US 11,671,723 B2
Image sensing device including light shielding pattern
Kilbock Lee, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on May 19, 2021, as Appl. No. 17/324,427.
Claims priority of application No. 10-2021-0008717 (KR), filed on Jan. 21, 2021.
Prior Publication US 2022/0232184 A1, Jul. 21, 2022
Int. Cl. H04N 25/704 (2023.01); H01L 27/146 (2006.01); H04N 23/67 (2023.01); H04N 25/77 (2023.01)
CPC H04N 25/704 (2023.01) [H01L 27/14623 (2013.01); H01L 27/14643 (2013.01); H04N 23/672 (2023.01); H04N 25/77 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensing device, comprising:
a substrate; and
a pixel array including one or more phase difference detection pixel groups supported by the substrate and structured to respond to incident light, each phase difference detection pixel group including two or more phase difference detection pixels structured to detect a phase difference of the incident light,
wherein the phase difference detection pixel group comprises a light shielding pattern structured to provide each of the two or more phase difference detection pixels with a plurality of light receiving regions, each light receiving region formed along two contiguous sides of each of the two or more phase difference detection pixels,
wherein the plurality of light receiving regions of the phase difference detection pixels are arranged along an edge of the phase difference detection pixel group with the light shielding pattern being at a center of the phase difference detection pixel group and spaced apart from the edge of the phase difference detection pixel group.