System and method for providing stable control for power systems. A storage unit stores added information corresponding to data stored on the storage medium. The method comprises depositing a bond pad on a metal on the first wafer and sequentially bonding the first wafer to the second wafer utilizing first and second temperatures. Top and bottom portions of the plurality of members are joined to top and bottom end plates that oppose each other respectively, to form the wafer boat. Such units can be installed with minimal or no moorings. The seal arm traverses both generally radially and generally axially to extend the drink seal to the drink aperture as the seal assembly transitions to the first position.