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

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

Maria Yu Lin, Yong Liang Guan, Moulay Rachid Elidrissi, Kheong Sann Chan, Kwaku Eason, Hongtao Wang, Joel K. W. Yang, Mohamed Asbahi, Naganivetha Thiyagarajah, Vivian Ng, …
IEEE transactions on magnetics, Vol.49(7), pp.3624-3627
01/07/2013

Abstract

Algorithm design and analysis Bit-patterned media (BPM) hard disk drives (HDDs) Jitter Lattices Magnetic heads magnetic recording Media Micromagnetics Optimization signal processing
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.

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