Title :
Elliptical-shaped beam laser texturing on magnetic disks
Author :
Pan, Z. ; Xuan, J. ; Thanh Nguyen ; Yang, S. ; Shih, C.
Author_Institution :
Seagate Recording Media, Milpitas, CA, USA
Abstract :
Summary form only given. We report laser texturing on NiP/Al magnetic disks using an elliptical-shaped Gaussian beam. The elliptical-shaped laser beam creates elongated streamline bumps on the disk surface. These elliptical-shaped bumps have a smooth profile along their elongated axis. An improved tribological performance has been observed for the textured landing zone using an elliptical-shaped laser beam.
Keywords :
hard discs; laser materials processing; stiction; surface texture; surface treatment; wear resistance; NiP; NiP-Al; NiP/Al disks; conjugated anamorphic prism pair; disk surface; elliptical-shaped Gaussian beam; elliptical-shaped beam laser texturing; elongated axis; elongated streamline bumps; magnetic disks; smooth profile; textured landing zone; tribological performance; wear durability; Atomic force microscopy; Atomic measurements; Circuits; Force measurement; Laser beams; Optical pulses; Shape; Thermal expansion; Tunneling; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676587
