Devices including metal layer

Patent metadata

Field	Value
Publication number	US-10636440-B2
Application number	US-201916260946-A
Country	US
Kind code	B2
Filing date	Jan 29, 2019
Priority date	Mar 22, 2015
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

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), 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 overcoat positioned over at least the metallic layer; and
an adhesion layer positioned between at least the metallic layer and the overcoat layer, wherein the adhesion layer comprises silicon (Si), chromium (Cr), titanium (Ti), tantalum (Ta), zirconium (Zr), niobium (Nb), neodymium (Nd), hafnium (Hf), nickel (Ni), or combinations thereof.

2. The device according to claim 1 , wherein the metallic layer comprises iridium (Ir), rhodium (Rh), ruthenium (Ru), radium (Ra), or combinations thereof.

3. The device according to claim 1 , wherein the metallic layer comprises platinum (Pt), palladium (Pd), ruthenium (Ru), iridium (Ir), rhodium (Rh), 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.

4. The device according to claim 1 , wherein the metallic layer comprises iridium (Ir).

5. The device according to claim 1 , wherein the metallic layer comprises iridium (Ir), chromium (Cr), tin (Sn), platinum (Pt), or combinations thereof.

6. The device according to claim 1 , wherein the metallic layer is an alloy of gold and one or more of platinum (Pt), palladium (Pd), ruthenium (Ru), iridium (Ir), rhodium (Rh), rhenium (Re), chromium (Cr), nickel (Ni), lead (Pb), silicon (Si), tin (Sn), aluminum (Al), hafnium (Hf), copper (Cu), yttrium (Y), or combinations thereof.

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

8. The device according to claim 1 , wherein the metallic layer has a thickness from about 0.5 nm to about 5 nm.

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

10. The device according to claim 1 , wherein the metallic layer is only overlying the peg and the write pole.

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

12. 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), 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 overcoat positioned over at least the metallic layer; and
an adhesion layer positioned between at least the metallic layer and the overcoat layer, wherein the adhesion layer has a thickness from about 0.1 nm to about 10 nm.

13. 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;
an adhesion layer positioned between at least the metallic layer and the overcoat layer, wherein the adhesion layer comprises silicon (Si), chromium (Cr), titanium (Ti), tantalum (Ta), zirconium (Zr), niobium (Nb), neodymium (Nd), hafnium (Hf), nickel (Ni), or combinations thereof;
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; and
an overcoat positioned over at least the metallic layer.

14. The device according to claim 13 , wherein the wherein the metallic layer has a thickness from about 0.1 nm to about 50 nm.

15. The device according to claim 13 , wherein the metallic layer is only overlying the peg.

16. The device according to claim 13 further comprising a magnetic reader and wherein the metallic layer is not positioned over the magnetic reader.

Assignees

• Seagate Technology Llc

Inventors

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

Classifications

• G11B5/6088

  Optical waveguide in or on flying head · CPC title

• 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

• G11B5/3106

  where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination (G11B5/3133 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

• G11B5/012

  Recording on, or reproducing or erasing from, magnetic disks (G11B17/00, G11B19/00 take precedence) · CPC title