| 发明名称 |
Touchdown sensor having a more stable crystal structure for use in hard disk drives |
| 摘要 |
A method and system for providing a touchdown sensor for use in disk drive is described. The touchdown sensor includes a seed layer, a sensor layer on the seed layer, and a capping layer. The sensor layer includes NiFe. In some embodiments, at least one of the seed layer and the capping layer promote stability and performance of the sensor layer. |
| 申请公布号 |
US9047902(B1) |
申请公布日期 |
2015.06.02 |
| 申请号 |
US201113160752 |
申请日期 |
2011.06.15 |
| 申请人 |
Western Digital (Fremont), LLC |
发明人 |
Yu Chengtao R.;Li Yunfei;Ding Yunfei;Hong Ying |
| 分类号 |
G11B5/39;G11B5/60;G11B5/31 |
主分类号 |
G11B5/39 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A touchdown sensor comprising:
a seed layer consisting of Ta; a sensor layer including Ni on the seed layer, the sensor layer being temperature sensitive and adjoining the seed layer, the sensor layer being configured to determine touchdown based on a change in a temperature of the sensor layer; and a capping layer on the sensor layer, the capping layer adjoining the sensor layer, consisting of Ta; wherein at least a portion of at least one of the seed layer and the capping layer is amorphous. |
| 地址 |
Fremont CA US |
