| US 7,554,773 B2 | ||
| Micro-actuator, head gimbal assembly and disk drive unit with the same | ||
| Li Yan Zhu, Milpitas, Calif. (US); Ming Gao Yao, GuangDong (China); and Masashi Shiraishi, Hong Kong (China) | ||
| Assigned to SAE Magnetics (H.K.) Ltd., Hong Kong (China) | ||
| Filed on Mar. 16, 2005, as Appl. No. 11/80,657. | ||
| Claims priority of application No. 2005 1 0052036 (CN), filed on Feb. 28, 2005. | ||
| Prior Publication US 2006/0193086 A1, Aug. 31, 2006 | ||
| Int. Cl. G11B 5/58 (2006.01) | ||
| U.S. Cl. 360—294.4 | 19 Claims |
| 1. A head gimbal assembly comprising:
a slider;
a micro-actuator to adjust the position of the slider; and
a suspension to load the slider and the micro-actuator;
wherein the micro-actuator comprises:
two side arms;
a load plate for supporting the slider, which is connected with at least one of the side arms;
a piezoelectric element disposed on the side arms; and
a base shaft to couple with the suspension, which is connected with the side arms and positioned between the load plate and
the piezoelectric element.
|