Transistors are classified as either NPN or PNP according to the arrangement of their N and P materials. Their basic construction and chemical treatment is implied by their names, "NPN" or "PNP."

A transistor is an electronic device that is used to allow one electrical signal to control another electrical signal, typically larger in either voltage or current.

We can create transistors with either a negative change or positive charge — nMOS or pMOS. Together they make complementary, or cMOS, and we use them to create circuits that perform computations, …

A transistor is an example of a 3 terminal 2 junction device. The name transistor is derived from the term transfer resistance. The current (voltage) through two terminals is controlled by the current (voltage) …

Transistor is a three-terminal semiconductor device, which consists of two PN junctions. The word “TRANSISTOR” is derived from transfer resistor, which describes its action of transferring a signal …

There are two basic transistor types : the bipolar junction transistor (BJT) and field-effect transistor (FET). As we shall see, these two transistor types differ in both their operating characteristics and …

These notes will discuss the operation and use of the two simplest devices made of silicon chips: “junction diodes” (or just “diodes”) and “bipolar junction transistors” (“BJTs” or often just “tran-sistors”).