This paper presents a novel model for analyzing the behavior of a generalized photo-microelongated thermoelastic semiconductor system that incorporates hydrodynamic and poroelastic effects. Motivated by the need to understand semiconductor dynamics under coupled mechanical, thermal, and photonic stimuli for advanced technological applications, the study develops a one-dimensional (1D) framework using Laplace transformation to derive analytical solutions. Numerical computations and graphical representations illustrate the evolution of critical physical quantities such as carrier density, temperature distribution, displacement, pore water pressure, and stress functions, emphasizing the influence of time progression, relaxation parameters, and microelongation effects. The results highlight the unique contributions of hydrodynamic and poroelastic interactions, providing insights into semiconductor behavior at microscales. This comprehensive analysis advances the understanding of semiconductor materials, offering potential applications in photonic devices, energy systems, and thermal management technologies while providing a theoretical framework to predict material behavior under diverse external stimuli, minimizing the need for costly experiments.