A system and method to determine directional measurements for a drilling tool that at times rotates and at other times does not rotate. A combiner is connected to the plurality of delay devices for combining the time-delayed signals and the phased signals, the combiner outputting a combined signal. In addition, the elastomeric material may only partially circumferentially encapsulate the metal material so that the metal material forms part of the surface of the rod. An opening is formed through the masking material and into the semiconductor substrate effective to form an isolation trench within semiconductive material of the semiconductor substrate.