MIMO-OFDM system and pre-coding and feedback method therein
    11.
    发明申请
    MIMO-OFDM system and pre-coding and feedback method therein 失效
    MIMO-OFDM系统及其预编码和反馈方法

    公开(公告)号:US20070115799A1

    公开(公告)日:2007-05-24

    申请号:US11327217

    申请日:2006-01-05

    Abstract: The present invention provides an antenna-array-based multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) system and a pre-coding and feedback method used in the same. The present invention uses QR decompositions of the MIMO channel matrixes to parameterize the channel state information (CSI) of every OFDM frequency band. In addition, the present invention feeds back the information related to θ and φ in the Givens rotation matrixes of the partial frequency bands and then uses an interpolation method to generate θ and φ in the Givens rotation matrixes of all the frequency bands, which further is able to represent the CSI of all the frequency bands. In this way, the present invention has advantages of low complexity and low feedback rate requirement.

    Abstract translation: 本发明提供了一种基于天线阵列的多输入多输出正交频分复用(MIMO-OFDM)系统及其中使用的预编码和反馈方法。 本发明使用MIMO信道矩阵的QR分解来参数化每个OFDM频带的信道状态信息(CSI)。 此外,本发明反馈了与部分频带的Givens旋转矩阵中的θ和phi相关的信息,然后使用内插方法来产生所有频带的Givens旋转矩阵中的θ和φi,这进一步是 能够表示所有频段的CSI。 这样,本发明具有复杂度低,反馈率低的优点。

    Polymer liquid crystal device and fabrication method thereof
    12.
    发明申请
    Polymer liquid crystal device and fabrication method thereof 有权
    聚合物液晶装置及其制造方法

    公开(公告)号:US20070063171A1

    公开(公告)日:2007-03-22

    申请号:US11447991

    申请日:2006-06-07

    CPC classification number: C09K19/544 Y10T428/10

    Abstract: A polymer liquid crystal device. The polymer liquid crystal device is fabricated by the following steps. A first substrate is provided, and a coating of a photosensitive composition is formed on the first substrate. Next, a second substrate is disposed on the first substrate. Finally, the coating is completely cured without a mask, forming a polymer dispersed liquid crystal film between the first and second substrate. Furthermore, the coating can also be cured with mask, forming a phase separation composite film between the first and second substrate.

    Abstract translation: 聚合物液晶装置。 聚合物液晶装置通过以下步骤制造。 提供第一基板,并且在第一基板上形成感光性组合物的涂层。 接下来,第二基板设置在第一基板上。 最后,涂层在没有掩模的情况下完全固化,在第一和第二基底之间形成聚合物分散的液晶膜。 此外,涂层也可以用掩模固化,在第一和第二基底之间形成相分离复合膜。

    Hybrid beamforming apparatus and method for the same
    13.
    发明授权
    Hybrid beamforming apparatus and method for the same 有权
    混合波束成形装置及其方法

    公开(公告)号:US07161534B2

    公开(公告)日:2007-01-09

    申请号:US10939480

    申请日:2004-09-14

    CPC classification number: H01Q3/2605 G01S3/16

    Abstract: A hybrid beamforming apparatus and method are proposed for a communication system. The hybrid beamforming apparatus includes a plurality of antennas, a plurality of FFT, a plurality of hybrid weight-coefficient generators and a plurality of adders. In each of the hybrid weight-coefficient generators, the weight coefficient for each subcarrier is calculated by a time-domain correlation matrix and a cross-correlation vector, which is calculated by a frequency domain signal and a training signal. The hybrid beamforming apparatus and method according to the present invention can enhance immunity for multipath effect with lower system complexity.

