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Relevant knowledge about vacuum coating machine Magnetron sputtering coating system

2023-05-22

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vacuum coating machine Magnetron sputtering coating is a coating process, which is well-known by many people and widely used in the market. When applied to the optical industry, we generally call it optical Magnetron sputtering coating equipment, when applied to the decoration industry, we generally call it decorative vacuum coating machine, when applied to the winding industry, we generally call it winding vacuum coating machine. Magnetron sputtering coating technology has been applied in almost every industry, and has also been recognized by many manufacturers.


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1. Principle of true coating equipment Magnetron sputtering:
Vacuum deposition equipment Magnetron sputtering is a common physical deposition method. Magnetron sputtering is to use low-pressure gas discharge phenomenon in the vacuum chamber to make ions in the plasma state hit the target surface, and use the annular magnetic field to control the glow discharge, so that the splashed particles are deposited on the substrate. Magnetron sputtering can easily deposit thin films of high melting point materials, and even thin films can be deposited on a large area. 

2. Magnetron sputtering process flow of vacuum coating machine:
In the process of coating, the selection of process has an important impact on the performance of the film. According to the principle of Magnetron sputtering technology and the actual application of equipment, the required thickness of the film is nm~ μ M order of magnitude, film thickness<550nm, if there is interference with light, it belongs to the category of thin films and is commonly referred to as optical thin film technology.

3. Features of Magnetron sputtering coating of vacuum coating machine: high sputtering rate, high deposition rate. The target material of the sputtering source has a strong DIY selection combination.

The Magnetron sputtering cathode source of vacuum coating machine is an ideal controllable source. The deposited film thickness has a good linear correlation with the power or discharge current of the sputtering source, so it has good controllability and can better achieve the consistency and repeatability of batch production products. The sputtering source can be ideally placed in the vacuum chamber to work stably for a long time to obtain pure film, improve the adhesion of vacuum deposition and ensure the film quality.

4. vacuum coating machine Magnetron sputtering high vacuum acquisition:
Vacuum is a spatial state in which no matter exists, and it is a physical phenomenon. In "vacuum", sound cannot be transmitted due to the absence of a medium, but the transmission of electromagnetic waves is not affected by vacuum. In fact, in vacuum technology, vacuum is for gases. Generally speaking, high vacuum is obtained through an oil diffusion pump, which can obtain higher vacuum than a mechanical pump.