Patent ID: 6222863
Filing Date: 2001-04-24
Classification: G02F,H01S

Abstract:
An ohmic contact comprising:a metal bonding layer for receiving an electrical charge;a semiconductor layer formed from a compound semiconductor comprising a first weakly-electronegative element and a first strongly-electronegative element;a reacted multi-layer disposed between the metal bonding layer and the semiconductor layer, the reacted multi-layer comprising:a first substantially thermodynamically-stable layer adjacent to the semiconductor layer, said first layer comprising a material formed from a reaction of said first weakly-electronegative element and a first quantity of a second strongly-electronegative element; anda second substantially thermodynamically-stable layer adjacent to the first layer, said second layer comprising a material formed from a reaction of said first strongly-electronegative element and a second quantity of a second weakly-electronegative element.