1. A sensor comprising: a substrate with a sensitive area defined by a pattern of electrodes, wherein the pattern of electrodes includes: a first group of drive elements interconnected to form a plurality of row electrodes extending along a first direction; a second group of drive elements interconnected to form a plurality of column electrodes extending along a second direction; and a group of sense elements interconnected to form a sense electrode extending along both the first and second directions, wherein the drive elements in a column or row are interconnected to each other by connection traces.