Ampere head with perpendicular magnetic field
AssigneeSeagate Technology LLC
InventorsThomas W. Clinton, Jonathan D. Hannay, Michael A. Seigler
Life of this patent
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Abstract
A magnetic head for generating a magnetic field for is provided in which first and second electrical contacts are electrically coupled to a thin film wire. An electrical current is passed between the contacts and through the wire to generate a magnetic field. A focus mechanism is provided to focus the magnetic field and thereby increase the flux density of the magnetic field along a recording edge of the thin film wire.
Claims28
A magnetic device for generating a magnetic field, comprising:
- a first electrical contact configured to couple to an electrical current source having a modulated electrical current output;
- a second electrical contact configured to couple to the current source;
- a thin film wire coupled between the first electrical connection and the second electrical connection to carry the modulated electrical current therebetween, and responsively generate a magnetic field along a recording edge of the thin film wire;
- and
- a magnetic field focus mechanism configured to increase flux density of the magnetic field along the recording edge of the thin film wire.
A method for generating a magnetic field comprising:
- placing a thin film wire proximate a recording medium;
- applying an electrical current between first and second electrical contacts and through the thin film wire to thereby generate a magnetic recording field proximate the thin film wire;
- and
- focusing the magnetic recording field along a recording edge of the thin film wire.
A magnetic head for generating a magnetic field for recording, comprising:
- a thin film wire coupled between first and second electrical contacts configured to generate a magnetic recording field along a recording edge of the thin film wire;
- and
- means for focusing the magnetic field along the recording edge of the thin film wire.
Dependencies are inferred from the claim text.