Patent ID: 11862660
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. An image sensor comprising:
a first semiconductor substrate including a first surface and a second surface, at least one transistor formed on the first surface of the first semiconductor substrate;
a first insulating layer stacked on the at least one transistor;
a second semiconductor substrate having a first surface and a second surface,
a photodiode formed in the second semiconductor substrate;
a transfer gate pattern and a floating diffusion region of a transfer transistor formed on the first surface of the second semiconductor substrate;
a second insulating layer disposed between the first surface of the second semiconductor substrate and the first insulating layer;
wherein the first surface of the first semiconductor substrate and the first surface of the second semiconductor substrate face each other, and the first and second insulating layers are interposed between the first and second semiconductor substrates,
wherein at least a part of the transfer gate pattern of the transfer transistor is disposed in the second semiconductor substrate.