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    BAW RESONATOR HAVING LATERAL ENERGY CONFINEMENT AND METHODS OF FABRICATION THEREOF
    41.
    发明申请
    BAW RESONATOR HAVING LATERAL ENERGY CONFINEMENT AND METHODS OF FABRICATION THEREOF 有权
    具有横向能源约束的BAW共振器及其制造方法

    公开(公告)号：US20170054429A1

    公开(公告)日：2017-02-23

    申请号：US14876426

    申请日：2015-10-06

    Applicant: RF Micro Devices, Inc.

    Inventor： Gernot Fattinger ,  Alireza Tajic

    IPC: H03H9/54 ,  H03H9/17

    CPC classification number: H03H9/02157 ,  H03H3/02 ,  H03H9/02086 ,  H03H9/02118 ,  H03H9/132 ,  H03H9/171 ,  H03H9/175 ,  H03H2003/025

    Abstract: Embodiments of a Bulk Acoustic Wave (BAW) resonator in which an outer region of the BAW resonator is engineered in such a manner that lateral leakage of mechanical energy from an active region of the BAW resonator is reduced, and methods of fabrication thereof, are disclosed. In some embodiments, a BAW resonator includes a piezoelectric layer, a first electrode on a first surface of the piezoelectric layer, a second electrode on a second surface of the piezoelectric layer opposite the first electrode, and a passivation layer on a surface of the second electrode opposite the piezoelectric layer, the passivation layer having a thickness (TPA). The BAW resonator also includes a material on the second surface of the piezoelectric layer adjacent to the second electrode in an outer region of the BAW resonator. The additional material has a thickness that is n times the thickness (TPA) of the passivation layer.

    Abstract translation: 体声波（BAW）谐振器的实施例，其中BAW谐振器的外部区域被设计成使BAW谐振器的有源区域的机械能的横向泄漏减少，并且其制造方法被公开 。 在一些实施例中，BAW谐振器包括压电层，压电层的第一表面上的第一电极，与第一电极相对的压电层的第二表面上的第二电极和第二电极的表面上的钝化层 电极与压电层相对，钝化层具有厚度（TPA）。 BAW谐振器还包括在BAW谐振器的外部区域中与压电层相邻的第二电极的第二表面上的材料。 附加材料的厚度为钝化层的厚度（TPA）的n倍。

    High voltage field effect transitor finger terminations
    42.
    发明授权
    High voltage field effect transitor finger terminations 有权
    高电压场效应器手指终端

    公开(公告)号：US09564497B2

    公开(公告)日：2017-02-07

    申请号：US14749274

    申请日：2015-06-24

    Applicant: RF Micro Devices, Inc.

    Inventor： Kevin Wesley Kobayashi ,  Haldane S. Henry ,  Andrew P. Ritenour

    IPC: H01L29/66 ,  H01L29/40 ,  H01L29/423 ,  H01L29/812 ,  H01L29/417 ,  H01L29/778 ,  H01L29/20 ,  H01L29/80 ,  H01L29/16

    CPC classification number: H01L29/402 ,  H01L29/1608 ,  H01L29/2003 ,  H01L29/41725 ,  H01L29/42316 ,  H01L29/66462 ,  H01L29/66477 ,  H01L29/7787 ,  H01L29/80 ,  H01L29/812

    Abstract: A field effect transistor having at least one structure configured to redistribute and/or reduce an electric field from gate finger ends is disclosed. Embodiments of the field effect transistor include a substrate, an active region disposed on the substrate, at least one source finger in contact with the active region, at least one drain finger in contact with the active region, and at least one gate finger in rectifying contact with the active region. One embodiment has at least one end of the at least one gate finger extending outside of the active region. Another embodiment includes at least one source field plate integral with the at least one source finger. The at least one source field plate extends over the at least one gate finger that includes a portion outside of the active region. Either embodiment can also include a sloped gate foot to further improve high voltage operation.

    Abstract translation: 公开了具有至少一种结构的场效应晶体管，其被配置为重新分布和/或减少栅极指末端的电场。 场效应晶体管的实施例包括基板，设置在基板上的有源区，与有源区接触的至少一个源极指，与有源区接触的至少一个漏极指，以及整流中的至少一个栅极指 与活动区域接触。 一个实施例具有至少一个门指的至少一端延伸到有源区的外部。 另一个实施例包括与所述至少一个源手指成一体的至少一个源极场板。 所述至少一个源极场板在所述至少一个栅极指状物上延伸，所述至少一个栅极指包括有源区域外部的部分。 任何一个实施例还可以包括倾斜门脚，以进一步改善高压操作。

    TRANSMIT SPECTRAL REGROWTH CANCELLATION AT RECEIVER PORT
    43.
    发明申请
    TRANSMIT SPECTRAL REGROWTH CANCELLATION AT RECEIVER PORT 有权
    接收端口发送频谱重复取消

