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

Claim 12:
13. 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 electrically connects the floating diffusion in the first substrate to an amplification transistor in the pixel circuit of the second substrate; and is formed in the first substrate and the second substrate;
a shield wire that electrically connects a gate of the amplification transistor and a source of the amplification transistor in a state where a well layer of the pixel circuit and a well layer of the amplification transistor in the pixel circuit are electrically isolated from each other, and shields the wire while running in parallel with the wire; and
a column signal processing unit that is connected to a plurality of the pixel circuits through a plurality of vertical signal lines,
wherein the column signal processing unit includes an AD converter performing AD conversion on a basis of a reference signal, and a load circuit, and outputs pixel data according to a voltage of the vertical signal line.