发明授权
US08466050B2 Method for dual energy implantation for ultra-shallow junction formation of MOS devices
有权
双能量注入方法用于MOS器件的超浅结结形成
- 专利标题: Method for dual energy implantation for ultra-shallow junction formation of MOS devices
- 专利标题(中): 双能量注入方法用于MOS器件的超浅结结形成
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申请号: US12830241申请日: 2010-07-02
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公开(公告)号: US08466050B2公开(公告)日: 2013-06-18
- 发明人: Hanming Wu , Chia Hao Lee , John Chen
- 申请人: Hanming Wu , Chia Hao Lee , John Chen
- 申请人地址: CN Shanghai
- 专利权人: Semiconductor Manufacturing International (Shanghai) Corporation
- 当前专利权人: Semiconductor Manufacturing International (Shanghai) Corporation
- 当前专利权人地址: CN Shanghai
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 优先权: CN200910054410 20090703
- 主分类号: H01L21/425
- IPC分类号: H01L21/425
摘要:
A method for forming a lightly doped drain (LDD) region in a semiconductor substrate. The method includes generating an ion beam of a selected species, and accelerating the ion beam, wherein the accelerated ion beam includes a first accelerated portion and a second accelerated portion. The method further includes deflecting the accelerating ion beam, wherein the first and second accelerated portions are concurrently deflected into a first path trajectory having a first deflected angle and second path trajectory having a second deflected angle. In an embodiment, the first and second path trajectories travel in the same direction, which is perpendicular to the surface region of the semiconductor wafer, and the first deflected angle is greater than the second deflected angle. In an embodiment, the selected species may include an n-type ion comprising phosphorous (P), arsenic (As), or antimony (Sb).
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