High Density Perpendicular Recording With Wrap-Around Shielded Writer

被引：15

作者：

Bai, Daniel Z. ^{[1
]}

Wu, Yan ^{[1
]}

Dovek, Moris ^{[1
]}

Liu, Yue ^{[1
]}

Zhang, Xiaofeng ^{[1
]}

Liu, Kowang ^{[1
]}

Takano, Kenichi ^{[1
]}

Zhou, Yuchen ^{[1
]}

机构：

[1] Headway Technol Inc, Milpitas, CA 95035 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 03期

关键词：

Adjacent track erasure; far track erasure; perpendicular recording; side shield; wrap-around shield; TRACK ERASURE; SQUARE INCH; DESIGN;

D O I：

10.1109/TMAG.2009.2034753

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Wrap-around shielded writers combining both trailing shield and side shield have been studied both by modeling and by experiments. WAS design is demonstrated to have superior performance over its predecessor trailing shielded writer in perpendicular magnetic recording systems. While maintaining the down-track performance, the side shield significantly reduces the side fringing field, thus enabling high track densities. In this paper, various aspects of WAS design are investigated. Issues unique to side shielded design such as near and far track erasure are also discussed in detail. An outlook of future PMR writer and recording systems design is presented at the end.

引用

收藏

页码：722 / 729

页数：8

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