Laminated coil for a magnetic head of a disk drive and method for manufacturing the same
US5757592A · kind A · utility
10Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Sep 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coil encircling the ferrite core of a magnetic head attached to a slider used in a hard disk drive is formed using two mating chips. A first chip having layered wires and bonding bumps is inserted in the winding window between the ferrite core and the body of the slider. A second chip having layered wires, bonding bumps and a groove straddling the ferrite core is disposed outside the winding window and mates with the first chip. Bonding bumps, comprising low-melting solder, are heat bonded to form a continuous coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.