...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Magnetics, IEEE Transactions on >Bit-Patterned Magnetic Recording: Theory, Media Fabrication, and Recording Performance
【24h】

Bit-Patterned Magnetic Recording: Theory, Media Fabrication, and Recording Performance

机译：位图磁记录：理论，媒体制作和记录性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Bit-patterned media (BPM) for magnetic recording provides a route to thermally stable data recording at >1 Tb/in and circumvents many of the challenges associated with extending conventional granular media technology. Instead of recording a bit on an ensemble of random grains, BPM comprises a well-ordered array of lithographically patterned isolated magnetic islands, each of which stores 1 bit. Fabrication of BPM is viewed as the greatest challenge for its commercialization. In this paper, we describe a BPM fabrication method that combines rotary-stage e-beam lithography, directed self-assembly of block copolymers, self-aligned double patterning, nanoimprint lithography, and ion milling to generate BPM based on CoCrPt alloy materials at densities up to 1.6 Td/in. This combination of novel fabrication technologies achieves feature sizes of <10 nm, which is significantly smaller than what conventional nanofabrication methods used in semiconductor manufacturing can achieve. In contrast to earlier work that used hexagonal arrays of round islands, our latest approach creates BPM with rectangular bit cells, which are advantageous for the integration of BPM with existing hard disk drive technology. The advantages of rectangular bits are analyzed from a theoretical and modeling point of view, and system integration requirements, such as provision of servo patterns, implementation of write synchronization, and providing for a stable head–disk interface, are addressed in the context of experimental results. Optimization of magnetic alloy materials for thermal stability, writeability, and tight switching field distribution is discussed, and a new method for growing BPM islands from a specially patterned underlayer—referred to as templated growth- 14;is presented. New recording results at 1.6 Td/in (roughly equivalent to 1.3 Tb/in demonstrate a raw error rate , which is consistent with the recording system requirements of modern hard drives. Extendibility of BPM to higher densities and its eventual combination with energy-assisted recording are explored.
机译：用于磁记录的位模式介质（BPM）提供了一种以> 1 Tb / in的速度进行热稳定数据记录的途径，并规避了与扩展常规颗粒介质技术相关的许多挑战。 BPM不是在随机晶粒的整体上记录一点，而是包括一个排列整齐的光刻图案化的隔离磁岛阵列，每个磁岛存储1位。 BPM的制造被视为对其商业化的最大挑战。在本文中，我们描述了一种BPM的制造方法，该方法结合了旋转阶段电子束光刻技术，嵌段共聚物的定向自组装，自对准双图案化，纳米压印光刻技术和离子铣削以基于密度的CoCrPt合金材料生成BPM。最高1.6 Td / in。这种新颖的制造技术的结合实现了小于10 nm的特征尺寸，这大大小于半导体制造中使用的常规纳米制造方法所能达到的尺寸。与使用圆形岛的六边形阵列的早期工作相比，我们的最新方法创建了具有矩形位单元的BPM，这对于将BPM与现有硬盘驱动器技术集成非常有利。从理论和建模的角度分析了矩形位的优点，并在实验中解决了系统集成要求，例如提供伺服模式，实现写同步以及提供稳定的磁头-磁盘接口。结果。讨论了磁性合金材料在热稳定性，可写性和紧密转换场分布方面的优化，并提出了一种从特殊图案化的底层（称为模板化生长层14）生长BPM岛的新方法。以1.6 Td / in（约等于1.3 Tb / in）的新记录结果表明原始错误率与现代硬盘驱动器的记录系统要求一致。BPM可扩展到更高密度，并最终与能量辅助记录相结合被探索。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号