| 发明名称 |
Disk drive measuring fly height by applying a bias voltage to an electrically insulated write component of a head |
| 摘要 |
A disk drive is disclosed comprising a disk, and a slider comprising a head, where the head comprises a write component electrically insulated from the slider. A bias voltage is applied to the write component, and a current flowing between the write component and the disk is measured, wherein the current is indicative of a fly height of the head. |
| 申请公布号 |
US9042208(B1) |
申请公布日期 |
2015.05.26 |
| 申请号 |
US201313794771 |
申请日期 |
2013.03.11 |
| 申请人 |
Western Digital Technologies, Inc. |
发明人 |
Knigge Bernhard E.;Xu Jian;Wang Lisha;Hogg Dennis W. |
| 分类号 |
G11B11/00;G11B21/21 |
主分类号 |
G11B11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A disk drive comprising:
a disk; a slider comprising a head, the head comprising a write component electrically insulated from the slider; and control circuitry operable to:
apply a bias voltage to the write component; andmeasure a current flowing between the write component and the disk, wherein the current is indicative of a fly height of the head. |
| 地址 |
Irvine CA US |
