Hybrid image sensors with improved charge injection efficiency

    公开(公告)号:US20200304743A1

    公开(公告)日:2020-09-24

    申请号:US16607113

    申请日:2018-04-02

    申请人: APPLE INC.

    摘要: Imaging apparatus (20) includes a photosensitive medium (22) and a bias electrode (32), which is at least partially transparent, overlying the photosensitive medium. An array of pixel circuits (26) is formed on a semiconductor substrate (30). Each pixel circuit includes a pixel electrode (24) coupled to collect the charge carriers from the photosensitive medium; a readout circuit (75) configured to output a signal indicative of a quantity of the charge carriers collected by the pixel electrode; a skimming gate (48) coupled between the pixel electrode and the readout circuit; and a shutter gate (46) coupled in parallel with the skimming gate between a node (74) in the pixel circuit and a sink site. The shutter gate and the skimming gate are opened sequentially in each of a sequence of image frames so as to apply a global shutter to the array and then to read out the collected charge carriers via the skimming gate to the readout circuit.

    Hybrid image sensors with improved charge injection efficiency

    公开(公告)号:US11239267B2

    公开(公告)日:2022-02-01

    申请号:US16607113

    申请日:2018-04-02

    申请人: APPLE INC.

    摘要: Imaging apparatus (20) includes a photosensitive medium (22) and a bias electrode (32), which is at least partially transparent, overlying the photosensitive medium. An array of pixel circuits (26) is formed on a semiconductor substrate (30). Each pixel circuit includes a pixel electrode (24) coupled to collect the charge carriers from the photosensitive medium; a readout circuit (75) configured to output a signal indicative of a quantity of the charge carriers collected by the pixel electrode; a skimming gate (48) coupled between the pixel electrode and the readout circuit; and a shutter gate (46) coupled in parallel with the skimming gate between a node (74) in the pixel circuit and a sink site. The shutter gate and the skimming gate are opened sequentially in each of a sequence of image frames so as to apply a global shutter to the array and then to read out the collected charge carriers via the skimming gate to the readout circuit.

    Hybrid image sensors with improved charge injection efficiency

    公开(公告)号:US10192911B2

    公开(公告)日:2019-01-29

    申请号:US15939347

    申请日:2018-03-29

    申请人: APPLE INC.

    IPC分类号: H04N5/378 H01L27/146

    摘要: Imaging apparatus includes a photosensitive medium and a bias electrode, which is at least partially transparent, overlying the photosensitive medium. An array of pixel circuits is formed on a semiconductor substrate. Each pixel circuit includes a pixel electrode coupled to collect the charge carriers from the photosensitive medium; a readout circuit configured to output a signal indicative of a quantity of the charge carriers collected by the pixel electrode; a skimming gate coupled between the pixel electrode and the readout circuit; and a shutter gate coupled in parallel with the skimming gate between a node in the pixel circuit and a sink site. The shutter gate and the skimming gate are opened sequentially in each of a sequence of image frames so as to apply a global shutter to the array and then to read out the collected charge carriers via the skimming gate to the readout circuit.

    Hybrid image sensors with Improved charge injection efficiency

    公开(公告)号:US20180331138A1

    公开(公告)日:2018-11-15

    申请号:US15939347

    申请日:2018-03-29

    申请人: APPLE INC.

    IPC分类号: H01L27/146 H04N5/378

    摘要: Imaging apparatus includes a photosensitive medium and a bias electrode, which is at least partially transparent, overlying the photosensitive medium. An array of pixel circuits is formed on a semiconductor substrate. Each pixel circuit includes a pixel electrode coupled to collect the charge carriers from the photosensitive medium; a readout circuit configured to output a signal indicative of a quantity of the charge carriers collected by the pixel electrode; a skimming gate coupled between the pixel electrode and the readout circuit; and a shutter gate coupled in parallel with the skimming gate between a node in the pixel circuit and a sink site. The shutter gate and the skimming gate are opened sequentially in each of a sequence of image frames so as to apply a global shutter to the array and then to read out the collected charge carriers via the skimming gate to the readout circuit.