公开(公告)号：US20220344393A1

公开(公告)日：2022-10-27

申请号：US17546401

申请日：2021-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： YUJUNG CHOI ,  JUNHO SEOK ,  MUNHWAN KIM ,  WONCHUL CHOI

IPC: H01L27/146 ,  H01L27/148

Abstract: An image sensor including first and second pixel groups, each of which includes first to ninth pixels arranged to form a 3×3 array is disclosed. The image sensor further includes first to ninth transfer transistors disposed in each of the pixel groups to correspond to the first to ninth pixels, respectively, each of the first to ninth transfer transistors including a transfer gate and a floating diffusion region, a selection transistor disposed in at least one of the fourth to sixth pixels in each of the pixel group, and source follower transistors respectively disposed in at least two pixels of the first to third and seventh to ninth pixels in each of the pixel groups. Source follower gates of the source follower transistors may be connected to the floating diffusion region of each of the first to ninth transfer transistors.

公开(公告)号：US20210134872A1

公开(公告)日：2021-05-06

申请号：US16865618

申请日：2020-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： MUNHWAN KIM ,  YOUNGSUN OH

IPC: H01L27/146 ,  H04N5/3745 ,  H04N5/378 ,  H04N5/355

Abstract: An image sensor includes unit pixels of a first pixel group sharing a first floating diffusion region and associated with a single color filter, and unit pixels of a second pixel group sharing a second floating diffusion region and associated with the single color filter. Control logic may generate an image by obtaining capacitance having a first value from the first floating diffusion region at a first time, and obtaining capacitance having a second value different from the first value from the second floating diffusion region at a second time following the first time. The first pixel group and the second pixel s group have different sensitivity levels.