- 专利标题: High Work Function, Manufacturable Top Electrode
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申请号: US13727962申请日: 2012-12-27
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公开(公告)号: US20140187016A1公开(公告)日: 2014-07-03
- 发明人: Sandra G. Malhotra , Hanhong Chen , Wim Deweerd , Arthur Gevondyan , Hiroyuki Ode
- 申请人: INTERMOLECULAR, INC. , ELPIDA MEMORY, INC
- 申请人地址: JP Tokyo US CA San Jose
- 专利权人: ELPIDA MEMORY, INC ,INTERMOLECULAR, INC.
- 当前专利权人: ELPIDA MEMORY, INC ,INTERMOLECULAR, INC.
- 当前专利权人地址: JP Tokyo US CA San Jose
- 主分类号: H01L49/02
- IPC分类号: H01L49/02
摘要:
Provided are MIM DRAM capacitors and methods of forming thereof. A MIM DRAM capacitor may include an electrode layer formed from a high work function material (e.g., greater than about 5.0 eV). This layer may be used to reduce the leakage current through the capacitor. The capacitor may also include another electrode layer having a high conductivity base portion and a conductive metal oxide portion. The conductive metal oxide portion serves to promote the growth of the high k phase of the dielectric layer.
公开/授权文献
- US09224878B2 High work function, manufacturable top electrode 公开/授权日:2015-12-29
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