Heat assisted magnetic recording (HAMR) heads including components made of nickel alloys
AssigneeSeagate Technology LLC
InventorsSarbeswar Sahoo, Edwin Rejda, Ibro Tabakovic, Steven Carl Riemer, Michael Christopher Kautzky
Life of this patent
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Abstract
A magnetic device that includes a write pole having a write pole tip; a read pole having a read pole tip; an optical near field transducer; and a contact pad. The contact pad includes Ni100-aXa, wherein X is chosen from Ru, Re, Zr, Cr, and Cu; and a is the atomic percent of the element X, and can range from about 20 to about 90. The optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole opposite the optical near field transducer.
Claims20
A magnetic device comprising:
- a write pole;
- a read pole;
- an optical near field transducer;
- and
- a contact pad, the contact pad comprising an alloy that comprises nickel,
- wherein the optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole opposite the optical near field transducer.
A magnetic device comprising:
- a write pole;
- a read pole;
- an optical near field transducer;
- a contact pad, the contact pad comprising an alloy that comprises nickel;
- and
- a heat sink positioned adjacent the write pole, the heat sink comprising the alloy that comprises nickel,
- wherein the magnetic device has an air bearing surface, a leading edge and trailing edge, and wherein the contact pad is the closest to the trailing edge, the optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole opposite the optical near field transducer.
A disc drive comprising:
- a suspension;
- and
- a slider attached to the suspension, the slider comprising:
- a slider body having a leading edge, a trailing edge and an air bearing surface;
- a write pole on the slider body and having a pole tip adjacent the air bearing surface;
- a read pole on the slider body and having a pole tip adjacent the air bearing surface;
- an optical near field transducer on the slider body adjacent the air bearing surface;
- and
- a contact pad on the slider body adjacent the air bearing surface, wherein the contact pad comprises an alloy, the alloy comprising nickel,
- wherein the optical near field transducer is positioned between the read pole and the write pole and the contact pad is positioned adjacent the write pole on the opposite side of the optical near field transducer.
Dependencies are inferred from the claim text.