公开(公告)号：US11252381B2

公开(公告)日：2022-02-15

申请号：US16711237

申请日：2019-12-11

Applicant: OmniVision Technologies, Inc.

Inventor： Chin Poh Pang ,  Guansong Liu ,  Xiaodong Yang ,  Boyang Zhang ,  Hongjun Li ,  Da Meng

IPC: H04N5/335 ,  H04N9/04 ,  H04N5/378

Abstract: An image sensor includes a plurality of photodiodes, a plurality of color filters, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array, each of the plurality of photodiodes disposed within respective portions of a semiconductor material with a first lateral area. The plurality of color filters are arranged as a color filter array optically aligned with the photodiode array. Each of the plurality of color filters having a second lateral area greater than the first lateral area. The plurality of microlenses are arranged as a microlens array optically aligned with the color filter array and the photodiode array. Each of the plurality of microlenses have a third later area greater than the first lateral area and less than the second lateral area.

公开(公告)号：US20210126033A1

公开(公告)日：2021-04-29

申请号：US16666129

申请日：2019-10-28

Applicant: OmniVision Technologies, Inc.

Inventor： Xiaodong Yang ,  Guansong Liu ,  Peng Lin ,  Chin Poh Pang ,  Da Meng

IPC: H01L27/146 ,  H04N9/04 ,  H04N5/232

Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.

公开(公告)号：US11367743B2

公开(公告)日：2022-06-21

申请号：US16666129

申请日：2019-10-28

Applicant: OmniVision Technologies, Inc.

Inventor： Xiaodong Yang ,  Guansong Liu ,  Peng Lin ,  Chin Poh Pang ,  Da Meng

IPC: H01L27/146 ,  H04N5/232 ,  H04N9/04

Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.

公开(公告)号：US20210185286A1

公开(公告)日：2021-06-17

申请号：US16711237

申请日：2019-12-11

Applicant: OmniVision Technologies, Inc.

Inventor： Chin Poh Pang ,  Guansong Liu ,  Xiaodong Yang ,  Boyang Zhang ,  Hongjun Li ,  Da Meng

IPC: H04N9/04 ,  H04N5/378

Abstract: An image sensor includes a plurality of photodiodes, a plurality of color filters, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array, each of the plurality of photodiodes disposed within respective portions of a semiconductor material with a first lateral area. The plurality of color filters are arranged as a color filter array optically aligned with the photodiode array. Each of the plurality of color filters having a second lateral area greater than the first lateral area. The plurality of microlenses are arranged as a microlens array optically aligned with the color filter array and the photodiode array. Each of the plurality of microlenses have a third later area greater than the first lateral area and less than the second lateral area.

公开(公告)号：US20230395628A1

公开(公告)日：2023-12-07

申请号：US17832399

申请日：2022-06-03

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Chin Poh Pang ,  Wei Deng ,  Chen-Wei Lu ,  Da Meng ,  Guansong Liu ,  Yin Qian ,  Xiaodong Yang ,  Hongjun Li ,  Zhiqiang Lin ,  Chao Niu

IPC: H01L27/146

CPC classification number: H01L27/14627 ,  H01L27/14645

Abstract: Half Quad Photodiode (QPD) for improving QPD channel imbalance. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor material. Each pixel includes a plurality of subpixels. Each subpixel comprises a plurality of first photodiodes, a plurality of second photodiodes and a plurality of third photodiodes. The plurality of pixels are configured to receive incoming light through an illuminated surface of the semiconductor material. A plurality of small microlenses are individually distributed over individual first photodiodes and individual second photodiodes of each subpixel. A plurality of large microlenses are each distributed over a plurality of third photodiodes of each subpixel. A diameter of the small microlenses is smaller than a diameter of the large microlenses.

公开(公告)号：US20230395626A1

公开(公告)日：2023-12-07

申请号：US17832335

申请日：2022-06-03

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Xiaodong Yang ,  Guansong Liu ,  Wei Deng ,  Chin Poh Pang ,  Da Meng ,  Hongjun Li

IPC: H01L27/146 ,  H04N5/232 ,  H04N5/369

CPC classification number: H01L27/14627 ,  H01L27/14645 ,  H04N5/232122 ,  H04N5/36961

Abstract: Image sensors for Phase-Detection Auto Focus (PDAF) are provided. An image sensor includes a pixel including a plurality of photodiodes disposed in a semiconductor material according to an arrangement. The arrangement defines a first image subpixel comprising a plurality of first photodiodes, a second image subpixel comprising a plurality of second photodiodes, and a third image subpixel including a plurality of third photodiodes, and a phase detection subpixel comprising a first photodiode, a second photodiode, or a third photodiodes. The pixel can include a plurality of first micro-lenses disposed individually overlying at least a subset of the plurality of photodiodes of the first, second and third image subpixels. The pixel can also include a second micro-lens disposed overlying the phase detection subpixel, a first micro-lens of the first micro-lenses having a first radius less than a second radius of the second micro-lens.

公开(公告)号：US11356626B2

公开(公告)日：2022-06-07

申请号：US16855850

申请日：2020-04-22

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Rui Wang ,  Eiichi Funatsu ,  Woon Il Choi ,  Keiji Mabuchi ,  Chin Poh Pang ,  Qingfei Chen ,  Da Meng ,  Vivian Wang

IPC: H04N5/369 ,  H01L27/146 ,  H04N5/355 ,  H04N5/378

Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.

公开(公告)号：US20210337144A1

公开(公告)日：2021-10-28

申请号：US16855850

申请日：2020-04-22

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Rui Wang ,  Eiichi Funatsu ,  Woon Il Choi ,  Keiji Mabuchi ,  Chin Poh Pang ,  Qingfei Chen ,  Da Meng ,  Vivian Wang

IPC: H04N5/369 ,  H01L27/146 ,  H04N5/355 ,  H04N5/378

Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.