Patent ID: 11961856
Assignee: SK HYNIX INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An image sensing device, comprising:
a first unit pixel block including a first floating diffusion region configured to store photocharges generated in response to an incident light incident on the first unit pixel block and a first portion of a first active region coupled to the first floating diffusion region through a first common floating diffusion node and including a first conversion gain transistor configured to change capacitance of the first common floating diffusion node;
a second unit pixel block disposed adjacent to the first unit pixel block and including a second floating diffusion region configured to store photocharges generated in response to an incident light incident on the second unit pixel block and a second portion of the first active region coupled to the second floating diffusion region through a second common floating diffusion node and including a second conversion gain transistor configured to change capacitance of the second common floating diffusion node; and
an isolation transistor disposed between the first unit pixel block and the second unit pixel block in the first active region to isolate the first conversion gain transistor and the second conversion gain transistor from each other.