发明名称 |
Textured-metastable aluminum alloy sputter targets and method of manufacture |
摘要 |
An aluminum alloy sputter target having a sputter target face for sputtering the sputter target is disclosed. The sputter target face has a textured-metastable grain structure. The textured-metastable grain structure has a grain orientation ratio of at least 35 percent (200) orientation. The textured-metastable grain structure is stable during sputtering of the sputter target. The textured-metastable grain structure has a grain size of less than 5 mum. The method forms aluminum alloy sputter targets by first cooling an aluminum alloy target blank to a temperature of less than -50° C. Then deforming the cooled aluminum alloy target blank introduces plastic strain into the target blank and reduces the grain size of the grains to form a textured-metastable grain structure. Finally, finishing the aluminum alloy target blank forms a finished sputter target that maintains the textured-metastable grain structure of the finished sputter target.
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申请公布号 |
US6942763(B2) |
申请公布日期 |
2005.09.13 |
申请号 |
US20030411212 |
申请日期 |
2003.04.11 |
申请人 |
PRAXAIR S.T. TECHNOLOGY, INC. |
发明人 |
PERRY ANDREW C.;GILMAN PAUL S.;VAN DEN SYPE JAAK |
分类号 |
C22F1/057;C22C21/12;C22F1/00;C22F1/04;C23C14/34;(IPC1-7):C23C14/34;B21H1/22 |
主分类号 |
C22F1/057 |
代理机构 |
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代理人 |
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主权项 |
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