Abstract: A solid-state imaging apparatus allows precise observation and analysis of ultra-high-speed phenomena at a frame rate more than 100 Mega frames per second, which has been targeted in advanced science and engineering. The solid-state imaging apparatus comprises pixels arranged in M columns and N rows. Each pixel includes a first layer for photoelectric conversion and a second layer having m charge collection devices, where m is equal to or greater than 3, for collecting and storing charges generated light incident on a substantially whole area of the pixel, and a readout device for reading out the charges, where m charge collection devices are locally placed in an area around a center of the pixel. The second layer further includes a second storage device for storing the charges collected and stored by each of the collection devices.