Sensor Unit, especially for Fingerprint Sensors

摘要

Sensor chip, especially for measuring structures in a finger surface, characterized in that it comprises an electronic chip of a per se known type being provided with a number of sensor electrodes for capacitance measurements, the chip being positioned on an electrically insulating substrate being provided with a number of openings through which electrical conductors are provided, the ends of said conductors constituting a sensor array for capacitance measurements so that the sensor array is positioned on a first side of said substrate and the electronic chip is positioned on the other side of the substrate.