Semiconductor Download free semiconductor devices physics and technology 3rd edition Simon M. Sze & Ming-Kwei Lee solutions manual pdf | solution devices have been studied for over 135 years.3 date, there are 18 major devices, with over 140 device variations related to them.4 All these devices can be constructed from a small number of device building blocks. Figure 2a is the metal-semiconductor interface, which is an intimate contact between a metal and a semiconductor. This building block was the first semiconductor device ever studied (in the year 1874). This interface can be used as a rectifying contact; that is, the device allows electrical current to flow easily only in one direction, or as an ohmic contact, which can pass current in either direction with a negligibly small voltage drop.