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    • 7. 发明申请
    • Method of fabricating field effect transistor with fin structure and field effect transistor with fin structure fabricated therefrom
    • 具有翅片结构的场效应晶体管和由其制造的鳍结构的场效应晶体管的方法
    • US20130105867A1
    • 2013-05-02
    • US13284987
    • 2011-10-31
    • Chih-Jung WangTong-Yu Chen
    • Chih-Jung WangTong-Yu Chen
    • H01L21/336H01L29/78
    • H01L29/7851H01L29/0649H01L29/66545H01L29/66818
    • A method of fabricating a field effect transistor with a fin structure is described. At least a fin structure is formed on a substrate. A planar insulation layer covering the fin structure is formed. A trench is formed in the insulation layer and intersects the fin structure both lengthwise, and thereby an upper portion of the fin structure is exposed to the trench. The exposed upper portion of the fin structure will serve as a gate channel region. A gate structure covering the upper portion is formed within the trench. The upper portion of the fin structure may be further trimmed. Accordingly, the present invention also relates to a field effect transistor with a fin structure, in which, the channel width is less than the source/drain width, and a gate structure has two sidewalls contacting two opposite sidewalls of a source region and a drain region, respectively.
    • 描述了制造具有翅片结构的场效应晶体管的方法。 至少在基板上形成翅片结构。 形成覆盖翅片结构的平面绝缘层。 在绝缘层中形成沟槽,并且纵向地与鳍状结构相交,从而翅片结构的上部暴露于沟槽。 鳍结构的暴露的上部将用作栅极沟道区。 在沟槽内形成覆盖上部的栅极结构。 翅片结构的上部可以进一步修整。 因此,本发明还涉及具有翅片结构的场效应晶体管,其中沟道宽度小于源极/漏极宽度,并且栅极结构具有接触源极区域和漏极的两个相对侧壁的两个侧壁 区域。