Patent ID: 6737340
Filing Date: 2004-05-18
Classification: H01L,Y02E,Y02P

Abstract:
A method of manufacturing a contact, comprising:providing a semiconductor having a semiconductor surface; applying a silver layer to at least a portion of the semiconductor surface; applying a dopant to at least a portion of the silver layer, the dopant being capable of doping the semiconductor; heating the semiconductor surface, silver layer and dopant to a first temperature; maintaining the first temperature until at least a portion of the silver layer, a portion of the dopant and a portion of the semiconductor surface form a molten alloy; and cooling the molten alloy to a second temperature that is below the first temperature such that at least a portion of the dopant contained in the molten alloy is incorporated into an epitaxial re-growth region of at least a portion of the semiconductor, the molten alloy forms into a substantially solid first region containing semiconductor atoms and dopant atoms and a substantially solid second region containing silver atoms and dopant atoms, and an ohmic electrical contact is formed between at least a portion of the substantially solid second region and at least a portion of the epitaxial re-growth region.