发明授权
- 专利标题: Methods for high temperature etching a high-K material gate structure
- 专利标题(中): 高K蚀刻高K材料栅结构的方法
-
申请号: US12146303申请日: 2008-06-25
-
公开(公告)号: US08501626B2公开(公告)日: 2013-08-06
- 发明人: Wei Liu , Eiichi Matsusue , Meihua Shen , Shashank Deshmukh , Anh-Kiet Quang Phan , David Palagashvili , Michael D. Willwerth , Jong I. Shin , Barrett Finch , Yohei Kawase
- 申请人: Wei Liu , Eiichi Matsusue , Meihua Shen , Shashank Deshmukh , Anh-Kiet Quang Phan , David Palagashvili , Michael D. Willwerth , Jong I. Shin , Barrett Finch , Yohei Kawase
- 申请人地址: US CA Santa Clara
- 专利权人: Applied Materials, Inc.
- 当前专利权人: Applied Materials, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Patterson & Sheridan, LLP
- 主分类号: H01L21/302
- IPC分类号: H01L21/302 ; H01L21/461 ; C03C15/00 ; C03C25/68
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.
公开/授权文献
信息查询
IPC分类: