Section _ Fabrication and formation of programmable PUT transistors
Understanding and examining the Programmable Unijunction Transistor (PUT)
Researcher and author: Dr. ( Afshin Rashid)
Note: A PUT (Programmable Unijunction Transistor) is made up of four P and N type semiconductors. The bases of a PUT are called the anode, gate, and cathode.
This element also has a negative resistance region like the UJT transistor . Hence we can use it in oscillators or thyristor control circuits. The choice of the name PUT, which means programmable UJT, was chosen because the voltage value can be controlled because in PUT, the voltage value can be programmed or adjusted to the desired value. The put transistor is a controllable transistor, so we can use it to adjust the voltage to the desired value.
The PUT element is widely used in circuits like oscillators, timers. This transistor has a four-layer structure just like thyristors and has three terminals called anode (A), cathode (K) and gate (G) again like thyristors. This transistor is called programmable only because its characteristics and parameters are very similar to single-function transistors. This is programming.
Researcher and author: Dr. ( Afshin Rashid)