Semiconductor components, as the name implies, are mainly made of semiconductors. Electronic technology is changing with each passing day, and new semiconductor components are emerging one after another. Semiconductor components have always been at the core of electronic components. Today, let us take a look at these basic semiconductor components.

Diode

The diode invented by British scientist Fleming at the end of the 19th century and the beginning of the 20th century was also the first to apply semiconductors to electronic components. Times change, in today's technologically advanced, diodes are already common, especially in various electronic circuits, using diodes and resistors, capacitors, inductors and other components to reasonably connect to form circuits with different functions, which can achieve Various functions such as AC rectification, modulation signal detection, amplitude limiting and clamping, and voltage regulation of power supply.

Bipolar transistor

Semiconductor triodes are composed of bipolar transistors and field effect transistors. However, the invention and application of bipolar transistors are much earlier than field effect transistors, so it is customary to refer to bipolar transistors as triodes or transistors for short. The bipolar transistor is composed of two back-to-back PN structures. When it operates, it will carry two types of carriers, electrons and holes, and they both participate in conduction, so it is called "bipolar", which is used to distinguish One of the important bases of a carrier-conducting field effect transistor.

Insulated Gate Field Effect Transistor

We've just briefly mentioned field effect transistors, now let's look at them in more detail. A field effect transistor is a semiconductor device that uses the electric field strength generated by an applied voltage to control its conductivity. According to its structure, it can be divided into two categories: junction field effect transistor and insulated gate field effect transistor. Insulated gate field effect transistors are divided into two types: N-channel and P-channel according to their conductivity types, and each type is further divided into enhancement type and depletion type.

Semiconductor optoelectronic devices

Light and TV are two different energies, and the mutual conversion is also reversible. Semiconductor devices can be used as media for light and electrical energy conversion. The photons in the irradiated light can destroy the covalent bonds of the semiconductor crystal and release electrons under the action of illumination; and the energy emitted by the recombination of electrons and holes can also be radiated in the form of light of a certain wavelength under the action of an electric field. Semiconductor electronic devices for light, electrical energy or signal conversion use different materials and processes. The structures manufactured by us are called semiconductor optoelectronic devices.