Granted Patent B2

US 8,159,778 · App. 12/419,221 · Granted Apr 17, 2012

Abstract

Claims (27)

1. Hard disk drive comprising hard disk drive contamination control, said disk device comprising:

an enclosure of said hard disk drive; and

a mesoporous material disposed within said enclosure, wherein said mesoporous material sorbs contaminants within said enclosure and wherein said mesoporous material has substantially uniform pore size across an outer surface of said mesoporous material.

2. The hard disk drive of claim 1 , wherein said mesoporous material is a mesoporous silicate that is initially hydrophilic and is surface modified to be hydrophobic, such that said surface modified mesoporous material adsorbs contaminants within said enclosure.

3. The hard disk drive of claim 2 , wherein said surface modified mesoporous material is partially surface modified, wherein said partially surface modified surface is hydrophobic and said surface that is not surface modified remains hydrophilic.

4. The hard disk drive of claim 1 , wherein said mesoporous material is selected from a list consisting essentially of: MCM-41 or MCM-48.

5. The hard disk drive of claim 1 , wherein said mesoporous material is surface modified by Me 3 SiCl.

6. The hard disk drive of claim 1 , wherein said hard disk drive further comprises:

a surface modified mesoporous material that is hydrophobic combined with said mesoporous material that is hydrophilic, such that said unmodified mesoporous material absorbs and said surface modified mesoporous material adsorbs contaminants in said enclosure.

7. The hard disk drive of claim 1 , wherein said mesoporous material has a specific surface area of at least 1000 m 2 /g.

8. A method of manufacturing a hard disk drive with contamination control, said method comprising:

encasing said hard disk drive and a mesoporous material in an enclosure of said hard disk drive, wherein said mesoporous material sorbs contaminants within said enclosure and wherein said mesoporous material has substantially uniform pore size across an outer surface of said mesoporous material.

9. The method of claim 8 , wherein said method further comprises:

surface modifying said mesoporous material that is hydrophilic in nature to hydrophobic in nature, such that said surface modified mesoporous material adsorbs contaminants within said enclosure.

10. The method of claim 9 , wherein said surface modifying said mesoporous material comprises:

modifying said mesoporous material with Me 3 SiCl.

11. The method of claim 9 , wherein said surface modifying a mesoporous material comprises:

modifying a portion of an surface of said mesoporous material, wherein said modified portion adsorbs contaminants in said enclosure and an unmodified portion of a surface of said mesoporous material absorbs contaminants within said enclosure.

12. The method of claim 8 , wherein said mesoporous material is selected from a list consisting essentially of: MCM 41/48.

13. The method of claim 8 , wherein said method comprises:

combining an unmodified mesoporous material that is substantially hydrophilic in nature with said modified mesoporous material and disposing said combination in said enclosure, such that said unmodified mesoporous material absorbs contaminants in said enclosure.

14. The method of claim 8 , wherein said mesoporous material has a substantially uniform pore size across.

15. The method of claim 8 , wherein said mesoporous material has a specific surface area of at least 1000 m 2 /g.

16. A method of enabling low fly height in a hard disk drive, said method comprising:

surface modifying MCM 41/48 that is initially hydrophilic in nature to hydrophobic in nature, wherein said surface is modified by Me 3 SiCl; and

encasing said hard disk drive and said surface modified MCM 41/48 in an enclosure, wherein said surface modified MCM 41/48 adsorbs siloxanes within said enclosure to prevent hard disk drive failure.

17. The method of claim 16 , wherein said fly height is less than 10 nanometers.

Assignments (6)