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公开(公告)号：US20130300259A1
公开(公告)日：2013-11-14
申请号：US13941619
申请日：2013-07-15
IPC分类号： H01L41/053
CPC分类号： H01L41/0533 , H03H9/02086 , H03H9/02102 , H03H9/02133 , H03H9/02149 , H03H9/0557 , H03H9/1007 , H03H9/105 , H03H9/175
摘要： A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.
摘要翻译： 一种将核心谐振器与环境效应和老化效应隔离的体声波谐振器结构。 该结构具有至少部分地设置在两个电极之间的压电层。 该结构可以防止污染，封装泄漏以及由于外部效应而改变压电材料，同时仍然提供惯性阻力。 该结构具有一个或多个将老化效应限制在等于或低于特定阈值的保护元件。 谐振器的行为在谐振的整个带宽上是稳定的，而不仅仅是串联谐振。 保护元件的示例包括围绕芯谐振器的材料环，使得周边和边缘相关的环境和老化现象远离芯谐振器，形成在压电层上方或下方的布拉格反射器和形成在压电层上的盖 。
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公开(公告)号：US08487511B2
公开(公告)日：2013-07-16
申请号：US13549676
申请日：2012-07-16
CPC分类号： H01L41/0533 , H03H9/02086 , H03H9/02102 , H03H9/02133 , H03H9/02149 , H03H9/0557 , H03H9/1007 , H03H9/105 , H03H9/175
摘要： A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.
摘要翻译： 一种将核心谐振器与环境效应和老化效应隔离的体声波谐振器结构。 该结构具有至少部分地设置在两个电极之间的压电层。 该结构可以防止污染，封装泄漏以及由于外部效应而改变压电材料，同时仍然提供惯性阻力。 该结构具有一个或多个将老化效应限制在等于或低于特定阈值的保护元件。 谐振器的行为在谐振的整个带宽上是稳定的，而不仅仅是串联谐振。 保护元件的示例包括围绕芯谐振器的材料环，使得周边和边缘相关的环境和老化现象远离芯谐振器，形成在压电层上方或下方的布拉格反射器和形成在压电层上的盖 。
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公开(公告)号：US20120013224A1
公开(公告)日：2012-01-19
申请号：US13246304
申请日：2011-09-27
IPC分类号： H01L41/053
CPC分类号： H01L41/0533 , H03H9/02086 , H03H9/02102 , H03H9/02133 , H03H9/02149 , H03H9/0557 , H03H9/1007 , H03H9/105 , H03H9/175
摘要： A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.
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公开(公告)号：US20100277237A1
公开(公告)日：2010-11-04
申请号：US12693884
申请日：2010-01-26
申请人： Rajarishi Sinha , L. Richard Carley
发明人： Rajarishi Sinha , L. Richard Carley
IPC分类号： H03F1/00
CPC分类号： H03F3/211 , H01L41/044 , H01L41/107 , H03F1/0277 , H03F3/195 , H03F3/245 , H03F3/45475 , H03F2203/21145 , H03F2203/45138
摘要： A switchable power combiner is disclosed. The switchable power combiner has an output section that is a signal source connected to a transformer section. The transformer section has one or more primaries and a common secondary. The transformer primaries and secondary are acoustically coupled. The primaries or/and the secondary are made of switchable piezoelectric material, such that the acoustic coupling between any primary and the secondary can be switched on or off by electrical control, thereby implementing a switchable power combiner. The transformer secondary is connected to an antenna port. The power amplifier output section is segmented and connected to the transformer primaries. The power amplifier output section has a plurality of power amplifiers and a plurality of reactance elements, either fixed or variable. The switchable power combiner generates different linear load lines by switching on and off the coupling between any primary and the secondary.
