Types of Transistors and How They Work

Transistor is a semiconductor device invented by John Bardeen, Walter Brattain and William Shockley in 1947 and they received the Nobel Prize in Physics for this invention in 1956. It is a device used to amplify and switch electrical signals. Large number of transistors can be included in a single chip known as an integrated circuit, which are the building blocks of modern computers and many other solid state devices. Most of the transistors are currently made from silicon while germanium was used earlier. Field effect transistors have only one kind of charge carrier while bipolar junction transistors may have two kinds of charge carriers. In comparison to vacuum tubes, transistors are much smaller and require less power, often working at much lower voltages. Read More: https://johnsonfrancis.org/techworld/...