2:07 An important principle, 3:33 The fermi level in equilibrium, 4:20 Band bending, 5:49 Determine electrostatic potential from the diagram, 6:56 Determine electric field from the diagram, 7:55 Determine the electron/hole density from the diagram 10:29 Determine space charge density from the diagram, 11:28 Example: PN junction in equilibrium, 19:34 Example: non-uniformly doped semiconductors, 22:32 Summary