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Ultra High Vacuum Chemical Vapor Deposition

labideal March 20, 2020 Coating Equipment

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The cold wall, ultra high vacuum chemical vapor deposition chamber is used mainly for nanowire growth. The available growth and doping precursors are SiH₄, GeH₄, PH₃, and B₂H₆. A resistive graphite substrate heater encased in pyrolytic boron-nitride allows for growth temperatures up to 700 °C. The tool can operate in dual mode: ultra-high vacuum, used for epi- growth, and low pressure (up to 10 Torr), used for nanowire growth.