Introduction to Semiconductor physics
Fundamentals of electrons and holes: Let’s begin our discussion from basics which is about atoms, electrons and their properties. As the MOSFET deals with both electrons and holes we need to have a clear idea on what the internal operation is in a circuit. Let’s focus on two special points in this topic: The electronic structure of atoms The interaction of atoms and electrons with excitation. Key points: The electrons in the metal absorb energy from the light, and some of the electrons receive enough energy to be ejected from the metal surface into the vacuum. This phenomenon is called the Photoelectric effect. The maximum energy ejected is given by E = hv – qΦ Where h = planck’s constant 6.626 V = velocity of electron q = magnitude of electric charge Φ = c...