What is the principle of Schottky diode and its construction and working principle

What is the principle of Schottky diode and its construction and working principle

With the development of the economy, the electronic components industry has developed rapidly, and the development of components such as diodes and stand-alone chips has become more and more mature. And someone asked what a Schottky diode is, and what is its principle and how its structure works. Schottky diodes are low-power, high-current, ultra-high-speed semiconductor components in recent years. The principle of its structure is still as follows.

Schottky diode principle and structure working principle

1. The basic principle is: on the contact surface of Schottky diode, what is Schottky diode, Schottky diode principle metal (such as lead) and semiconductor (N-type silicon wafer), use the established Schottky to Block reverse voltage. There is a global difference in the rectification efficiency working principle of Schottky and PN junction. Its withstand voltage level is only around 40V. Its specialties are: the switching efficiency is particularly fast: the reverse recovery period is particularly short. Therefore, switching diodes and low-voltage high-current rectifying diodes can be fabricated.

2. The working principle of Schottky diode structure: the precious metal (gold, silver, aluminum, platinum, etc.) A is used as the positive electrode, and the N-type semiconductor B is used as the negative electrode. A multi-genus-semiconductor component. Because there are many electronic devices in N-type semiconductors, and there are only a small amount of free electrons in noble metals, the electronic devices diffuse from B with high content to A with low content. Obviously, there are no holes in metal A, and there will be no diffusion of holes from A to B.

At present, Schottky diode are being used in many fields at this stage, and Schottky diode are also an indispensable part of electronic components. Schottky diode not only enhance the overall national strength, but also promote the economic field and further improve the information field, improving people's living standards.