Laser texturing of magnetic recording medium using a crystal mat

Details Laser texturing of magnetic recording medium using a crystal mat Laser texturing of magnetic recording medium using a crystal mat

1996-05-09

1998-07-21

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

21912175, 264400, B23K 2602

Patent

active

057837970

ABSTRACT:
A magnetic recording medium is provided with a surface texture generated by a pulsed laser light beam passed through a lens focusing system and then through a crystal material. The use of a crystal material enables the formation of a topography comprising precise protrusions with accurately controlled spacings therebetween.

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Baumgart et al. "A New Laser Texturing Technique for High Performance Magnetic Disk Drives," IEEE Transactions on Magnetics, vol. 31, No. 6, pp. 2946-2951, Nov. 1995.

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