Magnetic head, head gimbal assembly and disk drive unit with the same, and manufacturing method thereof
US8810965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic head includes a slider substrate having a trailing edge and multiple bonding pads arranged on the trailing edge in a row. Each of the bonding pads includes a seed layer adhered to the trailing edge and electrically connected with the slider substrate, a soldering layer formed on the seed layer and adapted for connecting with a suspension, and at least one solder nonwettable layer adhered to the trailing edge and connected with at least one side of the seed layer. The structure of the magnetic head is simple and stable, which can prevent the bonding pads bridging and shorting-circuit. An HGA and a disk drive unit with the same, a manufacturing method for the magnetic head are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.