A nonaqueous-electrolyte battery which is capable of preventing introduction of water and deterioration in the capacity thereof is disclosed. The device receives the input signal and the force feedback signal and responsively delivers to the actuator a control signal. The third casing may be engaged with the first casing so that the third casing does not move away from the first casing at the upper, lower, left, right, and front sides, and may also be engaged with the second casing so that the third casing does not move away from the first casing at the rear side. The method is preferably applicable for etching an emitter window in the manufacture of a bipolar transistor having a self-registered base-emitter structure. The graphics processor using this bus architecture may execute programs from either the program ROM, external RAM or its own internal cache RAM. The shape of the mark is determined in accordance with the optical characteristic of he substrate.