摘要翻译： 公开了一种可切换的功率组合器。 可切换功率组合器具有作为连接到变压器部分的信号源的输出部分。 变压器部分具有一个或多个初级和一个共同的次级。 变压器初级和次级是声学耦合的。 原色或/和次级由可切换的压电材料制成，使得可以通过电气控制来打开或关闭任何初级和次级之间的声学耦合，从而实现可切换的功率组合器。 变压器次级连接到天线端口。 功率放大器输出部分被分段并连接到变压器原色。 功率放大器输出部分具有多个功率放大器和多个固定或可变的电抗元件。 可切换功率组合器通过接通和断开任何主和次级之间的耦合来生成不同的线性负载线。
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公开(公告)号：US07724097B2
公开(公告)日：2010-05-25
申请号：US12229948
申请日：2008-08-28
CPC分类号： H03L7/0814 , G06F1/025
摘要： A direct digital frequency synthesizer having a multi-modulus divider, a numerically controlled oscillator and a programmable delay generator. The multi-modulus divider receives an input clock having an input pulse frequency fosc and outputs some integer fraction of those pulses at an instantaneous frequency fVp that is some integer fraction (1/P) of the input frequency. The multi-modulus divider selects between at least two ratios of P (1/P or 1/P+1) in response to a signal from the numerically controlled oscillator. The numerically controlled oscillator receives a value which is the accumulator increment (i.e. the number of divided pulse edges) required before an overflow occurs that causes the multi-modulus divider to change divider ratios in response to receiving an overflow signal. The numerically controlled oscillator also outputs both the overflow signal and a delay signal to the delay generator that further controls the frequency of the multi-modulus divider output signal (Vp) to provide an output signal (VD) with an fout that has improved phase and timing jitter performance over prior art direct digital frequency synthesizer architectures.
摘要翻译： 具有多模式分频器，数控振荡器和可编程延迟发生器的直接数字频率合成器。 多模式分频器接收具有输入脉冲频率fosc的输入时钟，并且以输入频率的某个整数分数（1 / P）的瞬时频率fVp输出那些脉冲的一些整数。 响应于来自数控振荡器的信号，多模式分配器在至少两个P（1 / P或1 / P + 1）之间选择。 数字振荡器接收一个值，该值是在溢出发生之前所需的累加器增量（即，分割的脉冲边沿数），这导致多模式分频器响应于接收到溢出信号而改变分频比。 数字振荡器还将溢出信号和延迟信号输出到延迟发生器，该延迟发生器进一步控制多模式分频器输出信号（Vp）的频率，以提供具有改进相位的fout的输出信号（VD），并且 相比现有技术的直接数字频率合成器架构的定时抖动性能。
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6.发明授权公开(公告)号：US07058916B2
公开(公告)日：2006-06-06
申请号：US10174395
申请日：2002-06-18
IPC分类号： G06F17/50
CPC分类号： G06F17/505
摘要： In a method of automatically sizing and biasing a circuit, a database is provided including a plurality of records related to cells that can be utilized to form an integrated circuit. A cell parameter of a cell for a circuit is selected and compared to cell parameters residing in the records stored in the database. One record in the database is selected based upon this comparison and a performance characteristic of the circuit is determined from this record.
摘要翻译： 在自动调整和偏置电路的方法中，提供数据库，其包括与可用于形成集成电路的单元有关的多个记录。 选择电路单元的单元参数，并将其与存储在数据库中的记录中的单元参数进行比较。 基于该比较选择数据库中的一个记录，并且根据该记录确定电路的性能特性。
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公开(公告)号：US06778348B1
公开(公告)日：2004-08-17
申请号：US09648859
申请日：2000-08-25
申请人： L. Richard Carley
发明人： L. Richard Carley
IPC分类号： G11B2102
CPC分类号： G11B5/59633
摘要： This invention discloses a method for facilitating the writing of sector servo marks on disk drives that makes use of an inertial sensor mounted on the positioning arm of the disk drive. In addition, this patent discloses several operating strategies that enhance the accuracy of the inertial sensor when it is used to write sector servo marks.
