公开(公告)号：US10002632B2

公开(公告)日：2018-06-19

申请号：US13722632

申请日：2012-12-20

Applicant: Seagate Technology LLC

Inventor： Bo Bian ,  Weikang Shen ,  Pengcheng Li ,  Miaogen Lu ,  Connie Chunling Liu ,  Thomas Nolan

IPC: G11B5/66 ,  G11B5/82

CPC classification number: G11B5/82 ,  G11B5/66

Abstract: A perpendicular recording medium with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure is formed on a base substrate and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.

公开(公告)号：US09984713B1

公开(公告)日：2018-05-29

申请号：US15615782

申请日：2017-06-06

Applicant: Seagate Technology LLC

Inventor： Antonio Javier Zambano ,  Connie Chunling Liu ,  Xiaoding Ma ,  ZhaoHui Fan ,  Jerry Kueirweei Chour

IPC: G11B5/716 ,  G11B5/65 ,  G11B5/66 ,  G11B5/706 ,  G11B5/712 ,  G11B5/73 ,  G11B5/852 ,  G11B5/82

CPC classification number: G11B5/716 ,  G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  G11B5/70621 ,  G11B5/70626 ,  G11B5/712 ,  G11B5/7325 ,  G11B5/82 ,  G11B5/852

Abstract: An apparatus is disclosed. The apparatus includes a storage layer, a first write layer, and a second write layer. The first write layer is disposed over the storage layer. The second write layer is disposed over the first write layer. The anisotropy field and magnetization associated with the second write layer at writing temperature is greater than anisotropy field and magnetization associated with the first write layer at the writing temperature.

公开(公告)号：US20140178714A1

公开(公告)日：2014-06-26

申请号：US14192641

申请日：2014-02-27

Applicant: Seagate Technology LLC

Inventor： Zhong Stella Wu ,  Samuel Dacke Harkness, IV ,  Mariana Rodica Munteanu ,  Qixu Chen ,  Connie Chunling Liu

IPC: G11B5/65

CPC classification number: G11B5/656 ,  G11B5/65 ,  G11B5/66 ,  G11B5/82

Abstract: A perpendicular magnetic recording medium having a dual-layer magnetic film is disclosed. The bottom layer is completely exchange decoupled, and the top layer contains a certain amount of exchange coupling optimized for recording performance. Preferably, the bottom magnetic layer contains stable oxide material (for example, TiO2) and other non-magnetic elements (for example, Cr). A method of manufacturing the media is also disclosed.

Abstract translation: 公开了具有双层磁性膜的垂直磁记录介质。 底层完全交换去耦，顶层包含一定量的交换耦合，用于记录性能优化。 优选地，底部磁性层包含稳定的氧化物材料（例如TiO 2）和其它非磁性元件（例如，Cr）。 还公开了制造介质的方法。

公开(公告)号：US20130280556A1

公开(公告)日：2013-10-24

申请号：US13919983

申请日：2013-06-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Li Tang ,  Weilu Xu ,  Youfeng Zheng ,  Shanghsien Rou ,  Connie Chunling Liu ,  Jianhua Xue ,  Li-Lien Lee ,  Thomas P. Nolan

IPC: G11B5/31 ,  G11B5/127

CPC classification number: G11B5/3153 ,  G11B5/1276 ,  G11B5/1278 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/7325 ,  Y10T428/115

Abstract: Provided herein, is an apparatus that includes a nonmagnetic substrate having a surface; and a plurality of overlying thin film layers forming a layer stack on the substrate surface. The layer stack includes a magnetically hard perpendicular magnetic recording layer structure and an underlying soft magnetic underlayer (SUL), wherein the sum of a magnetic thickness of the layer stack is a magnetic thickness of up to about 2 memu/cm̂2.

Abstract translation: 本文提供了一种包括具有表面的非磁性基板的装置; 以及在衬底表面上形成层叠的多个上覆薄膜层。 层叠层包括磁性硬的垂直磁记录层结构和底层软磁性底层（SUL），其中层叠层的磁性厚度之和是至多约2emu / cm 2的磁性厚度。

公开(公告)号：US20130163118A1

公开(公告)日：2013-06-27

申请号：US13722632

申请日：2012-12-20

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Bo Bian ,  Weikang Shen ,  Pengcheng Li ,  Miaogen Lu ,  Connie Chunling Liu ,  Thomas Nolan

IPC: G11B5/82

CPC classification number: G11B5/82 ,  G11B5/66

Abstract: A perpendicular recording medium with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure is formed on a base substrate and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.

Abstract translation: 具有增强磁稳定性的垂直记录介质。 根据一些实施例，在基底基板上形成多层记录结构，并且适于将磁性位序列磁性地存储在基本垂直于所述层的畴中。 在多层记录基板上形成薄磁稳定层，以磁化稳定记录结构的上部。