发明名称 |
Semiconductor device having fin-type field effect transistor and method of manufacturing the same |
摘要 |
A semiconductor device includes a substrate having a first region and a second region, a first MOS transistor including a first fin structure and a first gate electrode in the first region, the first fin structure having a first buffer pattern, a second buffer pattern, and a first channel pattern which are sequentially stacked on the substrate, and a second MOS transistor including a second fin structure and a second gate electrode in the second region, the second fin structure having a third buffer pattern and a second channel pattern which are sequentially stacked on the substrate. Related fabrication methods are also discussed. |
申请公布号 |
US9379244(B2) |
申请公布日期 |
2016.06.28 |
申请号 |
US201514668490 |
申请日期 |
2015.03.25 |
申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
Hur Sung Gi;Kwon TaeYong;Kim Sangsu;Choi Jungdal |
分类号 |
H01L29/04;H01L29/66;H01L23/31;H01L27/12;H01L29/78;H01L21/8238;H01L27/092;H01L27/088 |
主分类号 |
H01L29/04 |
代理机构 |
Myers Bigel & Sibley, P.A. |
代理人 |
Myers Bigel & Sibley, P.A. |
主权项 |
1. A semiconductor device, comprising:
a substrate having a first region and a second region; a first MOS transistor including a first fin structure and a first gate electrode in the first region, the first fin structure having a first buffer pattern, a second buffer pattern, and a first channel pattern which are sequentially stacked on the substrate; and a second MOS transistor including a second fin structure and a second gate electrode in the second region, the second fin structure having a third buffer pattern and a second channel pattern which are sequentially stacked on the substrate, wherein the first and third buffer patterns comprise a first semiconductor layer including germanium (Ge), the first channel pattern comprises a second semiconductor layer including germanium (Ge), and the second channel pattern comprises a third semiconductor layer including germanium (Ge), and wherein a germanium (Ge) concentration of the first semiconductor layer is less than germanium (Ge) concentrations of the second and third semiconductor layers. |
地址 |
KR |