Abstract: A process produces a single silicon crystal doped with n-type dopant by pulling the single crystal, surrounded by a heat shield, in a reactor chamber, by the CZ method, from a melt. A solid dopant is heated in a dopant crucible of a sublimating unit outside the reactor chamber to a temperature at which a gaseous dopant is formed. The gaseous dopant is supplied through a conduit to a surface of the melt, including by: bringing a control valve, which is between the sublimating unit and the reactor chamber, into a mandated open state as soon as a pressure difference between the pressure in the sublimating unit and the pressure in the reactor chamber has grown to a predetermined value; and controlling the open state of the control valve with a setpoint pressure in the sublimating unit as command variable and the pressure difference as controlled variable of the control.

Abstract: Silicon single crystals having an oxygen concentration of greater than 2×1017 at/cm3, a concentration of pinholes having a diameter of greater than 100 ?m of less than 1.0×10?5 l/cm3, a carbon concentration of less than 5.5×1014 at/cm3, an iron concentration of less than 5.0×109 at/cm3, a COP concentration of fewer than 1000 defects/cm3, a LPIT concentration of fewer than 1 defect/cm2 and a crystal diameter of greater than 200 mm, are produced by the Czochralski method employing a purge gas at specified pressures and flow rates.

Abstract: Silicon single crystals having an oxygen concentration of greater than 2×1017 at/cm3, a concentration of pinholes having a diameter of greater than 100 ?m of less than 1.0×10?5 l/cm3, a carbon concentration of less than 5.5×1014 at/cm3, an iron concentration of less than 5.0×109 at/cm3, a COP concentration of fewer than 1000 defects/cm3, a LPIT concentration of fewer than 1 defect/cm2 and a crystal diameter of greater than 200 mm, are produced by the Czochralski method employing a purge gas at specified pressures and flow rates.

Abstract: Single crystal silicon with <100> orientation is doped with n-type dopant and comprises a starting cone, a cylindrical portion and an end cone, a crystal angle being not less than 20° and not greater than 30° in a middle portion of the starting cone, the length of which is not less than 50% of a length of the starting cone, and edge facets extending from a periphery of the single crystal into the single crystal, the edge facets in the starting cone and in the cylindrical portion of the single crystal in each case having a length which is not more than 700 ?m.

Abstract: Single crystal silicon with <100> orientation is doped with n-type dopant and comprises a starting cone, a cylindrical portion and an end cone, a crystal angle being not less than 20° and not greater than 30° in a middle portion of the starting cone, the length of which is not less than 50% of a length of the starting cone, and edge facets extending from a periphery of the single crystal into the single crystal, the edge facets in the starting cone and in the cylindrical portion of the single crystal in each case having a length which is not more than 700 ?m.

Abstract: The present invention relates to a medicament delivery device. The medicament delivery device may include an operation member configured to act on a medicament container for expelling a medicament. The device may configured to hold the operation member in a pre-tensioned state. The device may include an activation member configured to interact with the operation member to release it from the pre-tensioned state. The device may further comprise feedback. For example, the feedback may include generating an audible and/or tactile and/or visual signal indicating that the medicament has been completely expelled.

Abstract: The present invention relates to a medicament delivery device comprising a drive means configured to act on a medicament container for expelling a medicament; a holding means configured to hold said drive means in a pre-tensioned state; an activation means configured to interact with said holding means for releasing said drive means from the pre-tensioned state; wherein the device further comprises feedback means configured to interact both with said holding means and with said drive means for generating an audible and/or tactile and/or visual signal indicating that the medicament has been completely expelled.