Title :
Burnishing of ultrathin carbon overcoat-towards further low glide height [hard disks]
Author :
Zhang, J. ; Lim, Y.M. ; Shi, J.R. ; Wang, J.P.
Author_Institution :
Data Storage Inst., Kent Ridge, Singapore
Abstract :
The buffing process plays an essential role in the production of high-performance magnetic recording drives. The typical manufacturing process for magnetic thin film disks includes both carbon buffing and lubricant buffing. Carbon buffing involves polishing and texturing the carbon surface to create a degree of roughness, while lube buffing is done to ensure that the lubricant is evenly spread over the disk surface. However, not much is known about the tribological issues of this process. In this paper, experimental data of carbon buffing effects on surface roughness and contact angle and lube buffing effects on lubricant bonding and film uniformity are presented. The feasibility of integrating current magnetic hard disk manufacturing processes is also discussed in this paper.
Keywords :
carbon; contact angle; electronic equipment manufacture; hard discs; lubrication; magnetic recording; polishing; surface texture; surface topography; wear resistant coatings; C; carbon buffing; carbon surface polishing; carbon surface texturing; contact angle; evenly spread lubricant; glide height; lube buffing; lubricant buffing; magnetic hard disk manufacturing process integration feasibility; magnetic hard disks; magnetic recording drives; magnetic thin film disk; manufacturing process; surface roughness; tribological issues; ultrathin carbon overcoat burnishing; Burnishing; Hard disks; Lubricants; Magnetic films; Magnetic recording; Manufacturing processes; Production; Rough surfaces; Surface roughness; Surface texture;
Conference_Titel :
Magnetic Recording Conference, 2002. Digest of the Asia-Pacific
Conference_Location :
Singapore
Print_ISBN :
0-7803-7509-2
DOI :
10.1109/APMRC.2002.1037681
