GaN-based Schottky barrier diode with field plate
    21.
    发明授权
    GaN-based Schottky barrier diode with field plate 有权
    具有场板的GaN基肖特基势垒二极管

    公开(公告)号:US08643134B2

    公开(公告)日:2014-02-04

    申请号:US13300028

    申请日:2011-11-18

    IPC分类号: H01L29/47

    摘要: A method for fabricating a III-nitride semiconductor device includes providing a III-nitride substrate having a first surface and a second surface opposing the first surface, forming a III-nitride epitaxial layer coupled to the first surface of the III-nitride substrate, and removing at least a portion of the III-nitride epitaxial layer to form a first exposed surface. The method further includes forming a dielectric layer coupled to the first exposed surface, removing at least a portion of the dielectric layer, and forming a metallic layer coupled to a remaining portion of the dielectric layer such that the remaining portion of the dielectric layer is disposed between the III-nitride epitaxial layer and the metallic layer.

    摘要翻译: 一种制造III族氮化物半导体器件的方法包括提供具有第一表面和与第一表面相对的第二表面的III族氮化物衬底,形成耦合到III族氮化物衬底的第一表面的III族氮化物外延层,以及 去除所述III族氮化物外延层的至少一部分以形成第一暴露表面。 该方法还包括形成耦合到第一暴露表面的电介质层,去除电介质层的至少一部分,以及形成耦合到电介质层的剩余部分的金属层,使得电介质层的剩余部分被布置 在III族氮化物外延层和金属层之间。

    FABRICATION OF FLOATING GUARD RINGS USING SELECTIVE REGROWTH
    22.
    发明申请
    FABRICATION OF FLOATING GUARD RINGS USING SELECTIVE REGROWTH 失效
    使用选择性重制的浮动护环的制造

    公开(公告)号:US20130164893A1

    公开(公告)日:2013-06-27

    申请号:US13335355

    申请日:2011-12-22

    IPC分类号: H01L21/337 H01L21/20

    摘要: A method for fabricating edge termination structures in gallium nitride (GaN) materials includes providing a n-type GaN substrate having a first surface and a second surface, forming an n-type GaN epitaxial layer coupled to the first surface of the n-type GaN substrate, and forming a growth mask coupled to the n-type GaN epitaxial layer. The method further includes patterning the growth mask to expose at least a portion of the n-type GaN epitaxial layer, and forming at least one p-type GaN epitaxial structure coupled to the at least a portion of the n-type GaN epitaxial layer. The at least one p-type GaN epitaxial structure comprises at least one portion of an edge termination structure. The method additionally includes forming a first metal structure electrically coupled to the second surface of the n-type GaN substrate.

    摘要翻译: 一种用于制造氮化镓(GaN)材料中的边缘端接结构的方法包括提供具有第一表面和第二表面的n型GaN衬底,形成耦合到n型GaN的第一表面的n型GaN外延层 并且形成耦合到n型GaN外延层的生长掩模。 该方法进一步包括图案化生长掩模以暴露n型GaN外延层的至少一部分,以及形成耦合到n型GaN外延层的至少一部分的至少一个p型GaN外延结构。 所述至少一个p型GaN外延结构包括边缘端接结构的至少一部分。 该方法还包括形成电耦合到n型GaN衬底的第二表面的第一金属结构。

    METHOD AND SYSTEM FOR A GAN VERTICAL JFET UTILIZING A REGROWN GATE
    26.
    发明申请
    METHOD AND SYSTEM FOR A GAN VERTICAL JFET UTILIZING A REGROWN GATE 有权
    用于使用注射门的GAN垂直JFET的方法和系统

    公开(公告)号:US20130032811A1

    公开(公告)日:2013-02-07

    申请号:US13198655

    申请日:2011-08-04

    摘要: A vertical III-nitride field effect transistor includes a drain comprising a first III-nitride material, a drain contact electrically coupled to the drain, and a drift region comprising a second III-nitride material coupled to the drain and disposed adjacent to the drain along a vertical direction. The field effect transistor also includes a channel region comprising a third III-nitride material coupled to the drift region, a gate region at least partially surrounding the channel region, and a gate contact electrically coupled to the gate region. The field effect transistor further includes a source coupled to the channel region and a source contact electrically coupled to the source. The channel region is disposed between the drain and the source along the vertical direction such that current flow during operation of the vertical III-nitride field effect transistor is along the vertical direction.

    摘要翻译: 垂直III族氮化物场效应晶体管包括:包含第一III族氮化物材料的漏极,与漏极电耦合的漏极接触点;以及漂移区域,包括耦合到漏极并邻近漏极设置的第二III族氮化物材料 垂直方向 场效应晶体管还包括沟道区,该沟道区包括耦合到漂移区的第三III族氮化物材料,至少部分围绕沟道区的栅极区和电耦合到栅极区的栅极接触。 场效应晶体管还包括耦合到沟道区的源极和电耦合到源极的源极接触。 沟道区域沿着垂直方向设置在漏极和源极之间,使得垂直III族氮化物场效应晶体管的工作期间的电流沿垂直方向。

    Fabrication of floating guard rings using selective regrowth
    30.
    发明授权
    Fabrication of floating guard rings using selective regrowth 失效
    使用选择性再生长制造浮动护环

    公开(公告)号:US08592298B2

    公开(公告)日:2013-11-26

    申请号:US13335355

    申请日:2011-12-22

    IPC分类号: H01L21/3205

    摘要: A method for fabricating edge termination structures in gallium nitride (GaN) materials includes providing a n-type GaN substrate having a first surface and a second surface, forming an n-type GaN epitaxial layer coupled to the first surface of the n-type GaN substrate, and forming a growth mask coupled to the n-type GaN epitaxial layer. The method further includes patterning the growth mask to expose at least a portion of the n-type GaN epitaxial layer, and forming at least one p-type GaN epitaxial structure coupled to the at least a portion of the n-type GaN epitaxial layer. The at least one p-type GaN epitaxial structure comprises at least one portion of an edge termination structure. The method additionally includes forming a first metal structure electrically coupled to the second surface of the n-type GaN substrate.

    摘要翻译: 一种用于制造氮化镓(GaN)材料中的边缘端接结构的方法包括提供具有第一表面和第二表面的n型GaN衬底,形成耦合到n型GaN的第一表面的n型GaN外延层 并且形成耦合到n型GaN外延层的生长掩模。 该方法进一步包括图案化生长掩模以暴露n型GaN外延层的至少一部分,以及形成耦合到n型GaN外延层的至少一部分的至少一个p型GaN外延结构。 所述至少一个p型GaN外延结构包括边缘端接结构的至少一部分。 该方法还包括形成电耦合到n型GaN衬底的第二表面的第一金属结构。