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    IMAGE SENSOR PACKAGES WITH TUNABLE POLARIZATION LAYERS
    1.
    发明申请
    IMAGE SENSOR PACKAGES WITH TUNABLE POLARIZATION LAYERS 有权

    公开(公告)号：US20210026164A1

    公开(公告)日：2021-01-28

    申请号：US16715090

    申请日：2019-12-16

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Orit SKORKA ,  Brian Anthony VAARTSTRA ,  Radu ISPASOIU

    IPC: G02F1/01 ,  G02F1/137 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1339 ,  G02B3/00 ,  H04N5/225

    Abstract: Imaging systems may include tunable polarization filters. A tunable polarization filter may be integrated directly into an image sensor package. For example, the tunable polarization filter may serve as cover glass for the image sensor package. Tunable polarization package glass may be incorporated into image sensor packages that have air gaps between the image sensor and the cover glass or that have transparent adhesive between the image sensor and the cover glass. The tunable polarization layer may be controlled at a global level, at a sub-array level, or at a pixel level. In some cases, the tunable polarization layer may be a tunable polarization filter. In this example, the direction of the polarization filter is tuned. In other cases, the tunable polarization layer may be a tunable polarization rotator. In this example, the tunable polarization layer selectively rotates the polarization of light that passes through the tunable polarization layer.

    IMAGING SYSTEM WITH AN ELECTRONIC SHUTTER
    2.
    发明申请
    IMAGING SYSTEM WITH AN ELECTRONIC SHUTTER 有权

    公开(公告)号：US20220232156A1

    公开(公告)日：2022-07-21

    申请号：US17643714

    申请日：2021-12-10

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Orit SKORKA ,  Radu ISPASOIU ,  Brian Anthony VAARTSTRA

    IPC: H04N5/235 ,  G02F1/1335

    Abstract: An imaging system may include an electronic shutter. The electronic shutter may be positioned between an image sensor and a lens module or may be integrated as a package cover for the image sensor. The electronic shutter may selectively attenuate incident light that passes to the image sensor. To increase the dynamic range of the imaging system, the electronic shutter may have a first transparency while a first image is captured by the image sensor and a second, different transparency while a second image is captured by the image sensor. The first and second images are subsequently combined to form a single high dynamic range image. The electronic shutter may be controlled at a global level, at a sub-array level, or at a pixel level.

    OPTICAL SENSOR TRANSPARENT COVER WITH ARRAY CONTACT GRID
    3.
    发明公开
    OPTICAL SENSOR TRANSPARENT COVER WITH ARRAY CONTACT GRID 审中-公开

    公开(公告)号：US20240167873A1

    公开(公告)日：2024-05-23

    申请号：US18056524

    申请日：2022-11-17

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Brian Anthony VAARTSTRA ,  Larry Duane KINSMAN

    IPC: G01J3/28 ,  G01D5/24

    CPC classification number: G01J3/2803 ,  G01D5/24

    Abstract: A package includes an optical sensor die, a support grid structure disposed on the optical sensor die, and an optically transparent cover attached to the support grid structure. A surface of the optical sensor die includes an optically active surface area (OASA) and an edge surface portion lying outside a perimeter of the OASA. The support grid structure disposed on the surface of the optical sensor die includes at least one pillar disposed within the OASA and an edge block disposed on the edge surface portion lying outside the perimeter of the OASA. The optically transparent cover is supported by the support grid structure at a height above the optical sensor die while maintaining an air gap between the optically transparent cover and the OASA.

    IMAGE SENSORS WITH CONTROLLED AIR GAPS
    6.
    发明申请
    IMAGE SENSORS WITH CONTROLLED AIR GAPS 有权

    公开(公告)号：US20220013563A1

    公开(公告)日：2022-01-13

    申请号：US16948799

    申请日：2020-10-01

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Nathan Wayne CHAPMAN ,  Brian Anthony VAARTSTRA ,  Amanda Thuy Trang VU

    IPC: H01L27/146

    Abstract: An image sensor with uniform, well-controlled air gaps is provided. A structure that is at least partially filled with organic material may be formed on the image sensor. A hybrid organic/inorganic film layer may be formed over the organic material. The image sensor may then be exposed to energy, which causes the organic material to sublimate through the hybrid film layer, which itself may become a gas permeable layer when exposed to energy. After sublimation, the regions where the organic material was previously filled become air gaps with a low index of refraction. Air gaps formed in this way can be configured over photodiodes as light guides or focusing structures, as concave/convex microlenses, in between photodiodes as isolation structures, in between color filter elements to reduce crosstalk, and/or over microlenses to enhancing focusing power.

