Some exemplary embodiments of high voltage cascaded III-nitride semiconductor package with an etched leadframe have been disclosed. The magnetostrictive torque sensor device includes a magnetostrictive portion provided on a surface of the rotary shaft, a coil and a cylindrical back-yoke disposed in outer periphery of the coil. A medical instrument which has, on at least a part of a base material, a hydrophilic polymer film and a fluoropolymer film located as the upper layer thereof. Page menu buttons are highlighted if they pertain to pages containing results deemed to have been seen by the user. A source contact is also fabricated in the well.