Title :
Some tribology and mechanics issues for 100-Gb/in2 hard disk drive
Author :
Bogy, David B. ; Fong, Walton ; Thornton, Brian H. ; Zhu, Hong ; Gross, Hany M. ; Bhatia, C.Singh
Author_Institution :
Dept. of Mech. Eng., California Univ., Berkeley, CA, USA
fDate :
9/1/2002 12:00:00 AM
Abstract :
The requirements of the mechanical head-disk interface design for a magnetic recording hard disk drive with a data density of 100 Gb/in2. are presented. The research toward achieving this design in the Computer Mechanics Laboratory in collaboration with the National Storage Industry Consortium is summarized: 1) optimization of a 5-nm-flying-height ABS design; 2) experimental and numerical simulations of slider dynamics to reduce the flying height modulation; 3) tribological studies of sputtered, nitrogenated carbon (CNx) overcoats and their interaction with ZDOL lubricant; and 4) optimal strain sensor placement on an instrumented suspension for suppression of track misregistration.
Keywords :
disc drives; hard discs; lubrication; mechanical contact; strain sensors; wear resistant coatings; 100-Gb/in2 hard disk drive; 5 nm; 5-nm-flying-height ABS design; CNx; ZDOL lubricant; data density; flying height modulation; magnetic recording hard disk drive; mechanical head-disk interface design; mechanics issues; nano-scratch tests; numerical simulations; optimal strain sensor placement; slider air bearing surface design; slider dynamics; sputtered CNx overcoats; track misregistration suppression; tribology issues; wear durability; Capacitive sensors; Collaboration; Computer industry; Design optimization; Hard disks; Laboratories; Lubricants; Magnetic recording; Numerical simulation; Tribology;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.801788
