Patent ID: 11916095
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An electronic apparatus, comprising:
an optical system;
an imaging device that receives light from the optical system, the imaging device, comprising:
a photoelectric converter that generates a charge depending on incident light;
a first charge holding section that is formed near a front surface of a semiconductor substrate, and holds the charge;

a first charge transfer section that transfers the charge from the photoelectric converter to the first charge holding section;
an auxiliary charge holding section that is formed to underlie the first charge holding section in the semiconductor substrate, and holds a portion of the charges held in the first charge holding section;
a transfer route that transfers the charge between the first charge holding section and the auxiliary charge holding section; and
an image signal generator that generates an image signal based on the charges held in the first charge holding section and the auxiliary charge holding section; and

a digital signal processor that processes signals received from the imaging device,
wherein semiconductor regions of each of the first charge holding section and the auxiliary charge holding section have a higher impurity concentration than an impurity concentration of a semiconductor region of the photoelectric converter.