Gallium nitride semiconductor devices and method making thereof
    2.
    发明授权
    Gallium nitride semiconductor devices and method making thereof 有权
    氮化镓半导体器件及其制造方法

    公开(公告)号:US08946771B2

    公开(公告)日:2015-02-03

    申请号:US13292487

    申请日:2011-11-09

    摘要: The present disclosure relates to an enhancement mode gallium nitride (GaN) transistor device. The GaN transistor device has an electron supply layer located on top of a GaN layer. An etch stop layer (e.g., AlN) is disposed above the electron supply layer. A gate structure is formed on top of the etch stop layer, such that the bottom surface of the gate structure is located vertically above the etch stop layer. The position of etch stop layer in the GaN transistor device stack allows it to both enhance gate definition during processing (e.g., selective etching of the gate structure located on top of the AlN layer) and to act as a gate insulator that reduces gate leakage of the GaN transistor device.

    摘要翻译: 本发明涉及增强型氮化镓(GaN)晶体管器件。 GaN晶体管器件具有位于GaN层顶部的电子供应层。 蚀刻停止层(例如,AlN)设置在电子供应层上方。 栅极结构形成在蚀刻停止层的顶部,使得栅极结构的底表面垂直位于蚀刻停止层上方。 GaN晶体管器件堆叠中的蚀刻停止层的位置允许其在处理期间增强栅极定义(例如,选择性蚀刻位于AlN层顶部的栅极结构),并且用作栅极绝缘体,以减小栅极泄漏 GaN晶体管器件。

    Gallium Nitride Semiconductor Devices and Method Making Thereof
    4.
    发明申请
    Gallium Nitride Semiconductor Devices and Method Making Thereof 有权
    氮化镓半导体器件及其制造方法

    公开(公告)号:US20130112986A1

    公开(公告)日:2013-05-09

    申请号:US13292487

    申请日:2011-11-09

    摘要: The present disclosure relates to an enhancement mode gallium nitride (GaN) transistor device. The GaN transistor device has an electron supply layer located on top of a GaN layer. An etch stop layer (e.g., AlN) is disposed above the electron supply layer. A gate structure is formed on top of the etch stop layer, such that the bottom surface of the gate structure is located vertically above the etch stop layer. The position of etch stop layer in the GaN transistor device stack allows it to both enhance gate definition during processing (e.g., selective etching of the gate structure located on top of the AlN layer) and to act as a gate insulator that reduces gate leakage of the GaN transistor device.

    摘要翻译: 本发明涉及增强型氮化镓(GaN)晶体管器件。 GaN晶体管器件具有位于GaN层顶部的电子供应层。 蚀刻停止层(例如,AlN)设置在电子供应层上方。 栅极结构形成在蚀刻停止层的顶部,使得栅极结构的底表面垂直位于蚀刻停止层上方。 GaN晶体管器件堆叠中的蚀刻停止层的位置允许其在处理期间增强栅极定义(例如,选择性蚀刻位于AlN层顶部的栅极结构),并且用作栅极绝缘体,以减小栅极泄漏 GaN晶体管器件。

    Semiconductor structure and method of forming the same
    5.
    发明授权
    Semiconductor structure and method of forming the same 有权
    半导体结构及其形成方法

    公开(公告)号:US09018677B2

    公开(公告)日:2015-04-28

    申请号:US13270502

    申请日:2011-10-11

    摘要: A semiconductor structure includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer and different from the first III-V compound layer in composition. A carrier channel is located between the first III-V compound layer and the second III-V compound layer. A source feature and a drain feature are disposed on the second III-V compound layer. A gate electrode is disposed over the second III-V compound layer between the source feature and the drain feature. A carrier channel depleting layer is disposed on the second III-V compound layer. The carrier channel depleting layer is deposited using plasma and a portion of the carrier channel depleting layer is under at least a portion of the gate electrode.

    摘要翻译: 半导体结构包括第一III-V族化合物层。 第二III-V化合物层设置在第一III-V化合物层上,并且与组合物中的第一III-V化合物层不同。 载体通道位于第一III-V化合物层和第二III-V化合物层之间。 源特征和漏极特征设置在第二III-V复合层上。 栅电极设置在源特征和漏极特征之间的第二III-V化合物层之上。 载体通道耗尽层设置在第二III-V化合物层上。 使用等离子体沉积载流子通道耗尽层,并且载流子通道耗尽层的一部分位于栅电极的至少一部分之下。

    High electron mobility transistor and method of forming the same
    6.
    发明授权
    High electron mobility transistor and method of forming the same 有权
    高电子迁移率晶体管及其形成方法

    公开(公告)号:US08841703B2

    公开(公告)日:2014-09-23

    申请号:US13297525

    申请日:2011-11-16

    摘要: A semiconductor structure includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer and is different from the first III-V compound layer in composition. A carrier channel is located between the first III-V compound layer and the second III-V compound layer. A source feature and a drain feature are disposed on the second III-V compound layer. A gate electrode is disposed over the second III-V compound layer between the source feature and the drain feature. A fluorine region is embedded in the second III-V compound layer under the gate electrode. A gate dielectric layer is disposed over the second III-V compound layer. The gate dielectric layer has a fluorine segment on the fluorine region and under at least a portion of the gate electrode.

    摘要翻译: 半导体结构包括第一III-V族化合物层。 第二III-V化合物层设置在第一III-V化合物层上,并且与组合物中的第一III-V化合物层不同。 载体通道位于第一III-V化合物层和第二III-V化合物层之间。 源特征和漏极特征设置在第二III-V复合层上。 栅电极设置在源特征和漏极特征之间的第二III-V化合物层之上。 在栅电极下方的第二III-V化合物层中嵌入有氟区。 栅介质层设置在第二III-V化合物层上。 栅极电介质层在氟区域上具有氟链段,并且在栅电极的至少一部分下方具有氟链段。