A waveguide lens includes a substrate, a planar waveguide formed on the substrate and configured to couple with a laser light source that emits a laser beam into the planar waveguide along an optical axis, and a media grating film including two media gratings with a gap intervening therebwteen. The heat sink includes spaced laminas made of a thermally conductive material. A conveyer moves the elongated window component along the path of travel relative to the nozzle at a controlled speed. By using a ground plane and signal lines having substantially equal lengths, impedance caused by electromagnetic and electrostatic coupling is significantly reduced, and impedance from signal line length is balanced such that the loads on each of the signal lines, as viewed by the semiconductor die, are substantially equal. The noise inserted into the serial test data, which may be configured to operate at a higher data rate than the parallel test data, may allow a device to be tested with higher data-rate test data.