Patent ID: 7474512

Claim:
A micro-actuator for a head gimbal assembly, comprising: a support frame including a bottom support adapted to be connected to a suspension of the head gimbal assembly, a top support adapted to support a slider of the head gimbal assembly, and a leading beam that couples the bottom support and the top support, the leading beam including weak points or notches that allow the top support to rotate about a rotational axis in use; and first and second PZT elements, the first PZT element mounted between first sides of the top and bottom supports, and the second PZT element mounted between second sides of the top and bottom supports, the first and second PZT elements being excitable to cause selective rotational movement of the top support about the rotational axis in use; wherein the top support includes vertically extending side plates on opposing first and second sides thereof and the bottom support includes vertically extending side plates on opposing first and second sides thereof the side plates of the top and bottom supports structured to support the first and second PZT elements.