Patent ID: 8084795

Claim:
A optoelectronic transistor, comprising: A MOSFET formed on a substrate; A quantum-well laser embedded and integrated into a drain region of the transistor, wherein the quantum-well laser includes multiple very thin layers of semiconductors along the p-n junction of the drain, with alternative (high and low) bandgap energies and different doping concentrations, forming many electric potential (quantum) wells to enhance the laser effects when the MOSFET is switched on; A wave guide integrated near the drain region, enclosing and surrounding the quantum well laser or other light or microwave emitting devices, wherein the wave guide includes multiple layers of semiconductors with various indices of refraction to confine lights, or dielectric materials for total refraction, as a wave guide for lights or microwaves; A photon sensing device (a light or a microwave sensor, or an avalanche photo diode—APD) integrated near a source or the drain or a body regions, wherein the photon sensing device includes a p typed doped region, a very lightly doped region, and an n type doped region as a photon sensor to collect the photons or microwaves from the light or microwave emitting devices in the drain.