Ohmics contacts of germanium and palladium alloy from group III-V n-type semiconductors

摘要

A metallization scheme for providing an ohmic contact to n- type III-V semiconductors is described. A metallurgical combination including germanium and palladium is formed on the semiconductor surface either in the form of an alloy or discrete layers. The structure is then heated so that the metallic and semiconductor components interdiffuse to establish the ohmic contact without melting of the metal. One advantage of such a solid state process is the high degree of dimensional control of the contact which is attainable.