Patent ID: 11901391
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An imaging device, comprising:
a first substrate that has a pixel having a photodiode, and a floating diffusion that holds a charge converted by the photodiode;
a second substrate that has a pixel circuit and is stacked on the first substrate, the pixel circuit reading a pixel signal based on the charge held in the floating diffusion in the pixel;
a wire that penetrates the first substrate and the second substrate in a stacking direction and electrically connects the floating diffusion in the first substrate to an amplification transistor in the pixel circuit of the second substrate;
a trench that is formed at least in the second substrate, runs in parallel with the wire, and has a depth equal to or greater than a thickness of a semiconductor layer in the second substrate; and
a shield wire that connects a conductive substance embedded in the trench to a source of the amplification transistor.