公开(公告)号：US20210358994A1

公开(公告)日：2021-11-18

申请号：US17066277

申请日：2020-10-08

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Sang Joo Lee ,  Rui Wang ,  Hiroaki Ebihara ,  Tiejun Dai ,  Hiroki Ui

IPC: H01L27/146 ,  H01L27/148 ,  H04N5/378

Abstract: A pixel array includes pixel cells disposed in semiconductor material. Each of the pixel cells includes photodiodes, and a floating diffusion to receive image charge from the photodiodes. A source follower is coupled to the floating diffusion to generate an image signal in response image charge from the photodiodes. Drain regions of first and second row select transistors are coupled to a source of the source follower. A common junction is disposed in the semiconductor material between gates of the first and second row select transistors such that the drains of the first and second row select transistors are shared and coupled together through the semiconductor material of the common junction. The pixel cells are organized into a rows and columns with bitlines.

公开(公告)号：US20240073559A1

公开(公告)日：2024-02-29

申请号：US17893689

申请日：2022-08-23

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Young Woo Jung ,  Chih-Wei Hsiung ,  Vincent Venezia ,  Zhiqiang Lin ,  Sang Joo Lee

IPC: H04N5/369 ,  H01L27/146

CPC classification number: H04N5/36961 ,  H01L27/14612 ,  H01L27/14623 ,  H01L27/14636 ,  H01L27/14643 ,  H04N5/3698

Abstract: Electrical Phase Detection Auto Focus. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array disposed in a semiconductor material. Each pixel includes a plurality of photodiodes configured to receive incoming light through an illuminated surface of the semiconductor material. The plurality of pixels includes at least one autofocusing phase detection (PDAF) pixel having: a first subpixel without a light shielding, and a second subpixel without the light shielding. Autofocusing of the image sensor is at least in part determined based on different electrical outputs of the first subpixel and the second sub pixels.

公开(公告)号：US11658202B2

公开(公告)日：2023-05-23

申请号：US17066200

申请日：2020-10-08

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Hiroaki Ebihara ,  Sang Joo Lee ,  Rui Wang ,  Hiroki Ui

IPC: H04N5/232 ,  H01L27/146 ,  H01L27/148 ,  H04N23/84 ,  H04N25/13 ,  H04N25/46 ,  H04N25/75 ,  H04N25/77

CPC classification number: H01L27/14645 ,  H01L27/14612 ,  H01L27/14641 ,  H01L27/14812 ,  H01L27/14831 ,  H01L27/14868 ,  H04N23/84 ,  H04N25/13 ,  H04N25/46 ,  H04N25/75 ,  H04N25/77 ,  H01L27/14621

Abstract: A pixel array includes pixel cells, each including photodiodes. A source follower is coupled to generate an image signal in response image charge generated by the photodiodes. A first row select transistor is coupled to the source follower to output the image signal of the pixel cell. Pixel cells are organized into columns including a first column and a second column. The first row select transistors of the pixel cells of the first and second columns of pixel cells are coupled to first and second column bitlines, respectively. The pixel cells of the second column of pixel cells further include a second row select transistor coupled to the source follower to output the respective image signal to the first column bitline.

公开(公告)号：US11652131B2

公开(公告)日：2023-05-16

申请号：US17066277

申请日：2020-10-08

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Sang Joo Lee ,  Rui Wang ,  Hiroaki Ebihara ,  Tiejun Dai ,  Hiroki Ui

IPC: H01L27/146 ,  H04N5/378 ,  H04N5/374 ,  H01L27/148 ,  H04N9/04 ,  H04N5/347 ,  H04N5/3745

CPC classification number: H01L27/14645 ,  H01L27/14612 ,  H01L27/14641 ,  H01L27/14812 ,  H01L27/14831 ,  H01L27/14868 ,  H04N5/347 ,  H04N5/378 ,  H04N5/3745 ,  H04N9/0451 ,  H04N9/04551 ,  H01L27/14621

Abstract: A pixel array includes pixel cells disposed in semiconductor material. Each of the pixel cells includes photodiodes, and a floating diffusion to receive image charge from the photodiodes. A source follower is coupled to the floating diffusion to generate an image signal in response image charge from the photodiodes. Drain regions of first and second row select transistors are coupled to a source of the source follower. A common junction is disposed in the semiconductor material between gates of the first and second row select transistors such that the drains of the first and second row select transistors are shared and coupled together through the semiconductor material of the common junction. The pixel cells are organized into a rows and columns with bitlines.

公开(公告)号：US12273639B2

公开(公告)日：2025-04-08

申请号：US17893689

申请日：2022-08-23

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Young Woo Jung ,  Chih-Wei Hsiung ,  Vincent Venezia ,  Zhiqiang Lin ,  Sang Joo Lee

IPC: H04N25/704 ,  H04N23/67 ,  H04N25/709 ,  H10F39/00 ,  H10F39/18

Abstract: Electrical Phase Detection Auto Focus. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array disposed in a semiconductor material. Each pixel includes a plurality of photodiodes configured to receive incoming light through an illuminated surface of the semiconductor material. The plurality of pixels includes at least one autofocusing phase detection (PDAF) pixel having: a first subpixel without a light shielding, and a second subpixel without the light shielding. Autofocusing of the image sensor is at least in part determined based on different electrical outputs of the first subpixel and the second sub pixels.

公开(公告)号：US20210360175A1

公开(公告)日：2021-11-18

申请号：US17066200

申请日：2020-10-08

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Hiroaki Ebihara ,  Sang Joo Lee ,  Rui Wang ,  Hiroki Ui

IPC: H04N5/347 ,  H04N5/378 ,  H04N9/04

Abstract: A pixel array includes pixel cells, each including photodiodes. A source follower is coupled to generate an image signal in response image charge generated by the photodiodes. A first row select transistor is coupled to the source follower to output the image signal of the pixel cell. Pixel cells are organized into columns including a first column and a second column. The first row select transistors of the pixel cells of the first and second columns of pixel cells are coupled to first and second column bitlines, respectively. The pixel cells of the second column of pixel cells further include a second row select transistor coupled to the source follower to output the respective image signal to the first column bitline.