Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2006-08-22
2006-08-22
Rickman, Holly (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
Reexamination Certificate
active
07094483
ABSTRACT:
A magnetic storage media comprises a substrate supporting the layer of magnetic media having a tilted C-axis greater than approximately 25° with respect to surface normal and having a magnetic easy axis tilted at an angle at approximately greater than 30° from the substrate surface normal. The media includes an oblique deposited seedlayer structure directing tilted C-axis growth of the magnetic material layer independent of the angle of deposition of the magnetic material layer. The orientation C-axis and the magnetic easy axis of the media may be organized into circumferential or radial patterns on the substrate surface, and additionally may possess azimuthal symmetry.
REFERENCES:
patent: 4395439 (1983-07-01), Kitamoto et al.
patent: 4426265 (1984-01-01), Brunsch et al.
patent: 4950548 (1990-08-01), Furusawa et al.
patent: 5569523 (1996-10-01), Thoma et al.
patent: 2003/0019745 (2003-01-01), Wang et al.
patent: 05280473 (1995-02-01), None
patent: 08298096 (1996-10-01), None
patent: 06131571 (1996-12-01), None
patent: 2002042326 (2002-02-01), None
patent: WO8007250 (1994-06-01), None
Eiji Kita, Kimiteru Tagawa, Masafumi Kamikubota and Akira Tasaki; Magnetic recording media prepared by oblique incidence; Nov. 1981; IEEE Transactions on Magnetics, vol. Mag-17, No. 6.
R. Sugita, N. Echigo, K. Tohma and C. Yamamitsu; Incident angle dependence of recording characteristics of vacuum deposited Co-Cr Films; Sep. 1990, IEEE Transactions on Magnetics, vol. 26, No. 5.
J.P.C. Bernards, G.J.P. van Engelen, C.P.G. Schrauwen, H.A.J. Cramer, S.B. Luitjens; Simulation of the recording process with a VSM on Co-Cr and Co-Ni-O layers deposited at oblique incidence; Sep. 1990; IEEE Transactions on Magnetics, vol. 26, No. 5.
Ki-Seok Moon and Sung-Chul Shin; Dependence of structural and magnetic properties on deposition angle in electron-beam evaporated Co/Pt multilayer thin films; 1996; American Institute of Physics.
Yung-Chieh Hsieh and Sergei Gadetsky; Takao Suzuki; M. Mansuripur; Oblique sputtering of amorphous TbFeCo thin films on glass substrates and the effect of deposition angle on perpendicular magnetic anisotropy; 1997; American Institute of Physics.
R. D. McMichael; C. G. Lee; J. E. Bonevich, P. J. Chen, W. Miller, and W. F. Egelhoff, Jr.; Strong anisotropy in thin magnetic films deposited on obliquely sputtered Ta underlayers; Nov. 1, 2000; Journal of Applied Physics vol. 88, No. 9.
M.J. Hadley, R. Atkinson, R.J. Pollard; Magnetic properties of Co films deposited onto obliquely sputtered Ta underlayers; 2002; Elsevier Science B.V.
M. Cartier, S. Auffret, P. Bayle-Guillemaud, F. Ernult, F. Fettar, and B. Dieny; Influence of deposition angle on the properties of NiO spin-valves; Feb. 1, 2002; American Institute of Physics.
U. F. Zheng and J. P. Wang; Control of the tilted orientation of CoCrPt/Ti thin film media by collimated sputtering; May 15, 2002; American Institute of Physics.
A. Lisfi, J. C. Lodder, H. Wormeester, and B. Poelsema; Reorientation of magnetic anisotropy in obliquely sputtered metallic thin films; 2002; The American Physical Society Physical Review B 66, 174420 (2002).
Anup G. Roy and David E. Laughlin; Effect of seed layers in improving the crystallographic texture of CoCrPt perpendicular recording media; May 15, 2002; Journal of Applied Physics; vol. 91, No. 10.
Kiwamu Tanahashi, Yuzuru Hosoe, Masaaki Futamoto;Magnetic Anisotropy and Microstructure of Obliquely Evaporated Co/Cr Thin Films;Jul. 24, 1995; pp. 265-272.
Y.F. Zheng and J.P. Wang;Control of the Tilted Orientation of CoCrPt/Ti thin film media by collimated sputtering; May 15, 2002; V931 pp. 0007-0009.
M.J. Hadley, R. Atkinson, R.J. Pollard;Magnetic Properties of Co Films Deposited Onto Obliquely Sputtered Ta Underlayers; Jan. 31, 2002.
Dieter Weller and Andreas Moser;Thermal Effect Limits in Ultrahigh-Density Magnetic Recording; Nov. 1999; vol. 35, pp. 4423-4439.
R.D. McMichael, C.G. Lee, J.E. Bonevich, P.J. Chen, W. Miller, and W.F. Egelhoff, Jr;Strong Anisotropy in Thin Magnetic Films Deposited on Obliquely Sputtered Ta Underlayers; vol. 88, No. 9, pp. 5296-5299.0.
A. Hagemeyer, H.J. Richter, H. Hibst, V. Maier and L. Marosi;Crystallographic Texture and Morphology of Obliquely Deposited Co-Cr Magnetic Thin Films on Flexible Polymeric Substrates; Aug. 10, 1993; pp. 199-202.
T. Hikosaka, Y. Tamaka, T. Sonoda, and R. Nishikawa;Cr Underlayer's Effect on the Magnetic and Crystalline Properties of Co Alloy Film; Jun. 1988; vol. 3, No. 6, pp. 423-424.
J.C. Lodder;Magnetic Thin Films for High-Density Recording: 1996; pp. 474-483.
PCT/US03/30489,Notification of Transmittal of the International Search Report or the Declaration, Aug. 2004, pp. 1-3.
PCT/US03/30489,International Search Report, Aug. 2004, pp. 1-4.
McMichael et al.,Strong Anisotropy in Thin Magnetic Films Deposited on Obliquely Sputtered Ta Underlayers, Nov. 2000, pp. 5296-5299.
Klemmer Timothy J.
Pelhos Kalman
Seigler Michael A.
Kinney & Lange , P.A.
Rickman Holly
Seagate Technology LLC
LandOfFree
Magnetic storage media having tilted magnetic anisotropy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic storage media having tilted magnetic anisotropy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic storage media having tilted magnetic anisotropy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3693282