A diode is a two-terminal device that acts as a one-way switch. The Schottky is a metal-semiconductor diode known for very low forward voltage in which the metal forms the anode and the n-type semiconductor acts as the cathode. The diode is named after German physicist Walter H. Schottky. It is also called Schottky barrier…
What are varactor or tuner diodes?
Varactor diode or varicap diode is a semiconductor diode that changes its junction capacitance significantly with respect to applied reverse bias voltage. Many semiconductor PN junction diodes are designed differently to exhibit specific electrical properties. One of such semiconductor diodes is a varactor diode or varicap diode. It is specifically designed to exhibit unique junction…
What are Zener diodes?
A Zener diode is one of the diode types that is often used at any electronics bench. That is because Zener diodes are almost always used in power supply circuits and wave shaping circuits. Zener diodes are just like a regular PN junction diode, athough it is heavily doped. This makes the diode behave differently…
What are signal diodes?
A diode is the simplest electronic device. There are many different types of diodes. Most of are semiconductor diodes, while many diodes have a different construction from the typical PN junctions. All diodes are, by definition, two-terminal one-way voltage-controlled electronic valves. Signal diodes are frequently used in electronic circuits. Often, the term signal diode is…
What are the different types of diodes?
A diode is the most basic semiconductor device. Yet, it has endless applications. In semiconductor electronics, the p-n junction as a basic diode serves as the foundation for all other sophisticated semiconductor components and their design. The design principles that apply to a semiconductor diode are the same applies to transistors and other components. Interestingly,…