Magnetoresistive sensor capable of narrowing gap and track width
US6844998B2 · kind B2 · utility
6Cited by
10References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 20, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N50/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Assuming that a distance between an upper shield layer and a lower shield layer in an area, which overlaps only a first electrode layer, but does not overlap a second electrode layer, is G1s, and a distance between the upper shield layer and the lower shield layer at a position in alignment with a center of a multilayered film is G1c, a difference in value between G1s and G1c is set to be not larger than a predetermined value, whereby an effective track (read) width can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.