The present invention proposes a method for fabricating shallow trench regions for isolation. The controller can also accept voice commands to control functions of a second system associated with the bed. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A cinch strap with a releasable securing mechanism closes the open top end around the user’s limb. The inner frame is rotatably connected to the lower bearing and includes a plurality of second rods arranged in a second circle. The connecting conductive member is selectively connected to the Schottky electrode above the well region such that a connection surface between the connecting conductive member and the Schottky electrode is not extended above a Schottky junction between the Schottky electrode and the semiconductor substrate of the first conductivity type.