Bit-Patterned Media on Plastic Tape With Feature Density of 100 Gigadot/in $^{ {2}}$

Author

Arellano, Noel ; Berman, David ; Frommer, Jane ; Imaino, Wayne ; Xin Jiang ; Jubert, Pierre-Olivier ; McClelland, Gary ; Rettner, Charles ; Topuria, Teya

Author_Institution

IBM Res. - Almaden, San Jose, CA, USA

Volume

51

Issue

7

fYear

2015

fDate

Jul-15

Firstpage

1

Lastpage

5

Abstract

A method of producing a bit-patterned media on a flexible substrate using a low-cost, hot nanoimprinting process is investigated. Using a topographic master with features as small as 40 nm, a flexible plastic substrate is patterned with high fidelity. Magnetic material is sputter-deposited onto the patterned substrate to produce a magnetic tape media with densities as high as 100 Gigadot/in². Magnetic recording characteristics of the coated bit-patterned tape is evaluated in an apparatus which slides a recording head on the media with a high-resolution positioning capability.

Keywords

magnetic tape equipment; magnetic thin films; sputter deposition; bit-patterned media; feature density; magnetic material; magnetic recording; magnetic tape media; nanoimprinting process; plastic tape; sputter-deposited; topographic master; Magnetic domains; Magnetic heads; Magnetic recording; Magnetic resonance imaging; Media; Plastics; Substrates; Bit patterned media; Bit-patterned media (BPM); magnetic tape recording; plastic substrate; thermal embossing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2394447

Filename

7017569