METHOD FOR FORMING ALUMINUM FILM

Provided is a technique of forming an aluminum film that has high flatness and less cavities. Step S11 is forming a first film having a thickness that is equal to or greater than 0.1 μm and less than 1 μm, by sputtering a material onto a substrate. Step S12 is reflowing the first film by heating the...

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Bibliographische Detailangaben
1. Verfasser:	TOKURA, Yuji
Format:	Patent
Sprache:	eng
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:	Provided is a technique of forming an aluminum film that has high flatness and less cavities. Step S11 is forming a first film having a thickness that is equal to or greater than 0.1 μm and less than 1 μm, by sputtering a material onto a substrate. Step S12 is reflowing the first film by heating the first film. Step S13 is forming a second film by sputtering the material onto the first film that has been reflowed. Step S14 is reflowing the second film by heating the second film. Step S15 is forming a third film by sputtering the material onto the second film that has been reflowed. Step S16 is reflowing the third film by heating the third film.