An injection-molding mold die includes a cylinder and a diameter-enlarging member. A reticle preform is provided including a transparent substrate, a metal layer, and a layer of a photoresist material. A spring is biased to the operation member and stopped by an end member which is connected to a positioning member mounted to the operation member. The dual-band monopole antenna communicates first radio frequency signals in a first RF band and second RF signals in a second RF band. As such, jobs originating from different partitions are able to simultaneously execute on the device and, therefore, fully utilize each of the device’s hardware threads.