The present invention relates to a process for measuring the effectiveness of a corrosion inhibitor. The process features forming a heavily doped sourcedrain region in an area of a semiconductor substrate not covered by the gate structure or by composite insulator spacers located on the sides of the gate structure. The transfer function is automatically updated based on current machine data. Periods of speech activity are detected and a final position estimate is generated during the periods of speech activity. The polysilicon gate is doped to have a work function not greater 4. In one embodiment, a plurality of different data strings are initialized building a symbol array, and finding differences within the data by analyzing various relationships within the data strings, such as the existence of unique strings.