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The application prospect of plasma technology

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Published on:

28 Sep,2020

The application prospect of plasma technology:

Plasma is the fourth state of matter different from solid, liquid and gas. Matter is made up of molecules, which are made up of atoms, which are made up of positively charged nuclei and negatively charged electrons. When applied at a high energy, the electrons leave the nucleus, and the matter becomes a plasma of positively charged nuclei and negatively charged electrons.

Seemingly "mysterious" plasma is actually not rare, the most common plasma is high temperature ionized gas, such as arc, neon lights and fluorescent light gas, as well as the sun, lightning, aurora, and so on. Plasma has been widely used in mobile phone industry, semiconductor industry, new energy industry, polymer film, material anti-corrosion, metallurgy, coal chemical industry, industrial three waste treatment, medical industry, LCD display screen assembly, aerospace and other fields, with a potential market value of nearly 200 billion US dollars per year.

The interaction between charged particles in plasma is very active, and the surface modification of various materials can be realized by using this characteristic.

The application of plasma technology in surface technology is mainly used in the following aspects.

1. Plasma surface treatment:

In order to improve the performance of cutting tools and moulds, the metal surface can be permeated with nitrogen, carbon, boron or carbon nitrogen by plasma. The characteristic of this method is that instead of adding a covering layer to the surface, the material structure and properties of the matrix surface are changed. In the process of processing, the workpiece temperature is relatively low, do not make the workpiece deformation, which is very important for precision parts. This method can be applied to a variety of metal substrates, including glow discharge nitriding, nitrocarburizing and boriding.

2. Plasma for material surface modification:

Change wettability (also known as wettability). The surface wettability of some organic compounds has great influence on the adhesion of pigments, inks and binders, as well as on the surface flashier voltage and surface leakage current and other electrical properties. The measure of wettability is called the contact Angle. Different treatments of materials have different effects on the contact of antennae.

3. Application of plasma in the electronics industry:

In the past, the production process of LSI chip core was replaced by chemical method and plasma method, which not only reduced the temperature in the process, but also changed the chemical wet method of gelatinizing, developing, etching and removing gelatinizing into plasma dry method, making the process simpler, facilitating the realization of automation and improving the yield of finished products. The resolution and fidelity of the chip core processed by the plasma method are both high, which is beneficial to the improvement of integration and reliability. Plasma-deposited films can be used to protect electronic components. Plasma-deposited conductive films can be used to protect electronic circuits and equipment from damage caused by static charge accumulation. Plasma-deposited films can also be used to manufacture capacitor elements.

In addition to the above part of the application of plasma technology, plasma technology in the mobile phone industry, semiconductor industry, new energy industry, polymer film, anti-corrosion materials, metallurgy, industrial "three wastes" treatment and health care industry, LCD assembly, aerospace and other fields has wide application, the prospects of the vast, impressive!

The application prospect of plasma technology

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