IP Library Granted Patent US 7,851,138
Granted Patent B2
US 7,851,138 · App. 11/880,157 · Granted Dec 14, 2010

Patterning a surface comprising silicon and carbon

Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,851,138
App. No.
11/880,157
Granted
Dec 14, 2010
Kind
B2
Abstract

Patterning a surface, comprising at least one feature having silicon coupled to a substrate, is described herein. In one embodiment a method is described for patterning a surface which comprises at least one feature having silicon and at least one feature having carbon coupled to a substrate. The surface is coated with 3-(trimethoxysilyl)propyl methacrylate, and a photoresist is applied the 3-(trimethoxysilyl)propyl methacrylate coated surface. The photoresist is imaged and the surface is etched. The photoresist is then removed.

Claims (23)

1. A method of patterning a surface, wherein said surface comprises at least one feature comprising silicon coupled to a substrate, comprising:

coating said surface with 3-(trimethoxysilyl)propyl methacrylate;

applying a photoresist to said 3-(trimethoxysilyl)propyl methacrylate coated surface;

imaging said photoresist;

etching said surface; and

removing said photoresist.

2. The method of patterning a surface of claim 1 further comprising at least one feature comprising carbon.

3. The method of patterning a surface of claim 1 wherein said at least one feature of silicon comprises approximately stoichiometric silicon nitride.

4. The method of patterning a surface of claim 1 wherein said photoresist comprises a liquid.

5. The method of patterning a surface of claim 1 wherein said photoresist comprises a dry film.

6. The method of patterning a surface of claim 2 wherein said at least one feature of silicon couples said at least one feature of carbon to said substrate.

7. The method of patterning a surface of claim 2 wherein said at least one feature comprising carbon comprises wear-resistant carbon.

8. A method of patterning an air bearing surface, wherein said air bearing surface comprises at least one feature having silicon and at least one feature having carbon coupled to a slider, comprising:

coating said air bearing surface with 3-(trimethoxysilyl)propyl methacrylate;

applying a photoresist to said 3-(trimethoxysilyl)propyl methacrylate coated air bearing surface;

imaging said photoresist;

etching said air bearing surface; and

removing said photoresist.

9. The method of patterning a surface of claim 8 wherein said feature of silicon couples said feature of carbon to said slider.

10. The method of patterning a surface of claim 8 wherein said feature of silicon comprises approximately stoichiometric silicon nitride.

11. The method of patterning a surface of claim 8 wherein said feature of carbon comprises wear-resistant carbon.

12. The method of patterning a surface of claim 8 wherein said photoresist comprises a liquid.

13. The method of patterning a surface of claim 8 wherein said photoresist comprises a dry film.

Assignments (5)
RELEASE OF SECURITY INTEREST AT REEL 052915 FRAME 0566 Recorded Feb 8, 2022
From: JPMORGAN CHASE BANK, N.A.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 059127/0001 →
SECURITY INTEREST Recorded Feb 6, 2020
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS AGENT
Reel/Frame 052915/0566 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2016
From: HGST NETHERLANDS B.V.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 040821/0550 →
CHANGE OF NAME Recorded Oct 25, 2012
From: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
To: HGST NETHERLANDS B.V.
Reel/Frame 029341/0777 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 13, 2007
From: HWANG, CHERNGYE; MCKEAN, DENNIS R.; SUZUKI, GARY J.
To: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
Reel/Frame 019687/0084 →
Continuity (1)
Related Publication 20090023100A1 · Jan 22, 2009