DUAL METAL AND DUAL DIELECTRIC INTEGRATION FOR METAL HIGH-K FETS
    2.
    发明公开
    DUAL METAL AND DUAL DIELECTRIC INTEGRATION FOR METAL HIGH-K FETS 审中-公开
    双金属和DOPPELDIELEKTRIK集成高k金属场效应管

    公开(公告)号:EP2419925A4

    公开(公告)日:2016-03-30

    申请号:EP10765059

    申请日:2010-04-14

    Applicant: IBM

    Abstract: The present invention, in one embodiment, provides a method of forming a semiconductor device that includes providing a substrate including a first conductivity type region and a second conductivity type region; forming a gate stack including a gate dielectric atop the first conductivity type region and the second conductivity type region of the substrate and a first metal gate conductor overlying the high-k gate dielectric; removing a portion of the first metal gate conductor that is present in the first conductivity type region to expose the gate dielectric present in the first conductivity type region; applying a nitrogen based plasma to the substrate, wherein the nitrogen based plasma nitrides the gate dielectric that is present in the first conductivity type region and nitrides the first metal gate conductor that is present in the second conductivity type region; and forming a second metal gate conductor overlying at least the gate dielectric that is present in the first conductivity type region.

    FORMATION OF IMPROVED SOI SUBSTRATES USING BULK SEMICONDUCTOR WAFERS
    6.
    发明申请
    FORMATION OF IMPROVED SOI SUBSTRATES USING BULK SEMICONDUCTOR WAFERS 审中-公开
    使用块状半导体波形形成改进的SOI衬底

    公开(公告)号:WO2007140288A3

    公开(公告)日:2008-04-24

    申请号:PCT/US2007069720

    申请日:2007-05-25

    CPC classification number: H01L21/764 H01L21/76283

    Abstract: The present invention relates to semiconductor-on-insulator (SOI) substrates having device regions (2, 4, 6), each comprises a base semiconductor substrate layer (12) and a semiconductor device layer (16) and a buried insulator layer (14) between. The semiconductor device layer (16) supported by vertical insulating pillars (22), each having a ledge extending between the base semiconductor substrate layer (12) and the semiconductor device layer (16). The SOI substrates of the present invention can be readily formed from a precursor substrate structure with a "floating" semiconductor device layer that is spaced apart from the base semiconductor substrate layer by an air gap (15) and is supported by the vertical insulating pillars (22). The air gap (15) is preferably formed by selective removal of a sacrificial layer (13) located between the base semiconductor substrate layer (12) and the semiconductor device layer (16).

    Abstract translation: 本发明涉及具有器件区域(2,4,6)的绝缘体上绝缘体(SOI)衬底,每个衬底半导体衬底层(12)和半导体器件层(16)和掩埋绝缘体层(14) )之间。 由垂直绝缘柱(22)支撑的半导体器件层(16)各自具有在基底半导体衬底层(12)和半导体器件层(16)之间延伸的凸缘。 本发明的SOI衬底可以容易地由具有“浮动”半导体器件层的前体衬底结构形成,半导体器件层通过气隙(15)与基底半导体衬底层间隔开并由垂直绝缘柱( 22)。 气隙(15)优选通过选择性地去除位于基底半导体衬底层(12)和半导体器件层(16)之间的牺牲层(13)来形成。

    Anpassung von Schwellenspannungen für Thin-Body-Mosfets

    公开(公告)号:DE112012004134T5

    公开(公告)日:2014-06-26

    申请号:DE112012004134

    申请日:2012-10-26

    Applicant: IBM

    Abstract: Eine Struktur beinhaltet ein Substrat; einen Transistor, der über dem Substrat angeordnet ist, wobei der Transistor eine Finne aufweist, die aus Silicium besteht, das mit Kohlenstoff implantiert ist; und eine Schicht eines Gate-Dielektrikums und eine Schicht eines Gate-Metalls, die über einem Abschnitt der Finne liegen, der einen Kanal des Transistors definiert. In der Struktur wird eine Kohlenstoffkonzentration innerhalb der Finne so gewählt, dass eine gewünschte Schwellenspannung des Transistors erreicht wird. Darüber hinaus werden Verfahren zum Fertigen eines FinFET-Transistors offenbart. Zudem wird ein planarer Transistor mit einer mit Kohlenstoff implantierten Wanne offenbart, wobei die Kohlenstoffkonzentration innerhalb der Wanne so gewählt wird, dass eine gewünschte Schwellenspannung des Transistors erreicht wird.

    THRESHOLD VOLTAGE ADJUSTMENT THROUGH GATE DIELECTRIC STACK MODIFICATION

    公开(公告)号:SG174853A1

    公开(公告)日:2011-11-28

    申请号:SG2011057296

    申请日:2010-04-22

    Applicant: IBM

    Abstract: Multiple types of gate stacks are formed on a doped semiconductor well. A high dielectric constant (high-k) gate dielectric is formed on the doped semiconductor well. A metal gate layer is formed in one device area, while the high-k gate dielectric is exposed in other device areas. Threshold voltage adjustment oxide layers having different thicknesses are formed in the other device areas. A conductive gate material layer is then formed over the threshold voltage adjustment oxide layers. One type of field effect transistors includes a gate dielectric including a high-k gate dielectric portion. Other types of field effect transistors include a gate dielectric including a high-k gate dielectric portion and a first threshold voltage adjustment oxide portions having different thicknesses. Field effect transistors having different threshold voltages are provided by employing different gate dielectric stacks and doped semiconductor wells having the same dopant concentration.

Patent Agency Ranking