Ji. Nakamura et al., CMOS ACTIVE PIXEL IMAGE SENSOR WITH SIMPLE FLOATING-GATE PIXELS, I.E.E.E. transactions on electron devices, 42(9), 1995, pp. 1693-1694
A new pixel structure using a simple floating gate (SFG) has been prop
osed. The pixel consists of a coupling capacitor, a photogate, a barri
er gate and a MOS transistor. It features complete reset that results
in no kTC noise and no image lag, high blooming overload protection, n
ondestructive readout (NDRO), and CMOS compatibility. Its basic operat
ion has been confirmed with a 32(H) x 27(V) pixel area array. Since th
e pixel structure is relatively simple, small pixel size is feasible.