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    • 93. 发明申请
    • COMPOUND SEMINCONDUCTOR STRUCTURE
    • 化学结晶结构
    • US20110297957A1
    • 2011-12-08
    • US13209882
    • 2011-08-15
    • Toshihide KikkawaKenji Imanishi
    • Toshihide KikkawaKenji Imanishi
    • H01L29/205
    • H01L29/7787H01L21/02378H01L21/02425H01L21/02458H01L21/0254H01L21/0262H01L29/2003H01L29/66462
    • A method for manufacturing a compound semiconductor structure, includes (a) selecting a conductive SiC substrate in accordance with color and resistivity and (b) epitaxially growing a GaN series compound semiconductor layer on the selected conductive SiC substrate. The step (a) preferably selects a conductive SiC substrate whose main color is green, whose conductivity type is n-type and whose resistivity is 0.08 52 cm to 1×105 Ωcm, or whose main color is black, whose conductivity type is p-type and whose resistivity is 1×103 Ωcm to 1×105Ωcm, or whose main color is blue, whose conductivity type is p-type and whose resistivity is 10 Ωcm to 1×105 Ωcm. The step (b) preferably includes (b-1) growing an AlInGaN layer having a thickness not thinner than 10 μm on the conductive SiC substrate by hydride VPE.
    • 一种化合物半导体结构的制造方法,包括:(a)根据颜色和电阻率选择导电性SiC基板,(b)在选择的导电性SiC基板上外延生长GaN系化合物半导体层。 步骤(a)优选选择导电型为n型,电阻率为0.08×52cm〜1×105Ω·cm的导电性SiC基板,或者主色为黑色,导电性为 p型,其电导率为1×10 3Ω·OHgr·cm〜1×105&OHgr·cm,其主要颜色为蓝色,其导电类型为p型,电阻率为10Ω·cm〜1×105Ω。 步骤(b)优选包括(b-1)通过氢化物VPE在导电SiC衬底上生长厚度不小于10μm的AlInGaN层。
    • 97. 发明申请
    • COMPOUND SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
    • 化合物半导体器件及其制造方法
    • US20100155741A1
    • 2010-06-24
    • US12639539
    • 2009-12-16
    • Toshihiro OHKIToshihide Kikkawa
    • Toshihiro OHKIToshihide Kikkawa
    • H01L29/778H01L29/20
    • H01L29/7787H01L29/2003H01L29/41766H01L29/42316H01L29/66462
    • A compound semiconductor device includes a carrier transit layer including GaN formed over a substrate; a carrier supply layer including GaN formed over the carrier transit layer; a source electrode and a drain electrode formed over the carrier supply layer; a first compound semiconductor layer including N in which a first opening is formed and that is located between the source electrode and the drain electrode over the carrier supply layer; a gate electrode extending from within the first opening to above the first compound semiconductor layer; and an insulator layer having a second opening that is smaller than the first opening, and insulating the gate electrode and the first compound semiconductor layer within the first opening. The gate electrode extends from within the second opening to above the first compound semiconductor layer.
    • 化合物半导体器件包括在衬底上形成的包含GaN的载流子迁移层; 载体供给层,包括在载流子迁移层上形成的GaN; 形成在载体供给层上的源电极和漏电极; 第一化合物半导体层,其包括N,其中形成有第一开口,并且位于载体供给层之间的源电极和漏电极之间; 栅电极,其从所述第一开口内延伸到所述第一化合物半导体层的上方; 以及具有比第一开口小的第二开口的绝缘体层,并且使第一开口内的栅电极和第一化合物半导体层绝缘。 栅电极从第二开口延伸到第一化合物半导体层之上。
    • 100. 发明申请
    • NITRIDE SEMICONDUCTOR DEVICE, DOHERTY AMPLIFIER AND DRAIN VOLTAGE CONTROLLED AMPLIFIER
    • 氮化物半导体器件,DOHERTY放大器和漏极电压控制放大器
    • US20090058532A1
    • 2009-03-05
    • US12173392
    • 2008-07-15
    • Toshihide KikkawaKenji Imanishi
    • Toshihide KikkawaKenji Imanishi
    • H03F3/68
    • H03F1/0288H01L21/02378H01L21/02458H01L21/0254H01L29/1075H01L29/2003H01L29/7787H03F2200/15H03F2200/451H03F2200/543
    • A nitride semiconductor device includes a substrate, a stacked semiconductor structure formed over the substrate and including a electron channel layer of an undoped nitride semiconductor and an electron supplying layer of an n-type nitride semiconductor formed epitaxially over the electron channel layer, the n-type nitride semiconductor having an electron affinity smaller than an electron affinity of said undoped nitride semiconductor and a two-dimensional electron gas being formed in the electron channel layer along an interface to the electron supply layer, a gate electrode formed over the stacked semiconductor structure in correspondence to a channel region, and source and drain electrodes formed over the stacked semiconductor structure in ohmic contact therewith respectively at a first side and a second side of the gate electrode, the stacked semiconductor structure including, between the substrate and the electron channel layer, an n-type conductive layer and a barrier layer containing Al formed consecutively and epitaxially.
    • 氮化物半导体器件包括衬底,在衬底上形成的堆叠半导体结构,并且包括在电子沟道层外部形成的非掺杂氮化物半导体的电子沟道层和n型氮化物半导体的电子供给层, 具有小于所述未掺杂的氮化物半导体的电子亲和力的电子亲和力的二次电子气体和沿着与电子供应层的界面在电子通道层中形成的二维电子气的氮化物半导体,形成在堆叠半导体结构上的栅电极 对应于沟道区,以及源极和漏极,其形成在层叠的半导体结构上,分别与栅电极的第一侧和第二侧欧姆接触,该层叠半导体结构包括在衬底和电子通道层之间, n型导电层和阻挡层 aining铝连续形成和外延形成。