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    • 3. 发明申请
    • SILICIDE CAP STRUCTURE AND PROCESS FOR REDUCED STRESS AND IMPROVED GATE SHEET RESISTANCE
    • 减少应力和改进的栅格电阻的硅胶结构和工艺
    • US20080020535A1
    • 2008-01-24
    • US11866751
    • 2007-10-03
    • Levent GulariKevin MelloRobert PurtellYun-Yu WangKeith Wong
    • Levent GulariKevin MelloRobert PurtellYun-Yu WangKeith Wong
    • H01L21/336H01L21/44
    • H01L21/28052H01L21/28114H01L21/28518H01L29/665
    • A silicide cap structure and method of fabricating a silicide cap having a low sheet resistance. The method provides a semiconductor substrate and a MOSFET structure comprising a gate insulator on the substrate, an Si-containing gate electrode on the gate insulator layer, and source/drain diffusions. Atop the gate electrode and source/drain diffusions is formed a layer of metal used in forming a silicide region atop the transistor gate electrode and diffusions; an intermediate metal barrier layer formed atop the silicide forming metal layer; and, an oxygen barrier layer formed atop the intermediate metal barrier layer. As a result of annealing the MOSFET structure, resulting formed silicide regions exhibit a lower sheet resistance. As the intermediate metal barrier layer comprises a material exhibiting tensile stress, the oxygen barrier layer may comprise a compressive material for minimizing a total mechanical stress of the cap structure and underlying layers during the applied anneal.
    • 一种硅化物盖结构和制造具有低薄层电阻的硅化物盖的方法。 该方法提供半导体衬底和MOSFET结构,其包括在衬底上的栅极绝缘体,栅极绝缘体层上的含Si栅极电极和源极/漏极扩散。 在栅电极和源极/漏极扩散之上形成用于在晶体管栅极顶部形成硅化物区域和扩散的金属层; 形成在所述硅化物形成金属层顶上的中间金属阻挡层; 以及形成在中间金属阻挡层顶上的氧阻隔层。 作为对MOSFET结构进行退火的结果,所形成的形成的硅化物区域具有较低的薄层电阻。 当中间金属阻挡层包括显示拉伸应力的材料时,氧阻挡层可以包括用于在施加的退火期间最小化盖结构和下层的总机械应力的压缩材料。
    • 6. 发明申请
    • SILICIDE CAP STRUCTURE AND PROCESS FOR REDUCED STRESS AND IMPROVED GATE SHEET RESISTANCE
    • 减少应力和改进的栅格电阻的硅胶结构和工艺
    • US20060163671A1
    • 2006-07-27
    • US10905949
    • 2005-01-27
    • Levent GulariKevin MelloRobert PurtellYun-Yu WangKeith Wong
    • Levent GulariKevin MelloRobert PurtellYun-Yu WangKeith Wong
    • H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L21/28052H01L21/28114H01L21/28518H01L29/665
    • A suicide cap structure and method of fabricating a suicide cap having a low sheet resistance. The method provides a semiconductor substrate and a MOSFET structure comprising a gate insulator on the substrate, an Si-containing gate electrode on the gate insulator layer, and source/drain diffusions. Atop the gate electrode and source/drain diffusions is formed a layer of metal used in forming a silicide region atop the transistor gate electrode and diffusions; an intermediate metal barrier layer formed atop the silicide forming metal layer; and, an oxygen barrier layer formed atop the intermediate metal barrier layer. As a result of annealing the MOSFET structure, resulting formed silicide regions exhibit a lower sheet resistance. As the intermediate metal barrier layer comprises a material exhibiting tensile stress, the oxygen barrier layer may comprise a compressive material for minimizing a total mechanical stress of the cap structure and underlying layers during the applied anneal.
    • 一种自杀帽结构和制造具有低薄层阻力的自杀帽的方法。 该方法提供半导体衬底和MOSFET结构,其包括在衬底上的栅极绝缘体,栅极绝缘体层上的含Si栅极电极和源极/漏极扩散。 在栅电极和源极/漏极扩散之上形成用于在晶体管栅极顶部形成硅化物区域和扩散的金属层; 形成在所述硅化物形成金属层顶上的中间金属阻挡层; 以及形成在中间金属阻挡层顶上的氧阻隔层。 作为对MOSFET结构进行退火的结果,所形成的形成的硅化物区域具有较低的薄层电阻。 当中间金属阻挡层包括显示拉伸应力的材料时,氧阻挡层可以包括用于在施加的退火期间最小化盖结构和下层的总机械应力的压缩材料。