METHOD FOR FORMING A LAYER ON A SUBSTRATE AT LOW TEMPERATURES

A method for forming an oxide layer on a substrate is described, wherein a plasma is generated adjacent to at least one surface of the substrate by means of microwaves from a gas containing oxygen, wherein the microwaves are coupled into the gas by a magnetron via at least one microwave rod, which i...

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Bibliographische Detailangaben
Hauptverfasser:	LERCH, Wilfried, KEGEL, Wilhelm, NIESS, Jürgen, GSCHWANDTNER, Alexander
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A method for forming an oxide layer on a substrate is described, wherein a plasma is generated adjacent to at least one surface of the substrate by means of microwaves from a gas containing oxygen, wherein the microwaves are coupled into the gas by a magnetron via at least one microwave rod, which is arranged opposite to the substrate and comprises an outer conductor and an inner conductor. During the formation of the oxide layer, the mean microwave power density is set to P=0.8-10 W/cm2, the plasma duration is set to t=0.1 to 600 s, the pressure is set to p=2.67-266.64 Pa (20 to 2000 mTorr) and a distance between substrate surface and microwave rod is set to d=5-120 mm. The above and potentially further process conditions are matched to each other such that the substrate is held at a temperature below 200° C. and an oxide growth is induced on the surface of the substrate facing the plasma.