Claims
- 1. A magnetic recording medium comprising:
a substrate having a distribution of pits or indentations therein to serve as servo-marks in the magnetic recording medium; a magnetic layer on the substrate; a protective overcoat on the magnetic layer; and a cross-linked fluoropolyether topcoat directly on the protective overcoat.
- 2. The magnetic recording medium according to claim 1, further comprising an underlayer on the substrate and the magnetic layer on the underlayer.
- 3. The magnetic recording medium according to claim 2, wherein the protective overcoat comprises carbon.
- 4. The magnetic recording medium according to claim 1, wherein the cross-linked fluoropolyether topcoat comprises a cross-linked perfluoropolyalkylether.
- 5. The magnetic recording medium according to claim 1, wherein the protective overcoat comprises one or more amorphous carbon layers and wherein the cross-linked fluoropolyether topcoat comprises a cross-linked perfluoropolyalkylether directly on the one or more amorphous carbon layers.
- 6. A magnetic recording medium, comprising:
a magnetic layer on a substrate having a distribution of pits or indentations therein; and means for lubricating the magnetic recording medium.
- 7. A method of reading from or writing on the magnetic recording medium defined in claim 1, the method comprising:
sensing one or more of the servo-marks in the magnetic recording medium with a read/write head; and moving the read/write head to a particular position on the magnetic recording medium in response to reading the one or more servo-marks.
- 8. A method of manufacturing a recording medium, the method comprising:
applying a fluoropolyether capable of cross-linking on the magnetic recording medium having a distribution of servo-marks therein; and polymerizing the fluoropolyether to form a cross-linked fluoropolyether topcoat lubricant on the magnetic recording medium having the distribution of servo-marks therein.
- 9. The method according to claim 8, comprising:
texturing a surface of a non-magnetic substrate to form a distribution of pits or indentations therein to function as the servo-marks in the magnetic recording medium.
- 10. The method according to claim 8, forming a protective overcoat over a magnetic recording medium prior to applying the fluoropolyether.
- 11. The method according to claim 10, comprising polymerizing the fluoropolyether to a crosslinked perfluoropolyether lubricant directly on the protective overcoat.
- 12. The method according to claim 8, wherein fluoropolyether comprises wherein the fluoropolyether comprises a plurality of —(CaF2aO)n— repeating units, wherein subscript a is independently in each repeating unit an integer of from 1 to about 10 and n is an integer from 5 to about 80.
- 13. The method according to claim 12, wherein fluoropolyether comprises one or more acrylate groups.
- 14. The method according to claim 8, comprising polymerizing the fluoropolyether by ultraviolet radiation.
- 15. The method according to claim 8, comprising applying a fluoropolyether capable of cross-linking on the magnetic recording medium by dip coating the magnetic recording medium.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from provisional patent application Serial No. 60/208,743, filed 2 Jun. 2000 entitled “PLANARIZATION AND CORROSION PROTECTION OF PATTERNED MAGNETIC MEDIA” the entire disclosure of which is incorporated herein by reference. This application is related to U.S. Ser. No. 09/559,096, filed 27 Apr. 2000 entitled “ELASTOMERIC LUBRICANTS FOR MAGNETIC RECORDING MEDIA.”
Provisional Applications (1)
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Number |
Date |
Country |
|
60208743 |
Jun 2000 |
US |
Divisions (1)
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Number |
Date |
Country |
Parent |
09871742 |
Jun 2001 |
US |
Child |
10714854 |
Nov 2003 |
US |