能量辅助磁记录的直流电流路径优化

2022 IEEE 33rd Magnetic Recording Conference (TMRC) Pub Date : 2022-08-01 DOI:10.1109/TMRC56419.2022.9918540

M. A. Bashir, Anna Zheng, A. Goncharov, P. V. Heijden, Suping Song, Ya-Jun Wei, T. Lam, R. Shi, Lijie Guan

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引用次数: 1

摘要

能量辅助垂直磁记录(ePMR)技术被西部数据于2020年用于出货18 - 20tb硬盘驱动器(HDD)，被认为是未来近线产品的技术[1]-[2]。ePMR技术中使用的磁头利用主极(MP)和后侧屏蔽(TS)作为引线结构，通过后侧间隙区域内的小堆栈连接，实现直流电流的传输。磁写入器体积内的直流电流有助于改善磁通抖动[3]。

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DC Current Path Optimization for Energy-Assisted Magnetic Recording

Energy assisted perpendicular magnetic recording (ePMR) technology was utilized to ship 18–20 TB hard disk drive (HDD) by Western Digital in 2020 and is considered to be the technology for the future nearline products [1]–[2]. Magnetic writer used in ePMR technology carry the DC current by utilizing main pole (MP) and trailing side shield (TS) as lead structure connected through a small stack inside the trailing side gap region. DC current flow inside the magnetic writer volume helps improve flux jitter [3].

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2022 IEEE 33rd Magnetic Recording Conference (TMRC)

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