- 专利标题: Integrated circuit interconnect structures with air gaps
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申请号: US16380386申请日: 2019-04-10
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公开(公告)号: US11244898B2公开(公告)日: 2022-02-08
- 发明人: Tai-I Yang , Li-Lin Su , Yung-Hsu Wu , Hsin-Ping Chen , Cheng-Chi Chuang
- 申请人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Co., Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: Haynes and Boone, LLP
- 主分类号: H01L23/528
- IPC分类号: H01L23/528 ; H01L21/768 ; H01L23/522 ; H01L21/8234
摘要:
Examples of an integrated circuit with an interconnect structure and a method for forming the integrated circuit are provided herein. In some examples, the method includes receiving a workpiece having an interconnect structure that includes a first conductive feature, a second conductive feature disposed beside the first conductive feature, and an inter-level dielectric disposed between the first conductive feature and the second conductive feature. A conductive material of an etch stop layer is selectively deposited on the first conductive feature and on the second conductive feature without depositing the conductive material on the inter-level dielectric, and the inter-level dielectric is removed to form a gap between the first conductive feature and the second conductive feature.
公开/授权文献
- US20200006228A1 Integrated Circuit Interconnect Structures with Air Gaps 公开/授权日:2020-01-02
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