The invention provides methods for the production of synthesis gas. The compressive dielectric layer is part of a redistribution structure of the die package and its compressive stress reduces or eliminates bowing of the die package. Responsive to the handover, an indication of availability of MDT measurement logged data may be provided to the second PLMN. The polymers may be cross-linked by means of a suitable cross-linking agent. A proximity detector is preferably provided that actuates a powerfold mechanism when the proximity detector detects an object so as to move the movable portion from the normal viewing position to the folded position.