Fabrication of Flyable Perpendicular Discrete Track Media

Author

Moneck, Matthew T. ; Zhu, Jian-Gang ; Che, Xiaodong ; Tang, Yawshing ; Lee, Hyung Jai ; Zhang, Shuyu ; Moon, Ki-Seok ; Takahashi, Nobuyuki

Author_Institution

Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2127

Lastpage

2129

Abstract

Discrete track media offers many potential recording advantages over conventional continuous media in hard disk drives. In this study, we present a novel fabrication process for discrete track perpendicular magnetic media via electron beam lithography, ion milling, and the use of a protective Al sacrificial layer. Physical characterization of the media confirms the process is able to produce patterned tracks with no damage to the media. Spin stand analysis verifies the disks are flyable and capable of recording sharp transitions without any degradation in the magnetic signal

Keywords

aluminium; disc drives; electron beam lithography; magnetic disc storage; perpendicular magnetic recording; Al; electron beam lithography; flyable perpendicular discrete track media; hard disk drive; ion milling; protective sacrificial layer; spin stand analysis; Disk recording; Electron beams; Fabrication; Hard disks; Lithography; Magnetic analysis; Milling; Perpendicular magnetic recording; Protection; Signal analysis; Discrete track media; electron beam lithography; ion milling; spin stand testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893706

Filename

4202850