Abstract: An electromechanical connection device, which is designed for the releasable connection of a plurality of wire conductors serving to supply power to the directional control valve. It contains a plurality of connection structures, which respectively have a connection channel, which is delimited laterally in a clamping region by a moveable clamping element. A wire conductor inserted into the connection channel is electrically conductively clamped by the clamping element subjected to a spring force. All clamping elements are collectively associated with a release element, which can be driven to a release movement by introducing a manually generated release force, during which it acts on the clamping elements, such that each clamped wire conductor can be released for removal from the associated connection channel.

Abstract: In the frame of manufacturing a photovoltaic cell a layer (3) of silicon compound is deposited on a structure (1). The yet uncovered surface (3a) is treated in a predetermined oxygen (O2) containing atmosphere which additionally contains a dopant (D). Thereby, the silicon compound layer is oxidized and doped in a thin surface area (5).

Abstract: In the frame of manufacturing a photovoltaic cell a layer (3) of silicon compound is deposited on a structure (1). The yet uncovered surface (3a) is treated in a predetermined oxygen (O2) containing atmosphere which additionally contains a dopant (D). Thereby, the silicon compound layer is oxidized and doped in a thin surface area (5).