A via forming method that includes forming via-holes in a substrate is provided. Subsequently, code words of the second set are written into the data stream pursuant to a predetermined assignment rule, wherein each code word of the second set is assigned to a different segment. Once the predetermined section of the data window is identified the logic block forwards the data associated with the predetermined section to an output pin, with the proviso that no memory element is present, and with the proviso that no feedback line is present. The reductant distributor is configured to distribute spatially an undispensed portion of a reductant into the reductant tank from the return passageway. The alternate router provides a message to the other routers in the Wide Area Network that informs of the router failure. In order to improve the quality of the laminated layer structure with respect to the surface roughness and dislocation density, the composition parameter at the interface between the layer in the stack with the gradient composition and the subsequent layer in the stack is chosen to be smaller than the composition parameter of the layer with a gradient composition.