Devices including a difussion barrier layer
AssigneeSeagate Technology LLC
InventorsSarbeswar Sahoo, Martin Blaber, Hui Brickner, Tong Zhao, Yuhang Cheng, John Duda, Tae-Woo Lee
Life of this patent
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Abstract
Devices having an air bearing surface (ABS), the devices including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg is at the ABS of the device; a heat sink positioned adjacent the disc of the NFT; a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.
Claims20
A device having an air bearing surface (ABS), the device comprising:
- a write pole;
- a near field transducer (NFT) comprising a peg and a disc, wherein the peg is at the ABS of the device;
- a heat sink positioned adjacent the disc of the NFT;
- a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device;
- and
- a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink and directly adjacent the gap, the disc and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.
A device having an air bearing surface (ABS), the device comprising:
- a write pole;
- a near field transducer (NFT) comprising a peg and a disc, wherein the peg is at the ABS of the device;
- a heat sink positioned adjacent the disc of the NFT;
- a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device;
- and
- a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink and directly adjacent the gap, the disc and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 110° and comprises molybdenum (Mo), tantalum (Ta), niobium (Nb), hafnium (Hf), neodymium (Nd), holmium (Ho), molybdenum (Mo), tungsten (W), iridium (Ir), rhodium (Rh), ruthenium (Ru), rhenium (Re), titanium (Ti), zirconium (Zr), nickel (Ni), uranium (U), yttrium (Y), vanadium (V), or combinations thereof.
A device having an air bearing surface (ABS), the device comprising:
- a write pole;
- a near field transducer (NFT) comprising a peg and a disc, wherein the peg is at the ABS of the device;
- a heat sink positioned adjacent the disc of the NFT;
- a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device;
- and
- a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink and directly adjacent the gap, the disc and the heat sink, wherein the conformal diffusion barrier layer comprises rhenium (Re), vanadium (V), or combinations thereto.
Dependencies are inferred from the claim text.