PROCESS FOR GROWING A MONOCRYSTAL FROM A MULTIPLE-CONSTITUENT SOLID SOLUTION AND A DEVICE FOR CARRYING OUT THE SAME

摘要

In a process for growing a monocrystal from a multi-constituent solid solution, said monocrystal is grown from at least two parent substances which are accommodated separately. These substances are heated to a temperature above the growth temperature of the monocrystal. The respective vapours produced by the heating are fed in separate streams to the growth region of the monocrystal. The partial pressure of at least one of the vapours is altered in inverse proportion to the concentration of that particular substance in the growing monocrystal. A suitable device comprises a chamber (1) divided into compartments for the raw materials (16, 17). At least one of these compartments is provided with a system (15, 18, 19) for regulating the partial pressure of the raw material vapour.