Patent ID: 11910624
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A solid-state imaging element comprising:
a photoelectric conversion layer;
a first electrode and a second electrode opposed to each other with the photoelectric conversion layer interposed therebetween;
a semiconductor layer provided between the first electrode and the photoelectric conversion layer;
an accumulation electrode opposed to the photoelectric conversion layer with the semiconductor layer interposed therebetween;
an insulating film provided between the accumulation electrode and the semiconductor layer; and
a barrier layer provided between the semiconductor layer and the photoelectric conversion layer,
wherein either i) electron affinity of the barrier layer is smaller than electron affinity of the photoelectric conversion layer and electron affinity of the semiconductor layer, or ii) ionization potential of the barrier layer is larger than ionization potential of the photoelectric conversion layer and ionization potential of the semiconductor layer.