The new environmental protection technology of
pvd coating machine to suppress EMI-continuous magnetron sputtering plastic metallized engineering plastics has better processability than metal, and provides higher design flexibility and productivity for various electronic products, and has become a contemporary The main material of electronic equipment housing. Plastic is an insulator, but electromagnetic interference waves (EMI) can freely penetrate the plastic without shielding. When electronic devices, especially digital circuits, are operating, the generated EMI will interfere with the normal operation of other devices. Therefore, an anti-EMI shielding layer must be added to the plastic casing of the electronic device. At present, the commonly used processes are spraying conductive paint, chemical plating, and vacuum evaporation.
pvd coating machine EMI sputtering coating has the following characteristics: Magnetron sputtering is a high-rate and low substrate temperature rise technology.
1. Almost unlimited substrates to be sputtered (PC, ABS, PC+ABS, ceramics, 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 bonding force of the sputtered film is strong (D3359-93 method test).
4. The sputtered film has high density, few pinholes and high quality factor.
5. The compound film can be directly obtained 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 price
9. The thickness of the metal film processed by vacuum sputtering is only 0.5-2μm, which will not affect the assembly.
10. Vacuum sputtering is a thorough environmental protection process, absolutely environmentally friendly and pollution-free.
