Method for Forming Carbonaceous Material Protrusion and Carbonaceous Material Protrusion
    4.
    发明申请
    Method for Forming Carbonaceous Material Protrusion and Carbonaceous Material Protrusion 审中-公开
    形成碳质材料突起和碳质材料突起的方法

    公开(公告)号:US20080044647A1

    公开(公告)日:2008-02-21

    申请号:US10594718

    申请日:2005-03-24

    摘要: This method of forming a carbonaceous material projection structure includes: the step of applying a resist 11 onto a diamond substrate 10; the step of forming holes 12 in the applied resist 11, the holes 12 being provided according to a predetermined arrangement, a wall 12b of each of the holes 12 being inversely tapered from an aperture 12a toward a bottom; the step of depositing a mask material through the aperture 12a to form a mask deposition 14 in each of the holes 12; the step of lifting off a mask material 13 deposited on the resist 11 together with the resist 11; and etching the diamond substrate 10 using the mask deposition 14 as a mask to form a carbonaceous material projection.

    摘要翻译: 这种形成碳质材料投影结构的方法包括:将抗蚀剂11涂覆在金刚石基板10上的步骤; 在施加的抗蚀剂11中形成孔12的步骤,孔12根据预定布置设置,每个孔12的壁12b从孔12a向底部呈倒锥形; 通过孔12a沉积掩模材料以在每个孔12中形成掩模沉积14的步骤; 剥离与抗蚀剂11一起沉积在抗蚀剂11上的掩模材料13的步骤; 并使用掩模沉积14作为掩模蚀刻金刚石基板10,以形成碳质材料凸起。

    Schottky barrier diode
    5.
    发明授权
    Schottky barrier diode 有权
    肖特基势垒二极管

    公开(公告)号:US08581359B2

    公开(公告)日:2013-11-12

    申请号:US12516714

    申请日:2008-08-22

    IPC分类号: H01L29/47 H01L29/02

    摘要: A Schottky barrier diode includes a GaN freestanding substrate having a front surface, a GaN epitaxial layer deposited on the front surface, and an insulation layer deposited on the GaN epitaxial layer at a front surface and having an opening. Furthermore, the Schottky barrier diode also includes an electrode. The electrode is configured by a Schottky electrode provided in the opening in contact with the GaN epitaxial layer, and a field plate electrode connected to the Schottky electrode and also overlapping the insulation layer. The GaN freestanding substrate has a dislocation density of at most 1×108 cm−2.

    摘要翻译: 肖特基势垒二极管包括具有前表面的GaN独立衬底,沉积在前表面上的GaN外延层和在前表面上沉积在GaN外延层上并具有开口的绝缘层。 此外,肖特基势垒二极管还包括电极。 电极由设置在与GaN外延层接触的开口中的肖特基电极和连接到肖特基电极并且还与绝缘层重叠的场板电极构成。 GaN独立基板的位错密度为1×108cm-2以下。

    High electron mobility transistor, field-effect transistor, and epitaxial substrate
    6.
    发明授权
    High electron mobility transistor, field-effect transistor, and epitaxial substrate 有权
    高电子迁移率晶体管,场效应晶体管和外延衬底

    公开(公告)号:US07884393B2

    公开(公告)日:2011-02-08

    申请号:US12786440

    申请日:2010-05-25

    IPC分类号: H01L29/778

    摘要: Affords high electron mobility transistors having a high-purity channel layer and a high-resistance buffer layer. A high electron mobility transistor (11) is provided with a supporting substrate (13) composed of gallium nitride, a buffer layer (15) composed of a first gallium nitride semiconductor, a channel layer (17) composed of a second gallium nitride semiconductor, a semiconductor layer (19) composed of a third gallium nitride semiconductor, and electrode structures (a gate electrode (21), a source electrode (23) and a drain electrode (25) for the transistor (11). The band gap of the third gallium nitride semiconductor is broader than that of the second gallium nitride semiconductor. The carbon concentration NC1 of the first gallium nitride semiconductor is 4×1017 cm−3 or more. The carbon concentration NC2 of the second gallium nitride semiconductor is less than 4×1016 cm−3.

    摘要翻译: 提供具有高纯度沟道层和高电阻缓冲层的高电子迁移率晶体管。 高电子迁移率晶体管(11)设置有由氮化镓构成的支撑基板(13),由第一氮化镓半导体构成的缓冲层(15),由第二氮化镓半导体构成的沟道层(17) 由第三氮化镓半导体构成的半导体层(19)和用于晶体管(11)的电极结构(栅电极(21),源电极(23)和漏电极(25)),带隙 第三氮化镓半导体的第二氮化镓半导体的碳浓度NC2比第二氮化镓半导体的碳浓度小于4×10 17 cm -3以上, 1016厘米-3。

    Method of manufacturing group III Nitride Transistor
    7.
    发明授权
    Method of manufacturing group III Nitride Transistor 有权
    制造III族氮化物晶体管的方法

    公开(公告)号:US07749828B2

    公开(公告)日:2010-07-06

    申请号:US11571156

    申请日:2006-03-03

    IPC分类号: H01L21/338

    摘要: Affords high electron mobility transistors having a high-purity channel layer and a high-resistance buffer layer. A high electron mobility transistor 11 is provided with a supporting substrate 13 composed of gallium nitride, a buffer layer 15 composed of a first gallium nitride semiconductor, a channel layer 17 composed of a second gallium nitride semiconductor, a semiconductor layer 19 composed of a third gallium nitride semiconductor, and electrode structures (a gate electrode 21, a source electrode 23 and a drain electrode 25) for the transistor 11. The band gap of the third gallium nitride semiconductor is broader than that of the second gallium nitride semiconductor. The carbon concentration NC1 of the first gallium nitride semiconductor is 4×1017 cm−3 or more. The carbon concentration NC2 of the second gallium nitride semiconductor is less than 4×1016 cm−3.

    摘要翻译: 提供具有高纯度沟道层和高电阻缓冲层的高电子迁移率晶体管。 高电子迁移率晶体管11设置有由氮化镓构成的支撑基板13,由第一氮化镓半导体构成的缓冲层15,由第二氮化镓半导体构成的沟道层17,由第三氮化镓半导体构成的半导体层19 氮化镓半导体,以及用于晶体管11的电极结构(栅电极21,源电极23和漏电极25)。第三氮化镓半导体的带隙比第二氮化镓半导体的带隙宽。 第一氮化镓半导体的碳浓度NC1为4×1017cm-3以上。 第二氮化镓半导体的碳浓度NC2小于4×1016cm-3。

    SILICON CARBIDE SUBSTRATE
    9.
    发明申请
    SILICON CARBIDE SUBSTRATE 审中-公开
    碳化硅基板

    公开(公告)号:US20120091472A1

    公开(公告)日:2012-04-19

    申请号:US13377360

    申请日:2011-02-23

    IPC分类号: H01L29/24

    摘要: A first circular surface is provided with a first notch portion having a first shape. A second circular surface is opposite to the first circular surface and is provided with a second notch portion having a second shape. A side surface connects the first circular surface and the second circular surface to each other. The first notch portion and the second notch portion are opposite to each other. The side surface has a first depression connecting the first notch portion and the second notch portion to each other.

    摘要翻译: 第一圆形表面设置有具有第一形状的第一切口部分。 第二圆形表面与第一圆形表面相对,并且设置有具有第二形状的第二切口部分。 侧表面将第一圆形表面和第二圆形表面彼此连接。 第一切口部和第二切口部彼此相对。 侧面具有将第一切口部和第二切口部彼此连接的第一凹部。