Slider gas-bearing surface designs to mitigate effects of smear in heat-assisted magnetic recording
US10629236B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are sliders having air-bearing surface (ABS) designs to mitigate the effects of smear on near-field transducers used in data storage devices, and data storage devices comprising such sliders. A slider comprises a leading edge, a trailing edge, a NFT, and an ABS with features to increase oxygen concentration near the NFT. The ABS comprises a channel configured to direct gas in a direction from the leading edge toward the trailing edge and a funnel region connected to the channel, disposed between the channel and the NFT, and configured to receive gas from the channel. In an ABS view of the slider, a width of the funnel region along a longitudinal axis passing through the NFT monotonically increases with distance from the NFT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.