BSI image sensor and method of forming same

    公开(公告)号:US11315972B2

    公开(公告)日:2022-04-26

    申请号:US17095994

    申请日:2020-11-12

    Abstract: A backside illumination (BSI) image sensor and a method of forming the same are provided. A method includes forming a plurality of photosensitive pixels in a substrate, the substrate having a first surface and a second surface, the second surface being opposite the first surface, the substrate having one or more active devices on the first surface. A first portion of the second surface is protected. A second portion of the second surface is patterned to form recesses in the substrate. An anti-reflective layer is formed on sidewalls of the recesses. A metal grid is formed over the second portion of the second surface, the anti-reflective layer being interposed between the substrate and the metal grid.

    Backside illuminated global shutter image sensor

    公开(公告)号:US11018177B2

    公开(公告)日:2021-05-25

    申请号:US16556654

    申请日:2019-08-30

    Abstract: Various embodiments of the present disclosure are directed towards an image sensor. The image sensor includes a photodetector disposed in a semiconductor substrate. An interlayer dielectric (ILD) structure is disposed on a first side of the semiconductor substrate. A storage node is disposed in the semiconductor substrate and spaced from the photodetector, where the storage node is spaced from the first side by a first distance. A first isolation structure is disposed in the semiconductor substrate and between the photodetector and the storage node, where the first isolation structure extends into the semiconductor substrate from a second side of the semiconductor substrate that is opposite the first side, and where the first isolation structure is spaced from the first side by a second distance that is less than the first distance.

    BSI Image Sensor and Method of Forming Same

    公开(公告)号:US20210066357A1

    公开(公告)日:2021-03-04

    申请号:US17095994

    申请日:2020-11-12

    Abstract: A backside illumination (BSI) image sensor and a method of forming the same are provided. A method includes forming a plurality of photosensitive pixels in a substrate, the substrate having a first surface and a second surface, the second surface being opposite the first surface, the substrate having one or more active devices on the first surface. A first portion of the second surface is protected. A second portion of the second surface is patterned to form recesses in the substrate. An anti-reflective layer is formed on sidewalls of the recesses. A metal grid is formed over the second portion of the second surface, the anti-reflective layer being interposed between the substrate and the metal grid.

    SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURE THEREOF

    公开(公告)号:US20220208749A1

    公开(公告)日:2022-06-30

    申请号:US17696565

    申请日:2022-03-16

    Abstract: Semiconductor devices and methods of manufacture thereof are disclosed. In some embodiments, a semiconductor device includes a first semiconductor chip including a first substrate and a first conductive feature formed over the first substrate, and a second semiconductor chip bonded to the first semiconductor chip. The second semiconductor chip includes a second substrate and a second conductive feature formed over the second substrate. A conductive plug is disposed through the first conductive feature and is coupled to the second conductive feature. The conductive plug includes a first portion disposed over the first conductive feature, the first portion having a first width, and a second portion disposed beneath or within the first conductive feature. The second portion has a second width. The first width is greater than the second width.

    BACKSIDE ILLUMINATED GLOBAL SHUTTER IMAGE SENSOR

    公开(公告)号:US20210272989A1

    公开(公告)日:2021-09-02

    申请号:US17324373

    申请日:2021-05-19

    Abstract: Various embodiments of the present disclosure are directed towards an image sensor. The image sensor includes a photodetector disposed in a semiconductor substrate. An interlayer dielectric (ILD) structure is disposed on a first side of the semiconductor substrate. A storage node is disposed in the semiconductor substrate and spaced from the photodetector, where the storage node is spaced from the first side by a first distance. A first isolation structure is disposed in the semiconductor substrate and between the photodetector and the storage node, where the first isolation structure extends into the semiconductor substrate from a second side of the semiconductor substrate that is opposite the first side, and where the first isolation structure is spaced from the first side by a second distance that is less than the first distance.

    Backside illuminated global shutter image sensor

    公开(公告)号:US11769781B2

    公开(公告)日:2023-09-26

    申请号:US17324373

    申请日:2021-05-19

    Abstract: Various embodiments of the present disclosure are directed towards an image sensor. The image sensor includes a photodetector disposed in a semiconductor substrate. An interlayer dielectric (ILD) structure is disposed on a first side of the semiconductor substrate. A storage node is disposed in the semiconductor substrate and spaced from the photodetector, where the storage node is spaced from the first side by a first distance. A first isolation structure is disposed in the semiconductor substrate and between the photodetector and the storage node, where the first isolation structure extends into the semiconductor substrate from a second side of the semiconductor substrate that is opposite the first side, and where the first isolation structure is spaced from the first side by a second distance that is less than the first distance.

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