The present invention relates to a novel matrix-valued transform framework to process digital signals. The assembly includes a housing and a filter element located in the housing and held in place by a spring. The drive includes an electric traction motor, at least one variable-speed mechanical gear unit, and at least one brake. A third mechanism generates control signals. A plurality of second vias is formed through the insulating layer and encapsulant in the same direction as the first vias while the semiconductor die is mounted to the carrier.