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    • 79. 发明授权
    • Fin structure of fin field effect transistor
    • 翅片场效应晶体管的鳍结构
    • US09484462B2
    • 2016-11-01
    • US12766233
    • 2010-04-23
    • Feng YuanHung-Ming ChenTsung-Lin LeeChang-Yun ChangClement Hsingjen Wann
    • Feng YuanHung-Ming ChenTsung-Lin LeeChang-Yun ChangClement Hsingjen Wann
    • H01L29/06H01L29/78H01L29/66
    • H01L29/66795H01L21/308H01L29/7851H01L29/7853
    • An exemplary structure for the fin field effect transistor comprises a substrate comprising a major surface; a plurality of fin structures protruding from the major surface of the substrate, wherein each fin structure comprises an upper portion and a lower portion separated at a transition location at where the sidewall of the fin structure is at an angle of 85 degrees to the major surface of the substrate, wherein the upper portion has sidewalls that are substantially perpendicular to the major surface of the substrate and a top surface having a first width, wherein the lower portion has tapered sidewalls on opposite sides of the upper portion and a base having a second width larger than the first width; and a plurality of isolation structures between the fin structures, wherein each isolation structure extends from the major surface of the substrate to a point above the transition location.
    • 鳍状场效应晶体管的示例性结构包括:包括主表面的衬底; 多个翅片结构,从所述基底的主表面突出,其中每个翅片结构包括在翅片结构的侧壁与主表面成85度角的过渡位置处分离的上部和下部 ,其中所述上部具有基本上垂直于所述基底的主表面的侧壁和具有第一宽度的顶表面,其中所述下部具有在所述上部的相对侧上的锥形侧壁和具有第二宽度的基部 宽度大于第一宽度; 以及在翅片结构之间的多个隔离结构,其中每个隔离结构从基板的主表面延伸到过渡位置上方的点。