Vertical Gallium Nitride Semiconductor Device and Epitaxial Substrate
    21.
    发明申请
    Vertical Gallium Nitride Semiconductor Device and Epitaxial Substrate 有权
    立式氮化镓半导体器件和外延衬底

    公开(公告)号:US20090194796A1

    公开(公告)日:2009-08-06

    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型氮化镓膜的结构的垂直氮化镓半导体器件的外延衬底。 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,施主杂质沿着氮化镓衬底(63)到氮化镓外延膜(65)的轴的峰值为1×10 18 cm -3以上。 供体杂质至少是硅或锗。

    Semiconductor device and method for fabricating the same
    23.
    发明授权
    Semiconductor device and method for fabricating the same 失效
    半导体装置及其制造方法

    公开(公告)号:US07538005B2

    公开(公告)日:2009-05-26

    申请号:US11714195

    申请日:2007-03-06

    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。

    Semiconductor device and method for fabricating the same
    24.
    发明申请
    Semiconductor device and method for fabricating the same 失效
    半导体装置及其制造方法

    公开(公告)号:US20070155147A1

    公开(公告)日:2007-07-05

    申请号:US11714195

    申请日:2007-03-06

    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堆叠; 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。

    Apparatus and method for feeding slurry

    公开(公告)号:US06585560B2

    公开(公告)日:2003-07-01

    申请号:US09731011

    申请日:2000-12-07

    CPC classification number: B24B37/04 B24B57/02

    Abstract: A slurry feeding apparatus includes closed slurry bottle, piping, wet nitrogen generator, wet nitrogen supply pipe, suction and spray nozzles, temperature regulator, flow rate control valves, slurry delivery pump and controller for controlling the operation and flow rate of the slurry delivery pump. While a wafer is being polished by a CMP polisher, the controller continuously operates the pump. On the other hand, while the polisher is idling, the controller starts and stops the pump intermittently at regular intervals. No stirrer like a propeller is inserted into the slurry bottle, but the slurry is stirred up by spraying the slurry through the spray nozzle.

    Electroless plating bath used for forming a wiring of a semiconductor
device, and method of forming a wiring of a semiconductor device
    28.
    发明授权
    Electroless plating bath used for forming a wiring of a semiconductor device, and method of forming a wiring of a semiconductor device 失效
    用于形成半导体器件的布线的无电镀浴,以及形成半导体器件的布线的方法

    公开(公告)号:US5645628A

    公开(公告)日:1997-07-08

    申请号:US502175

    申请日:1995-07-13

    CPC classification number: C23C18/40 C23C18/34 C23C18/44

    Abstract: A contact hole and a wiring groove are formed in an insulating layer formed on a semiconductor substrate. A silver layer is formed inside of the contact hole and the wiring groove and on the insulating layer with the use of an electroless plating bath comprising: silver nitrate containing silver ions; tartaric acid serving as a reducing agent of the silver ions; ethylenediamine serving as a complexing agent of the silver ions; and metallic ions of tetramethylammoniumhydroxide serving as a pH control agent. Then, the silver layer on the insulating layer is removed by a chemical and mechanical polishing method such that an embedded wiring is formed in each of the contact hole and the wiring groove.

    Abstract translation: 在半导体衬底上形成的绝缘层中形成接触孔和布线槽。 通过使用含有银离子的硝酸银的化学镀浴,在接触孔和布线槽内部和绝缘层上形成银层; 酒石酸作为银离子的还原剂; 乙二胺作为银离子的络合剂; 和作为pH调节剂的四甲基氢氧化铵的金属离子。 然后,通过化学和机械抛光方法去除绝缘层上的银层,使得在每个接触孔和布线槽中形成嵌入的布线。

    Method of producing semiconductor device
    29.
    发明授权
    Method of producing semiconductor device 失效
    半导体器件的制造方法

    公开(公告)号:US5455205A

    公开(公告)日:1995-10-03

    申请号:US34763

    申请日:1993-03-19

    Abstract: There is disclosed a method of producing a semiconductor memory device. An interlayer insulation film is formed on a semiconductor substrate including a switching transistor. Then, a memory node pattern reaching an active region of the switching transistor is formed. A cell plate electrode pattern is formed through an insulation film formed on the memory node in such a manner that a value obtained by subtracting a thickness of a polycrystalline silicon film for a cell plate electrode from an overlapping dimension of a memory node pattern and the cell plate electrode pattern is not less than two times larger and not more than ten times larger than a thickness of deposition of a BPSG film. Then, the BPSG film is deposited on an entire surface, and then is caused to viscously flow by a heat treatment. Then, an aluminum wiring is formed on the BPSG film. With this construction, a step of the aluminum wiring in a boundary region between a memory cell array portion and a peripheral circuit portion, or in a word line-backing contact forming region, is decreased, thereby preventing the lowering of the yield of the aluminum wiring which is caused by the cutting of the aluminum wiring and the remaining of a residue of etching for a contact-forming electrode (for example, tungsten).

    Abstract translation: 公开了一种制造半导体存储器件的方法。 在包括开关晶体管的半导体衬底上形成层间绝缘膜。 然后,形成到达开关晶体管的有源区的存储器节点图形。 通过形成在存储节点上的绝缘膜形成单元板电极图案,使得通过从存储器节点图案和单元的重叠尺寸减去用于单元板电极的多晶硅膜的厚度而获得的值 平板电极图案不小于BPSG膜的沉积厚度的两倍以上且不大于十倍。 然后,将BPSG膜沉积在整个表面上,然后通过热处理使其粘稠流动。 然后,在BPSG膜上形成铝布线。 利用这种结构,在存储单元阵列部分和外围电路部分之间或字线 - 背衬接触形成区域中的边界区域中的铝布线的步骤减小,从而防止铝的收率降低 通过切割铝布线引起的布线和剩余的用于接触形成电极(例如钨)的蚀刻残留物。

    Epitaxial wafer, method for manufacturing gallium nitride semiconductor device, gallium nitride semiconductor device and gallium oxide wafer
    30.
    发明授权
    Epitaxial wafer, method for manufacturing gallium nitride semiconductor device, gallium nitride semiconductor device and gallium oxide wafer 失效
    外延晶片,氮化镓半导体器件的制造方法,氮化镓半导体器件和氧化镓晶片

    公开(公告)号:US08592289B2

    公开(公告)日:2013-11-26

    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。

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