Patent ID: 6342405
Filing Date: 2002-01-29
Classification: C23C,C30B,H01L,H01S

Abstract:
A method of incorporating larger concentrations of N relative to As at group V lattice sites in a III-V compound semiconductor crystal without experiencing defects due to lattice mismatch comprising the steps of:providing a crystalline substrate; epitaxially depositing on the substrate at least one set of a plurality of alternating groups of one or more layers comprising a first group having Group V atoms of all or a majority of nitrogen atoms at Group V lattice sites with at least one Group III element at Group III lattice sites and a second group having Group V atoms of all or a majority of arsenic atoms at Group V lattice sites with at least one Group III element at Group III lattice sites; and depositing the layers in the first and second groups as monolayers so that the formation of defects due to lattice mismatch is avoided.