Abstract: Method for cutting crystal boules using diamond wire, wherein this boule is driven about a main axis, a cutting wire is held taut and driven through a temporary drum immobilising each boule in position with respect to the main axis throughout the entire cutting operation, this temporary drum being made by overmoulding a coating material on at least one boule bonded onto a sacrificial core, the cutting being followed by the slicing of cut rings from which are detached, particularly using heat, crystalline plates with parallel faces.

Abstract: Method for cutting crystal boules using diamond wire, wherein this boule is driven about a main axis, a cutting wire is held taut and driven through a temporary drum immobilising each boule in position with respect to the main axis throughout the entire cutting operation, this temporary drum being made by overmoulding a coating material on at least one boule bonded onto a sacrificial core, the cutting being followed by the slicing of cut rings from which are detached, particularly using heat, crystalline plates with parallel faces.

Abstract: A device for holding a substrate block to be sawed and for flushing the intermediate spaces formed by sawing the substrate block. It comprises two regions arranged parallel to the device longitudinal axis and above one another, the upper region being configured as an adapter region by means of which the device can be connected to a machine instrument, and the lower region being formed as a holding region which comprises a circumferentially closed or closable channel system which can be supplied with flushing liquid by means of closable supply openings and the bottom of which is opened in a slot-like fashion during the sawing of the substrate block so as to provide passage openings for the flushing liquid. A method for flushing intermediate spaces formed by sawing a substrate block using the above device.

Abstract: The invention relates to a separating, deflecting and transporting of a disc like substrate (3) such as e.g. a solar wafer. The apparatus (1) for the separating, deflecting and transporting of disc shaped substrates (3) which are sequentially arranged standing one after another in feed direction in the form of a substrate stack (5) within a liquid, comprises a vertical belt conveyor (9) with at least two conveyor belts (11, 11?), whose conveying span (10) is arranged at one front side (12) of the stack (5) parallel to the front side (12), wherein the belt conveyor (9) has a vacuum device (16) by means of which the respective foremost substrate (3) of the stack (5) can be sucked against at least a first conveyor belt (11), and wherein the at least two conveyor belts (11, 11?) of the vertical belt conveyor (9) are arranged coplanar to each other in the adjoining region.