A fingerprint sensor device for fingerprint detection, comprising: an array of sensor pixels configured to capacitively couple with a touch portion of a finger to form an array of fingerprint associated capacitors having capacitive values indicative of a fingerprint, each sensor pixel including an output terminal (Vr) configured to output an output signal that indicates a local capacitive coupling with the touched portion of the finger as part of fingerprint data for fingerprint detection; a capacitive sensing layer including an electrically conductive material that can be capacitively coupled to a local part of the touch portion of the finger, forming a fingerprint associated capacitor; an integrated circuit layout layer that is electrically conductive and is capacitively coupled to a ground terminal, forming a layout associated capacitor; a fingerprint voltage generator electrically coupled to supply power to the capacitive sensing layer to generate a fingerprint voltage to charge the fingerprint associated capacitor; a layout voltage generator electrically coupled to supply power to the integrated circuit layout layer to generate a layout voltage to charge the layout associated capacitor; fingerprint switching circuitry configured to switch between electrically connecting the capacitive sensing layer to the fingerprint voltage generator and the output terminal (Vr) to selectively charge the fingerprint associated capacitor using the fingerprint voltage; and layout switching circuitry configured to switch between electrically connecting the integrated circuit layout layer to the layout voltage generator and the output terminal (Vr) to selectively charge the layout associated capacitor using the layout voltage; wherein the capacitive sensing layer and the integrated circuit layout layer are both coupled to the output terminal (Vr) to form an output signal when the capacitive sensing layer is electrically connected to the output terminal (Vr), and the integrated circuit layout layer is electrically connected to the output terminal (Vr). an output terminal (Vr) configured to output an output signal that indicates a local capacitive coupling with the touched portion of the finger as part of fingerprint data for fingerprint detection; a capacitive sensing layer including an electrically conductive material that can be capacitively coupled to a local part of the touch portion of the finger, forming a fingerprint associated capacitor; an integrated circuit layout layer that is electrically conductive and is capacitively coupled to a ground terminal, forming a layout associated capacitor; a fingerprint voltage generator electrically coupled to supply power to the capacitive sensing layer to generate a fingerprint voltage to charge the fingerprint associated capacitor; a layout voltage generator electrically coupled to supply power to the integrated circuit layout layer to generate a layout voltage to charge the layout associated capacitor; fingerprint switching circuitry configured to switch between electrically connecting the capacitive sensing layer to the fingerprint voltage generator and the output terminal (Vr) to selectively charge the fingerprint associated capacitor using the fingerprint voltage; and layout switching circuitry configured to switch between electrically connecting the integrated circuit layout layer to the layout voltage generator and the output terminal (Vr) to selectively charge the layout associated capacitor using the layout voltage; wherein the capacitive sensing layer and the integrated circuit layout layer are both coupled to the output terminal (Vr) to form an output signal when the capacitive sensing layer is electrically connected to the output terminal (Vr), and the integrated circuit layout layer is electrically connected to the output terminal (Vr).