US Patent 11609130 Cantilever force sensor

A cantilever force sensor with relatively lower On-Force is disclosed, which comprises a top stack, a bottom stack, and a spacer. The first spacer is configured between the top stack and the bottom stack and configured in a first side of the force sensor. A second side, opposite to the first side, of the top stack, is cantilevered from the bottom stack. When the force sensor is depressed from the top side, the second side of the top stack moves down using the first spacer as a fulcrum. Since the cantilevered side can be easily depressed down so that the On-Force for the force sensor is reduced and hence a force sensor with a relatively higher sensitivity is created.