Method using low temperature wafer bonding to fabricate transistors with heterojunctions of Si(Ge) to III-N materials
    52.
    发明授权
    Method using low temperature wafer bonding to fabricate transistors with heterojunctions of Si(Ge) to III-N materials 失效
    使用低温晶片接合制造具有Si(Ge)至III-N材料的异质结的晶体管的方法

    公开(公告)号:US08558285B2

    公开(公告)日:2013-10-15

    申请号:US13069725

    申请日:2011-03-23

    IPC分类号: H01L29/72

    摘要: A method for fabricating an electronic device, comprising wafer bonding a first semiconductor material to a III-nitride semiconductor, at a temperature below 550° C., to form a device quality heterojunction between the first semiconductor material and the III-nitride semiconductor, wherein the first semiconductor material is different from the III-nitride semiconductor and is selected for superior properties, or preferred integration or fabrication characteristics in the injector region as compared to the III-nitride semiconductor.

    摘要翻译: 一种制造电子器件的方法,包括在低于550℃的温度下将第一半导体材料晶体结合到III族氮化物半导体,以在第一半导体材料和III族氮化物半导体之间形成器件质量异质结,其中 第一半导体材料与III族氮化物半导体不同,并且与III族氮化物半导体相比被选择用于喷射器区域中的优异性能或优选的集成或制造特性。

    Low resistance tunnel junctions in wide band gap materials and method of making same
    55.
    发明授权
    Low resistance tunnel junctions in wide band gap materials and method of making same 有权
    宽带隙材料中的低电阻隧道结及其制造方法

    公开(公告)号:US08124957B2

    公开(公告)日:2012-02-28

    申请号:US11360166

    申请日:2006-02-22

    IPC分类号: H01L29/06

    摘要: A low resistance tunnel junction that uses a natural polarization dipole associated with dissimilar materials to align a conduction band to a valence band is disclosed. Aligning the conduction band to the valence band of the junction encourages tunneling across the junction. The tunneling is encouraged, because the dipole space charge bends the energy bands, and shortens a tunnel junction width charge carriers must traverse to tunnel across the junction. Placing impurities within or near the tunnel junction that may form deep states in the junction may also encourage tunneling in a tunnel junction. These states shorten the distance charge carriers must traverse across the tunnel junction.

    摘要翻译: 公开了一种低电阻隧道结,其使用与不同材料相关联的自然极化偶极子将导带与价带对准。 将导带与结点的价带对准,促进穿越结的隧穿。 鼓励隧道,因为偶极空间电荷弯曲能带,并缩短隧道结宽度,电荷载流子必须穿过穿越交界处的隧道。 将杂质置于隧道结内或其附近可能形成深交界处的深部状态也可能鼓励在隧道结中隧道。 这些状态缩短了电荷载体必须穿过隧道结的距离。

    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
    56.
    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。

    High current, high voltage breakdown field effect transistor
    58.
    发明授权
    High current, high voltage breakdown field effect transistor 失效
    大电流,高压击穿场效应晶体管

    公开(公告)号:US5084743A

    公开(公告)日:1992-01-28

    申请号:US494239

    申请日:1990-03-15

    摘要: The gate voltage breakdown of an integrated circuit field effect transistor, especially a compound semiconductor metal semiconductor field effect transistor (MESFET) and high electron mobility transistor (HEMT) is dramatically increased by forming an electron trap layer on the surface of the device, under the gate contact and extending beyond the gate contact towards the drain contact. The electron trap layer is preferably a high resisitivity lattice matched monocrystalline layer having at least 10.sup.18 traps per cubic centimeter. For gallium arsenide based transistors, the electron trap layer is preferably formed by low temperature molecular beam epitaxy (MBE) of gallium and arsenic fluxes, to produce a monocrystalline gallium arsenide layer having 1% excess arsenic. For indium phosphide based transistors, the electron trap layer is preferably formed by low temperature MBE of aluminum, indium and arsenic fluxes to produce a monocrystalline aluminum indium arsenide layer having 1% excess arsenic.

    摘要翻译: 集成电路场效应晶体管,特别是化合物半导体金属半导体场效应晶体管(MESFET)和高电子迁移率晶体管(HEMT)的栅极电压击穿通过在器件的表面上形成电子俘获层而显着增加, 栅极接触并延伸超过栅极接触到漏极接触。 电子捕获层优选是具有至少1018个陷阱/立方厘米的高电阻率晶格匹配单晶层。 对于基于砷化镓的晶体管,优选通过镓和砷通量的低温分子束外延(MBE)形成电子陷阱层,以产生具有1%过量砷的单晶砷化镓层。 对于基于磷化铟的晶体管,电子捕获层优选由铝,铟和砷通量的低温MBE形成,以产生具有1%过量砷的单晶铝砷化铟层。

    Microelectronic electron emitter
    59.
    发明授权
    Microelectronic electron emitter 失效
    微电子发射体

    公开(公告)号:US5077597A

    公开(公告)日:1991-12-31

    申请号:US568901

    申请日:1990-08-17

    申请人: Umesh K. Mishra

    发明人: Umesh K. Mishra

    IPC分类号: H01J1/308

    CPC分类号: B82Y15/00 H01J1/308

    摘要: A planar doped barrier region of semiconductor material is coupled to a vacuum or gaseous region to provide electron emission from the planar doped barrier region into the vacuum or gaseous region. When a voltage is applied across the planar doped barrier region electrons flow from one end of the region to another. This flow results in the emission of electrons if the work function of the emission surface is less than the bandgap of the semiconductor material. The device of the present invention can be used as a vacuum microelectronic emitter, a vacuum microelectronic transistor, light source, klystron, or travelling wave tube.

    摘要翻译: 半导体材料的平面掺杂阻挡区域耦合到真空或气体区域以提供从平面掺杂阻挡区域进入真空或气态区域的电子发射。 当跨平面掺杂阻挡区域施加电压时,电子从该区域的一端流向另一端。 如果发射表面的功函数小于半导体材料的带隙,则该流动导致电子的发射。 本发明的器件可以用作真空微电子发射器,真空微电子晶体管,光源,速调管或行波管。

    Polarization-induced barriers for N-face nitride-based electronics
    60.
    发明授权
    Polarization-induced barriers for N-face nitride-based electronics 失效
    用于N面氮化物基电子器件的极化诱导屏障

    公开(公告)号:US08039352B2

    公开(公告)日:2011-10-18

    申请号:US12127661

    申请日:2008-05-27

    摘要: A method for fabricating a potential barrier for a nitrogen-face (N-face) nitride-based electronic device, comprising using a thickness and polarization induced electric field of a III-nitride interlayer, positioned between a first III-nitride layer and a second III-nitride layer, to shift, e.g., raise or lower, the first III-nitride layer's energy band with respect to the second III-nitride layer's energy band by a pre-determined amount. The first III-nitride layer and second III-nitride layer each have a higher or lower polarization coefficient than the III-nitride interlayer's polarization coefficient.

    摘要翻译: 一种用于制造氮 - 面(N面)氮化物基电子器件的势垒的方法,包括使用位于第一III族氮化物层和第二层氮化物层之间的III族氮化物中间层的厚度和极化感应电场 III族氮化物层相对于第二III族氮化物层的能带移动(例如)升高或降低第一III族氮化物层的能带预定量。 第一III族氮化物层和第二III族氮化物层各自具有比III族氮化物夹层的极化系数更高或更低的偏振系数。