Semiconductor solid soln - by deposition from melt, for homogeneity and high purity

摘要

Prodn. of solid soln. of semi conductor material of desired compsn. with at least 2 constituents from liquid compsn. comprises a) forming appropriate melt at elevated temp; b) introducing source with at least one of the constituents; c) dipping substrate into liquid melt at a distance from place where source is introduced; and d) maintaining steady temp. difference between source and substrate during crystal formation. Suitable melts have compsn. AB 1-xCx or A 1-xBxC (in which A and in second case B is Gp. 11 and/or 111 element; C and in first case B is Gp. VI or V element).