Field effect transistors having multiple stacked channels
    82.
    发明授权
    Field effect transistors having multiple stacked channels 有权
    具有多个堆叠通道的场效应晶体管

    公开(公告)号:US07002207B2

    公开(公告)日:2006-02-21

    申请号:US10610607

    申请日:2003-07-01

    IPC分类号: H01L29/76 H01L29/94

    摘要: Integrated circuit field effect transistor devices include a substrate having a surface and an active channel pattern on the surface. The active channel pattern includes channels that are stacked upon one another and are spaced apart from one another to define at least one tunnel between adjacent channels. A gate electrode surrounds the channels and extends through the at least one tunnel. A pair of source/drain regions also is provided. Integrated circuit field effect transistors are manufactured, by forming a pre-active pattern on a surface of a substrate. The pre-active pattern includes a series of interchannel layers and channel layers stacked alternately upon each other. Source/drain regions are formed on the substrate at opposite ends of the pre-active pattern. The interchannel layers are selectively removed to form tunnels. A gate electrode is formed in the tunnels and surrounding the channels.

    摘要翻译: 集成电路场效应晶体管器件包括在表面上具有表面和有源沟道图案的衬底。 活动通道图案包括彼此堆叠并且彼此间隔开以限定相邻通道之间的至少一个通道的通道。 栅电极围绕通道并延伸穿过至少一个通道。 还提供了一对源极/漏极区域。 通过在衬底的表面上形成预活性图案来制造集成电路场效应晶体管。 预激活图案包括彼此交替堆叠的一系列通道间层和沟道层。 源极/漏极区域在预活化图案的相对端处在衬底上形成。 选择性地去除通道间层以形成隧道。 在隧道中形成栅电极并围绕通道。