    METHODS OF FORMING THREE-DIMENSIONAL MICROLENSES FOR IMAGING PIXELS
    7.
    发明申请
    METHODS OF FORMING THREE-DIMENSIONAL MICROLENSES FOR IMAGING PIXELS 审中-公开

    公开(公告)号：US20200183057A1

    公开(公告)日：2020-06-11

    申请号：US16214972

    申请日：2018-12-10

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Ulrich BOETTIGER ,  Brian Anthony VAARTSTRA

    IPC: G02B3/00 ,  B33Y10/00 ,  B33Y80/00 ,  B29D11/00 ,  G03F7/00 ,  B41M3/00

    Abstract: Three-dimensional structures may be formed on a substrate using a propellant that may decompose to form a gaseous byproduct. At least one overlying shell layer may deform due to volumes of gas between the substrate and the shell layer formed by the gaseous byproduct, thereby forming the three-dimensional structures. Multiple layers of propellant and shell layers may be stacked to multi-layered, three-dimensional structures. Propellant with different concentrations and shell layers with different thicknesses and materials may be used to control the shapes formed when the propellant is decomposed. Alternatively, porous layers may be deposited on a substrate and heated to expand volumes of gas between the substrate and the porous layers, thereby forming three-dimensional structures. The three-dimensional structures may be formed as microlenses in imaging sensor pixels, as it may be desired to form an array of microlenses that vary in size, shape, or curvature across one or more pixels.

    STRUCTURES AND METHODS OF CREATING CLEAR PIXELS
    9.
    发明申请
    STRUCTURES AND METHODS OF CREATING CLEAR PIXELS 审中-公开

    公开(公告)号：US20190123083A1

    公开(公告)日：2019-04-25

    申请号：US15787959

    申请日：2017-10-19

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Swarnal BORTHAKUR ,  Nathan Wayne CHAPMAN ,  Brian Anthony VAARTSTRA

    IPC: H01L27/146

    Abstract: An image sensor may include an array of pixels having a color filter layer. The color filter layer may include colored elements and clear elements. The clear elements may be formed from transparent dielectric material. The color filter layer may include a grid of light-blocking material that forms color filter container structures having an array of openings in which the colored elements and the clear elements are formed. The color filter container structures may be formed from the same transparent dielectric material that forms the clear elements. The color filter container structures may be formed from opaque materials or transparent materials that form structures such as planarization layers, microlenses, or antireflection coatings for the array of pixels. The material used to form the color filter container structures may have a refractive index that is sufficiently high to prevent light from passing between adjacent elements in the color filter layer.

    IMAGE SENSORS WITH HIGH DYNAMIC RANGE AND AUTOFOCUSING HEXAGONAL PIXELS
    10.
    发明申请
    IMAGE SENSORS WITH HIGH DYNAMIC RANGE AND AUTOFOCUSING HEXAGONAL PIXELS 审中-公开

    公开(公告)号：US20180301484A1

    公开(公告)日：2018-10-18

    申请号：US15488646

    申请日：2017-04-17

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Brian Anthony VAARTSTRA ,  Nathan Wayne CHAPMAN

    IPC: H01L27/146 ,  H04N5/369

    Abstract: An image sensor may include phase detecting and autofocusing (PDAF) pixels. Each PDAF pixel may be hexagonal may be divided into two or more photodiode regions. A semi-spherical microlens may be formed over each PDAF pixel. Each PDAF pixel may be further divided into an inner sub-pixel portion and an outer sub-pixel portion to provide high dynamic range (HDR) functionality. The outer sub-pixel portion may be further divided into two or more photodiode regions to provide depth sensing capability. A semi-toroidal microlens may be formed over each PDAF HDR pixel. Each PDAF HDR pixel may also have a snowflake-like shape or some irregular shape. Smaller interstitial pixels may be dispersed among the larger snowflake-like pixels.

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