摘要:
A method and apparatus for monitoring and controlling reactive sputter deposition are provided. They are particularly useful for high-rate deposition of dielectric stoichiometric compounds (e.g., metal-oxides, metal-nitrides, metal-oxynitrides, etc.) on various substrates using high power magnetron sputtering a metal target, including high power impulse magnetron sputtering with target power densities of up to several kWcm -2 in short target (cathode) voltage pulses (typically 40 µs to 200 µs). For a given nominal target power level, target material and source gases, a pulsed flow rate of the reactive gas into a vacuum chamber is controlled at a constant target voltage, kept by a power supply, to promote sputter deposition of the dielectric stoichiometric films in a transition region between a "metallic mode" and a "covered (poisoned) mode".
摘要:
A method and apparatus for monitoring and controlling reactive sputter deposition are provided. They are particularly useful for high-rate deposition of dielectric stoichiometric compounds (e.g., metal-oxides, metal-nitrides, metal-oxynitrides, etc.) on various substrates using high power magnetron sputtering a metal target, including high power impulse magnetron sputtering with target power densities of up to several kWcm -2 in short target (cathode) voltage pulses (typically 40 µs to 200 µs). For a given nominal target power level, target material and source gases, a pulsed flow rate of the reactive gas into a vacuum chamber is controlled at a constant target voltage, kept by a power supply, to promote sputter deposition of the dielectric stoichiometric films in a transition region between a "metallic mode" and a "covered (poisoned) mode".
摘要:
A method of generating a highly ionized plasma in a plasma chamber (2), comprises the steps of: a. providing a neutral gas to be ionized in the plasma chamber (2) at pressure below 50 Pa; b. supplying at least one high energy high power electrical pulse with power equal or larger than 100 kW and energy equal or larger than 10 J, to at least one magnetron cathode in connection with a target in the plasma chamber (2) c. producing a highly ionized plasma from the neutral gas in a plasma volume such that the plasma volume cross section increases during a current rise period, d. sputtering atoms from the target with the highly ionized plasma, e. ionizing at least part of the sputtered atoms.