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公开(公告)号:US09299581B2
公开(公告)日:2016-03-29
申请号:US13456404
申请日:2012-04-26
申请人: Kwangduk Douglas Lee , Sudha Rathi , Ramprakash Sankarakrishnan , Martin Jay Seamons , Irfan Jamil , Bok Hoen Kim
发明人: Kwangduk Douglas Lee , Sudha Rathi , Ramprakash Sankarakrishnan , Martin Jay Seamons , Irfan Jamil , Bok Hoen Kim
IPC分类号: B08B5/00 , H01L21/311 , H01L21/02
CPC分类号: H01L21/31122 , H01L21/0206 , H01L21/31144
摘要: Embodiments of the invention generally relate to methods of dry stripping boron-carbon films. In one embodiment, alternating plasmas of hydrogen and oxygen are used to remove a boron-carbon film. In another embodiment, co-flowed oxygen and hydrogen plasma is used to remove a boron-carbon containing film. A nitrous oxide plasma may be used in addition to or as an alternative to either of the above oxygen plasmas. In another embodiment, a plasma generated from water vapor is used to remove a boron-carbon film. The boron-carbon removal processes may also include an optional polymer removal process prior to removal of the boron-carbon films. The polymer removal process includes exposing the boron-carbon film to NF3 to remove from the surface of the boron-carbon film any carbon-based polymers generated during a substrate etching process.
摘要翻译: 本发明的实施方案一般涉及干燥汽提硼 - 碳膜的方法。 在一个实施方案中,使用氢和氧的交替等离子体去除硼 - 碳膜。 在另一个实施方案中,使用共流氧和氢等离子体去除含硼碳膜。 除了作为上述氧等离子体中的任一种之外,还可以使用一氧化二氮等离子体。 在另一个实施方案中,使用由水蒸气产生的等离子体来除去硼 - 碳膜。 在除去硼 - 碳膜之前,硼 - 碳去除方法还可以包括任选的聚合物去除方法。 聚合物去除方法包括将硼 - 碳膜暴露于NF3以从硼 - 碳膜的表面除去在基板蚀刻工艺期间产生的任何碳基聚合物。
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公开(公告)号:US20120285492A1
公开(公告)日:2012-11-15
申请号:US13456404
申请日:2012-04-26
申请人: Kwangduk Douglas Lee , Sudha Rathi , Ramprakash Sankarakrishnan , Martin Jay Seamons , Irfan Jamil , Bok Hoen Kim
发明人: Kwangduk Douglas Lee , Sudha Rathi , Ramprakash Sankarakrishnan , Martin Jay Seamons , Irfan Jamil , Bok Hoen Kim
IPC分类号: B08B5/00
CPC分类号: H01L21/31122 , H01L21/0206 , H01L21/31144
摘要: Embodiments of the invention generally relate to methods of dry stripping boron-carbon films. In one embodiment, alternating plasmas of hydrogen and oxygen are used to remove a boron-carbon film. In another embodiment, co-flowed oxygen and hydrogen plasma is used to remove a boron-carbon containing film. A nitrous oxide plasma may be used in addition to or as an alternative to either of the above oxygen plasmas. In another embodiment, a plasma generated from water vapor is used to remove a boron-carbon film. The boron-carbon removal processes may also include an optional polymer removal process prior to removal of the boron-carbon films. The polymer removal process includes exposing the boron-carbon film to NF3 to remove from the surface of the boron-carbon film any carbon-based polymers generated during a substrate etching process.
摘要翻译: 本发明的实施方案一般涉及干燥汽提硼 - 碳膜的方法。 在一个实施方案中,使用氢和氧的交替等离子体去除硼 - 碳膜。 在另一个实施方案中,使用共流氧和氢等离子体去除含硼碳膜。 除了作为上述氧等离子体中的任一种之外,还可以使用一氧化二氮等离子体。 在另一个实施方案中,使用由水蒸气产生的等离子体来除去硼 - 碳膜。 在除去硼 - 碳膜之前,硼 - 碳去除方法还可以包括任选的聚合物去除方法。 聚合物去除方法包括将硼 - 碳膜暴露于NF3以从硼 - 碳膜的表面除去在基板蚀刻工艺期间产生的任何碳基聚合物。
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