What is the principle and construction principle of Schottky diodes

What is the principle and construction principle of Schottky diodes

With the development of the economy, the electronic component industry is developing rapidly, and components such as secondary transistors and single chip devices are becoming increasingly mature. And some people ask what Schottky diodes are, as well as their principles and structural working principles. Schottky diodes are low-power, high-current, and ultra high-speed semiconductor components in recent years. The principle of its structure still depends on the following content.

Schottky diodes principle and structural working principle

1. The basic principle is: in Schottky diodes, what is Schottky diodes? Schottky diodes principle: On the contact surface of metals (such as lead) and semiconductors (N-type silicon wafers), the established Schottky is used to block the reverse voltage. There is a global difference in the working principle of rectification efficiency between Schottky and PN junctions. Its withstand voltage level is only around 40V. Its specialty is that the switching efficiency is particularly fast, and the reverse recovery time period is particularly short. Therefore, it can be made into switch diodes and low-voltage high current rectifier diodes.

2. Working principle of Schottky diodes structure: It is a multi genus semiconductor component made of precious metal (gold, silver, aluminum, platinum, etc.) A as the positive electrode, and N-type semiconductor B as the negative electrode, using the potential barrier established on the contact surface of the two to have rectification performance. Due to the widespread presence of many electronic devices in N-type semiconductors, with only a small number of free electrons in precious metals, electronic devices diffuse from high content B to low content A. Obviously, if there are no holes in metal A, there will be no diffusion of holes from A to B.

Currently, many fields are applying Schottky diodes, and Schottky diodes are also an indispensable part of electronic components. Schottky diodes not only improves the Comprehensive National Power, but also promotes the economic field and improves the information field, improving people's living standards.