发明名称 |
METHOD AND APPARATUS FOR RECYCLING PROCESS FLUIDS |
摘要 |
<p>A method and apparatus for recycling a process fluid from a drain of a semiconductor process tool. The process fluid may be an acidic cobalt solution or an electroless cobalt solution used in a semiconductor process step to prevent electromigration in copper interconnects. The used process fluid is collected from the tool drain and recycled back to the tool inlet if a condition of the fluid is within a predetermined range. Otherwise, the used process fluid is drained from the system. The system may also operate in a bleed and feed mode where a portion of the used process fluid is periodically drained from the system.</p> |
申请公布号 |
EP2007467(A2) |
申请公布日期 |
2008.12.31 |
申请号 |
EP20070754628 |
申请日期 |
2007.04.03 |
申请人 |
AIR LIQUIDE ELECTRONICS U.S. LP |
发明人 |
EDWARDS, DAVID, PAUL |
分类号 |
G05D11/08;B01F3/08;B01F15/04;C23F1/00;G05D11/13;H01L21/30 |
主分类号 |
G05D11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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