发明授权
- 专利标题: Method for symmetric deposition of metal layer
- 专利标题(中): 金属层对称沉积方法
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申请号: US11334610申请日: 2006-01-18
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公开(公告)号: US07553755B2公开(公告)日: 2009-06-30
- 发明人: Sheng-Hui Hsieh , Ling-Wuu Yang , Chi-Tung Huang , Kuang-Chao Chen
- 申请人: Sheng-Hui Hsieh , Ling-Wuu Yang , Chi-Tung Huang , Kuang-Chao Chen
- 申请人地址: TW
- 专利权人: Macronix International Co., Ltd.
- 当前专利权人: Macronix International Co., Ltd.
- 当前专利权人地址: TW
- 代理机构: Baker & McKenzie LLP
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763
摘要:
A method for symmetric deposition of metal layer over a metal layer registration key comprises using MOCVD to form the metal layer. Once the symmetric metal layer is formed, a metal layer registration key can be accurately detected and the metal layer registration key overlay shift can be improved.
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