Method for bonding a ceramic to a metal with a copper-containing shim

A method is provided for the bonding of ceramics to metals for the production of semiconductor packages. The method includes forming a copper-copper oxide eutectic on a substantially planar copper shim. The shim and its copper-copper oxide eutectic are placed in contact with a ceramic layer and meta...

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Bibliographische Detailangaben
Hauptverfasser:	KARKER, JEFFREY A, MAX, LEE BENAT, DICKSON, JOSEPH F
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	A method is provided for the bonding of ceramics to metals for the production of semiconductor packages. The method includes forming a copper-copper oxide eutectic on a substantially planar copper shim. The shim and its copper-copper oxide eutectic are placed in contact with a ceramic layer and metal layer. The assembly, so formed, is then heated to a temperature at least equal to the melting point of the eutectic and no greater than the melting temperature of copper. Upon cooling of the eutectic, a bond forms bond the ceramic layer to the metal layer.