Specific Process Knowledge/Thin film deposition/Deposition of Hafnium Oxide

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Deposition of Hafnium Oxide

Thin films of hafnium oxide can only be deposited in the ALD at the moment. More information about the process can be found here.

Only method at the moment for the deposition of hafnium oxide

	ALD
Generel description	Atomic Layer Deposition
Stoichiometry	HfO2
Film Thickness	0nm - 50nm
Deposition rate	0.0827 nm/cycle on a flat sample 0.954-0.122 nm/cycle on a high aspect ratio structures
Step coverage	Very good
Process Temperature	250oC
Substrate size	Several small samples 1-5 50 mm wafers 1-5 100 mm wafers 1-5 150 mm wafer
Allowed materials	Silicon Silicon oxide, silicon nitride Quartz/fused silica Al, Al2O3 Ti, TiO2 Other metals (use dedicated carrier wafer) III-V materials (use dedicated carrier wafer) Polymers (depending on the melting point/deposition temperature, use carrier wafer)