发明申请
- 专利标题: METHOD FOR FORMING RUTHENIUM METAL CAP LAYERS
- 专利标题(中): 形成金属箔层的方法
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申请号: US12240894申请日: 2008-09-29
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公开(公告)号: US20100081274A1公开(公告)日: 2010-04-01
- 发明人: Tadahiro Ishizaka , Shigeru Mizuno , Frank M. Cerio, JR.
- 申请人: Tadahiro Ishizaka , Shigeru Mizuno , Frank M. Cerio, JR.
- 申请人地址: JP Tokyo
- 专利权人: Tokyo Electron Limited
- 当前专利权人: Tokyo Electron Limited
- 当前专利权人地址: JP Tokyo
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763
摘要:
A method is provided for integrating ruthenium (Ru) metal deposition into manufacturing of semiconductor devices to improve electromigration and stress migration in copper (Cu) metal. Embodiments of the invention include treating patterned substrates containing metal layers and low-k dielectric materials with NHx (x≦3) radicals and H radicals to improve selective formation of ruthenium (Ru) metal cap layers on the metal layers relative to the low-k dielectric materials.
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