Abstract: The invention provides polycrystalline silicon having concentrations of dopants of 1-10 ppta of boron, 1-20 ppta of phosphorus, 1-10 ppta of arsenic, 0.01-1 ppta of aluminum, and having a charge carrier lifetime of at least 2000 and at most 4500 ?s.

Abstract: The invention relates to an apparatus for the conduct of chemical reactions, comprising: a reaction slider in which are formed a multiplicity of through holes serving as reaction chambers, a selector slider located on the upper surface of the reaction slider and having at least one continuous control orifice, wherein the selector slider is movable relative to the reaction slider in such a way that its control orifice may be brought into alignment with one of the reaction chambers of the reaction slider, so that a through connection to supply the reaction chamber with a predetermined reagent may be made, and a chemical slider, located beneath the reaction slider and provided with passages to supply chemicals to the individual reaction chambers of the reaction slider. The invention is distinguished on the one hand by a device to apply a predetermined force to the sliders and on the other hand by a valve assembly by means of which chemicals may be supplied to the chemical slider in premixed form.

Abstract: The invention relates to a device for automatic implementation of chemical or biological methods in sample vessels, more particularly for sequencing and amplifying nucleic acid sequences, including a pipette apparatus and a thermocycler, the pipette apparatus comprising a pipette arm for pipetting sample substances and/or chemicals. The invention is characterized in that the pipette apparatus and the thermocycler are configured as spatially separated workstations and that a handling arm for moving at least one sample vessel containing sample substances or chemicals and configured separate from the workstations is provided.