Multilayer disk drive motors having out-of-plane bending

摘要: Various embodiments concern a gimbaled flexure having dual stage actuation structure. The comprises gimbal on which motor is mounted. first and second terminals plurality of actuator layers formed from piezoelectric material. comprise serially stacked first, second, third layers. are respectively poled connected to the such that both expand while layer contracts in response application signal across terminals. differential motion cause curl about contracting layer. curling causes portion preferentially curl.