Patent ID: 9318136
Filing Date: 2016-04-19
CPC Classification: G11B

Claim Text:
1. A suspension structure, comprising: a flexure; and a motor mounted on the flexure, the motor comprising a first terminal, a second terminal, and a plurality of actuator layers formed from a piezoelectric material, the plurality of actuator layers consisting of a first set having multiple actuator layers and a second set having one or more actuator layers, the first set having a greater number of actuator layers than the second set, the first set comprising a first actuator layer and a second actuator layer adjacent to the first actuator layer, the second set comprising a third actuator layer adjacent to the second actuator layer, the plurality of actuator layers respectively poled and connected to the first and second terminals such that the multiple actuator layers of the first set one of expand or contract while the one or more actuator layers of the second set the other of expands or contracts in response to application of a signal having a first polarity across the first and second terminals, wherein the actuator layers of the first set cause longitudinal expansion or contraction of the motor while the one or more actuator layers of the second set cause the motor to at least partially curl upon the application of the signal having the first polarity.