FILM DEPOSITION APPARATUS
    33.
    发明申请
    FILM DEPOSITION APPARATUS 审中-公开
    胶片沉积装置

    公开(公告)号:US20120006263A1

    公开(公告)日:2012-01-12

    申请号:US12999973

    申请日:2009-08-06

    Abstract: When a film is to be deposited on a semiconductor substrate or the like in a heating ambient, the semiconductor substrate is caused to warp (curve) to a considerable extent merely due to an increased temperature. The warpage leads to problems such as degradation of the homogeneity of the quality of the film deposited on the substrate and a high possibility of generation of a crack in the substrate. Accordingly, a film deposition apparatus of the present invention heats the substrate both from above and from below a main surface of the substrate so that a temperature gradient (temperature difference) between the upper side and the lower side of the main surface is reduced and the warpage of the substrate is suppressed. More preferably a measurement unit for measuring the curvature or warpage of the substrate is included.

    Abstract translation: 当在加热环境中将膜沉积在半导体衬底等上时,仅仅由于温度升高,使半导体衬底在很大程度上翘曲(曲线)。 翘曲导致诸如沉积在基底上的膜的质量均匀性降低和在基底中产生裂纹的可能性高的问题。 因此,本发明的成膜装置从基板的主面的上方和下方加热基板,使得主表面的上侧和下侧之间的温度梯度(温度差)减小,并且 抑制了基板的翘曲。 更优选地包括用于测量基板的曲率或翘曲的测量单元。

    EPITAXIAL WAFER, METHOD FOR MANUFACTURING GALLIUM NITRIDE SEMICONDUCTOR DEVICE, GALLIUM NITRIDE SEMICONDUCTOR DEVICE AND GALLIUM OXIDE WAFER
    34.
    发明申请
    EPITAXIAL WAFER, METHOD FOR MANUFACTURING GALLIUM NITRIDE SEMICONDUCTOR DEVICE, GALLIUM NITRIDE SEMICONDUCTOR DEVICE AND GALLIUM OXIDE WAFER 失效
    外延膜,制造氮化镓半导体器件的方法,氮化镓半导体器件和氧化铝膜

    公开(公告)号:US20110315998A1

    公开(公告)日:2011-12-29

    申请号:US13148543

    申请日:2010-02-04

    Abstract: A gallium nitride based semiconductor device is provided which includes a gallium nitride based semiconductor film with a flat c-plane surface provided on a gallium oxide wafer. A light emitting diode LED includes a gallium oxide support base 32 having a primary surface 32a of monoclinic gallium oxide, and a laminate structure 33 of Group III nitride. A semiconductor mesa of the laminate structure 33 includes a low-temperature GaN buffer layer 35, an n-type GaN layer 37, an active layer 39 of a quantum well structure, and a p-type gallium nitride based semiconductor layer 37. The p-type gallium nitride based semiconductor layer 37 includes, for example, a p-type AlGaN electron block layer and a p-type GaN contact layer. The primary surface 32a of the gallium oxide support base 32 is inclined at an angle of not less than 2 degrees and not more than 4 degrees relative to a (100) plane of monoclinic gallium oxide. Owing to this inclination, the gallium nitride based semiconductor epitaxially grown on the primary surface 32a of the gallium oxide support base has a flat surface.

    Abstract translation: 提供了一种氮化镓基半导体器件,其包括在氧化镓晶片上设置有平坦c面的氮化镓基半导体膜。 发光二极管LED包括具有单斜氧化镓的主表面32a的氧化镓载体基底32和III族氮化物的叠层结构33。 层压结构33的半导体台面包括低温GaN缓冲层35,n型GaN层37,量子阱结构的有源层39和p型氮化镓基半导体层37. p 型氮化镓系半导体层37例如包括p型AlGaN电子阻挡层和p型GaN接触层。 氧化镓载体基体32的主表面32a相对于单斜晶系氧化镓的(100)面倾斜2度以上4度以下。 由于该倾斜,在氧化镓载体基体的主表面32a上外延生长的氮化镓基半导体具有平坦的表面。

    Vertical gallium nitride semiconductor device and epitaxial substrate
    36.
    发明授权
    Vertical gallium nitride semiconductor device and epitaxial substrate 有权
    垂直氮化镓半导体器件和外延衬底

    公开(公告)号:US07872285B2

    公开(公告)日:2011-01-18

    申请号:US11569798

    申请日:2006-03-01

    Abstract: Affords epitaxial substrates for vertical gallium nitride semiconductor devices that have a structure in which a gallium nitride film of n-type having a desired low carrier concentration can be provided on a gallium nitride substrate of n type. A gallium nitride epitaxial film (65) is provided on a gallium nitride substrate (63). A layer region (67) is provided in the gallium nitride substrate (63) and the gallium nitride epitaxial film (65). An interface between the gallium nitride substrate (43) and the gallium nitride epitaxial film (65) is positioned in the layer region (67). In the layer region (67), a peak value of donor impurity along an axis from the gallium nitride substrate (63) to the gallium nitride epitaxial film (65) is 1×1018 cm−3 or more. The donor impurity is at least either silicon or germanium.

    Abstract translation: 提供具有这样的结构的垂直氮化镓半导体器件的外延衬底,其中可以在n型氮化镓衬底上提供具有期望的低载流子浓度的n型氮化镓膜。 氮化镓外延膜(65)设置在氮化镓衬底(63)上。 在氮化镓衬底(63)和氮化镓外延膜(65)中设置一个层区(67)。 氮化镓衬底(43)和氮化镓外延膜(65)之间的界面位于层区(67)中。 在层区域(67)中,供体杂质从氮化镓衬底(63)到氮化镓外延膜(65)的峰的峰值为1×1018cm-3以上。 供体杂质至少是硅或锗。

    High Electron Mobility Transistor, Field-Effect Transistor, and Epitaxial Substrate
    37.
    发明申请
    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基板

    公开(公告)号:US20100230723A1

    公开(公告)日:2010-09-16

    申请号:US12786440

    申请日:2010-05-25

    Abstract: 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.

    Abstract translation: 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衬底(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))。 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。

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
    40.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME 有权
    半导体器件及其制造方法

    公开(公告)号:US20090051007A1

    公开(公告)日:2009-02-26

    申请号:US12185578

    申请日:2008-08-04

    Abstract: A semiconductor device is composed of: an interconnect made of a first conductive film and a second conductive film that are stacked in sequence from the interconnect underside on an insulating film formed on a substrate; and a capacitor composed of a lower capacitor electrode made of the first conductive film, a dielectric film formed on the lower capacitor electrode, and an upper capacitor electrode made of the second conductive film and formed on the dielectric film.

    Abstract translation: 半导体器件由以下部分构成:由第一导电膜和第二导电膜构成的互连,其从形成在基板上的绝缘膜上的互连下侧依次层叠; 以及由第一导电膜制成的下部电容电极,形成在下部电容电极上的电介质膜和形成在该电介质膜上的由上述第二导电膜构成的上部电容电极构成的电容器。

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