Ion Beam Sputtering
Ion Beam
Use external ionization source.
- Single Ion Beam
- Dual Ion Beam
- Type of coating materials : almost any e.g. Ni, Mo, Ti, W, Ai2O3, SiO2
- Ion beam kinetic engergy : 100 to 10,000 eV
- Deposition Pressure : 10^-5 to 10^-2 Pa (10^-7 to 10^-4 torr)
- Deposition temperature: 100 to 500 C
- Coating thickness range: 0.02 to 10 E-6 m
- Deposition rate: 0.02 to 0.5 E-6 m/min
- Relative adhesion : good to excellent
Advantages:
- Unique coating properties, very high-kinetic energy ion beam may leads to excellent adhesion and high density
- Independent control over kinetic energy and current density of ions
- Directionally control of ion beams
- Low deposition pressure
- High deposition rates
- No gas atom incorporation
- No substrate heating
Disadvantages
- Needs separate ion source
- Substrate size limited because of small ion beam size(~100mm diameter)