摘要翻译： 本发明公开了一种便于在磁盘驱动器上写入扇区伺服标记的方法，该方法利用安装在磁盘驱动器的定位臂上的惯性传感器。 此外，该专利公开了当惯性传感器用于写入扇区伺服标记时提高惯性传感器精度的若干操作策略。
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公开(公告)号：US06366061B1
公开(公告)日：2002-04-02
申请号：US09229953
申请日：1999-01-13
IPC分类号： G05F1636
CPC分类号： G05F3/262
摘要： A multiple power supply circuit architecture, such as a circuit power system including a first voltage rail, a first reference rail, a second voltage rail, a second reference rail, and a first selective connector between the first and second voltage rails.
摘要翻译： 多电源电路架构，例如包括第一电压轨，第一参考轨，第二电压轨，第二参考轨和第一和第二电压轨之间的第一选择性连接器的电路电力系统。
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公开(公告)号：US5717631A
公开(公告)日：1998-02-10
申请号：US507676
申请日：1995-07-25
IPC分类号： G01B21/30 , B62D57/00 , B81B3/00 , B81B5/00 , B81B7/02 , B81C3/00 , G01N13/10 , G01N37/00 , G11B5/00 , G11B9/00 , G11B9/14 , H02N1/00 , H01L21/44
CPC分类号： H02N1/006 , B81C1/0015 , B82Y10/00 , G11B9/14 , G11B9/1409 , G11B9/1418 , G11B9/1445 , B81B2201/07 , B81B2201/12 , B81B2203/0361 , B81C2201/0109 , B81C2201/0132 , G11B2005/0002 , Y10S977/861 , Y10S977/881 , Y10S977/888 , Y10S977/89
摘要： A microelectromechanical device is comprised of a cantilevered beam positioned above, and free to move relative to, a substrate. The beam may carry a plurality of conductors which are insulated from one another. One or more tips is positioned on the beam with each tip being in electrical contact with one of the conductors. A memory device may be constructed by providing an array of such cantilevered beams proximate to a layer of media. Devices for positioning the beam in x and y directions perpendicular to each other and parallel to the layer of media and in a z direction perpendicular to the media are provided. A control circuit generates control signals input to the positioning devices for positioning the tips according to x, y, and z coordinates. A read/write circuit which is in electrical communication with the conductors of the beam, provide signals to the tips to cause the tips to write those signals to the layer of media in a write mode and to read previously written signals sensed by the tips in a read mode. A fabrication method is also disclosed.
摘要翻译： 微机电装置包括位于上方并相对于衬底自由移动的悬臂梁。 梁可以承载彼此绝缘的多个导体。 一个或多个尖端位于梁上，每个尖端与导体之一电接触。 可以通过提供靠近一层介质的这种悬臂梁的阵列来构造存储器件。 提供了用于将光束定位在彼此垂直并且平行于介质层并且垂直于介质的z方向上的x和y方向上的装置。 控制电路产生输入到定位装置的控制信号，用于根据x，y和z坐标定位尖端。 与光束的导体电连通的读/写电路向尖端提供信号，以使尖端以写模式将这些信号写入介质层，并读取由尖端感测的先前写入的信号 读取模式。 还公开了一种制造方法。
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公开(公告)号：US20120274183A1
公开(公告)日：2012-11-01
申请号：US13549676
申请日：2012-07-16
IPC分类号： H01L41/053
CPC分类号： H01L41/0533 , H03H9/02086 , H03H9/02102 , H03H9/02133 , H03H9/02149 , H03H9/0557 , H03H9/1007 , H03H9/105 , H03H9/175
摘要： A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.
摘要翻译： 一种将核心谐振器与环境效应和老化效应隔离的体声波谐振器结构。 该结构具有至少部分地设置在两个电极之间的压电层。 该结构可以防止污染，封装泄漏以及由于外部效应而改变压电材料，同时仍然提供惯性阻力。 该结构具有一个或多个将老化效应限制在等于或低于特定阈值的保护元件。 谐振器的行为在谐振的整个带宽上是稳定的，而不仅仅是串联谐振。 保护元件的示例包括围绕芯谐振器的材料环，使得周边和边缘相关的环境和老化现象远离芯谐振器，形成在压电层上方或下方的布拉格反射器和形成在压电层上的盖 。
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