A method and device for sterilizing containers in which a plasma treatment is executed through excitation of an electromagnetic oscillation so that the plasma is excited in a vacuum in the vicinity of the container regions to be sterilized. A request from a wireless device to add or modify at least one traffic flow template, TFT, filter, with a requested TFT filter precedence value for a particular bearer associated with the wireless device is received. The spaces result in large polysilicon grains that result in good electrical characteristics.