| http://www.w3.org/ns/prov#value | - A plurality of electrode pads 10 are provided to the substrate 1. [0132] The formation of the first cover layer 21 is performed by coating the substrate 1 with a solution of a polyacrylic acid, polyvinyl alcohol, or other such macromolecule with high water solubility by a know process such as spin coating or screen printing (see FIG. 1b).
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