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    • 1. 发明授权
    • Fin bipolar transistors having self-aligned collector and emitter regions
    • 鳍状双极晶体管具有自对准的集电极和发射极区域
    • US08617957B1
    • 2013-12-31
    • US13607877
    • 2012-09-10
    • Josephine B ChangGen Pei LauerIsaac LauerJeffrey W Sleight
    • Josephine B ChangGen Pei LauerIsaac LauerJeffrey W Sleight
    • H01L21/331
    • H01L29/42304H01L29/1008H01L29/6625H01L29/66265H01L29/7317H01L29/735H01L29/785
    • A method for fabricating a bipolar transistor device. The method includes the steps of: providing a SOI substrate having a silicon layer thereon; patterning lithographically a fin hardmask on the silicon layer; placing a dummy contact line over a central portion of patterned fin hardmask; doping the collector/emitter regions; depositing a filler layer over the collector region and the emitter region; removing the dummy contact line to reveal a trench and the central portion of the patterned fin hardmask; forming fin-shaped base regions by removing, within the trench, a portion of the silicon layer not covered by the central portion of the patterned fin hardmask after the step of removing the dummy contact line; doping the fin-shaped base region; and forming a contact line by filling the trench with a contact line material over the fin-shaped base regions, where the collector/emitter regions are self-aligned with the contact line.
    • 一种制造双极晶体管器件的方法。 该方法包括以下步骤:提供其上具有硅层的SOI衬底; 在硅层上平版印刷鳍状硬掩模; 将虚拟接触线放置在图案化翅片硬掩模的中心部分上; 掺杂集电极/发射极区域; 在所述集电极区域和所述发射极区域上沉积填充层; 去除虚拟接触线以露出沟槽和图案化散热片硬掩模的中心部分; 在除去虚拟接触线的步骤之后,通过在沟槽内去除未被图案化翅片硬掩模的中心部分覆盖的硅层的一部分来形成翅片形基底区域; 掺杂鳍片状基底区域; 以及通过在所述鳍状基极区域上的接触线材料填充所述沟槽而形成接触线,其中所述集电极/发射极区域与所述接触线自对准。
    • 2. 发明申请
    • LATERAL BIPOLAR TRANSISTOR AND CMOS HYBRID TECHNOLOGY
    • 横向双极晶体管和CMOS混合技术
    • US20140073106A1
    • 2014-03-13
    • US13610961
    • 2012-09-12
    • Josephine B. ChangGen Pei LauerIsaac LauerJeffrey W. Sleight
    • Josephine B. ChangGen Pei LauerIsaac LauerJeffrey W. Sleight
    • H01L21/331
    • H01L29/66265H01L21/84H01L29/6625H01L29/7317
    • A method of forming a lateral bipolar transistor. The method includes forming a silicon on insulator (SOI) substrate having a bottom substrate layer, a buried oxide layer (BOX) on top of the substrate layer, and a silicon on insulator (SOI) layer on top of the BOX layer, forming a dummy gate and spacer on top of the silicon on insulator layer, doping the SOI layer with positive or negative ions, depositing an inter layer dielectric (ILD), using chemical mechanical planarization (CMP) to planarize the ILD, removing the dummy gate creating a gate trench which reveals the base of the dummy gate, doping the dummy gate base, depositing a layer of polysilicon on top of the SOI layer and into the gate trench, etching the layer of polysilicon so that it only covers the dummy gate base, and applying a self-aligned silicide process.
    • 一种形成横向双极晶体管的方法。 该方法包括形成具有底部衬底层的绝缘体上硅(SOI)衬底,在衬底层顶部上的掩埋氧化物层(BOX)以及BOX层顶部上的绝缘体上硅(SOI)层,形成 在绝缘体上硅层的顶部设置虚拟栅极和间隔物,用正离子或负离子掺杂SOI层,使用化学机械平面化(CMP)沉积层间电介质(ILD)以平坦化ILD,去除伪栅极,从而形成 栅极沟槽,其显示虚拟栅极的基极,掺杂伪栅极基底,在SOI层的顶部上沉积多晶硅层并进入栅极沟槽,蚀刻多晶硅层,使得其仅覆盖伪栅极基极,以及 应用自对准硅化物工艺。