Apparatus and method for head gimbal assembly sharing power to slider amplifier and micro-actuator in a hard disk drive
US7715150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Jul 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4853
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The head gimbal assembly includes a slider and a micro-actuator assembly sharing power for the micro-actuator assembly to aid in positioning the slider and for an amplifier included in the slider to generate an amplified read signal when the slider read accesses data on a rotating disk surface included in a hard disk drive. The slider includes a read-write head providing a read differential signal pair to an amplifier to generate an amplified read signal reported when read accessing a rotating disk surface near the slider, which includes a read head employing a spin valve or employing a tunneling valve. Hard disk drive including a head stack assembly, which includes at least one of the head gimbal assemblies. Manufacturing the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of the invention's manufacturing processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.