Back-end metallisation process

The invention provides for a back-end metallisation process in which a recess is filled with copper and which includes the step of forming a plating base on the surfaces of the recess for the subsequent galvanic deposition of the said copper, and wherein subsequent to the formation of the plating ba...

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Bibliographische Detailangaben
1. Verfasser:	E.A. MEULENKAMP,M.J. SCHROEVERS
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY PRINTED CIRCUITS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	The invention provides for a back-end metallisation process in which a recess is filled with copper and which includes the step of forming a plating base on the surfaces of the recess for the subsequent galvanic deposition of the said copper, and wherein subsequent to the formation of the plating base, but prior to the galvanic deposition of the copper, a modifying agent is introduced to the recess and which serves to absorb in the surface regions not covered by the plating base and to thereby modify the surface to promote copper growth thereon so as to effectively repair the initial plating base before the copper plating fill commences.