Patent ID: 8704927

Claim:
A solid-state imaging apparatus comprising: a pixel unit including a matrix of pixels converting light to an electric signal; and a driving unit driving the pixel unit, wherein each of the pixels includes a photoelectric conversion film carrying out photoelectric conversion, an injection unit injecting a charge generated at the photoelectric conversion film to a contact unit embedded in a semiconductor substrate, an accumulation unit having a p-type region and an n-type region and accumulating the charge generated at the photoelectric conversion film and being disposed in the semiconductor substrate such that the n-type region of the accumulation unit is located below both the p-type region of the accumulation unit and the contact unit in the semiconductor substrate, and a barrier unit providing an electric potential barrier between the photoelectric conversion film and the accumulation unit, wherein a side edge of the contact unit is in contact with the accumulation unit such that an entire top surface of the barrier unit is only in contact with a bottom surface of the accumulation unit and a bottom surface of the contact unit, and wherein the pixel unit selectively injects the charge to the injection unit of the pixel.