A force sensing device includes a sensor array, a first substrate, a second substrate and a plurality of electrodes. The first substrate has a sensor region and a side region. The second substrate has a sensor region and a side region. The sensor array is formed above the sensor region of the first substrate. The plurality of electrodes are formed on the sensor region and the side region of the first substrate and below the sensor region and the side region of the second substrate, and coupled to the sensor array. The side region of the first substrate, the side region of the second substrate and the plurality of electrodes on the side region are foldable to a back side of the sensor array.