    Abstract translation: 提出了一种用于通信系统的混合波束成形装置和方法。 混合波束形成装置包括多个天线,多个FFT,多个混合权重系数发生器和多个加法器。 在每个混合权重系数发生器中,通过由频域信号和训练信号计算的时域相关矩阵和互相关矢量来计算每个子载波的权重系数。 根据本发明的混合波束形成装置和方法可以增强具有较低系统复杂度的多径效应的免疫力。

    Disc Drive Capable Of Decreasing Noise
    14.
    发明申请
    Disc Drive Capable Of Decreasing Noise 审中-公开
    光盘驱动器能够减少噪音

    公开(公告)号:US20060285246A1

    公开(公告)日:2006-12-21

    申请号:US11419764

    申请日:2006-05-23

    CPC classification number: G11B17/0405

    Abstract: A disc drive includes a housing, a workbench, and a panel. The housing includes an opening, a protection plane, a baffler plane formed on a side of disc ejection and extended from one edge of the protection plane, a support plane extended from the baffler plane, and a flange extended from the support plane. The workbench is installed inside the housing for performing corresponding functions. The panel includes a first fillister corresponding to the support plane and a second fillister corresponding to the flange on the side of disc ejection for covering the opening of the housing. A length of the support plane is approximately equal to a width of the protection plane, and neither the baffler plane nor the support plane include a hole

    Abstract translation: 盘驱动器包括壳体,工作台和面板。 壳体包括开口,保护平面,形成在盘排出侧并从保护平面的一个边缘延伸的挡板平面,从挡板平面延伸的支撑平面以及从支撑平面延伸的凸缘。 工作台安装在外壳内,用于执行相应的功能。 面板包括对应于支撑平面的第一填充器和对应于用于覆盖壳体的开口的盘弹出侧面上的凸缘的第二填充器。 支撑平面的长度近似等于保护平面的宽度,挡板平面和支撑平面都不包括孔

    Prism manufacturing method
    15.
    发明申请
    Prism manufacturing method 审中-公开
    棱镜制造方法

    公开(公告)号:US20060249863A1

    公开(公告)日:2006-11-09

    申请号:US11174648

    申请日:2005-07-06

    Applicant: Ping Chuang

    Inventor: Ping Chuang

    Abstract: The present invention describes a prism manufacturing method. According to the method, a semiconductor process method is applied to a wafer for forming a master mold. Then, an electroform process is applied to the master mold for forming a mold. The mold can be used to mass-produce prisms by a well-known manufacturing method.

    Abstract translation: 本发明描述了棱镜制造方法。 根据该方法,将半导体处理方法应用于用于形成母模的晶片。 然后,将电铸方法应用于用于形成模具的母模。 该模具可以用于通过公知的制造方法批量生产棱镜。

    Flexible land grid array connector
    16.
    发明授权
    Flexible land grid array connector 失效
    灵活的土地格栅阵列连接器

    公开(公告)号:US07021941B1

    公开(公告)日:2006-04-04

    申请号:US10969369

    申请日:2004-10-19

    Abstract: An LGA connector is used to interconnect an LGA package and a printed circuit board. The LGA connector includes an elastomeric body with a plurality of through-holes. Metal films are formed on inner walls of through-holes and splay out around the mouths of their upper and lower openings. The metal films are formed by vacuum metallization, sputtering, chemical plating, electrical plating or PVD. The through-holes have a funnel-like shape to absorb external stresses and redirect the stress to shrink the through-hole diameters. Moreover, the metal films' elastic deformation is larger than conventional metal conductive fillers so as to improve reliability.

