A method for bonding a semiconductor die to a substrate is described. Thus, the display layout of the multi-display system can automatically be changed in accordance with external environment. The housing assembly defines a hopper chamber that houses pharmaceutical articles, and a dispensing channel fluidly connected to the hopper chamber. The electrical parameters also may be established from baseline motor data and motor data obtained at a desired operating load of the motor. The knuckle hub assembly is mounted into a floating tool for finish turning of the flange surface to provide minimal run out and maximum flatness. Very small or imperceptible motions of a user may be captured and magnified to determine characteristics of the motions that may be used as a motion-based credential for user authentication.