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公开(公告)号:US20130344701A1
公开(公告)日:2013-12-26
申请号:US13929969
申请日:2013-06-28
申请人: Wei LIU , Eiichi MATSUSUE , Meihua SHEN , Shashank C. DESHMUKH , Anh-Kiet Quang PHAN , David PALAGASHVILI , Michael D. WILLWERTH , Jong I. SHIN , Barrett FINCH , Yohei KAWASE
发明人: Wei LIU , Eiichi MATSUSUE , Meihua SHEN , Shashank C. DESHMUKH , Anh-Kiet Quang PHAN , David PALAGASHVILI , Michael D. WILLWERTH , Jong I. SHIN , Barrett FINCH , Yohei KAWASE
IPC分类号: H01L21/3065
CPC分类号: H01L21/3065 , H01L21/31116 , H01L21/31122 , H01L21/32137 , H01L29/40117
摘要: Methods for etching high-k material at high temperatures are provided. In one embodiment, a method etching high-k material on a substrate may include providing a substrate having a high-k material layer disposed thereon into an etch chamber, forming a plasma from an etching gas mixture including at least a halogen containing gas into the etch chamber, maintaining a temperature of an interior surface of the etch chamber in excess of about 100 degree Celsius while etching the high-k material layer in the presence of the plasma, and maintaining a substrate temperature between about 100 degree Celsius and about 250 degrees Celsius while etching the high-k material layer in the presence of the plasma.
摘要翻译: 提供了在高温下蚀刻高k材料的方法。 在一个实施例中,在衬底上蚀刻高k材料的方法可以包括提供其上设置有高k材料层的衬底到蚀刻室中,从包括至少含卤素气体的蚀刻气体混合物形成等离子体到 蚀刻室,在蚀刻室的内部表面的温度保持超过约100摄氏度,同时在存在等离子体的同时蚀刻高k材料层,并将衬底温度保持在约100摄氏度至约250度之间 摄氏度,同时在存在等离子体的同时蚀刻高k材料层。