基本信息:
- 专利标题： Multiple Layer FEPT Structure
- 申请号：US15376043 申请日：2016-12-12
- 公开(公告)号：US20170092317A1 公开(公告)日：2017-03-30
- 发明人： Jiaoming Qui , Yonghua Chen , Ganping Ju , Thomas P. Nolan
- 申请人： Seagate Technology LLC
- 专利权人： Seagate Technology LLC
- 当前专利权人： Seagate Technology LLC
- 主分类号： G11B5/85
- IPC分类号： G11B5/85 ; C22C5/04 ; C22F1/14 ; C23C14/16 ; C23C14/34 ; G11B5/851 ; C23C14/22 ; C23C14/28 ; C23C14/58 ; G11B5/65 ; G11B5/73 ; B32B15/01 ; C23C14/35
摘要：
One embodiment described herein is directed to a method involving depositing a seed layer on a substrate, the seed layer comprising A1 phase FePt with a ratio of Pt of Fe greater than 1:1. A main layer is deposited on the seed layer, the main layer comprising A1 phase FePt with a ratio of Pt to Fe of approximately 1:1. A cap layer is deposited on the main layer, the cap layer comprising A1 phase FePt with a ratio of Pt to Fe of less than 1:1. The seed, main and cap layers are annealed to convert the A1 phase FePt to L10 phase FePt having a graded FePt structure of varying stoichimetry from approximately Fe50Pt50 adjacent a lower portion of the structure proximate the substrate to Fe>50Pt
公开/授权文献:
- US09899050B2 Multiple layer FePt structure 公开/授权日：2018-02-20
IPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
| ------G11B5/00 | 借助于记录载体的激磁或退磁进行记录的；用磁性方法进行重现的；为此所用的记录载体 |
| --------G11B5/48 | .磁头相对于记录载体的配置或安装 |
| ----------G11B5/85 | ..用蒸汽沉积法涂一带磁性层支承的 |