Method for fabricating a surface acoustic wave device
    3.
    发明授权
    Method for fabricating a surface acoustic wave device 有权
    声表面波装置的制造方法

    公开(公告)号:US08028389B2

    公开(公告)日:2011-10-04

    申请号:US11944207

    申请日:2007-11-21

    IPC分类号: H04R17/10 B44C1/22

    摘要: A novel surface acoustic wave device with a decreased velocity dispersion and a low insertion loss as well as the fabrication method therefore is provided. The surface acoustic wave device includes a substrate, an insulating layer with an indentation on the substrate, a silicon layer divided by an etched window with a first portion on the insulating layer and a second portion suspended above the indentation, a piezoelectric layer on the first and the second portions of the silicon layer, and at least an electrode on the piezoelectric layer.

    摘要翻译: 提供了一种具有降低的速度色散和低插入损耗的新型弹性表面波器件及其制造方法。 表面声波装置包括基板,在基板上具有凹陷的绝缘层,由蚀刻窗口分隔的硅层,绝缘层上具有第一部分,第二部分悬置在凹陷部分上,第一部分上的压电层 和硅层的第二部分,以及压电层上的至少一个电极。

    Surface acoustic wave device and its fabrication method
    5.
    发明申请
    Surface acoustic wave device and its fabrication method 审中-公开
    表面声波装置及其制造方法

    公开(公告)号:US20060076850A1

    公开(公告)日:2006-04-13

    申请号:US10959980

    申请日:2004-10-08

    IPC分类号: H03H9/25

    CPC分类号: H03H9/02574 H03H3/08

    摘要: A thin film layered surface acoustic wave device includes a substrate, a GaN piezoelectric film, an AlN piezoelectric film and interdigital transducer electrodes. The GaN piezoelectric film is deposited on the substrate by chemical vapor deposition (CVD) or physical vapor deposition (PVD) method. Then the AlN piezoelectric film is deposited on top surface of the GaN piezoelectric film by the same way. Finally, the interdigital transducer electrodes are deposited on top surface of AlN piezoelectric film and form by etching of lift off method. Accordingly, high operating frequency and low loss surface acoustic wave devices can be produced which can be integrated with high frequency devices, such as HBT and HEMT, and different devices.

    摘要翻译: 薄膜层状声表面波装置包括基板,GaN压电膜,AlN压电膜和叉指式换能器电极。 通过化学气相沉积(CVD)或物理气相沉积(PVD)方法将GaN压电薄膜沉积在衬底上。 然后通过相同的方式将AlN压电膜沉积在GaN压电膜的顶表面上。 最后,将指数式换能器电极沉积在AlN压电膜的顶表面上,并通过蚀刻剥离法形成。 因此,可以制造高工作频率和低损耗声表面波器件,其可以与诸如HBT和HEMT的高频器件以及不同的器件集成。

    Light-enhancing component and fabrication method thereof
    6.
    发明授权
    Light-enhancing component and fabrication method thereof 有权
    光增强成分及其制造方法

    公开(公告)号:US07149395B1

    公开(公告)日:2006-12-12

    申请号:US11200307

    申请日:2005-08-09

    CPC分类号: G01Q60/22 G02B6/262

    摘要: The present invention provides a light-enhancing component and a fabrication method thereof by using the focused-ion-beam. In the present invention, the surface plasmon polariton structure is coated on the surface of the optical fiber so as to form the light-enhancing component. When the light passes through the optical fiber, the luminous flux transmitted through the aperture on the surface plasmon polariton is enhanced, and the light beam smaller than the diffraction limitation can be transmitted to the far-field, i.e. the nano-optic sword is formed. The light-enhancing component of the present invention can be used for the optical data storage, the optical microscopy, the biomedical detections and the lithography to perform the extra optical resolutions beyond the diffraction limitation.

    摘要翻译: 本发明通过使用聚焦离子束提供光增强组件及其制造方法。 在本发明中,表面等离子体激元结构被涂覆在光纤表面上以形成光增强成分。 当光通过光纤时,透过表面等离子体激元的孔径的光通量增强,小于衍射极限的光束可以传输到远场,即形成纳米光剑 。 本发明的光增强组件可用于光学数据存储,光学显微镜,生物医学检测和光刻以执行超出衍射限制的额外光学分辨率。

    METHOD FOR COMBUSTION MODE TRANSITION
    7.
    发明申请
    METHOD FOR COMBUSTION MODE TRANSITION 有权
    燃烧模式转换的方法

    公开(公告)号:US20130087110A1

    公开(公告)日:2013-04-11

    申请号:US13267029

    申请日:2011-10-06

    IPC分类号: F01L1/34

    摘要: An internal combustion engine is selectably operable in one of homogeneous charge compression ignition (HCCI) mode with low lift intake and exhaust valve profiles and spark ignition (SI) mode with high lift intake and exhaust valve profiles. Transition from a current combustion mode to a desired combustion mode includes phase adjusting the one of the intake and exhaust valves exhibiting a greater effect upon an effective cylinder volume for a given phase adjustment in the desired combustion mode based upon a desired phasing for the desired combustion mode prior to lift adjusting the one of the intake and exhaust valves and adjusting the other of the intake and exhaust valves.

