公开(公告)号：US20230043844A1

公开(公告)日：2023-02-09

申请号：US17963015

申请日：2022-10-10

Applicant: OmniVision Technologies, Inc.

Inventor： Alireza BONAKDAR ,  Shinn-Jhy LIAN ,  Badrinath PADMANABHAN

IPC: H01L27/146

Abstract: A flare-blocking image sensor includes large pixels and small pixels, a microlens, and an opaque element. The large pixels and small pixels form a first and second pixel array respectively, each having a pixel pitch Px and Py. The second pixel array is offset from the first pixel array by ½Px and ½Py. A first large pixel of the large pixels is between and collinear with a first and a second small pixel separated by √{square root over (Px2+Py2)} in a first direction and each having a width W less than both pixel pitch Px and Py. The microlens is aligned with the first large pixel. The opaque element is between the first large pixel and the microlens and extends, in the first direction, less than 1 2 ⁢ ( P x 2 + P y 2 - W ) from the first small pixel toward the second small pixel. The opaque element has a width perpendicular to the first direction not exceeding width W.

公开(公告)号：US20210242265A1

公开(公告)日：2021-08-05

申请号：US16777193

申请日：2020-01-30

Applicant: OmniVision Technologies, Inc.

Inventor： Alireza BONAKDAR ,  Zhiqiang LIN ,  Bill PHAN ,  Badrinath PADMANABHAN

IPC: H01L27/146

Abstract: An image sensor with quantum efficiency enhanced by inverted pyramids includes a semiconductor substrate and a plurality of microlenses. The semiconductor substrate includes an array of pixels. Each of the pixels is configured to convert light incident on the pixel to an electrical output signal, the semiconductor substrate having a top surface for receiving the light. The top surface forms a plurality of inverted pyramids in each pixel. The plurality of microlenses are disposed above the top surface and aligned to the plurality of inverted pyramids, respectively.

公开(公告)号：US20210242259A1

公开(公告)日：2021-08-05

申请号：US16777027

申请日：2020-01-30

Applicant: OmniVision Technologies, Inc.

Inventor： Alireza BONAKDAR ,  Shinn-Jhy LIAN ,  Badrinath PADMANABHAN

IPC: H01L27/146

Abstract: A flare-blocking image sensor includes large pixels and small pixels, a microlens, and an opaque element. The large pixels and small pixels form a first and second pixel array respectively, each having a pixel pitch Px and Py. The second pixel array is offset from the first pixel array by ½Px and ½Py. A first large pixel of the large pixels is between and collinear with a first and a second small pixel separated by √{square root over (Px2+Py2 )} in a first direction and each having a width W less than both pixel pitch Px and Py. The microlens is aligned with the first large pixel. The opaque element is between the first large pixel and the microlens and extends, in the first direction, less than ½(√{square root over (Px2+Py2)}−W) from the first small pixel toward the second small pixel. The opaque element has a width perpendicular to the first direction not exceeding width W.