FABRICATION OF FLOATING GUARD RINGS USING SELECTIVE REGROWTH
    10.
    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。