Patent ID: 6703295
Filing Date: 2004-03-09
Classification: H01L,Y02E,Y02P

Abstract:
A method of manufacturing a contact, comprising:providing a semiconductor having a surface; providing a plurality of silver granules; covering at least a portion of the plurality of the silver granules with a layer of dopant, the dopant being capable of doping the semiconductor; forming a paste from at least a portion of the plurality of silver granules and dopant; applying the paste to at least a portion of the surface; heating the paste and the semiconductor to a first temperature; maintaining the first temperature until at least a portion of the paste and a portion of the semiconductor form a molten alloy; cooling the 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 expitaxial re-growth region of the semiconductor, and the molten alloy becomes a solid solderable contact with ohmic electrical contact to at least a portion of the re-growth region.