Disclosed herein is an electrode for capacitive deionization device including an active material, a waterborne polyurethane, and a conducting agent. The device includes an evaluation unit for determining the velocity of a defect on the surface from the shifted frequency and for determining the position of the defect on the surface therefrom. The starting points are positionally referenced to an image boundary of a region of interest of the image. A test fixture includes memory device receptacles, a tester interface, and conductive paths to couple the tester interface to the memory device receptacles. A top side of the encapsulating material is subjected to one of polishing, etching, and grinding to expose a top side of the semiconductor die. If they are the same, the read operation is consistent.