发明授权
- 专利标题: Microstructure liner having improved adhesion
- 专利标题(中): 显微组织衬垫具有改进的粘合性
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申请号: US09377329申请日: 1999-08-18
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公开(公告)号: US06380628B2公开(公告)日: 2002-04-30
- 发明人: John A. Miller , Andrew Simon , Jill Slattery , Cyprian E. Uzoh , Yun-Yu Wang
- 申请人: John A. Miller , Andrew Simon , Jill Slattery , Cyprian E. Uzoh , Yun-Yu Wang
- 主分类号: H01L2348
- IPC分类号: H01L2348
摘要:
A damascene structure, such as a conductive line or via, having a liner with a roughened surface between the substrate and the conductive fill and, preferably, a smooth bottom. The substrate underneath the liner may also have a roughened sidewall and smooth bottom. Such a structure provides enhanced adhesion between one or more layers of the damascene structure. The damascene structure may be manufactured by applying a photoresist over a substrate top surface, exposing the photoresist under conditions that create a standing wave in the resist, and developing the photoresist to provide a pattern having the desired roughened or serrated outline. The pattern is transferred into the substrate, the liner is applied over the substrate bottom and sidewalls, and the liner is filled with conductive material. A roughened liner surface may be achieved by applying a partial layer of liner material over the substrate, removing a portion of the partial layer, and repeating the application and removal steps.
公开/授权文献
- US20010019884A1 MICROSTRUCTURE LINER HAVING IMPROVED ADHESION 公开/授权日:2001-09-06
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