NV6106 Semiconductor Energy Band-Gap Measurement Trainer introduces you to a very useful nonlinear electronic device: “diode”. This trainer familiarizes the characterstic and the energy band gap of Germanium semiconductor diode. Semiconductor diode is an important element of most electronic devices and play an essential role in modern technology, because of its relevant conductivity. This trainer provides the crucial framework, which needed to understand the concept of an energy band gap and characteristic of a diode. Conductivity is directly related to energy bands and it is necessary for any detailed description of semiconductor devices. The trainer is based upon reverse diode characteristic, in which conductivity depends on temperature.