| 摘要 |
A data tablet has an electrode matrix that includes two sets of electrodes, the sets of electrodes being arranged along coordinate axes on opposite sides of an intermediate insulating layer in such a way that the electrodes in one set are orthogonal to the electrodes in the other set. The electrodes of each of said sets constituting a first group and a second group, the electrodes in said first group being connected respectively to leading lines arranged in the same plane as of said electrodes in said first group, and the electrodes in said second group being connected via through-holes formed in said intermediate insulating layer respectively to other leader lines arranged in the same plane as of said electrodes of the other set. The data tablet can be produced by forming a first circuit pattern on a substrate of an electrical insulating material by printing, then printing an insulating pattern on the substrate thereby forming the intermediate insulating layer overlaid on the first circuit pattern, and printing a second circuit pattern on the intermediate insulating layer. When the second circuit pattern is printed, the parts of said pattern on the apertures in the intermediate insulating layer overlie the first circuit pattern under the intermediate insulating layer.
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