Patent ID: 11961855
Assignee: SK HYNIX INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image sensing device comprising:
a pixel array including a plurality of subarrays consecutively arranged in the pixel array, each subarray including a first unit pixel block and a second unit pixel block adjacent to each other,
wherein each of the first and second unit pixel blocks includes:
a first subpixel block including a first floating diffusion region and a plurality of unit pixels sharing the first floating diffusion region;
a second subpixel block including a second floating diffusion region and a plurality of unit pixels sharing the second floating diffusion region, the second floating diffusion region being configured to form a common floating diffusion node by connecting to the first floating diffusion region; and
a first transistor array and a second transistor array respectively disposed at opposing sides of the first subpixel block,
wherein the first transistor array includes:
a plurality of conversion gain transistors configured to adjust a capacitance of the common floating diffusion node based on a plurality of conversion gain control signals; and
a reset transistor configured to initialize the common floating diffusion node based on a reset signal,
wherein the first transistor array of the first unit pixel block and the first transistor array of the second unit pixel block are arranged symmetrically.