Patent ID: 9122901
Filing Date: 2015-09-01
Classification: G06K,H01L

Abstract:
1. A sensor unit for measuring a surface of an object, the sensor unit comprising: a first dielectric layer; a signal processing unit; a second dielectric layer located between said first dielectric layer and said signal processing unit, the second dielectric layer having a first side that faces the first dielectric layer and a second side opposite the first side; a set of first electrodes having predetermined sizes and positions at the first side of the second dielectric layer; a set of second electrodes having predetermined sizes and positions at the first side of the second dielectric layer; and a plurality of conductive sections separated by dielectric material in said second dielectric layer, each of the plurality of conductive sections extending from the first side to the second side and having: electrically conductive components connected to said conductive sections at said predetermined positions of said second ends of the conductive sections, the electrically conductive components providing galvanic connection to the signal processing unit, wherein each of said electrically conductive components of a set of electrically conductive components that provide electrical connection for the second electrodes is offset, in a direction parallel to the first side or the second side of the second dielectric layer, from a center of a corresponding one of said second electrodes; and wherein said signal processing unit is adapted to detect a voltage or current at said first electrodes and second electrodes.