This study introduces a new modified Moore – Gibson – Thompson Photo-Thermal (MGTPT) theory with two temperatures for semiconductor material. The photo-thermoelastic effects has been investigated in an infinitely constrained semiconducting solid cylinder subjected to variable heat flux in the form of exponential laser pulse. The Laplace transforms were used for the solution of the mathematical model in the transformed domain. The numerical inversion was applied to obtain the displacement components, the conductive temperature, the carrier density, and the thermal stresses in the physical domain. The impact of different theories of thermoelasticity with two temperatures on the displacement, temperature, thermal stresses and carrier density were represented graphically and discussed using Matlab software.