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    • 51. 发明申请
    • PROJECTION LED MODULE AND METHOD OF MAKING A PROJECTION LED MODULE
    • 投影LED模块和制作投影LED模块的方法
    • US20110057557A1
    • 2011-03-10
    • US12555327
    • 2009-09-08
    • Yong ChiShou Lung ChenWeiping Tang
    • Yong ChiShou Lung ChenWeiping Tang
    • H01L33/60H01J9/00
    • H01L33/58H01L2924/0002H01L2924/00
    • A projection light emitting diode (LED) module is provided. According to one embodiment, the LED module converts LED light to polarized light and emits the polarized light. One embodiments of the LED module includes a reflective polarizer positioned in a light emission path of the LED light, wherein the reflective polarizer polarizes the LED light, and the reflective polarizer further transmits the first polarization state light and reflects the second polarization state light; and a polarization conversion element bonded to the reflective polarizer, the polarization conversion element positioned between the LED light and the reflective polarizer, wherein the polarization conversion element coverts the second polarization state light to a desired polarization state light. A reflecting cup may be provided to increase the reflection of light back through the polarization conversion element and the reflective polarizer. The LED module may be configured for use with commercially available LED packages.
    • 提供投影发光二极管(LED)模块。 根据一个实施例,LED模块将LED光转换成偏振光并发射偏振光。 LED模块的一个实施例包括位于LED光的发光路径中的反射偏振器,其中反射偏振器偏振LED光,并且反射偏振器还透射第一偏振状态光并反射第二偏振状态光; 以及偏振转换元件,其结合到所述反射偏振器,所述偏振转换元件位于所述LED光和所述反射偏振器之间,其中所述偏振转换元件将所述第二偏振状态光覆盖到期望的偏振状态光。 可以提供反射杯以增加通过偏振转换元件和反射偏振器的光的反射。 LED模块可以被配置为与市售的LED封装一起使用。
    • 52. 发明授权
    • Apparatus and method for generating electricity using piezoelectric material
    • 使用压电材料发电的装置和方法
    • US07902727B1
    • 2011-03-08
    • US12539315
    • 2009-08-11
    • Man-Lung ShamZiyang GaoTung Ching LuiChang Hwa Chung
    • Man-Lung ShamZiyang GaoTung Ching LuiChang Hwa Chung
    • H01L41/08
    • H02N2/18A43B3/0015H01L41/113
    • An apparatus and method for generating electricity using piezoelectric material. The apparatus comprises a first elongate member and a second elongate member that are joining together at first and second points which are spaced apart from each other. The second elongate member comprises a piezoelectric element, or has a piezoelectric element mounted thereon. When pressure is applied to the first elongate member, the second elongate member is stretched and the stretching force is applied to the piezoelectric element. This generates electricity. A similar arrangement with a third elongate member may be provided on the other side of the second elongate member. The apparatus may be placed in a shoe or underneath a floor, so that the variation in pressure caused by walking may be used in generate electricity.
    • 一种使用压电材料发电的装置和方法。 该装置包括在彼此间隔开的第一和第二点处接合在一起的第一细长构件和第二细长构件。 第二细长构件包括压电元件,或者安装有压电元件。 当对第一细长构件施加压力时,拉伸第二细长构件并将拉伸力施加到压电元件。 这产生电力。 与第三细长构件类似的布置可以设置在第二细长构件的另一侧上。 该装置可以放置在鞋中或在地板下方,从而可以将用于步行的压力变化用于发电。
    • 57. 发明申请
    • SEMICONDUCTOR WAFERS AND SEMICONDUCTOR DEVICES AND METHODS OF MAKING SEMICONDUCTOR WAFERS AND DEVICES
    • 半导体晶体管和半导体器件及其制造半导体器件和器件的方法
    • US20100200880A1
    • 2010-08-12
    • US12648782
    • 2009-12-29
    • Ping SitShu Yuan
    • Ping SitShu Yuan
    • H01L33/58H01L21/20
    • H01L33/0079H01L21/0242H01L21/02458H01L21/02502H01L21/0254H01L21/02658H01L21/02664H01L33/007H01L33/02
    • Semiconductor wafers, semiconductor devices, and methods of making semiconductor wafers and devices are provided. Embodiments of the present invention are especially suitable for use with substrate substitution applications, such in the case of fabricating vertical LED. One embodiment of the present invention includes a method of making a semiconductor device, the method comprising providing a substrate; forming a plurality of polishing stops on the substrate, each of the plurality of polishing stops including ceramic material; growing one or more buffer layers on the substrate; and growing one or more epitaxial layers on the one or more buffer layers. Additionally, the steps of applying one or more metal layers to the one or more epitaxial layers, affixing a second substrate to the one or more metal layers and removing the base substrate using a mechanical thinning process may be performed.
