Tribological Challenges of Flying Recording Heads Over Unplanarized Patterned Media

Autor:	C. M. Mate, B. Feliss, Run-Han Wang, Xiaoping Bian, O. J. Ruiz, Shi-Ling Wang
Rok vydání:	2012
Předmět:	Optics Materials science Air bearing business.industry Slider Track (disk drive) Patterned media Mechanical engineering Electrical and Electronic Engineering Head disk interface Tribology business Electronic Optical and Magnetic Materials
Zdroj:	IEEE Transactions on Magnetics. 48:4448-4451
ISSN:	1941-0069 0018-9464
DOI:	10.1109/tmag.2012.2205226
Popis:	Here we evaluate some of the problems likely to be encountered for flying magnetic recording heads over unplanarized patterned media. We demonstrate: (i) current air bearing codes developed for flying heads over smooth disks can be extended to patterned surfaces; (ii) the method for detecting contact at the head-disk interfaces within disk drives will likely need to be more sensitive for unplanarized patterned media; and (iii) the disk lubricant is more likely to be picked up on a head slider surface when flying over patterned surfaces. While our experiments and simulations were carried for discrete track media (DTM), we also discuss the implications for future bit patterned media (BPM) technology programs and possible solutions to these tribological problems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::15adeb21d6ab96a8c46b61276feecee5 https://doi.org/10.1109/tmag.2012.2205226 Zobrazit plný text záznamu