Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducer
US8375565B2 · kind B2 · utility
168Cited by
57References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method fabricates a transducer having an air-bearing surface (ABS). The method includes providing at least one near-field transducer (NFT) film and providing an electronic lapping guide (ELG) film substantially coplanar with a portion of the at least one NFT film. The method also includes defining a disk portion of an NFT from the portion of the at least one NFT film and at least one ELG from the ELG film. The disk portion corresponds to a critical dimension of the NFT from an ABS location. The method also includes lapping the at least one transducer. The lapping is terminated based on a signal from the ELG.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.