发明授权
- 专利标题: Structure and method for self aligned vertical plate capacitor
- 专利标题(中): 自对准立板电容器的结构和方法
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申请号: US11616955申请日: 2006-12-28
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公开(公告)号: US07670921B2公开(公告)日: 2010-03-02
- 发明人: Anil K. Chinthakindi , Douglas D. Coolbaugh , Timothy J. Dalton , Ebenezer E. Eshun , Jeffrey P. Gambino , Anthony K. Stamper , Richard P. Volant
- 申请人: Anil K. Chinthakindi , Douglas D. Coolbaugh , Timothy J. Dalton , Ebenezer E. Eshun , Jeffrey P. Gambino , Anthony K. Stamper , Richard P. Volant
- 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: Cantor Colburn LLP
- 代理商 Katherine Brown
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763
摘要:
A method of forming a metal-insulator-metal (MIM) capacitor includes forming a first planar dielectric layer with a first metallization layer therein; forming a first passivation layer on top thereof; forming a planar conductive layer above the first passivation layer; patterning and selectively removing the conductive layer up to the first passivation layer in designated areas to form a set of conductive features; patterning and conformally coating the set of conductive features and the exposed first passivation layer with a high strength dielectric coating; disposing a second dielectric layer above the first passivation layer and enclosing the set of conductive features; patterning and selectively removing portions of the second substrate to form channels and trenches; performing a dual-Damascene process to form a second metallization layer in the trenches and channels and to form an upper conductive surface above the high strength dielectric coating.
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