A new laser texturing technique for high performance magnetic disk drives

IEEE Transactions on Magnetics

Volumn 31, Issue 6, 1995, Pages 2946-2951

  Baumgart, P ^a   Krajnovich, D J ^a   Nguyen, T A ^a   Tam, A C ^a  

^a IBM ALMADEN RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DIFFRACTION; LASER BEAMS; LENSES; MICROSCOPIC EXAMINATION; NEODYMIUM LASERS; Q SWITCHED LASERS; YTTRIUM COMPOUNDS;

AIR BEARING SURFACE; LASER TEXTURE TECHNIQUE; MAGNETIC DISK DRIVES; SOMBRERO GEOMETRY;

MAGNETIC DISK STORAGE;

EID: 0029403518     PISSN: 00189464     EISSN: 19410069     Source Type: Journal    
DOI: 10.1109/20.490199     Document Type: Article

References (20)

1. G. Herziger and E. W. Kreutz, “Fundamentals of laser micromachining of metals,” in Laser Processing and Diagnostics, edited by D. Bauerle, Berlin: Springer-Verlag, 1984, p. 90.
2. A. I. Korotchenko, A. I. Pchelintsev, A. A. Samokhin, and A. V. Sidorin, “Formation of annular relief on the surface of a metal after exposure to a strong energy pulse,” Sov. Phys. Tech. Phys., vol. 32, pp. 99–100, 1987.
3. M. I. Cohen, “Material Processing,” in Laser Handbook, vol. 2, edited by F. T. Arrechi and E. O. Schulz-Dubois, Amsterdam: North Holland, 1972, p. 1635.
4. H. K. Tonshoff, M. Sturmer, L. Overmeyer, and F. von Alvensleben, “Laser texturing of technical surfaces,” Laser and Optoetectronik, vol. 25, pp. 56–61, 1993.
5. M. Ito, T. Shinohara, K. Yanagi, and K. Tanaka, “Influence of surface texture of a thin-film rigid disk on frictional properties at the head-disk interface,” IEEE Trans. Mag., vol. 26, pp. 2502–2504, 1990.
6. A. C. Tam, M. C. Chuang, D. C. Cheng, and A. Wu, “Disk with patterned overcoat and flat magnetic layer,” IBM Tech. Disci. Bull, vol. 32, No. 5B, p. 264, 1989.
7. M. I. Aronoff and M. McNeil, “Textured air bearing surface,” U.S. Patent 5,079,657, January 7, 1992.
8. R. Y. Ranjan and D. N. Lambeth, “Process for manufacturing selectively textured magnetic recording media,” U.S. Patent 5,108,781, April 28, 1992;, “Selectively textured magnetic recording media,” U.S. Patent 5,062,021, October 29, 1991.
9. R. Ranjan, D. N. Lambeth, M. Tromel, P. Goglia, and Y. Li, “Laser texturing for low-flying-height media,” J.Appl.Phys., vol. 69, pp. 5745–5747, 1991.
10. See, for example: J. F. Young, J. S. Preston, H. M. van Driel, and J. E. Sipe, “Laser-induced periodic surface structure. II. Experiments on Ge, Si, Al, and brass,” Phys. Rev., vol. B27, pp. 1155–1172, 1983; Z. Guosheng, P. M. Fauchet, and A. E. Siegman, “Growth of spontaneous periodic surface structures on solids during laser illumination,” Phys. Rev., vol. B26, pp. 5366–5381, 1982.
11. N. R. Isenor, “CO2 laser-produced ripple patterns on NixP1−x surfaces,” Appl. Phys. Lett., vol. 31, pp. 148–150, 1977.
12. V. N. Tokarev and V. I. Konov, “Suppression of thermocapillary waves in laser melting of metals,” J.Appl.Phys., vol. 76, pp. 800–805, 1994.
13. T. D. Bennett, C. P. Grigoropoulos, and D. J. Krajnovich, “Near-threshold laser sputtering of gold,” J.Appl.Phys., vol. 77, pp. 849–864, 1995.
14. F. Pearlstein, “Electroless plating,” in Modern Electroplating, Third edition, edited by F. A. Lowenheim, New York: Wiley, 1971, pp. 710–730; C. R. Shipley, Jr., “Historical highlights of electroless plating,” Plating Surf. Finish., vol. 71, pp. 92–99, 1984.
15. A. Szasz, D. J. Fabian, Z. Paal, and J. Kojnok, “Chemical mechanisms in electroless deposition. A study on the role of hydrogen in layer formation,” J. Non-Cryst. Solids, vol. 103, pp. 21–27, 1988.
16. P. S. Kumar and P. K. Nair, “Effect of phosphorus content on the relative proportions of crystalline and amorphous phases in electroless NiP deposits,” J. Mat. Sci. Lett., vol. 13, pp. 671–674, 1994.
17. E. Bredael, B. Blanpain, J. P. Celis, and J. R. Roos, “On the amorphous and crystalline state of electrodeposited nickel-phosphorus coatings,” J. Electrochem. Soc., vol. 141, pp. 294–299, 1994.
18. K. Lu, J. T. Wang, and W. D. Wei, “Comparison of properties of nanocrystalline and amorphous NiP alloys,” J. Phys. D: Appl. Phys., vol. 25, pp. 808–812, 1992.
19. S. W. McKnight and A. K. Ibrahim, “Infrared optical properties of amorphous nickel-phosphorus alloys,” Phys. Rev., vol. B29, pp. 6570–6575, 1984.
20. Y. Waseda and J. M. Toguri, “The structure of molten nickel-phosphorus alloys,” Z. Naturforsch., vol. 32a, pp. 1506–1511, 1977.