Vacuum coating machine optical coating and related knowledge

The new environmental protection technology of vacuum coating machine to suppress EMI——continuous magnetron sputtering plastic metallized engineering plastic has better processability than metal, which provides higher design flexibility and productivity for various electronic products, which has become contemporary The main material of electronic equipment casing. Plastic is an insulator, but electromagnetic interference waves (EMI) can freely penetrate plastic without a shielding layer. When electronic devices, especially digital circuits, are operating, the EMI generated will interfere with the normal operation of other devices. Therefore, it is necessary to add an EMI-resistant shielding layer to the plastic casing of the electronic device. Currently commonly used processes are spraying conductive paint, chemical plating, and vacuum evaporation.

Vacuum coating equipment EMI sputtering coating has the following characteristics: magnetron sputtering is a high-speed, low-substrate temperature rise film-forming technology.

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1. There are almost no restrictions on the substrate being sputtered (PC, ABS, PC + ABS, ceramic, glass, etc.)

2. The film quality is dense and uniform, and the film thickness is easy to control.

3. The initial kinetic energy of the sputtered particles is large, and the binding force of the sputtered film is strong (tested by D3359-93 method).

4. Sputtered film has high density, few pinholes and high quality factor.

5. The compound film can be obtained directly in the reaction atmosphere.

6. The temperature rise of the substrate is low during sputtering.

7. Under the same process conditions and sputtering power, the sputtering rate is almost unchanged, so time can be used to estimate the deposited film thickness.

8. Low prices

9. The thickness of the metal film processed by vacuum sputtering is only 0.5 ～ 2μm, which will definitely not affect the assembly.

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10. Vacuum sputtering is a completely environmentally friendly process, absolutely environmentally friendly and pollution-free.

Zunhua Baorui Titanium Magnetron Sputtering (EMI) vacuum coating equipment has high conductivity and high electromagnetic shielding efficiency, and is a special coating equipment for magnetron sputtering. , Computer (notebook), portable electronics, consumer electronics, network hardware (servers, etc.), medical equipment, home electronics and aerospace and defense electronic equipment such as EMI shielding.