发明授权
- 专利标题: High-pressure anneal process for integrated circuits
- 专利标题(中): 集成电路的高压退火工艺
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申请号: US10227334申请日: 2002-08-23
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公开(公告)号: US06703326B2公开(公告)日: 2004-03-09
- 发明人: Richard H. Lane , Phillip G. Wald
- 申请人: Richard H. Lane , Phillip G. Wald
- 主分类号: H01L2126
- IPC分类号: H01L2126
摘要:
This invention embodies an improved process for annealing integrated circuits to repair fabrication-induced damage. An integrated circuit is annealed in a pressurized, sealed chamber in which a forming gas comprising hydrogen is present. Pressurization of the chamber reduces the contribution made by the final anneal step to total thermal exposure by increasing the diffusion rate of the hydrogen into the materials from which the integrated circuit is fabricated. Ideally, the forming gas contains, in addition to hydrogen, at least one other gas such as nitrogen or argon that will not react with hydrogen and, thus, reduces the danger of explosion. However, the integrated circuit may be annealed in an ambiance containing only hydrogen gas that is maintained at a pressure greater than ambient atmospheric pressure.
公开/授权文献
- US20030003672A1 High-pressure anneal process for integrated circuits 公开/授权日:2003-01-02
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