发明申请
- 专利标题: PROCESS WITH SATURATION AT LOW ETCH AMOUNT FOR HIGH CONTACT BOTTOM CLEANING EFFICIENCY FOR CHEMICAL DRY CLEAN PROCESS
- 专利标题(中): 用于化学干洗过程的高接触底部清洁效率的低刻度处理
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申请号: US12021844申请日: 2008-01-29
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公开(公告)号: US20090191703A1公开(公告)日: 2009-07-30
- 发明人: Xinliang Lu , Haichun Yang , Zhenbin Ge , Chien-Teh Kao , Mei Chang
- 申请人: Xinliang Lu , Haichun Yang , Zhenbin Ge , Chien-Teh Kao , Mei Chang
- 专利权人: APPLIED MATERIALS, INC.
- 当前专利权人: APPLIED MATERIALS, INC.
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763 ; H01L21/302
摘要:
A method for removing oxides from the bottom surface of a contact hole is provided. The method provides efficient cleaning of the bottom surface without distortion of the contact hole upper and sidewall surfaces.
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