Patent ID: 11201185

Abstract:
Provided is a solid-state imaging device including a first substrate that includes a pixel unit, a first semiconductor substrate, and a first multi-layered wiring layer stacked, a second substrate that includes circuit, a second semiconductor substrate, and a second multi-layered wiring layer stacked, the circuit having a predetermined function, a third substrate that includes a circuit, a third semiconductor substrate, and a third multi-layered wiring layer. The first substrate and the second substrate being bonded together such that the first multi-layered wiring layer is opposite to the second semiconductor substrate, and a first coupling structure for electrically coupling the circuit of the first substrate with the circuit of the second substrate, the first coupling structure is on bonding surfaces of the first substrate and the second substrate, and includes an electrode junction structure in which electrodes on the respective bonding surfaces are joined to each other in direct contact.