US Patent 11771329 Flexible temperature sensing devices for body temperature sensing

Embodiments include a temperature sensing device that includes a temperature sensor stack that includes a flexible substrate and an array of temperature sensors coupled to the flexible substrate. Each temperature sensor in the array of temperature sensors can include a conductive material defining a continuous pattern extending from a first node to a second node, a first set of conductive traces coupled to the flexible substrate, and a second set of conductive traces coupled to the flexible substrate. The temperature sensing device can include a processing circuit configured to apply an electrical signal across the conductive material of each temperature sensor using the first set of conductive traces, detect an effect of the conductive material of each temperature sensor on the electrical signal using the second set of conductive traces, and determine a temperature for the temperature sensors in the array using the detected effects of the conductive material on the electrical signal.