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    • 5. 发明申请
    • ENHANCEMENT MODE INSULATED GATE HETEROSTRUCTURE FIELD-EFFECT TRANSISTOR
    • 增强型绝缘栅结构场效应晶体管
    • US20080203430A1
    • 2008-08-28
    • US11781338
    • 2007-07-23
    • Grigory SiminMichael ShurRemigijus Gaska
    • Grigory SiminMichael ShurRemigijus Gaska
    • H01L29/778
    • H01L29/7783H01L29/2003H01L29/402
    • Aspects of the present invention provide an enhancement mode (E-mode) insulated gate (IG) double heterostructure field-effect transistor (DHFET) having low power consumption at zero gate bias, low gate currents, and/or high reliability. An E-mode HFET in accordance with an embodiment of the invention includes: top and bottom barrier layers; and a channel layer sandwiched between the bottom and the top barrier layers, wherein the bottom and top barrier layers have a larger bandgap than the channel layer, and wherein polarization charges of the bottom barrier layer deplete the channel layer and polarization charges of the top barrier layer induce carriers in the channel layer; and wherein a total polarization charge in the bottom barrier layer is larger than a total polarization charge in the top barrier layer such that the channel layer is substantially depleted at zero gate bias.
    • 本发明的方面提供了一种在零栅极偏压,低栅极电流和/或高可靠性下具有低功耗的增强模式(E模式)绝缘栅(IG)双异质结构场效应晶体管(DHFET)。 根据本发明的实施例的E型HFET包括:顶部和底部阻挡层; 以及夹在底部和顶部阻挡层之间的沟道层,其中底部和顶部势垒层具有比沟道层更大的带隙,并且其中底部势垒层的极化电荷消耗沟道层和顶部势垒的极化电荷 层在沟道层中诱导载流子; 并且其中底部阻挡层中的总极化电荷大于顶部势垒层中的总极化电荷,使得沟道层在零栅极偏压下基本上耗尽。
    • 6. 发明授权
    • Ultraviolet radiation sterilization
    • 紫外线辐射灭菌
    • US07634996B2
    • 2009-12-22
    • US11674494
    • 2007-02-13
    • Remigijus GaskaMichael ShurYuriy Bilenko
    • Remigijus GaskaMichael ShurYuriy Bilenko
    • A61M16/00
    • A61L2/10A61M16/04
    • A solution for sterilizing one or more hollow components of a device, such as a medical device, is provided. Ultraviolet radiation having one or more predominant wavelength(s) and a sufficient dose is generated and directed to an interior side of the hollow component(s). The predominant wavelength(s) is/are selected to harm one or more target organisms that may be present on the interior side. The ultraviolet radiation can be delivered by a structure that is periodically inserted and retracted into the hollow component. The structure can be configured to provide additional cleaning capability, such as suction, for removing matter that may be present in the hollow component.
    • 提供了用于对诸如医疗装置的装置的一个或多个中空部件进行灭菌的解决方案。 产生具有一个或多个主要波长和足够剂量的紫外线辐射并将其引导到中空部件的内侧。 选择主要波长以损害可能存在于内侧的一种或多种靶生物体。 紫外线辐射可以通过周期性地插入和缩回到中空部件中的结构传送。 该结构可以构造成提供额外的清洁能力,例如抽吸,用于去除可能存在于中空部件中的物质。
    • 7. 发明申请
    • ORGANISM GROWTH SUPPRESSION USING ULTRAVIOLET RADIATION
    • 使用超紫外线辐射的有机生长抑制
    • US20070205382A1
    • 2007-09-06
    • US11380512
    • 2006-04-27
    • Remigijus GaskaYuriy BilenkoMichael Shur
    • Remigijus GaskaYuriy BilenkoMichael Shur
    • A61L2/10A61L9/20
    • A61L2/10A61L2/23
    • A solution for suppressing organism growth using ultraviolet radiation generated by solid state ultraviolet radiation emitters, such as ultraviolet diodes is provided. The invention includes a connection structure that includes a plurality of solid state ultraviolet radiation emitters disposed thereon. Each of the plurality of solid state ultraviolet radiation emitters emits ultraviolet radiation having a wavelength less than or equal to four hundred nanometers to harm a target organism that may be present on a surface. In one embodiment, the connection structure comprises a two-dimensional mesh that may be placed adjacent an air filter, incorporated in a cover, and/or moved with respect to a surface, such as the interior of an air duct. In this manner, the invention can suppress and/or prevent the growth of organisms, such as biofilms and mold, in locations that are susceptible to such growth.
    • 提供了一种使用紫外线二极管等固体紫外线辐射发射体产生的紫外线照射来抑制生物生长的方法。 本发明包括一种连接结构,其包括设置在其上的多个固态紫外线辐射发射器。 多个固态紫外线辐射发射体中的每一个发射波长小于或等于四百纳米的紫外线辐射,以损害可能存在于表面上的靶生物体。 在一个实施例中,连接结构包括二维网格,其可以放置在与空气过滤器相邻的地方,并入和/或相对于诸如空气管道的内部的表面移动。 以这种方式,本发明可以抑制和/或防止生物体如生物膜和霉菌在易受这种生长影响的位置中的生长。