    Abstract translation: LGA连接器用于连接LGA封装和印刷电路板。 LGA连接器包括具有多个通孔的弹性体。 金属膜形成在通孔的内壁上,并在其上部和下部开口的嘴部周围张开。 金属膜通过真空金属化,溅射,化学镀,电镀或PVD形成。 通孔具有漏斗形形状以吸收外部应力并且重定向应力以收缩通孔直径。 此外,金属膜的弹性变形大于常规金属导电填料,从而提高可靠性。

    Method and composition to improve a nitride/oxide wet etching selectivity
    17.
    发明授权
    Method and composition to improve a nitride/oxide wet etching selectivity 有权
    改善氮化物/氧化物湿蚀刻选择性的方法和组合物

    公开(公告)号:US06987064B2

    公开(公告)日:2006-01-17

    申请号:US10274603

    申请日:2002-10-21

    CPC classification number: H01L21/31111

    Abstract: A method for wet etching a metal nitride containing layer overlying a silicon oxide containing layer in a semiconductor device or micro-electro-mechanical device manufacturing process including providing a substrate including a silicon oxide containing layer and an overlying exposed metal nitride containing layer; providing a wet etching solution including phosphoric acid and water; adding a silicon containing compound which undergoes a hydrolysis reaction in the wet etching solution; and, contacting the exposed metal nitride containing layer with the wet etching solution for a period of time to remove the metal nitride containing layer.

    Abstract translation: 一种用于在半导体器件中湿式蚀刻覆盖含氧化硅的层的含金属氮化物层的方法或微机电装置制造方法,包括提供包含含氧化硅的层和覆盖的暴露的金属氮化物含有层的衬底; 提供包含磷酸和水的湿蚀刻溶液; 在湿蚀刻溶液中加入经历水解反应的含硅化合物; 并且将暴露的含金属氮化物层与湿蚀刻溶液接触一段时间以除去含金属氮化物层。

    FIB exposure of alignment marks in MIM technology
    19.
    发明申请
    FIB exposure of alignment marks in MIM technology 审中-公开
    MIM技术中FIB曝光对准标记

    公开(公告)号:US20050186753A1

    公开(公告)日:2005-08-25

    申请号:US10786187

    申请日:2004-02-25

    Abstract: A new and improved method for exposing alignment marks on a substrate by locally cutting through a metal or non-metal layer or layers sequentially deposited on the substrate above the alignment marks, using focused ion beam (FIB) technology. In a preferred embodiment, a method for exposing alignment marks on a substrate can be carried out by first providing a substrate that has multiple alignment marks provided thereon and at least one overlying opaque layer, typically but not necessarily metal, deposited on the substrate above the alignment marks. A focused ion beam is then directed against the overlying opaque layer or layers to cut through the layer or layers and expose the alignment marks on the substrate. A noble gas, preferably argon, is typically used as the ion source for the focused ion beam.

    Abstract translation: 一种新的和改进的方法,通过使用聚焦离子束(FIB)技术,通过局部切割穿过对准标记上方的基板上的金属或非金属层或层而在基板上曝光对准标记。 在优选实施例中,用于在衬底上曝光对准标记的方法可以通过首先提供其上设置有多个对准标记的衬底和沉积在衬底上方的至少一个上覆的不透明层(通常但不一定是金属) 对齐标记 然后将聚焦离子束定向到上覆的不透明层或层以切穿该层或者暴露衬底上的对准标记。 惰性气体,优选氩气通常用作聚焦离子束的离子源。

    Method and apparatus for determining end-point in a chamber cleaning process

    公开(公告)号:US06553335B2

    公开(公告)日:2003-04-22

    申请号:US09886838

    申请日:2001-06-21

    CPC classification number: H01L21/67253 H01J37/32862 H01J37/32963

    Abstract: A method for determining end-point in a chamber cleaning process is disclosed which can be carried out by first providing a chamber that has a cavity for conducting a semiconductor fabrication process therein, then mounting a crystal sensor on a surface of the chamber cavity at a position that the sensor is exposed to gases or liquids or generated by the fabrication process; conducting a semiconductor fabrication process in the chamber; flowing a cleaning fluid into and in-situ cleaning the surface of the chamber cavity; inputting an oscillating frequency into the crystal sensor and monitoring an output frequency of oscillation from the sensor; and comparing the output frequency of oscillation to an output frequency from a crystal sensor that has a clean surface and determining when the surface of the chamber cavity is cleaned.

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