PROCEDIMENTO PER PREPARARE BACCHET TE MONOCRISTALLINE DI MATERIALE SEMICONDUTTORE CON ORIENTAMENTO III PRESENTANTI UNA RESISTENZA SPECI FICA DECRESCENTE VERSO IL CENTRO DELLA BACCHETTA

摘要

A process for preparing oriented semiconductor monocrystalline rods with a specific resistance which drops towards the center of the rod. The process utilizes rapid non-crucible moving zone melting of a preformed vertically positioned semiconductor rod using an inductive heating device which annularly surrounds the rod.