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    • 4. 发明授权
    • Semiconductor device and method for manufacturing the same
    • 半导体装置及其制造方法
    • US07205618B2
    • 2007-04-17
    • US11052036
    • 2005-02-08
    • Masato KoyamaAkira NishiyamaYuuichi Kamimuta
    • Masato KoyamaAkira NishiyamaYuuichi Kamimuta
    • H01L27/01H01L27/12H01L31/0392H01L31/119H01L31/113
    • H01L21/823814H01L21/823864
    • A semiconductor device includes a silicon substrate, a channel region formed in a surface of the silicon substrate, a gate insulating film formed on the channel region, a gate electrode formed on the gate insulating film, first gate side walls formed on the gate insulating film to sandwich the gate electrode in a gate length direction, second gate side walls which sandwich the gate electrode and the first gate side wall, first diffused layers formed on the surface of the silicon substrate to sandwich the channel region, second diffused layers which sandwich the channel region and the first diffused layer and have a larger depth than that of the first diffused layer, and low resistance layers which are formed between the first diffused layer and the second gate side wall and contain nitride, boride or carbide of Ti, Zr, Hf or Ta.
    • 半导体器件包括硅衬底,形成在硅衬底的表面中的沟道区,形成在沟道区上的栅极绝缘膜,形成在栅极绝缘膜上的栅极,形成在栅极绝缘膜上的第一栅极侧壁 夹着栅极电极和第一栅极侧壁的第二栅极侧壁,形成在硅衬底的表面上以夹持沟道区域的第一扩散层,夹着所述栅极电极和第二栅极侧壁的第二扩散层, 沟道区域和第一扩散层,并且具有比第一扩散层的深度更大的深度,以及形成在第一扩散层和第二栅极侧壁之间的低电阻层,并且包含Ti,Zr的氮化物,硼化物或碳化物, Hf或Ta。