公开(公告)号：US20220109015A1

公开(公告)日：2022-04-07

申请号：US17477232

申请日：2021-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taesub Jung ,  Kyungho Lee ,  Masato Fujita ,  Doosik Seol ,  Kyungduck Lee

IPC: H01L27/146 ,  H01L27/148

Abstract: An image sensor is provided. The image sensor includes a first pixel region and a second pixel region located within a semiconductor substrate, a first isolation layer surrounding the first pixel region and the second pixel region, a second isolation layer located between the first pixel region and the second pixel region, and a microlens arranged on the first pixel region and the second pixel region. Each of the first pixel region and the second pixel region include a photoelectric conversion device. The second isolation layer includes at least one first open region that exposes a portion of an area located between the first pixel region and the second pixel region.

公开(公告)号：US11942499B2

公开(公告)日：2024-03-26

申请号：US17232735

申请日：2021-04-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Masato Fujita ,  Doosik Seol ,  Kyungduck Lee ,  Kyungho Lee ,  Taesub Jung

IPC: H01L27/146 ,  H04N25/704 ,  H04N25/79

CPC classification number: H01L27/1463 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14645 ,  H01L27/14685 ,  H01L27/14689 ,  H04N25/704 ,  H04N25/79

Abstract: An image sensor includes a pixel array and a logic circuit. The pixel array includes a pixel isolation layer between a plurality of pixels. Each of the plurality of pixels include a pixel circuit below at least one photodiode. The logic circuit acquires a pixel signal from the plurality of pixels. The pixel array includes at least one autofocusing pixel, which includes a first photodiode, a second photodiode, a pixel internal isolation layer between the first and second photodiodes, and a microlens on the first and second photodiodes. The pixel internal isolation layer includes a first pixel internal isolation layer and a second pixel internal isolation layer, separated from each other in a first direction, perpendicular to the upper surface of the substrate, and the first pixel internal isolation layer and the second pixel internal isolation layer include different materials.

公开(公告)号：US12034026B2

公开(公告)日：2024-07-09

申请号：US17465217

申请日：2021-09-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyuncheol Kim ,  Kyungho Lee ,  Kazunori Kakehi ,  Doosik Seol ,  Kyungduck Lee ,  Taesub Jung ,  Masato Fujita

IPC: H01L27/146

CPC classification number: H01L27/1463 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/1464 ,  H01L27/14645 ,  H01L27/14683

Abstract: An image sensor includes a substrate having first and second surfaces, pixel regions arranged in a direction parallel to the first surface, first and second photodiodes isolated from each other in each of the pixel regions, a first device isolation film between the pixel regions, a pair of second device isolation films between the first and second photodiodes and extending from the first device isolation film, a doped layer adjacent to the pair of second device isolation films and extending from the second surface to a predetermined depth and spaced apart from the first surface, the doped layer being isolated from the first device isolation film, and a barrier area between the pair of second device isolation films and having a potential greater than a potential of a portion of the substrate adjacent to the barrier area.

公开(公告)号：US12113084B2

公开(公告)日：2024-10-08

申请号：US17477232

申请日：2021-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taesub Jung ,  Kyungho Lee ,  Masato Fujita ,  Doosik Seol ,  Kyungduck Lee

IPC: H01L27/146 ,  H01L27/148

CPC classification number: H01L27/1463 ,  H01L27/14612 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14636 ,  H01L27/14831

Abstract: An image sensor is provided. The image sensor includes a first pixel region and a second pixel region located within a semiconductor substrate, a first isolation layer surrounding the first pixel region and the second pixel region, a second isolation layer located between the first pixel region and the second pixel region, and a microlens arranged on the first pixel region and the second pixel region. Each of the first pixel region and the second pixel region include a photoelectric conversion device. The second isolation layer includes at least one first open region that exposes a portion of an area located between the first pixel region and the second pixel region.