GaAs/AlGaAs multlple quantum well (MQW) structure was grown by molecular beam epitaxy.We have researched and fabricated self electro optic effect device (SEED) arrays for flip chip bonded devices.Some investigation on opotelectronic CMOS SEED smart pixels using a hybrid integration of SEED arrays flip chip bonding directly on silicon CMOS circuits is reported.The measurement results under applied biases show the good optoelectronic characteristics of devices.