发明公开
EP0517368A2 Local interconnect for integrated circuits
失效
Lokalverbindungenfürintegrierte Schaltungen。
- 专利标题: Local interconnect for integrated circuits
- 专利标题(中): Lokalverbindungenfürintegrierte Schaltungen。
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申请号: EP92303974.7申请日: 1992-05-01
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公开(公告)号: EP0517368A2公开(公告)日: 1992-12-09
- 发明人: Chen, Fusen , Liou, Fu-Tai , Dixit, Girish
- 申请人: SGS-THOMSON MICROELECTRONICS, INC.
- 申请人地址: 1310 Electronics Drive Carrollton Texas 75006 US
- 专利权人: SGS-THOMSON MICROELECTRONICS, INC.
- 当前专利权人: SGS-THOMSON MICROELECTRONICS, INC.
- 当前专利权人地址: 1310 Electronics Drive Carrollton Texas 75006 US
- 代理机构: Palmer, Roger
- 优先权: US695583 19910503
- 主分类号: H01L21/90
- IPC分类号: H01L21/90 ; H01L23/485 ; H01L21/3205
摘要:
A method for fabrication of local interconnects in an integrated circuit, and an integrated circuit formed according to the same, is disclosed. According to the disclosed embodiment, a first and a second conductive structure are formed over the integrated circuit. An insulating layer (28) is formed over the integrated. A first photoresist layer is formed over the insulating layer, patterned and developed. The insulating layer is etched to expose selected regions of the first and second conductive structures. A refractory metal layer (30) is formed over the integrated circuit. A barrier layer (32) is formed over the refractory metal layer, and optionally a refractory metal silicide layer (34) is formed over the barrier layer. A second photoresist layer is formed over the barrier layer, patterned and developed. The refractory metal layer and barrier layer, and the refractory metal silicide layer if formed, are etched to define a conductive interconnect between the exposed selected regions of the first and second conductive structures.
公开/授权文献
- EP0517368B1 Local interconnect for integrated circuits 公开/授权日:1998-09-16
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