Invention Grant
US08697513B2 Manufacturing method of semiconductor device having N-channel MOS transistor, P-channel MOS transistor and expanding or contracting film
有权
具有N沟道MOS晶体管,P沟道MOS晶体管和扩展或收缩膜的半导体器件的制造方法
- Patent Title: Manufacturing method of semiconductor device having N-channel MOS transistor, P-channel MOS transistor and expanding or contracting film
- Patent Title (中): 具有N沟道MOS晶体管,P沟道MOS晶体管和扩展或收缩膜的半导体器件的制造方法
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Application No.: US13889635Application Date: 2013-05-08
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Publication No.: US08697513B2Publication Date: 2014-04-15
- Inventor: Ryo Tanabe
- Applicant: Fujitsu Semiconductor Limited
- Applicant Address: JP Yokohama
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Main IPC: H01L21/8238
- IPC: H01L21/8238

Abstract:
In a second direction, in a plan view, an n-channel MOS transistor and an expanding film are adjacent. Therefore, the n-channel MOS transistor receives a positive stress in the direction in which a channel length is extended from the expanding film. As a result, a positive tensile strain in an electron moving direction is generated in a channel of the n-channel MOS transistor. On the other hand, in the second direction, in a plan view, a p-channel MOS transistor and the expanding film are shifted from each other. Therefore, the p-channel MOS transistor receives a positive stress in the direction in which a channel length is narrowed from the expanding film. As a result, a positive compressive strain in a hole moving direction is generated in a channel of the p-channel MOS transistor. Thus, both on-currents of the n-channel MOS transistor and the p-channel MOS transistor can be improved.
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