Patent ID: 8248498

Claim:
A microelectronic image sensor array device comprising: a plurality of elementary cells laid out according to an array; at least a first cell and a second cell of said array being each provided with at least one photosensitive zone for capturing one or more photons and converting said one or more photons into one or more electrons; an electronic avalanche multiplier device configured to produce, during a cycle known as a “multiplication” cycle, according to a multiplication gain, a higher number of electrons than a number of electrons converted by the photosensitive zone, the multiplier device being formed of a plurality of gate electrodes; and a control circuit configured to apply control signals to gates of the multiplier devices of the cells of the array, the control circuit being adapted to apply first control signals to gates of a first multiplier device of at least a first cell of said array, and to apply second control signals, different from said first control signals, to gates of a second multiplier device of said second cell of the array, said first multiplier device having a first multiplication gain and said second multiplier device having a second multiplication gain, said first multiplication gain and said second multiplication gain being different and individually modifiable.