Fingerprint sensor with differently sized sensing structures

A fingerprint sensor to be included in a fingerprint sensor arrangement comprising dielectric material having a non-uniform thickness profile defining a topography of a finger receiving surface of the fingerprint sensor arrangement, the fingerprint sensor comprising a plurality of electrically conductive sensing structures arranged in a sensing plane for capacitively sensing a fingerprint of a finger placed on the finger receiving surface of the fingerprint sensor arrangement, the plurality of electrically conductive sensing structures including:

• a first set of electrically conductive sensing structures arranged to be covered by a thickness of the dielectric material within a first thickness range, each sensing structure in the first set of electrically conductive sensing structures covering an area in the sensing plane being within a first area range;
• and
• a second set of electrically conductive sensing structures arranged to be covered by a thickness of the dielectric material within a second thickness range only including greater thicknesses than the first thickness range, each sensing structure in the second set of electrically conductive sensing structures covering an area in the sensing plane being within a second area range only including areas greater than the areas within the first area range.