Photo diode with dual backside deep trench isolation depth

    公开(公告)号:US11600644B2

    公开(公告)日:2023-03-07

    申请号:US17070543

    申请日:2020-10-14

    发明人: Yimin Huang

    IPC分类号: H01L27/146

    摘要: In some embodiments, the present disclosure relates to an image sensor, including a first photodiode and a second photodiode disposed in a semiconductor substrate. A floating diffusion node is disposed along a frontside of the semiconductor substrate and between the first and second photodiodes. A partial backside deep trench isolation (BDTI) structure is disposed within the semiconductor substrate and between the first and second photodiodes. The partial BDTI extends from a backside of the semiconductor substrate and is spaced from the floating diffusion node. A full BDTI structure extends from the backside of the semiconductor substrate to the frontside of the semiconductor substrate.

    Metal-insulator-metal capacitor structure to increase capacitance density

    公开(公告)号:US11018169B2

    公开(公告)日:2021-05-25

    申请号:US16543859

    申请日:2019-08-19

    发明人: Yimin Huang

    IPC分类号: H01L27/146 H01L49/02

    摘要: Various embodiments of the present disclosure are directed towards an integrated circuit (IC) including a capacitor. The capacitor is over a substrate and includes a first electrode having a plurality of first electrode layers that are vertically stacked over one another. The plurality of first electrode layers respectively contact an adjacent first electrode layer in a plurality of first connection regions. A second electrode including a plurality of second electrode layers that are vertically stacked over one another. The plurality of second electrode layers respectively contact an adjacent second electrode layer in a plurality of second connection regions. The plurality of second electrode layers are respectively stacked between adjacent ones of the plurality of first electrode layers. A capacitor dielectric structure separates the plurality of first electrode layers and the plurality of second electrode layers.

    High performance image sensor
    5.
    发明授权

    公开(公告)号:US10991746B2

    公开(公告)日:2021-04-27

    申请号:US16352164

    申请日:2019-03-13

    IPC分类号: H01L27/146 H01L31/036

    摘要: The present disclosure, in some embodiments, relates to an integrated chip. The integrated chip includes an image sensing element disposed within a pixel region of a substrate. A plurality of conductive interconnect layers are disposed within a dielectric structure arranged along a first side of the substrate. A second side of the substrate includes a plurality of interior surfaces arranged directly over the image sensing element. The plurality of interior surfaces respectively include a substantially flat surface that extends along a plane.

    METAL-INSULATOR-METAL CAPACITOR STRUCTURE TO INCREASE CAPACITANCE DENSITY

    公开(公告)号:US20210057469A1

    公开(公告)日:2021-02-25

    申请号:US16543859

    申请日:2019-08-19

    发明人: Yimin Huang

    IPC分类号: H01L27/146 H01L49/02

    摘要: Various embodiments of the present disclosure are directed towards an integrated circuit (IC) including a capacitor. The capacitor is over a substrate and includes a first electrode having a plurality of first electrode layers that are vertically stacked over one another. The plurality of first electrode layers respectively contact an adjacent first electrode layer in a plurality of first connection regions. A second electrode including a plurality of second electrode layers that are vertically stacked over one another. The plurality of second electrode layers respectively contact an adjacent second electrode layer in a plurality of second connection regions. The plurality of second electrode layers are respectively stacked between adjacent ones of the plurality of first electrode layers. A capacitor dielectric structure separates the plurality of first electrode layers and the plurality of second electrode layers.

    VERTICAL TRANSFER GATE STRUCTURE FOR A BACK-SIDE ILLUMINATION (BSI) COMPLEMENTARY METAL-OXIDE-SEMICONDUCTOR (CMOS) IMAGE SENSOR USING GLOBAL SHUTTER CAPTURE
    8.
    发明申请
    VERTICAL TRANSFER GATE STRUCTURE FOR A BACK-SIDE ILLUMINATION (BSI) COMPLEMENTARY METAL-OXIDE-SEMICONDUCTOR (CMOS) IMAGE SENSOR USING GLOBAL SHUTTER CAPTURE 有权
    用于背面照明的垂直转移门结构(BSI)使用全局快门捕获的补充金属氧化物半导体(CMOS)图像传感器

    公开(公告)号:US20160343751A1

    公开(公告)日:2016-11-24

    申请号:US14835983

    申请日:2015-08-26

    IPC分类号: H01L27/146

    摘要: A back-side illumination (BSI) complementary metal-oxide-semiconductor (CMOS) image sensor using a vertical transfer gate structure for improved quantum efficiency (QE) and global shutter efficiency (GSE) is provided. A semiconductor column extends vertically from a photodetector, towards a back-end-of-line (BEOL) stack. A floating diffusion region (FDR) is vertically spaced from the photodetector by the semiconductor column. The FDR comprises a sidewall surface laterally offset from a neighboring sidewall surface of the semiconductor column to define a lateral recess between the FDR and the photodetector. A gate dielectric layer lines the sidewall surface of the semiconductor column and is arranged in the lateral recess. A gate is arranged laterally adjacent to the gate dielectric layer and filling the lateral recess. Further, a method for manufacturing the vertical transfer gate structure is provided.

    摘要翻译: 提供了使用垂直传输门结构来提高量子效率(QE)和全局快门效率(GSE)的背面照明(BSI)互补金属氧化物半导体(CMOS)图像传感器。 半导体柱从光电检测器垂直延伸到后端(BEOL)堆叠。 浮动扩散区域(FDR)通过半导体柱与光电检测器垂直间隔开。 FDR包括从半导体柱的相邻侧壁表面横向偏移的侧壁表面,以在FDR和光电检测器之间限定横向凹槽。 栅极电介质层配置在半导体柱的侧壁表面并且布置在横向凹槽中。 栅极被布置成横向邻近栅极电介质层并填充侧向凹槽。 此外,提供了一种用于制造垂直传输门结构的方法。

    DEVICE CRACK-STOP STRUCTURE TO PREVENT DAMAGE DUE TO DICING CRACK

    公开(公告)号:US20210098392A1

    公开(公告)日:2021-04-01

    申请号:US16589460

    申请日:2019-10-01

    IPC分类号: H01L23/58 H01L27/146

    摘要: Various embodiments of the present disclosure are directed towards a semiconductor structure including a crack-stop structure disposed within a semiconductor substrate. The semiconductor substrate has a back-side surface and a front-side surface opposite the back-side surface. Photodetectors are disposed within the semiconductor substrate and are laterally spaced within a device region. An interconnect structure is disposed along the front-side surface. The interconnect structure includes a seal ring structure. A crack-stop structure is disposed within the semiconductor substrate and overlies the seal ring structure. The crack-stop structure continuously extends around the device region.