| 发明名称 |
Ion milled punch and die for coining disc drive motor bearing surfaces |
| 摘要 |
Punches or dies are manufactured using a photolithographic process and an ion milling or ion beam etch process. The punches or dies are used for coining bearing surfaces in hydrodynamic bearing arrangements in computer disc drive spindle motor assemblies.
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| 申请公布号 |
US2003182982(A1) |
申请公布日期 |
2003.10.02 |
| 申请号 |
US20030400986 |
申请日期 |
2003.03.27 |
| 申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
SIMPSON EDWARD M.;NGUYEN THE N.;CLARK WESLEY R. |
| 分类号 |
B21J5/12;B21J13/02;B21K5/00;B23P15/24;F16C17/04;F16C33/10;G11B19/20;(IPC1-7):B21J13/03 |
主分类号 |
B21J5/12 |
| 代理机构 |
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代理人 |
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