US 12,136,636 B2
Image sensor, camera assembly and mobile terminal
Cheng Tang, Dongguan (CN); Gong Zhang, Dongguan (CN); Xin Yang, Dongguan (CN); Rui Xu, Dongguan (CN); Wentao Wang, Dongguan (CN); He Lan, Dongguan (CN); Jianbo Sun, Dongguan (CN); Xiaotao Li, Dongguan (CN); and Haiyu Zhang, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Mar. 16, 2022, as Appl. No. 17/696,774.
Application 17/696,774 is a continuation of application No. PCT/CN2019/109518, filed on Sep. 30, 2019.
Prior Publication US 2022/0336508 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 27/146 (2006.01); H04N 25/13 (2023.01); H04N 25/133 (2023.01)
CPC H01L 27/14621 (2013.01) [H01L 27/14627 (2013.01); H04N 25/133 (2023.01); H04N 25/135 (2023.01)] 13 Claims
OG exemplary drawing
 
1. An image sensor, wherein the image sensor comprises:
panchromatic pixels; and
color pixels, wherein a spectral response of each of the color pixels is narrower than a spectral response of each of the panchromatic pixels, and a full-well capacity of each of the panchromatic pixels is greater than a full-well capacity of each of the color pixels;
wherein each pixel comprises a photoelectric conversion element, and each of the photoelectric conversion elements comprises a substrate and an n-well layer formed in the substrate, and wherein in a light-receiving direction of the image sensor, dimensions of cross-sections of the n-well layer of each of the panchromatic pixels gradually increase, dimensions of the cross-sections of the n-well layer of each of the color pixels gradually decrease, and the dimension of the smallest one of the cross-sections of the n-well layer of each of the panchromatic pixels is greater than or equal to the dimension of the largest one of the cross-sections of the n-well layer of each of the color pixels.