Surface treatment of magnetic recording heads

Komvopoulos, Kyriakos; Brown, Ian G; Wei, Bo; Anders, Simone; Anders, Andre; Bhatia, Singh C

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Title: Surface treatment of magnetic recording heads

Abstract

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances.

Inventors:

Komvopoulos, Kyriakos ^[1]; Brown, Ian G ^[2]; Wei, Bo ^[3]; Anders, Simone ^[3]; Anders, Andre ^[3]; Bhatia, Singh C ^[4]

Orinda, CA
Berkeley, CA
Albany, CA
Morgan Hill, CA

Issue Date:: 1995-01-01

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

OSTI Identifier:: 870209

Patent Number(s):: 5476691

Assignee:: International Business Machines, Inc. (New York, NY); Regents of University of California (Oakland, CA)

Patent Classifications (CPCs):: C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

Show more

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B35/00 - Shaped ceramic products characterised by their composition {
C04B35/117 - Composites
C04B41/0027 - {Ion-implantation, ion-irradiation or ion-injection}
C04B41/0054 - {Plasma-treatment, e.g. with gas-discharge plasma}
C04B41/009 - {characterised by the material treated}
C04B41/5001 - {with carbon or carbonisable materials}
C04B41/5116 - {Ag or Au}
C04B41/5133 - {with a composition mainly composed of one or more of the refractory metals}
C04B41/80 - of only ceramics

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C14/325 - {Electric arc evaporation}
C23C14/48 - Ion implantation

G - PHYSICS G11 - INFORMATION STORAGE G11B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B33/10 - Indicating arrangements
G11B5/10 - Structure or manufacture of housings or shields for heads
G11B5/187 - Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium
G11B5/255 - comprising means for protection against wear {
G11B5/40 - Protective measures on heads, e.g. against excessive temperature
G11B5/6005 - {Specially adapted for spacing from a rotating disc using a fluid cushion}

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DOE Contract Number:: AC03-76SF00098

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: surface; treatment; magnetic; recording; heads; modification; plasma; immersion; implantation; deposition; disclosed; method; carried; vacuum; metallic; carbon; cathode; operating; gun; long-pulse; mode; biasing; substrate; holder; pulses; negative; voltage; direct; recoil; combined; modify; near-surface; regions; head; processing; times; modified; atomically; mixed; improves; smoothness; hardness; enhances; tribological; characteristics; conditions; contact-start-stop; continuous; sliding; results; obtained; maintaining; original; tolerances; negative voltage; processing time; substrate holder; surface modification; surface region; magnetic recording; plasma gun; near-surface regions; surface treatment; surface smoothness; surface deposition; surface deposit; near-surface region; recording heads; pulse mode; surface regions; plasma immersion; /427/

Citation Formats


                    Komvopoulos, Kyriakos, Brown, Ian G, Wei, Bo, Anders, Simone, Anders, Andre, and Bhatia, Singh C. Surface treatment of magnetic recording heads.  United States: N. p., 1995. 
        Web.

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                    Komvopoulos, Kyriakos, Brown, Ian G, Wei, Bo, Anders, Simone, Anders, Andre, & Bhatia, Singh C. Surface treatment of magnetic recording heads.  United States.

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                    Komvopoulos, Kyriakos, Brown, Ian G, Wei, Bo, Anders, Simone, Anders, Andre, and Bhatia, Singh C. Sun .  
        "Surface treatment of magnetic recording heads".  United States.  https://www.osti.gov/servlets/purl/870209.

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@article{osti_870209,

  title        = {Surface treatment of magnetic recording heads},

  author       = {Komvopoulos, Kyriakos and Brown, Ian G and Wei, Bo and Anders, Simone and Anders, Andre and Bhatia, Singh C},

  abstractNote = {Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1995},

  month        = {1}

}

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Works referenced in this record:

Plasma synthesis of metallic and composite thin films with atomically mixed substrate bonding
journal, January 1993

Brown, I. G.; Anders, A.; Anders, S.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 80-81
https://doi.org/10.1016/0168-583X(93)90782-2

Macroparticle‐free thin films produced by an efficient vacuum arc deposition technique
journal, September 1993

Anders, Simone; Anders, André; Brown, Ian
Journal of Applied Physics, Vol. 74, Issue 6
https://doi.org/10.1063/1.354431

Novel metal ion surface modification technique
journal, April 1991

Brown, I. G.; Godechot, X.; Yu, K. M.
Applied Physics Letters, Vol. 58, Issue 13
https://doi.org/10.1063/1.104318

Joining of Metal Films to Carbon-Carbon Composite Material by Metal Plasma Immersion Ion Implantation
journal, January 1993

Anders, André; Anders, Simone; Brown, Ian G.
MRS Proceedings, Vol. 314
https://doi.org/10.1557/PROC-314-205

Low Energy Ion Implantation / Deposition as a Film Synthesis and Bonding Tool
journal, January 1993

Anders, André; Anders, Simons; Brown, Ian G.
MRS Proceedings, Vol. 316
https://doi.org/10.1557/PROC-316-833

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Title: Surface treatment of magnetic recording heads

Abstract

Citation Formats

Plasma synthesis of metallic and composite thin films with atomically mixed substrate bonding journal, January 1993

Macroparticle‐free thin films produced by an efficient vacuum arc deposition technique journal, September 1993

Novel metal ion surface modification technique journal, April 1991

Joining of Metal Films to Carbon-Carbon Composite Material by Metal Plasma Immersion Ion Implantation journal, January 1993

Low Energy Ion Implantation / Deposition as a Film Synthesis and Bonding Tool journal, January 1993

Plasma synthesis of metallic and composite thin films with atomically mixed substrate bonding
journal, January 1993

Macroparticle‐free thin films produced by an efficient vacuum arc deposition technique
journal, September 1993

Novel metal ion surface modification technique
journal, April 1991

Joining of Metal Films to Carbon-Carbon Composite Material by Metal Plasma Immersion Ion Implantation
journal, January 1993

Low Energy Ion Implantation / Deposition as a Film Synthesis and Bonding Tool
journal, January 1993