A coupling having at least two concentric rings, each having a circumferential surface and a recess, and at least two roller elements. The fabrication device comprises a socket plate that includes a plurality of cavities formed therein that correspond in position and number to the solder bumps formed on the front surface of a product wafer. The pulling force required for extracting the root is subsequently applied to the root substantially in the direction of the axis of the tooth by means of the tensioning device that has been partially inserted into the mouth and supported there. A feedback circuit is provided for generating a feedback signal indicative of the regulated voltage provided by the switching regulator circuit to the load. , hydrophobicity X, polarity Y, and hydrophilicity Z, an electrolyte parameter, E, is introduced to characterize both local and long-range ion-ion and ion-molecule interactions attributed to ionized segments of electrolytes.