    摘要翻译: 内燃机可选择地以均匀充气压缩点火(HCCI)模式与低起升进气和排气阀轮廓以及具有高提升进气和排气阀轮廓的火花点火(SI)模式之一进行操作。 从当前燃烧模式转换到期望的燃烧模式包括相位调节进气门和排气门中的一个,对于期望的燃烧模式中的给定相位调节,对于有效气缸容积具有更大的影响,基于期望的燃烧所需的相位 在升降之前调节进气门和排气门之一并调整进气门和排气门中的另一个。

    METHOD AND APPARATUS FOR CONTROLLING MODE TRANSITION IN A SPARK-IGNITION DIRECT-INJECTION INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING MODE TRANSITION IN A SPARK-IGNITION DIRECT-INJECTION INTERNAL COMBUSTION ENGINE 有权
    用于控制火花点火直喷式内燃机的模式转换的方法和装置

    公开(公告)号:US20090198431A1

    公开(公告)日:2009-08-06

    申请号:US12024593

    申请日:2008-02-01

    IPC分类号: F02D41/00

    摘要: The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine, including transitioning the engine from operating in a stratified charge combustion mode to operating in a homogeneous charge combustion mode. External EGR flow is discontinued, and an in-cylinder trapped air mass and an in-cylinder EGR mass in an air intake system of the engine are estimated. Engine throttle position is controlled to achieve trajectories for air/fuel ratio and the in-cylinder EGR mass determined based upon the estimated in-cylinder trapped air mass and the in-cylinder EGR mass in the air intake system. A double-injection fueling strategy and a single-injection fueling are used during the transition.

    摘要翻译: 该公开内容阐述了操作火花点火直燃燃料内燃机,其包括使发动机从分层充气燃烧模式运转转变为以均匀充气燃烧模式运行。 外部EGR流量被停止,并且估计发动机的进气系统中的缸内截留气体质量和缸内EGR质量。 控制发动机节气门位置以实现空气/燃料比的轨迹,并且基于在进气系统中估计的缸内截留气体质量和缸内EGR质量确定的缸内EGR质量。 在过渡期间使用双重喷射加油策略和单次喷射加油。

    Method and apparatus for controlling combustion mode transitions in an internal combustion engine
    9.
    发明授权
    Method and apparatus for controlling combustion mode transitions in an internal combustion engine 有权
    用于控制内燃机中的燃烧模式转换的方法和装置

    公开(公告)号:US07540270B2

    公开(公告)日:2009-06-02

    申请号:US11739159

    申请日:2007-04-24

    IPC分类号: F02B17/00 F01L1/34 F02D41/18

    摘要: A method to control operation of an engine during a transition from a first to a second combustion mode is provided. The engine includes a controllable throttle valve, a variable valve actuation system for controlling openings and closings of intake and exhaust valves, and, an intake and an exhaust. Mass airflow, intake manifold pressure, and cylinder volume to operate the engine in the second combustion mode and meet an operator torque request are determined. Current states for mass airflow, intake manifold pressure, and cylinder volume are determined. An opening position of the controllable throttle valve and the openings and the closings of the intake and exhaust valves are controlled during the transition to the second combustion mode based upon differences between the current states for mass airflow, intake manifold pressure, and cylinder volume, and, the mass airflow, the intake manifold pressure, and the cylinder volume.

    摘要翻译: 提供了一种在从第一燃烧模式转换到第二燃烧模式期间控制发动机的操作的方法。 发动机包括可控制的节流阀,用于控制进气门和排气门的开口和关闭的可变气门致动系统,以及进气和排气。 确定在第二燃烧模式下操作发动机并满足操作者扭矩请求的质量气流,进气歧管压力和气缸体积。 确定质量气流,进气歧管压力和气缸体积的当前状态。 基于质量气流,进气歧管压力和气缸体积的当前状态之间的差异,在可转动到第二燃烧模式期间控制可控节流阀的开启位置和开口以及进气门和排气门的关闭,以及 ,质量气流,进气歧管压力和气缸体积。

    Method and apparatus for selecting a combustion mode for an internal combustion engine
    10.
    发明申请
    Method and apparatus for selecting a combustion mode for an internal combustion engine 有权
    用于选择内燃机的燃烧模式的方法和装置

    公开(公告)号:US20080257306A1

    公开(公告)日:2008-10-23

    申请号:US11736128

    申请日:2007-04-17

    IPC分类号: F02D41/00

    摘要: A method for selecting a preferred combustion mode for an internal combustion engine operative in a plurality of combustion modes is described. The method includes selecting a combustion mode in terms of first and second engine parameters, and separating the engine operating region into zones defined by the first parameter. Each of the zones is further separated into sub-zones defined by the second parameter. A combustion mode is associated with each of the sub-zones. Operating states are determined for the first and second parameters. One of the zones is identified based upon the state for the first parameter. One of the sub-zones of the identified zone is identified based upon the state for the second parameter, along with a combustion mode associated with the identified sub-zone. The engine is controlled to the preferred combustion mode, depending upon hysteresis.

    摘要翻译: 描述了用于选择以多种燃烧模式操作的内燃机的优选燃烧模式的方法。 该方法包括根据第一和第二发动机参数选择燃烧模式,以及将发动机操作区域分为由第一参数限定的区域。 每个区域进一步分成由第二参数定义的子区域。 燃烧模式与每个子区域相关联。 确定第一和第二参数的运行状态。 基于第一个参数的状态来识别其中一个区域。 基于第二参数的状态以及与所识别的子区域相关联的燃烧模式来识别所识别的区域中的一个子区域。 根据滞后,发动机被控制到优选的燃烧模式。