Polarization-doped field effect transistors (POLFETS) and materials and methods for making the same
    3.
    发明授权
    Polarization-doped field effect transistors (POLFETS) and materials and methods for making the same 有权
    极化掺杂场效应晶体管(POLFETS)及其制作方法

    公开(公告)号:US07525130B2

    公开(公告)日:2009-04-28

    申请号:US11241804

    申请日:2005-09-29

    IPC分类号: H01L31/00

    摘要: Novel GaN/AlGaN metal-semiconductor field-effect transistor (MESFET) structures grown without any impurity doping in the channel. A high-mobility polarization-induced bulk channel charge is created by grading the channel region linearly from GaN to Al0.3Ga0.7N over a distance, e.g., 1000 Å. A polarization-doped field effect transistor (PolFET) was fabricated and tested under DC and RF conditions. A current density of 850 mA/mm and transconductance of 93 mS/mm was observed under DC conditions. Small-signal characterization of 0.7 μm gate length devices had a cutoff frequency, fτ=19 GHz, and a maximum oscillation of fmax=46 GHz. The PolFETs perform better than comparable MESFETs with impurity-doped channels, and are suitable for high microwave power applications. An important advantage of these devices over AlGaN/GaN HEMTs is that the transconductance vs. gate voltage profile can be tailored by compositional grading for better large-signal linearity.

    摘要翻译: 新型GaN / AlGaN金属半导体场效应晶体管(MESFET)结构在通道中没有任何杂质掺杂生长。 通过在一定距离(例如)1000处将通道区域从GaN线性地分级至Al 0.3 Ga 0.7 N来产生高迁移率极化诱导的体沟道电荷。 在DC和RF条件下制造和测试偏振掺杂场效应晶体管(PolFET)。 在直流条件下观察到电流密度为850mA / mm,跨导为93mS / mm。 0.7mm门极长度器件的小信号表征具有截止频率ftau = 19GHz,fmax = 46GHz的最大振荡。 PolFET比具有杂质掺杂通道的可比MESFET性能更好,适用于高微波功率应用。 这些器件对AlGaN / GaN HEMT的一个重要优点是跨导与栅极电压分布可以通过组合分级来定制,以获得更好的大信号线性度。

    METHOD TO FABRICATE III-N SEMICONDUCTOR DEVICES ON THE N-FACE OF LAYERS WHICH ARE GROWN IN THE III-FACE DIRECTION USING WAFER BONDING AND SUBSTRATE REMOVAL
    6.
    发明申请
    METHOD TO FABRICATE III-N SEMICONDUCTOR DEVICES ON THE N-FACE OF LAYERS WHICH ARE GROWN IN THE III-FACE DIRECTION USING WAFER BONDING AND SUBSTRATE REMOVAL 审中-公开
    使用波形焊接和基板去除在III面形成的层的N面上制造III-N半导体器件的方法

    公开(公告)号:US20090085065A1

    公开(公告)日:2009-04-02

    申请号:US12059907

    申请日:2008-03-31

    摘要: A method for fabricating III-N semiconductor devices on the N-face of layers comprising (a) growing a III-nitride semiconductor device structure in a Ga-polar direction on a substrate, (b) attaching a Ga face of the III-nitride semiconductor device structure to a host substrate, and (c) removing the substrate to expose the N-face surface of the III-nitride semiconductor device structure. An N-polar (000-1) oriented III-nitride semiconductor device is also disclosed, comprising one or more (000-1) oriented nitride layers, each having an N-face opposite a group III-face, wherein at least one N-face is an at least partially exposed N-face, and a host substrate attached to one of the group III-faces.

    摘要翻译: 一种用于在层的N面上制造III-N半导体器件的方法,包括(a)在衬底上生长Ga极性方向上的III族氮化物半导体器件结构,(b)将III族氮化物的Ga面 半导体器件结构,以及(c)去除衬底以露出III族氮化物半导体器件结构的N面。 还公开了一种N极(000-1)取向的III族氮化物半导体器件,其包括一个或多个(000-1)取向的氮化物层,每个具有与III族面相反的N面,其中至少一个N 表面是至少部分暴露的N面,以及附着到III组面中的一个的主体衬底。

    Heterostructure device and associated method
    7.
    发明授权
    Heterostructure device and associated method 有权
    异质结构装置及相关方法

    公开(公告)号:US08697506B2

    公开(公告)日:2014-04-15

    申请号:US13418566

    申请日:2012-03-13

    IPC分类号: H01L21/335

    摘要: A method of manufacturing a heterostructure device is provided that includes implantation of ions into a portion of a surface of a multi-layer structure. Iodine ions are implanted between a first region and a second region to form a third region. A charge is depleted from the two dimensional electron gas (2DEG) channel in the third region to form a reversibly electrically non-conductive pathway from the first region to the second region. On applying a voltage potential to a gate electrode proximate to the third region allows electrical current to flow from the first region to the second region.

    摘要翻译: 提供了一种制造异质结构器件的方法,其包括将离子注入到多层结构的表面的一部分中。 碘离子注入第一区域和第二区域之间以形成第三区域。 电荷从第三区域中的二维电子气(2DEG)通道中消耗,以形成从第一区域到第二区域的可逆的非导电通路。 在向靠近第三区域的栅电极施加电压电位时,允许电流从第一区域流到第二区域。

    Heterostructure device and associated method
    8.
    发明授权
    Heterostructure device and associated method 有权
    异质结构装置及相关方法

    公开(公告)号:US08159002B2

    公开(公告)日:2012-04-17

    申请号:US11961532

    申请日:2007-12-20

    IPC分类号: H01L29/66

    摘要: A heterostructure device includes a semiconductor multi-layer structure that has a first region, a second region and a third region. The first region is coupled to a source electrode and the second region is coupled to a drain electrode. The third region is disposed between the first region and the second region. The third region provides a switchable electrically conductive pathway from the source electrode to the drain electrode. The third region includes iodine ions. A system includes a heterostructure field effect transistor that includes the device.

    摘要翻译: 异质结构器件包括具有第一区域,第二区域和第三区域的半导体多层结构。 第一区域耦合到源电极,第二区域耦合到漏电极。 第三区域设置在第一区域和第二区域之间。 第三区域提供从源电极到漏电极的可切换导电路径。 第三区域包括碘离子。 一种系统包括包括该器件的异质结构场效应晶体管。

    HETEROSTRUCTURE DEVICE AND ASSOCIATED METHOD
    9.
    发明申请
    HETEROSTRUCTURE DEVICE AND ASSOCIATED METHOD 有权
    异体结构设备及相关方法

    公开(公告)号:US20090159929A1

    公开(公告)日:2009-06-25

    申请号:US11961532

    申请日:2007-12-20

    IPC分类号: H01L29/78 H01L21/335

    摘要: A heterostructure device includes a semiconductor multi-layer structure that has a first region, a second region and a third region. The first region is coupled to a source electrode and the second region is coupled to a drain electrode. The third region is disposed between the first region and the second region. The third region provides a switchable electrically conductive pathway from the source electrode to the drain electrode. The third region includes iodine ions. A system includes a heterostructure field effect transistor that includes the device.

    摘要翻译: 异质结构器件包括具有第一区域,第二区域和第三区域的半导体多层结构。 第一区域耦合到源电极,第二区域耦合到漏电极。 第三区域设置在第一区域和第二区域之间。 第三区域提供从源电极到漏电极的可切换导电路径。 第三区域包括碘离子。 一种系统包括包括该器件的异质结构场效应晶体管。