A semiconductor device includes an SOI substrate, trench memory cells including trench capacitors formed in the SOI substrate and a mesa or trench isolation region for isolating the trench memory cells. The station on the probe sends a regular signal and on receiving the signal the another station on the coordinate positioning apparatus synchronizes its clock and sends an acknowledgement signal. The causality constraints which preserve the behaviors of the concurrent program are identified. The microprocessor is coupled to the temperature sensor and the pressure sensor to determine a flow rate, and the microprocessor generates a diagnostic based on the process pressure and the temperature as compared to the transition curve. The content server then downloads the optimal global candidate from the stored content items to one or more identified target devices during the content download procedure.