Patent ID: 8794054

Claim:
A sensor device for analyzing components of a fluidic sample, the sensor device comprising: a multilayer structure comprising: a nanopore formed therein which is adapted to let pass the fluidic sample, the nanopore having a cross-section dimension of less than 20 nanometers; a stacked sensing arrangement arranged in such a way that the fluidic sample passes the stacked sensing arrangement when the fluidic sample passes the nanopore, the stacked sensing arrangement comprising at least three sensing layers which are arranged above each other and which are electrically insulated from each other by a dielectric layer arranged between two sensing layers, wherein the sensing layers have a thickness of less than 10 nm and wherein the dielectric layer has a thickness of less than 10 nm between two sensing layers; a cover layer over the stacked sensing arrangement, the cover layer having a sidewall that forms a primary hole over the nanopore, said primary hole having a cross-section dimension that is larger than the cross-section of the nanopore; and a sidewall spacer formed on the sidewall of the cover layer, the sidewall spacer having a dimension that reduces the cross-section dimension of the primary hole.