公开(公告)号：US20210175269A1

公开(公告)日：2021-06-10

申请号：US16996047

申请日：2020-08-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Masato FUJITA ,  Yunki LEE ,  Eunsub SHIM ,  Kyungho LEE ,  Bumsuk KIM ,  Taehan KIM

IPC: H01L27/146 ,  H04N5/355 ,  H04N5/369 ,  H04N5/3745

Abstract: An image sensor includes a first photodiode group, a second photodiode group, a first transfer transistor group, a second transfer transistor group, a floating diffusion region of a substrate in which electric charges generated in the first photodiode group are stored, and a power supply node for applying a power supply voltage to the second photodiode group. A barrier voltage is applied to at least one transfer transistor of the second transfer transistor group. The power supply voltage allows electric charges, generated in the second photodiode group, to migrate to the power supply node, and the barrier voltage forms a potential barrier between the second photodiode group and the floating diffusion region.

公开(公告)号：US20240186348A1

公开(公告)日：2024-06-06

申请号：US18365522

申请日：2023-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taehan KIM ,  Dongmin KEUM ,  Bumsuk KIM ,  Jinho KIM ,  Yunki LEE

IPC: H01L27/146 ,  H04N25/704

CPC classification number: H01L27/14621 ,  H01L27/14627 ,  H04N25/704

Abstract: An image sensor includes: a chip structure including normal pixels and auto focus pixels; a grid structure disposed on the chip structure; and color filter regions defined by the grid structure over the chip structure. The color filter regions include normal filter regions and auto focus filter regions. The normal filter regions correspond to the normal pixels. The chip structure includes a first region at a first distance, and a second region a second distance greater than the first distance. The auto focus filter regions include a first auto focus filter region on the first region and a second auto focus filter region on the second region. A first width of a first grid portion disposed adjacent the first auto focus filter region among the grid structure is narrower than a second width of a second grid portion disposed adjacent the second auto focus filter region among the grid structure.

公开(公告)号：US20230122283A1

公开(公告)日：2023-04-20

申请号：US17812487

申请日：2022-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taehan KIM ,  Yunki LEE ,  Dongmin KEUM ,  Bumsuk KIM ,  Kwanghee LEE ,  Yeaju JANG

IPC: H04N5/369 ,  H01L27/146 ,  H04N5/3745

Abstract: An image sensor includes a pixel array in which a plurality of normal pixels and a plurality of autofocus (AF) pixels are disposed, and a logic circuit. The logic circuit provides an autofocus function using a phase difference between pixel signals obtained from each of the plurality of AF pixels. Each of the AF pixels includes a single AF lens disposed on a pair of pixel areas. An AF lens of the AF pixel spaced apart from a center of the pixel array may have an area larger than an area of the AF lens of the AF pixel adjacent to the center.