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AssigneeFreiberger Compound Materials GmbH
InventorsRalf Hammer, Andre Kleinwechter, Tilo Flade, Cornelia Kumann, Ralf Gruszynsky
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A method for the division of single crystals, in particular of GaAs, is provided in which a single crystal (1) to be cut into at least two parts and a cutting tool (2, 3; 8, 8a, 8b, 8c) are moved relative to one another in a direction of advancement (V) and wherein the single crystal (1) is oriented in such a way that a specified crystallographic orientation (K) lies in the cutting plane (T), characterised in that an angle (ρ) between the specified crystallographic direction (K) and the direction of advancement (V) is chosen in such a way that forces which act on the cutting tool during cutting in a direction at right angles to the cutting plane compensate one another.
Method for the division of single-crystal materials, wherein a single crystal (1) to be cut into at least two parts and a cutting tool (2, 3:
Device for the division of single crystals having a cutting tool (2, 3;
Device for adjusting a single crystal, wherein the single crystal (1) is of substantially cylindrical construction with a central longitudinal axis (M) and wherein the single crystal has a flat outer face section (4) and a certain crystallographic orientation (K) of the single crystal has a known angle (α) to the normal (N) to the flat outer face section in a plane at right angles to the central longitudinal axis (M), having a limit stop provided on a vertically oriented support (51) with a lower edge (54) which encloses a predetermined angle (γ) with the vertical.
Dependencies are inferred from the claim text.