Patent ID: 7128785

Claim:
Device for depositing crystalline layers on crystalline substrates from the gas phase, which includes a heated growth chamber having a main substrate holder for receiving at least one substrate; one or more heated sources, where a gaseous halide is formed by chemical reaction of a halogen, in particular HCl, which is fed to the source together with a carrier gas, and a metal, for example Ga, In, Al, arranged at the source in the growth chamber, the gaseous halide being conveyed through a gas inlet section to the at least one substrate supported by the main substrate holder in the growth chamber; a hydride feedline for feeding a hydride, in particular NH 3 , AsH 3 or PH 3 , into the growth chamber, characterized in that the reaction chamber, has an axis of symmetry, and a multiplicity of rotationally driven substrate holders are arranged annularly about the axis of symmetry on the main substrate holder, the separately heatable sources being disposed adjacent to the axis of symmetry in the main substrate holder in the growth chamber.