Schottky Diode
Why can Schottky diodes be switched off much faster than the p-n junction diode?
Due to the metal-silicon junction charges do not get stored, due to this there is no reverse recovery time and switching is faster.
What is meant by reverse-recovery time?
If a diode is initially driven in forward bias and the polarity suddenly switches to reverse bias, the diode will still remain conducting for some time. The time required for conduction to settle into the reverse bias state is the diode’s reverse recovery time.
What are the disadvantages of Schottky Diode?
These diodes can’t withstand much higher voltage without break down thereby causing excessive heating. They are even more costly.
What are the other types of diodes?
Some other types of diodes are P-N Junction Diode, Small Signal Diode, Rectifier Diode, Light Emitting Diode (LED), Photodiode, Laser Diode, Tunnel Diode, Zener Diode.
Schottky Diode
The Schottky diode is popularly known as a hot-carrier diode, low-voltage diode, or Schottky barrier diode. It is a type of diode formed by the junction of a semiconductor with a metal. We know that in a PN junction diode, p-type and n-type semiconductors are joined collectively to form a PN junction. To the contrary, a Schottky diode replaces the p-type semiconductor with metals like aluminium.
Schottky diode has multiple characteristics which makes it a better choice over other diodes in the electronic industry. It displays characteristics like fast switching action and a low forward voltage drop. The symbolic representation of this diode, the construction of this diode, the energy band of the diode and what the V-I characteristic graph of this diode looks like.
Table of Content
- What is Schottky Diode?
- Schottky Diode Construction
- Working Of Schottky Diode
- V-I Characteristic of Schottky Diode
- Schottky Barrier
- Schottky Clamped Transistor
- Schottky Diodes in Logic Gates
- Characteristics of Schottky Diode
- Difference between Schottky and P-N junction Diode
- Applications of Schottky Diode
- Advantages of Schottky Diode
- Disadvantages of Schottky Diode
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