发明授权
- 专利标题: Method of making conductor contacts having enhanced reliability
- 专利标题(中): 制造具有增强的可靠性的导体接触的方法
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申请号: US11306668申请日: 2006-01-06
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公开(公告)号: US07480990B2公开(公告)日: 2009-01-27
- 发明人: John A. Fitzsimmons , William J. Cote , Nancy A. Greco , Thomas H. Ivers , Steven Moskowitz
- 申请人: John A. Fitzsimmons , William J. Cote , Nancy A. Greco , Thomas H. Ivers , Steven Moskowitz
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Scully, Scott, Murphy & Presser, P.C.
- 代理商 H. Daniel Schnurmann
- 主分类号: H05K3/02
- IPC分类号: H05K3/02 ; H01L21/302
摘要:
Methods for forming conductor contacts provide for etching through a capping layer located upon a conductor contact region within a substrate. A first pair of methods provide for etching through at least a lower thickness of the capping layer with other than a reactive ion etch to provide an exposed conductor contact region. A partially overlapping second pair of methods provides for converting at least an upper thickness of the capping layer to a converted material layer that is removed incident to providing an exposed conductor contact region. As adjunct to any of the methods, a liner layer is formed and located upon the exposed conductor contact region in absence of an undesirable reactive environment.
公开/授权文献
- US20070161290A1 CONDUCTOR CONTACTS WITH ENHANCED RELIABILITY 公开/授权日:2007-07-12
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