Methods for fabricating dual bit flash memory devices are provided. An identification tag such as a radio frequency identification tag is provided for molding into or attaching to a thermoformed article during the thermoforming process. The preferred embodiment of the invention is based on an optimizing compiler. An L-shaped stake is positioned transversely and perpendicularly along the centerline of each post stabilizing member. The ceramic insulation in fabricated rotors withstands the high temperatures of end ring attachment.