Metal organic chemical vapor deposition
System for deposition of thin layers of metal oxides on a horizontally oriented wafer/sample inside a cylindric steel reactor, with higher growth speed and lower control of layer thickness than a related ALD technique. Metal-organic precursors are delivered through a shower-head placed directly above a rotating heated substrate holder, they decompose in contact with the substrate and organic residuals are extracted from the reactor with high-performance pump system.
Precursors in liquid form are evaporated into the carrier gas flow (N2, Ar) in a bubbler tank or two Controlled Evaporator and Mixer (CEM) lines, up to 3 different precursors plus the process oxygen can be used at the same time.
|substrate temperature range||from room temp. up to 800 °C|
|bubbler temperature control||10–50 °C|
|CEM line heater||up to 70 °C|
|pressure control||1–13 kPa|
|designed materials||TiO2, Fe2O3, BaTiO3, PbZrTiO3, HfO2|