Development of large diameter InP single crystal

A large quantity of high purity InP crystal material has been produced by the phosphorus in-situ injection synthesis and liquid encapsulated Czochralski (LEC) growth process. The in-situ process exhibits several advantages over the two-step process of compounding and growing in separate furnaces. About 2500-5000g stoichiometric poly InP is synthesized reproducibly by P-injection method in the high-pressure puller. Twin-f ree InP single crystals with diameter of 60-100 mm can be pulled after the synthesis.