A switch node includes arbiter logic configured to gather global information regarding switching requests within the switch node and to control switching of one or more packets through the switch node. The system preferably includes a first laser that perforates the workpieces to produce an opening spaced from the edges; and the combination preferably includes a second laser and electrode for cooperatively melting fusible material into the opening. A p-i-n structure may include a bi-layer p-type layer disposed above a substrate, the bi-layer p-type layer having a microcrystalline p-type layer and an amorphous p-type layer disposed atop the microcrystalline p-type layer; an amorphous i-type layer disposed atop the bi-layer p-type layer; and an n-type layer disposed atop the i-type layer. The resin compositions of the invention may be used for any purpose, but are particularly suited to be utilized in the manufacture of laminates for printed circuit boards and non-electrical structural applications.