Bond pad sharing for powering multiple writers of a recording head
US9607641B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A slider of a magnetic recording head comprises a plurality of electrical bond pads coupled to bias sources. A first writer on the slider is coupled between first and second bond pads. A second writer on the slider is coupled between third and fourth bond pads. At least one heater is coupled between two of the first, second, third, and fourth bond pads. The first writer can have a center-tap coupled to first and second bond pads. The second writer can have a center-tap coupled to third and fourth bond pads. A first writer heater can be coupled between the center-tap of the second writer and the ground pad. A second writer heater can be coupled between the center-tap of the first writer and the ground pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.