Image sensor
    1.
    发明授权

    公开(公告)号:US12094907B2

    公开(公告)日:2024-09-17

    申请号:US18133769

    申请日:2023-04-12

    Inventor: Jingyun Kim

    CPC classification number: H01L27/1463 H01L27/14616 H01L27/14643

    Abstract: An image sensor includes a semiconductor substrate of first conductivity type having first and second surfaces and including pixel regions, photoelectric conversion regions of second conductivity type respectively provided in the pixel regions, and a pixel isolation structure disposed in the semiconductor substrate to define the pixel regions and surrounding each of the photoelectric conversion regions. The pixel isolation structure includes a semiconductor pattern extending from the first surface to the second surface of the semiconductor substrate, a sidewall insulating pattern between a sidewall of the semiconductor pattern and the semiconductor substrate, and a dopant region in at least a portion of the semiconductor pattern.

    IMAGE SENSORS INCLUDING AN AMORPHOUS REGION AND AN ELECTRON SUPPRESSION REGION

    公开(公告)号:US20200381464A1

    公开(公告)日:2020-12-03

    申请号:US16998202

    申请日:2020-08-20

    Abstract: Image sensors are provided. An image sensor includes a substrate including a plurality of pixel areas. The substrate has a first surface and a second surface that is opposite the first surface. The image sensor includes a deep pixel isolation region extending from the second surface of the substrate toward the first surface of the substrate and separating the plurality of pixel areas from each other. The image sensor includes an amorphous region adjacent a sidewall of the deep pixel isolation region. Moreover, the image sensor includes an electron suppression region between the amorphous region and the sidewall of the deep pixel isolation region.

    IMAGE SENSOR AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20230131769A1

    公开(公告)日:2023-04-27

    申请号:US17881862

    申请日:2022-08-05

    Abstract: An image sensor includes: a substrate including a plurality of pixel regions, a first surface and a second surface opposite to the first surface; and a deep device isolation pattern disposed between adjacent pixel regioas of the phirality of pixel regions and penetrating the substrate, wherein the deep deice isolation pattern includes: a semiconductor pattern extended from the second surface toward the first surface; and sidewall insulating patterns interposed between the semiconductor pattern and the substrate, wherein the semiconductor pattern includes sidewall portions and a filling portion, wherein the sidewall portions are provided adjacent to the sidewall insulating patterns, respectively, wherein the filling portion is provided between the sidewall portions, and wherein top surfaces of the sidewall portions are located at a height higher than a top surface of the filling portion,

    IMAGE SENSORS INCLUDING AN AMORPHOUS REGION AND AN ELECTRON SUPPRESSION REGION

    公开(公告)号:US20200111821A1

    公开(公告)日:2020-04-09

    申请号:US16400279

    申请日:2019-05-01

    Abstract: Image sensors are provided. An image sensor includes a substrate including a plurality of pixel areas. The substrate has a first surface and a second surface that is opposite the first surface. The image sensor includes a deep pixel isolation region extending from the second surface of the substrate toward the first surface of the substrate and separating the plurality of pixel areas from each other. The image sensor includes an amorphous region adjacent a sidewall of the deep pixel isolation region. Moreover, the image sensor includes an electron suppression region between the amorphous region and the sidewall of the deep pixel isolation region.

    Image sensor including reflective structure including a reflective structure

    公开(公告)号:US12302660B2

    公开(公告)日:2025-05-13

    申请号:US17952479

    申请日:2022-09-26

    Abstract: An image sensor includes: a substrate including a first surface and a second surface; an interlayer dielectric layer covering the first surface; and a pixel separation part disposed its the substrate, wherein the pixel separation part divides a plurality of unit pixels from each other, wherein the pixel separation part includes: a conductive structure that extends from the first surface toward the second surface; a first reflective structure disposed between the conductive structure and the substrate; and a front-side buried pattern disposed between the conductive structure and the interlayer dielectric layer and between the first reflective structure and the interlayer dielectric layer, wherein the first reflective structure includes first reflective liners and second reflective liners that are alternately disposed in a direction toward the conductive structure from the substrate, wherein a refractive index of the first reflective liners is different from a refractive index of the second reflective liners.

    Image sensor
    7.
    发明授权

    公开(公告)号:US11121163B2

    公开(公告)日:2021-09-14

    申请号:US16677710

    申请日:2019-11-08

    Inventor: Jingyun Kim

    Abstract: An image sensor includes a semiconductor substrate of first conductivity type having first and second surfaces and including pixel regions, photoelectric conversion regions of second conductivity type respectively provided in the pixel regions, and a pixel isolation structure disposed in the semiconductor substrate to define the pixel regions and surrounding each of the photoelectric conversion regions. The pixel isolation structure includes a semiconductor pattern extending from the first surface to the second surface of the semiconductor substrate, a sidewall insulating pattern between a sidewall of the semiconductor pattern and the semiconductor substrate, and a dopant region in at least a portion of the semiconductor pattern.

    Image sensor including reflective structure including a reflective structure

    公开(公告)号:US12302661B2

    公开(公告)日:2025-05-13

    申请号:US17980192

    申请日:2022-11-03

    Abstract: An image sensor includes: a substrate including a first surface and a second surface; an interlayer dielectric layer covering the first surface; and a pixel separation part disposed its the substrate, wherein the pixel separation part divides a plurality of unit pixels from each other, wherein the pixel separation part includes: a conductive structure that extends from the first surface toward the second surface; a first reflective structure disposed between the conductive structure and the substrate; and a front-side buried pattern disposed between the conductive structure and the interlayer dielectric layer and between the first reflective structure and the interlayer dielectric layer, wherein the first reflective structure includes first reflective liners and second reflective liners that are alternately disposed in a direction toward the conductive structure from the substrate, wherein a refractive index of the first reflective liners is different from a refractive index of the second reflective liners.

    IMAGE SENSOR AND MANUFACTURING METHOD OF IMAGE SENSOR

    公开(公告)号:US20250015114A1

    公开(公告)日:2025-01-09

    申请号:US18431548

    申请日:2024-02-02

    Abstract: An image sensor according to an embodiment includes a substrate having first and second surfaces facing each other, separated by a deep trench, and including a plurality of pixel regions; a plurality of photoelectric conversion regions disposed in the plurality of pixel regions; a blocking region disposed in the plurality of pixel regions; and a plurality of color filters and a plurality of micro lenses disposed on the second surface of the substrate. The blocking region is disposed adjacent to the second surface of the substrate, the blocking region includes a first element of a first type, and the plurality of photoelectric conversion regions include a second element of a second type different from the first type. The concentration of the first element on the second surface of the substrate in the blocking region is about 1E16/cm3 to about 1E18/cm3.

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