发明授权
- 专利标题: Etch method for removing metal-fluoropolymer residues
- 专利标题(中): 用于去除金属 - 含氟聚合物残留物的蚀刻方法
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申请号: US725805申请日: 1996-10-04
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公开(公告)号: US5865900A公开(公告)日: 1999-02-02
- 发明人: Chiarn-Lung Lee , Huai-Jen Shu , Ying-Tzu Yen
- 申请人: Chiarn-Lung Lee , Huai-Jen Shu , Ying-Tzu Yen
- 申请人地址: TWX Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TWX Hsin-Chu
- 主分类号: H01L21/02
- IPC分类号: H01L21/02 ; H01L21/3213 ; H01L21/3065 ; C23G1/02 ; H01L21/306
摘要:
A method for removing a metal-fluoropolymer residue from an integrated circuit structure within an integrated circuit. There is first provided an integrated circuit having formed therein a metal-fluoropolymer residue. The metal-fluoropolymer residue is formed from a first plasma etch method employing a fluorocarbon containing etchant gas composition within the presence of a conductor metal layer within the integrated circuit. The metal-fluoropolymer residue is then exposed to a second plasma etch method employing a chlorine containing etchant gas composition to form from the metal-fluoropolymer residue a chlorine containing plasma treated metal-fluoropolymer residue. Finally, the chlorine containing plasma treated metal-fluoropolymer residue is removed from the integrated circuit through a stripping method sequentially employing an aqueous acid solution followed by an organic solvent.
公开/授权文献
- US5186175A Ultrasonic diagnostic apparatus 公开/授权日:1993-02-16
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