The operation of present-day electronic and optoelectronic semiconductor devices (diodes, transistors, lasers, light-emitting diodes) requires quantum mechanics. Familiarity with this field of physics and the way these concepts are implemented commercially is of high importance for future electronics engineers. New technologies create new applications, and future innovations in the field of electronics and optoelectronic devices will be founded on knowledge of quantum mechanics and the interaction between electromagnetic waves and matter. The course covers the following topics: - Foundation of quantum mechanics: duality, Schrödinger's equation and operators - Localized electron states, periodic potential and semiconductors - Carrier density and probability of population of energy levels - Semiconductor heterojunctions: quantum wells, diodes, transistors - Semiclassical transport: Boltzmann transport equation, scattering and Fermi golden rule - Carrier mobility and drift velocity in low-dimensional devices (FinFET, HEMT) - Quantum transport: Green's functions and observables, coherent and incoherent transport, ballistic, quasi-ballistic and dissipative transport - Light-matter interaction: time-dependent perturbation, absorption, light amplification and spontaneous emission - Optoelectronic devices: LED, laser, photodetector, SPAD