Laser texturing of magnetic recording medium using a crystal material

U.S. Patent Number: 5783797

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.

Inventors: Xuan; Jialuo Jack (Milpitas, CA), Chen; Ga-Lane (Fremont, CA), Li; Wenjun (San Jose, CA)

Assignee: Seagate Technology, Inc. (Scotts Valley, CA)

Application Number: 08/647,407

Issued: 1998-07-21

Expired: 2006-07-21

Classes: 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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