Image sensor cells
    121.
    发明授权
    Image sensor cells 失效
    图像传感器单元

    公开(公告)号:US07491992B2

    公开(公告)日:2009-02-17

    申请号:US11619024

    申请日:2007-01-02

    Abstract: A structure (and method for forming the same) for an image sensor cell. The method includes providing a semiconductor substrate. Then, a charge collection well is formed in the semiconductor substrate, the charge collection well comprising dopants of a first doping polarity. Next, a surface pinning layer is formed in the charge collection well, the surface pinning layer comprising dopants of a second doping polarity opposite to the first doping polarity. Then, an electrically conductive push electrode is formed in direct physical contact with the surface pinning layer but not in direct physical contact with the charge collection well. Then, a transfer transistor is formed on the semiconductor substrate. The transfer transistor includes first and second source/drain regions and a channel region. The first and second source/drain regions comprise dopants of the first doping polarity. The first source/drain region is in direct physical contact with the charge collection well.

    Abstract translation: 用于图像传感器单元的结构(及其形成方法)。 该方法包括提供半导体衬底。 然后,在半导体衬底中形成电荷收集阱,电荷收集阱包含第一掺杂极性的掺杂剂。 接下来,在电荷收集阱中形成表面钉扎层,表面钉扎层包括与第一掺杂极性相反的第二掺杂极性的掺杂剂。 然后,导电的推动电极形成为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。 然后,在半导体衬底上形成传输晶体管。 传输晶体管包括第一和第二源极/漏极区域和沟道区域。 第一和第二源/漏区包括第一掺杂极性的掺杂剂。 第一源极/漏极区域与电荷收集阱直接物理接触。

    Damascene copper wiring image sensor
    124.
    发明授权
    Damascene copper wiring image sensor 有权
    大马士革铜线接线图像传感器

    公开(公告)号:US07193289B2

    公开(公告)日:2007-03-20

    申请号:US10904807

    申请日:2004-11-30

    Abstract: 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.

    Abstract translation: 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。

    Transistor structure with thick recessed source/drain structures and fabrication process of same

    公开(公告)号:US07132339B2

    公开(公告)日:2006-11-07

    申请号:US11007843

    申请日:2004-12-09

    Abstract: An improved transistor structure that decreases source/drain (S/D) resistance without increasing gate-to-S/D capacitance, thereby increasing device operation. S/D structures are formed into recesses formed on a semiconductor wafer through a semiconductor layer and a first layer of a buried insulator having at least two layers. A body is formed from the semiconductor layer situated between the recesses, and the body comprises a top body surface and a bottom body surface that define a body thickness. Top portions of the S/D structures are within and abut the body thickness. An improved method for forming the improved transistor structure is also described and comprises: forming recesses through a semiconductor layer and a first layer of a buried insulator so that a body is situated between the recesses; and forming S/D structures into the recesses so that top portions of the S/D structures are within and abut a body thickness.

    Integrated circuit having pairs of parallel complementary FinFETs
    126.
    发明授权
    Integrated circuit having pairs of parallel complementary FinFETs 有权
    具有成对的并联互补FinFET的集成电路

    公开(公告)号:US06943405B2

    公开(公告)日:2005-09-13

    申请号:US10604206

    申请日:2003-07-01

    Abstract: A method and structure for an integrated circuit structure that utilizes complementary fin-type field effect transistors (FinFETs) is disclosed. The invention has a first-type of FinFET which includes a first fin, and a second-type of FinFET which includes a second fin running parallel to the first fin. The invention also has an insulator fin positioned between the source/drain regions of the first first-type of FinFET and the second-type of FinFET. The insulator fin has approximately the same width dimensions as the first fin and the second fin, such that the spacing between the first-type of FinFET and the second-type of FinFET is approximately equal to the width of one fin. The invention also has a common gate formed over channel regions of the first-type of FinFET and the second-type of FinFET. The gate includes a first impurity doping region adjacent the first-type of FinFET and a second impurity doping region adjacent the second-type of FinFET. The differences between the first impurity doping region and the second impurity doping region provide the gate with different work functions related to differences between the first-type of FinFET and the second-type of FinFET. The first fin and the second fin have approximately the same width.

    Abstract translation: 公开了利用互补翅片型场效应晶体管(FinFET)的集成电路结构的方法和结构。 本发明具有包括第一鳍片的第一类型的FinFET和包括与第一鳍片平行的第二鳍片的第二类型的FinFET。 本发明还具有位于第一第一类型FinFET的源极/漏极区域和第二类型FinFET之间的绝缘体鳍片。 绝缘体鳍片具有与第一鳍片和第二鳍片大致相同的宽度尺寸,使得第一类型的FinFET和第二类型的FinFET之间的间隔大致等于一个鳍片的宽度。 本发明还具有形成在第一类型FinFET和第二类型FinFET的沟道区上的公共栅极。 栅极包括与第一类型的FinFET相邻的第一杂质掺杂区域和与第二类型的FinFET相邻的第二杂质掺杂区域。 第一杂质掺杂区域和第二杂质掺杂区域之间的差异为栅极提供与第一类型FinFET和第二类型FinFET之间的差异有关的不同功函数。 第一鳍片和第二鳍片具有大致相同的宽度。

Patent Agency Ranking