Slider with aluminum compound fill

Patent metadata

Field	Value
Publication number	US-9406323-B2
Application number	US-201414562268-A
Country	US
Kind code	B2
Filing date	Dec 5, 2014
Priority date	Dec 5, 2014
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

Embodiments disclosed herein generally relate to a magnetic device. The magnetic head of the magnetic device includes structure for protecting the media facing surface (MFS). The protective structure, which may be referred to as an air bearing surface overcoat (ABSOC) structure, includes an aluminum containing compound that is disposed on the slider and head. The ABSOC also includes a silicon containing compound and a carbon layer disposed thereover.

First claim

What is claimed is:

1. A magnetic device, comprising:
a slider having a surface for facing a magnetic disk;
a magnetic head coupled to the slider, wherein the magnetic head has an air bearing surface for facing the magnetic disk, wherein a notch is formed between the slider and the magnetic head, and wherein the notch is filled with an aluminum containing compound layer;
a read sensor disposed in the magnetic head;
a write element disposed in the magnetic head; and
an air bearing surface overcoat structure disposed on the air bearing surface, wherein the air bearing surface overcoat structure comprises the aluminum containing compound layer and a silicon containing compound layer, wherein the silicon containing compound layer is in physical contact with the read sensor and the write element.

2. The magnetic device of claim 1 , wherein the aluminum containing compound layer comprises aluminum nitride.

3. The magnetic device of claim 1 , wherein the aluminum containing compound layer comprises aluminum oxide.

4. The magnetic device of claim 1 , wherein the air bearing surface overcoat structure further comprises a layer comprising carbon disposed on the silicon containing compound layer.

5. The magnetic device of claim 4 , wherein the silicon containing compound layer comprises silicon nitride.

6. The magnetic device of claim 4 , wherein the aluminum containing compound layer has a thickness of less than about 2 nm.

7. The magnetic device of claim 4 , wherein the silicon containing compound layer has a thickness of between 1.0 Angstroms and 6.0 Angstroms.

8. The magnetic device of claim 4 , wherein the layer comprising carbon has a thickness of between 8 Angstroms and 18 Angstroms.

Assignees

• HGST Netherlands BV

Inventors

• Kodama Mineaki
• Azupardo Reimar
• Rillera Hannah

Classifications

• G11B5/3106 Primary

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

• G11B5/40 Primary

  Protective measures on heads, e.g. against excessive temperature  (G11B5/31 takes precedence; protection against wear G11B5/255  {; protective structure of the head: see under structures, e.g. G11B5/3106}) · CPC title

• G11B5/255

  comprising means for protection against wear {(in thin film structures G11B5/3106)} · 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

• G11B5/3163

  Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers · CPC title