The new environmentally friendly process of
pvd coating machine to suppress EMI - continuous magnetron sputtering plastic metallization engineering plastics, with better processability than metals, 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 unshielded plastics. When electronic devices, especially digital circuits, are operating, the EMI generated 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 equipment. At present, the commonly used processes are spraying conductive paint, chemical plating, and vacuum evaporation.
The EMI sputtering coating of pvd coating machine has the following characteristics: Magnetron sputtering is a film forming technology with high speed and low substrate temperature rise.
1. There are almost no restrictions on the 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 (tested by D3359-93 method).
4. The 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 the 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 definitely not affect the assembly.
10. Vacuum sputtering is a thorough environmental protection process, absolutely environmentally friendly and pollution-free.
