US 11,889,217 B2
Image sensor including auto-focus pixels
Jeongjin Cho, Yongin-si (KR); Youjin Jeong, Seoul (KR); and Taesub Jung, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD.
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 6, 2022, as Appl. No. 17/714,687.
Claims priority of application No. 10-2021-0046100 (KR), filed on Apr. 8, 2021.
Prior Publication US 2022/0329747 A1, Oct. 13, 2022
Int. Cl. H04N 25/77 (2023.01); G02B 3/00 (2006.01); H01L 27/146 (2006.01); G02B 5/20 (2006.01); H04N 25/11 (2023.01)
CPC H04N 25/77 (2023.01) [G02B 3/0043 (2013.01); G02B 3/0056 (2013.01); G02B 5/201 (2013.01); H01L 27/14607 (2013.01); H01L 27/14621 (2013.01); H01L 27/14627 (2013.01); H01L 27/14645 (2013.01); H04N 25/11 (2023.01)] 15 Claims
OG exemplary drawing
 
1. An image sensor, comprising:
a pixel array including pixels arranged in a first direction and a second direction, wherein the pixels includes a first normal pixel and a first auto focus (AF) pixel adjacent in the first direction, and a second AF pixel and a second normal pixel adjacent in the first direction,
wherein each of the first AF pixel and the second AF pixel includes at least two photodiodes,
each of the first normal pixel and the second normal pixel has a quadrangular shape,
a first length of the first AF pixel in the first direction is greater than a first length of the first normal pixel in the first direction,
a first length of the second AF pixel in the first direction is greater than a first length of the second normal pixel in the first direction,
each of the first AF pixel and the second AF pixel has an octagonal shape,
a second length of the first AF pixel in the second direction is greater than a second length of the first normal pixel in the second direction, and
a second length of the second AF pixel in the second direction is greater than a second length of the second normal pixel in the second direction.