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    • 6. 发明授权
    • Virtual body-contacted trigate
    • 虚拟身体接触的三位一体
    • US07700446B2
    • 2010-04-20
    • US11830868
    • 2007-07-31
    • Brent A. AndersonMatthew J. BreitwischEdward J. NowakBethAnn Rainey
    • Brent A. AndersonMatthew J. BreitwischEdward J. NowakBethAnn Rainey
    • H01L21/336
    • H01L29/785H01L29/42384H01L29/66795H01L29/78615H01L29/78687
    • A field effect transistor (FET) and method of forming the FET comprises a substrate; a silicon germanium (SiGe) layer over the substrate; a semiconductor layer over and adjacent to the SiGe layer; an insulating layer adjacent to the substrate, the SiGe layer, and the semiconductor layer; a pair of first gate structures adjacent to the insulating layer; and a second gate structure over the insulating layer. Preferably, the insulating layer is adjacent to a side surface of the SiGe layer and an upper surface of the semiconductor layer, a lower surface of the semiconductor layer, and a side surface of the semiconductor layer. Preferably, the SiGe layer comprises carbon. Preferably, the pair of first gate structures are substantially transverse to the second gate structure. Additionally, the pair of first gate structures are preferably encapsulated by the insulating layer.
    • 场效应晶体管(FET)和形成FET的方法包括:衬底; 衬底上的硅锗(SiGe)层; 在SiGe层上并邻近SiGe层的半导体层; 与衬底相邻的绝缘层,SiGe层和半导体层; 邻近绝缘层的一对第一栅极结构; 以及绝缘层上的第二栅极结构。 优选地,绝缘层与SiGe层的侧表面,半导体层的上表面,半导体层的下表面和半导体层的侧表面相邻。 优选地,SiGe层包含碳。 优选地,该对第一栅极结构基本上横向于第二栅极结构。 此外,该对第一栅极结构优选地被绝缘层封装。
    • 7. 发明授权
    • Method of making a finFET having suppressed parasitic device characteristics
    • 制造具有抑制寄生器件特性的finFET的方法
    • US07470578B2
    • 2008-12-30
    • US11267882
    • 2005-11-04
    • Edward J. NowakBethAnn Rainey
    • Edward J. NowakBethAnn Rainey
    • H01L21/8234H01L21/336H01L21/8238
    • H01L29/785H01L27/1203H01L29/66795
    • A finFET (100) having sidwall spacers (136, 140) to suppress parasitic devices in the upper region of a channel and at the bases of source(s) and drain(s) that are artifacts of the fabrication techniques used to make the finFET. The FinFET is formed on an SOI wafer (104) by etching through a hardmask (148) so as to form a freestanding fin (120). Prior to doping the source(s) (124) and drain(s) (128), a layer (156) of thermal oxide is deposited over the entire finFET. This layer is etched away so as to form the sidewall spacers at each reentrant corner formed where a horizontal surface meets a vertical surface. Sidewall spacers (136) inhibit doping of the upper region of source(s) and drain(s) immediately adjacent the gate. Sidewall spacers (140) fill in any undercut regions (144) of BOX layer (116) that may have been formed during prior fabrication steps.
    • 具有侧壁间隔物(136,140)的finFET(100),其用于抑制通道上部区域中的寄生器件,以及源极和漏极的基础,这些器件是用于制造鳍状FET的制造技术的假象 。 FinFET通过蚀刻穿过硬掩模(148)形成在SOI晶片(104)上,以形成独立散热片(120)。 在掺杂源极(124)和漏极(128)之前,在整个finFET上沉积热氧化物层(156)。 该层被蚀刻掉,以便在形成的水平表面与垂直表面相交的每个折入角处形成侧壁间隔物。 侧壁间隔物(136)抑制源极的上部区域和与栅极紧邻的漏极的掺杂。 侧壁间隔物(140)填充可能在先前制造步骤期间形成的BOX层(116)的任何底切区域(144)。
    • 10. 发明申请
    • VIRTUAL BODY-CONTACTED TRIGATE
    • 虚拟身体接触的TRIGATE
    • US20070023756A1
    • 2007-02-01
    • US11161213
    • 2005-07-27
    • Brent AndersonMatthew BreitwischEdward NowakBethAnn Rainey
    • Brent AndersonMatthew BreitwischEdward NowakBethAnn Rainey
    • H01L29/12H01L21/84
    • H01L29/785H01L29/42384H01L29/66795H01L29/78615H01L29/78687
    • A field effect transistor (FET) and method of forming the FET comprises a substrate; a silicon germanium (SiGe) layer over the substrate; a semiconductor layer over and adjacent to the SiGe layer; an insulating layer adjacent to the substrate, the SiGe layer, and the semiconductor layer; a pair of first gate structures adjacent to the insulating layer; and a second gate structure over the insulating layer. Preferably, the insulating layer is adjacent to a side surface of the SiGe layer and an upper surface of the semiconductor layer, a lower surface of the semiconductor layer, and a side surface of the semiconductor layer. Preferably, the SiGe layer comprises carbon. Preferably, the pair of first gate structures are substantially transverse to the second gate structure. Additionally, the pair of first gate structures are preferably encapsulated by the insulating layer.
    • 场效应晶体管(FET)和形成FET的方法包括:衬底; 衬底上的硅锗(SiGe)层; 在SiGe层上并邻近SiGe层的半导体层; 与衬底相邻的绝缘层,SiGe层和半导体层; 邻近绝缘层的一对第一栅极结构; 以及绝缘层上的第二栅极结构。 优选地,绝缘层与SiGe层的侧表面,半导体层的上表面,半导体层的下表面和半导体层的侧表面相邻。 优选地,SiGe层包含碳。 优选地,该对第一栅极结构基本上横向于第二栅极结构。 此外,该对第一栅极结构优选地被绝缘层封装。