An apparatus for, and method of, placing a plurality of spacers between a parallel opposed anode and cathode of an emissive display includes temporarily securing, by applying a vacuum for example, a first side of one of the anode or cathode to a base having a plurality of electromagnets positioned therein. The electromagnetic field intensity of the electromagnetic waves is calculated on the basis of coordinates data for which smoothing is completed. The retaining member is fixed in the receiving cavity of the insulative coat to retain the connector member and the insulative coat together steadily. Finally, the femto base station configures its downlink radio signal transmission time based on the desired reference signal such that the femto base station is synchronized with the plurality of neighboring macro base stations. Improved work function and threshold modulation are provided by the methods and structures.