Patent ID: 11965266
Assignee: FREIBERGER COMPOUND MATERIALS GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC B  C

Claim 13:
14. An AIII-BV-single-crystal or wafer obtained by separation therefrom comprising an average density of dislocations in the lattice of the crystal determined as an average edge pit density (EPDav) within the cross-sectional area of the single-crystal perpendicular to its central axis (M) in amount of 1000 cm−2 or less, wherein a charge carrier concentration including lattice hardening dopants, in particular boron, silicon, zinc, sulphur, indium, each alone or in combination, amounts to 7×1016 Atoms/cm3 or less, preferably 1×1016 atoms/cm3 or less.