PVD targets comprising copper in ternary mixtures, and methods of forming copper-containing PVD targets

The invention includes a physical vapor deposition target containing copper and at least two additional elements selected from Ag, Al, As, Au, B, Be, Ca, Cd, Co, Cr, Fe, Ga, Ge, Hf, Hg, In, Ir, Li, Mg, Mn, Nb, Ni, Pb, Pd, Pt, Sb, Sc, Si, Sn, Ta, Te, Ti, V, W, Zn and Zr, a total amount of the at leas...

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Bibliographische Detailangaben
1. Verfasser:	DANIELS BRIAN J.,HAUSMAN CHRISTIE J.,HUTCHISON CARA L.,LEE EAL H.,YI WUWEN,STROTHERS SUSAN D.,PINTER MICHAEL R.,THOMAS MICHAEL E.,BAHANAPU A. S
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SEMICONDUCTOR DEVICES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The invention includes a physical vapor deposition target containing copper and at least two additional elements selected from Ag, Al, As, Au, B, Be, Ca, Cd, Co, Cr, Fe, Ga, Ge, Hf, Hg, In, Ir, Li, Mg, Mn, Nb, Ni, Pb, Pd, Pt, Sb, Sc, Si, Sn, Ta, Te, Ti, V, W, Zn and Zr, a total amount of the at least two additional elements being from 100 ppm to 10 atomic %. The invention additionally includes thin films and interconnects which contain the mixture of copper and at least two added elements. The invention also includes forming a copper-containing target. A mixture of copper and two or more elements is formed. The mixture is cast by melting and is subsequently cooled to form a billet which is worked utilizing one or both of equal channel angular extrusion and thermornechanical processing to form a target.