METAL PATTERNING FOR ELECTRICALLY CONDUCTIVE STRUCTURES BASED ON ALLOY FORMATION

Layered metal structures are patterned to form a surface with some locations having an alloy along the top surface at some locations and the original top metal layer at other locations along the surface. The alloy and original top metal layer can be selected to have differential etching properties s...

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Bibliographische Detailangaben
Hauptverfasser:	PAKALA NEERAJ, SANDERS WILLIAM A, SRINIVASAN UMA, HIESLMAIR HENRY
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SEMICONDUCTOR DEVICES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Layered metal structures are patterned to form a surface with some locations having an alloy along the top surface at some locations and the original top metal layer at other locations along the surface. The alloy and original top metal layer can be selected to have differential etching properties such that the pattern of the alloy or original metal can be selectively etched to form a patterned metal interconnect. In general, the patterning is performed by localized heating that drives formation of the alloy at the heated locations. The metal patterning can be useful for solar cell applications as well as for electronics applications, such as display applications.