A method and appliance for the application of a continuous, low level force tending to oppose rotational movement of the hand about the carpus. A band structure of the superlattice structure of the first superlattice semiconductor layer is a type I structure, and that of the second superlattice semiconductor layer is a type II structure. A layer of an oxide substance is formed on a top surface of the upper layer of the substrate covering the STIs. The comparator receives subsequent differentials, compares the differentials to a zero offset, and sets bits dependent upon whether the differentials are greater than the zero offset.