    • 提供半导体晶片,半导体器件以及制造半导体晶片和器件的方法。 本发明的实施例特别适用于衬底替代应用,例如在制造垂直LED的情况下。 本发明的一个实施例包括制造半导体器件的方法,所述方法包括提供衬底; 在所述基板上形成多个研磨停止部,所述多个研磨停止体中的每一个包括陶瓷材料; 在衬底上生长一个或多个缓冲层; 以及在所述一个或多个缓冲层上生长一个或多个外延层。 此外,可以执行将一个或多个金属层施加到一个或多个外延层,将第二基板附着到一个或多个金属层并且使用机械稀疏处理去除基底的步骤。
    • 58. 发明授权
    • Current-mode-controlled current sensor circuit for power switching converter
    • 用于电源开关变换器的电流模式控制电流传感器电路
    • US07710094B1
    • 2010-05-04
    • US12333979
    • 2008-12-12
    • Yat To William WongXiao Fei KuangKam Chuen WanKwok Kuen David Kwong
    • Yat To William WongXiao Fei KuangKam Chuen WanKwok Kuen David Kwong
    • G05F1/00G05F3/02G05F3/16
    • H02M3/156G01R19/0092H02M2001/0009
    • A power converter has a power transistor driving a power current through an inductor to provide a controlled power-supply voltage. The power transistor is on during a first state but off during a second state when a sink transistor reduces the power current through the inductor. Both voltage sensing of the power-supply voltage and current sensing at the power transistor provide feedback to control the amount of time that the first state is active, and thus control the power current. Current sensing is provided by a smaller minor transistor in parallel with the power transistor. The minor transistor turns on after the power transistor to reduce disturbance spikes. Switches connect sources of the power and mirror transistors to an amplifier that drives a sensing transistor. The sensing transistor generates a sensing voltage from the mirror transistor source. During the second state the amplifier's inputs are equalized to provide fast response.
    • 功率转换器具有驱动通过电感器的功率电流以提供受控的电源电压的功率晶体管。 功率晶体管在第一状态期间导通,而在第二状态期间,当晶体管晶体管降低通过电感器的功率电流时,功率晶体管截止。 在功率晶体管处的电源电压和电流感测的两个电压检测提供反馈以控制第一状态是有效的时间量,从而控制功率电流。 电流感测由与功率晶体管并联的较小次级晶体管提供。 次晶体管在功率晶体管之后导通,以减少干扰尖峰。 将电源和镜像晶体管的源极连接到驱动感测晶体管的放大器。 感测晶体管产生来自反射镜晶体管源的感测电压。 在第二状态期间,放大器的输入被均衡以提供快速响应。
    • 60. 发明授权
    • Light emitting device
    • 发光装置
    • US07659546B2
    • 2010-02-09
    • US11317281
    • 2005-12-23
    • Ming LuGeoffrey Wen Tai Shuy
    • Ming LuGeoffrey Wen Tai Shuy
    • H01L29/22H01L27/15
    • H01L33/62H01L2924/0002H01L2924/00
    • A light emitting device firstly includes a light emitting diode (LED) structure, having a top surface with a light emitting region. The device also has a heterojunction within the device structure, the heterojunction having a p-type and an n-type semiconductor layer, and a plurality of electrodes positioned on the top surface, each being electrically connected to one of the p-type and n-type semiconductor layers. At least a first and a second electrodes are connected to a same type semiconductor layer and are physically separated from each other. The device further includes a first and a second heterojunction regions within the heterojunction, each being respectively defined between one of the first and second electrodes and one of the other electrodes connected to the other type semiconductor layer. The first and second heterojunction regions are alternatively driven for emitting lights in the time domain.
    • 发光器件首先包括具有发光区域的顶表面的发光二极管(LED)结构。 该器件还在器件结构内具有异质结,异质结具有p型和n型半导体层,以及位于顶表面上的多个电极,每个电极电连接到p型和n型半导体层之一 型半导体层。 至少第一和第二电极连接到相同类型的半导体层并且在物理上彼此分离。 该器件还包括异质结内的第一和第二异质结区域,每个异质结区域分别限定在第一和第二电极中的一个之间以及连接到另一类型半导体层的其它电极之一。 交替驱动第一和第二异质结区域以在时域中发光。