Abstract: A MEMS unpowered pressure sensor device including a substrate, a flexible membrane operatively connected to the substrate, and a cantilever beam operatively connected to the substrate and suspended over the flexible membrane. The flexible membrane is configured to deform towards the cantilever beam upon pressure applied such that the deformed flexible membrane makes contact with the cantilever beam. The device may include a plurality of bond pads arranged around the flexible membrane. Each of the plurality of bond pads may include its own cantilever beam forming an array of a plurality of cantilever beams. The plurality of cantilever beams includes beams of different lengths. The device may include at least one bond pad on the substrate and over the flexible membrane. The cantilever beam may extend from at least one bond pad. The flexible membrane may deform in a substantially dome shape.