Solid-state imaging device and electronic apparatus

A solid-state imaging device, including:

• a plurality of pixels arranged in a matrix, wherein
• each of the pixels includes:
• a first semiconductor layer;
• a photoelectric conversion section disposed above the first semiconductor layer on a side of a first surface of the first semiconductor layer;
• an accumulation electrode disposed below the first semiconductor layer close to a side of a second surface of the first semiconductor layer on a side opposite to the first surface of the first semiconductor layer;
• a readout electrode, wherein at least a portion of the accumulation electrode is disposed between the readout electrode and the photoelectric conversion section;
• a semiconductor wiring extending from the second surface of the first semiconductor layer to the readout electrode, wherein the semiconductor wiring is a part of the first semiconductor layer;
• a floating diffusion region connected to the first semiconductor layer via at least the semiconductor wiring and the readout electrode;
• and
• a first gate electrode disposed close to the semiconductor wiring.