A gradient compression article with therapeutic and aesthetic properties broadly includes a limb-receiving section extending continuously between a distal end and an open proximal end thereof. Stitching yarns are introduced in stitching relation through the substrate layers. In consequence, the semiconductor device 220 is fixed and mounted on the resin layer 212 without being warped or bent. Cells that pass verification and then subsequently fail verification can be subjected to further programming. The signal frequency response of said waveform equalizer to signals having an amplitude smaller than said predetermined amplitude limitation value, has a notch in a first frequency region from zero to a frequency at which the signal frequency response is at a maximum amplitude.