Optimization of Bit-Patterned Media Recording (BPMR) System via Tolerance Design

Author

Lin, Michael Y. ; Elidrissi, Moulay Rachid ; Kheong Sann Chan ; Eason, Kwaku ; Hongtao Wang ; Yang, Joel K. W. ; Asbahi, M. ; Thiyagarajah, Naganivetha ; Ng, Vincent ; Yong Liang Guan

Author_Institution

Data Storage Inst. (DSI), Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

3624

Lastpage

3627

Abstract

Bit-patterned media recording (BPMR) is a promising approach to push back the onset of the superparamagnetic limit faced by conventional granular media recording (CGMR). Previous work in this area has characterized the position jitter and size jitter from fabricated media at recording densities ranging from 0.6 Tera dots per square inch (Tdpsi) to 2.9 Tdpsi, and the characterizations were used to predict expected densities from the BPMR system. In this work, we investigate the impact of a few critical parameters towards the final performance of the BPMR system in terms of the written-in-error (WIE) rate.

Keywords

jitter; magnetic recording; superparamagnetism; bit-patterned media recording system optimization; bit-patterned media recording system performance; conventional granular media recording; critical parameters; position jitter; recording densities; size jitter; superparamagnetic limit onset; tolerance design; written-in-error rate; Algorithm design and analysis; Jitter; Lattices; Magnetic heads; Media; Micromagnetics; Optimization; Bit-patterned media (BPM); hard disk drives (HDDs); magnetic recording; optimization; signal processing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2243705

Filename

6559296