高反射性接口的方法

    公开(公告)号:US20080108170A1

    公开(公告)日:2008-05-08

    申请号:US11959841

    申请日:2007-12-19

    IPC分类号: H01L21/04

    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
    7.
    发明申请
    DAMASCENE COPPER WIRING OPTICAL IMAGE SENSOR 有权
    DAMASCENE铜接线光学图像传感器

    公开(公告)号:US20070114622A1

    公开(公告)日:2007-05-24

    申请号:US11623977

    申请日:2007-01-17

    IPC分类号: H01L29/82

    摘要: A CMOS image sensor array and method of fabrication wherein the sensor includes Copper (Cu) metallization levels allowing for incorporation of a inner 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,允许结合具有改进的厚度均匀性的内部层间电介质叠层,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。

    FUNNELED LIGHT PIPE FOR PIXEL SENSORS
    8.
    发明申请
    FUNNELED LIGHT PIPE FOR PIXEL SENSORS 有权
    用于像素传感器的FUNNELED LIGHT PIPE

    公开(公告)号:US20070138380A1

    公开(公告)日:2007-06-21

    申请号:US11275171

    申请日:2005-12-16

    IPC分类号: G01J1/04

    摘要: A photo sensing structure and methods for forming the same. The structure includes (a) a semiconductor substrate and (b) a photo collection region on the semiconductor substrate. The structure also includes a funneled light pipe on top of the photo collection region. The funneled light pipe includes (i) a bottom cylindrical portion on top of the photo collection region of the photo collection region, and (ii) a funneled portion which has a tapered shape and is on top and in direct physical contact with the bottom cylindrical portion. The structure further includes a color filter region on top of the funneled light pipe.

    摘要翻译: 感光结构及其形成方法。 该结构包括(a)半导体衬底和(b)半导体衬底上的光收集区域。 该结构还包括在照片收集区域顶部的漏斗光管。 漏斗式光管包括(i)照片收集区域的照片收集区域顶部的底部圆柱形部分,和(ii)具有锥形形状并且在顶部并与底部圆柱体直接物理接触的漏斗部分 一部分。 该结构还包括在漏斗的光管的顶部上的滤色器区域。

    LIGHT SHIELD FOR CMOS IMAGER
    10.
    发明申请
    LIGHT SHIELD FOR CMOS IMAGER 有权
    CMOS成像器的光栅

    公开(公告)号:US20070102738A1

    公开(公告)日:2007-05-10

    申请号:US11164072

    申请日:2005-11-09

    IPC分类号: H01L31/113 H01L31/062

    CPC分类号: H01L27/14623 H01L27/14685

    摘要: The present invention provides a light shield for shielding the floating diffusion of a complementary metal-oxide semiconductor (CMOS) imager. In accordance with an embodiment of the present invention, there is provided a pixel sensor cell including: a device region formed on a substrate; and a first layer of material forming a sidewall adjacent to a side of the device region for blocking electromagnetic radiation from the device region.

    摘要翻译: 本发明提供一种用于屏蔽互补金属氧化物半导体(CMOS)成像器的浮动扩散的遮光罩。 根据本发明的实施例,提供了一种像素传感器单元,包括:形成在基板上的器件区域; 以及形成与所述器件区域的一侧相邻的侧壁的第一材料层,用于阻挡来自所述器件区域的电磁辐射。