Devices including metal layer

Patent metadata

Field	Value
Publication number	US-10192573-B2
Application number	US-201615073433-A
Country	US
Kind code	B2
Filing date	Mar 17, 2016
Priority date	Mar 22, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

Devices having an air bearing surface (ABS), the devices include a write pole; a near field transducer (NFT) including a peg and a disc, wherein the peg is at the ABS of the device; an overcoat, the overcoat including a low surface energy layer.

First claim

What is claimed is:

1. 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 metallic layer positioned over at least the peg of the NFT at the ABS, the metallic layer comprising: iridium (Ir), chromium (Cr), tin (Sn), platinum (Pt), or combinations thereof;
an adhesion layer comprising silicon (Si), chromium (Cr), titanium (Ti), tantalum (Ta), zirconium (Zr), niobium (Nb), neodymium (Nd), hafnium (Hf), nickel (Ni), or combinations thereof; and
an overcoat positioned over at least the metallic layer,
wherein the adhesion layer is positioned between at least the metallic layer and the overcoat layer.

2. The device according to claim 1 , wherein the wherein the metallic layer has a thickness from about 0.1 nm to about 50 nm.

3. The device according to claim 1 , wherein the metallic layer is only overlying the peg.

4. The device according to claim 1 further comprising a magnetic reader and wherein the metallic layer is not positioned over the magnetic reader.

5. The device according to claim 1 , wherein the adhesion layer has a thickness from about 0.1 nm to about 10 nm.

6. 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 metallic layer positioned over at least the peg of the NFT at the ABS and the write pole, the metallic layer comprising: iridium (Ir), rhodium (Rh), ruthenium (Ru), radium (Ra), platinum (Pt), palladium (Pd), rhenium (Re), chromium (Cr), niobium (Nb), nickel (Ni), lead (Pb), silicon (Si), tin (Sn), aluminum (Al), tungsten (W), molybdenum (Mo), hafnium (Hf), titanium (Ti), zirconium (Zr), yttrium (Y), or combinations thereof;
an adhesion layer having a thickness from about 0.1 nm to about 10 nm; and
an overcoat positioned over at least the metallic layer,
wherein the adhesion layer is positioned between at least the metallic layer and the overcoat layer.

7. The device according to claim 6 , wherein the metallic layer comprises iridium (Ir), chromium (Cr), tin (Sn), platinum (Pt), or combinations thereof.

Assignees

• Seagate Technology Llc

Inventors

• Cheng Yuhang
• Rejda Ed F
• Boyne Andrew J
• Wierman Kurt W
• Seigler Michael
• Franzen Scott
• Gong Jie

Classifications

• G11B5/314 Primary

  where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers (G11B5/3196 takes precedence) · CPC title

• G11B5/187

  Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features (G11B5/265, {G11B5/29} , G11B5/31 take precedence) · CPC title

• G11B5/6088

  Optical waveguide in or on flying head · CPC title

• G11B2005/0021

  Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal · CPC title

• G11B5/1278

  specially adapted for magnetisations perpendicular to the surface of the record carrier · CPC title