    公开(公告)号：US20170026064A1

    公开(公告)日：2017-01-26

    申请号：US15131417

    申请日：2016-04-18

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Andrew F. Folkmann

    IPC: H04B1/04 ,  H04L5/14 ,  H04B1/16

    CPC classification number: H04B1/006 ,  H03F3/24 ,  H04B1/0458 ,  H04B1/0475 ,  H04B2001/0408 ,  H04L5/14

    Abstract: A front-end module configured to cancel unwanted transmit spectrum at one or more receivers comprises at least one transmitter having a power amplifier and configured to transmit signals to an antenna. The front-end module also comprises at least one receiver to receive the transmit signals, wherein the at least one receiver receives at least a portion of unwanted transmit spectrum. A directional coupler couples at least a portion of a transmit output signal from the power amplifier to provide a coupled transmit output signal to signal conditioning circuitry associated with the at least one receiver and configured to condition the coupled transmit output signal to generate a conditioned transmit signal to provide to the at least one receiver, wherein the conditioned transmit signal at least partially cancels the unwanted transmit spectrum. The signal conditioning circuitry may adjust the amplitude and phase of the coupled transmit output signal.

    Abstract translation: 被配置为在一个或多个接收器处消除不期望的发射频谱的前端模块包括具有功率放大器并被配置为向天线发送信号的至少一个发射机。 前端模块还包括至少一个用于接收发射信号的接收机，其中至少一个接收机接收不想要的发射频谱的至少一部分。 定向耦合器耦合来自功率放大器的发射输出信号的至少一部分，以将耦合的发射输出信号提供给与至少一个接收机相关联的信号调理电路，并且被配置为调节耦合的发射输出信号以产生经调节的发射信号 以提供给所述至少一个接收机，其中经调节的发射信号至少部分地消除不想要的发射频谱。 信号调节电路可以调整耦合的发射输出信号的振幅和相位。

    SWITCH TOPOLOGY FOR SWITCHING FILTERS MULTIPLEXERS
    47.
    发明申请
    SWITCH TOPOLOGY FOR SWITCHING FILTERS MULTIPLEXERS 有权
    用于切换过滤器的交换机的开关拓扑

    公开(公告)号：US20170005385A1

    公开(公告)日：2017-01-05

    申请号：US15010829

    申请日：2016-01-29

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Marcus Granger-Jones

    IPC: H01P1/15 ,  H01P1/213

    CPC classification number: H03H19/002 ,  H03H7/465 ,  H03H2250/00 ,  H04B1/006

    Abstract: This disclosure relates to radio frequency (RF) front end circuitry used to route RF signals. In one embodiment, the RF front end circuitry has a filter circuit and a switch device. The switch device includes a common port, an RF port, and switchable path connected in series between the common port and the RF port. The switch device is configured to present approximately the filter capacitance of the filter circuit at the common port when the switchable path is closed. However, when the switchable path is open, the switch device is configured to present a device capacitance at the common port that is approximately equal to the filter capacitance of the filter circuit. In this manner, if the common port is connected to an antenna, the capacitance seen by the antenna from the common port remains substantially unchanged regardless of which of the switchable path is opened or closed.

    Abstract translation: 本公开涉及用于路由RF信号的射频（RF）前端电路。 在一个实施例中，RF前端电路具有滤波器电路和开关装置。 开关装置包括在公共端口和RF端口之间串联连接的公共端口，RF端口和可切换路径。 开关装置被配置为当可切换路径闭合时，在公共端口处大致呈现滤波器电路的滤波电容。 然而，当可切换路径打开时，开关装置被配置为在公共端口处呈现近似等于滤波器电路的滤波器电容的器件电容。 以这种方式，如果公共端口连接到天线，则天线从公共端口看到的电容保持基本上不变，而不管可切换路径中哪一个被打开或关闭。

    Fast transition envelope tracking
    49.
    发明授权
    Fast transition envelope tracking 有权
    快速过渡包络跟踪

    公开(公告)号：US09516693B2

    公开(公告)日：2016-12-06

    申请号：US14838515

    申请日：2015-08-28

    Applicant: RF Micro Devices, Inc.

    Inventor： Nadim Khlat ,  Michael R. Kay

    IPC: H04B1/04 ,  H04W76/04

    CPC classification number: H04W76/27 ,  H03F1/0227 ,  H03F3/24 ,  H03F2200/102 ,  H04W52/0229 ,  H04W52/028 ,  Y02D70/142

    Abstract: Envelope power supply circuitry is operated in one of an off-state, a standby-state, and a transmit-state. In the standby-state, select components in envelope power converter circuitry in the envelope power supply circuitry are turned on in order to charge one or more inductive and/or capacitive elements therein to a maximum value necessary for supporting transmission of signals about a maximum output power. Accordingly, the envelope power supply circuitry is able to prepare to support transmission about any output power without knowing the output power ahead of time.

    Abstract translation: 信封电源电路以关闭状态，待机状态和发送状态之一工作。 在待机状态下，选择包络电源电路中的包络功率转换器电路中的组件被接通，以便将其中的一个或多个感应和/或电容元件充电到支持关于最大输出的信号传输所需的最大值 功率。 因此，信封电源电路能够准备支持关于任何输出功率的传输，而无需提前知道输出功率。

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