Cylindrical rotary target magnetrons TOR

Magnetron sputtering is a technology for thin films depositing in a vacuum chamber and in a working gas using cathode sputtering of the target material in crossed electric and magnetic fields.

Electrically conductive materials, such as conductors and semiconductors, are used as targets in medium-frequency DC and AC magnetrons. The use of magnetic materials is limited by the thickness of the target and requires the use of a special magnetic system. For the sputtering of dielectric materials, the RF version of the magnetron is used, which also requires a RF-generator and a matching network for the applied discharge system.

Application:

Cylindrical rotary magnetrons are used in a vacuum equipment of periodic and continuous operation with substrate sizes up to 3 meters or more. Such magnetrons are especially in demand in vacuum equipment for serial and mass production, where there are important such parameters as target lifetime and long-term stability of coating processes.

Main tasks:

–   deposition of functional coatings in the production of displays, the production of energy-saving, electrochromic architectural glasses, solar cells, etc.;

–   deposition of functional coatings: optical, conductive, protective, dielectric, metallization of the surface of plastic and glass products, etc.

Cylindrical rotary target magnetrons are used in Versus-74, Aurora.

Technical data:

Parameters Basic Options
Source type cylindrical rotary
Working pressure 0,2 ÷ 2 Pa
Target material non-magnetic, electrically conductive materials and semiconductors (Si, Ge, etc.) magnetic materials, dielectrics
Target diameter up 145 to 180 mm by request
Target length by request
Magnetic system permanent magnets NdFeB+2xNi
Anode yes magnetised, hidden, etc.
Gas distributor no yes
Target cooling direct
Power supply DC, DC-pulse, MF-AC RF, HiPIMS
Specific maximum power DC/DC-pulse/MF-AC <20 kW/m <50 kW/m
Specific maximum power RF <5 kW/m <15 kW/m
Target utilization >80 % >80 %
Gas flow (depends on pumping) 50…750 cm3/min
Mean time between maintenance (mtbm) 50 h
Cooling water
Cooling water temperature 18…25 °C
Water pressure 2…4 bar
Water flow >0,7 l/min/kW
Working gas Ar, O² and other
Working gas purity 99.99 %

 

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