A biosensor comprising a plurality of devices on a substrate. Each device in the plurality of devices occupying a different region on the substrate. Each device in the plurality of devices comprises a first electrically conducting material, a spacer, and a second electrically conducting material. The...http://www.google.de/patents/US20040023253?utm_source=gb-gplus-sharePatent US20040023253 - Device structure for closely spaced electrodes
