An array substrate and method for an in-plane switching mode liquid crystal display device are provided. A crosstalk matrix is used to characterize crosstalk characteristics of a multi-pixel spot-centroid detector. The conductor inductance isolates the capacitance of the circuit devices from one another, thereby improving characteristics of the frequency response of the interconnect system. The process variable sensor has an electrical characteristic that changes based on a variable of a process fluid. A method for plating copper onto a semiconductor integrated circuit device substrate by forming a deposit comprising a copper wettable metal in the feature, forming a copper-based deposit on the top-field surface, and depositing copper onto the deposit comprising the copper wettable metal to fill the feature with copper.