Patent 7999256 was granted and assigned to Panasonic on August, 2011 by the United States Patent and Trademark Office.
Electrode pads respectively have a probe region permitting probe contact and a non-probe region. In each of the electrode pads arranged zigzag in two or more rows, a lead interconnect for connecting another electrode pad with an internal circuit is not placed directly under the probe region but placed directly under the non-probe region.