A process produces a welded seamless PIPE having good yield strength and excellent corrosion andor erosion resistance. The DRAM dies on the wafer are IEE1149. The top coupler is attracted to the at least one electromagnet. The voltage transformer unit is mounted on a circuit carrier which is arranged in the casing base element in such a way that a defined first region of the circuit carrier is received in a casting space filled with an electrically insulating casting compound.