| United States Patent | 5,783,797 |
| Xuan, et. al. | Jul. 21, 1998 |
| Inventors: | Xuan; Jialuo Jack (Milpitas, CA); Chen; Ga-Lane (Fremont, CA); Li; Wenjun (San Jose, CA). |
| Assignee: | Seagate Technology, Inc. (Scotts Valley, CA). |
| Appl. No.: | 647,407 |
| Filed: | May 9, 1996 |
| Intl. Cl. : | B23K 26/02 |
| Current U.S. Cl.: | 219/121.69; 219/121.75; 264/400 |
| Field of Search: | 219/121.73, 121.75, 121.69; 427/554, 558, 559, 596; 264/400, 409, 427, 430, 482; 425/174.4; 369/112, 44.37 |
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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.
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.