公开(公告)号：US20070001785A1

公开(公告)日：2007-01-04

申请号：US11445256

申请日：2006-06-02

申请人： Kunihito Yamanaka

发明人： Kunihito Yamanaka

IPC分类号： H03H9/64

CPC分类号： H03H9/02874 ,  H03H9/02779 ,  H03H9/6496

摘要： The present invention aims to provide a surface acoustic wave (SAW) device including at least two interdigital transducer (IDT) electrodes placed with a predetermined space therebetween on a piezoelectric substrate with improved passband characteristics without increasing the device size. The device includes IDT electrodes 2 and 3 placed with a predetermined space therebetween on a main surface of a piezoelectric substrate 1 and satisfies the formula: 0

摘要翻译： 本发明旨在提供一种表面声波（SAW）装置，其包括在压电基板上以预定的间隔放置的至少两个叉指式换能器（IDT）电极，其具有改进的通带特性，而不增加装置尺寸。 该装置包括在压电基板1的主表面上以预定间隔放置的IDT电极2和3，并且满足以下公式：<？in-line-formula description =“In-line Formulas”end =“lead” 0 <（W / D）* fo / 10 9 <= 0.6，<？in-line-formula description =“In-line Formulas”end =“tail”？>其中fo是中心 频率以Hz为单位，W是以毫米为单位测量的IDT电极2和3的叉指长度，D是以毫米为单位测量的IDT电极2和3之间的距离。

公开(公告)号：US20060226933A1

公开(公告)日：2006-10-12

申请号：US11398661

申请日：2006-04-06

申请人： Naoki Takahashi

发明人： Naoki Takahashi

IPC分类号： H03H9/64

CPC分类号： H03H9/6496 ,  H03H9/02724 ,  H03H9/14597 ,  H03H9/6426 ,  H03H9/6469

摘要： A surface acoustic wave filter (cascaded dual mode SAW filter) includes three IDT electrodes disposed adjacent to each other along the propagation direction of a surface wave on a piezoelectric substrate and two primary-tertiary longitudinally-coupled dual mode SAW fliers cascaded and constructed by arranging grating reflectors on both sides of three IDT electrodes. At least a pair of electrode fingers are thinned out from the IDT electrodes disposed outside, and floating electrodes are then disposed.

摘要翻译： 表面声波滤波器（级联双模式SAW滤波器）包括沿着压电基板上的表面波的传播方向彼此相邻布置的三个IDT电极，以及通过布置来构造的两个第一三次纵向耦合的双模式SAW模式 三个IDT电极两侧的光栅反射器。 至少一对电极指从设置在外部的IDT电极变薄，然后布置浮动电极。

公开(公告)号：US20060197619A1

公开(公告)日：2006-09-07

申请号：US11329237

申请日：2006-01-11

申请人： Daisuke Oishi ,  Makoto Komai

发明人： Daisuke Oishi ,  Makoto Komai

IPC分类号： H03B5/32

CPC分类号： H03B5/32

摘要： [Problem] To provide a method of manufacturing a piezoelectric oscillator capable of preventing poor DLD characteristics that tend to occur in the piezoelectric oscillator including a piezoelectric resonator element and an IC chip that are sealed in the same package. [Means to Solve the Problem]A step of chemically polishing a surface without an integrated circuit of a silicon wafer 31 (step S2), a step of cleaning the silicon wafer 31 (step S3), a step of cutting the silicon wafer 31 into individual pieces of IC chip 6 (step S5), a step of bonding the IC chip 6 facing downwards in a recessed section of an insulating container, a step of mounting a piezoelectric resonator element in the insulating container, and a step of sealing with metal cover are included.

摘要翻译： 本发明提供一种压电振荡器的制造方法，该压电振荡器能够防止包含压电谐振元件和密封在同一封装中的IC芯片的压电振荡器中倾向于出现的差的DLD特性。 （解决问题的手段）在没有硅晶片31的集成电路的情况下化学研磨表面的步骤（步骤S2），清洗硅晶片31的步骤（步骤S 3），切割硅晶片的步骤 31分离成IC芯片6的各个片段（步骤S 5），将绝缘容器的凹部中的IC芯片6接合到底部的步骤，将绝缘容器内的压电谐振元件安装的步骤， 包括金属盖密封。

公开(公告)号：US20060145569A1

公开(公告)日：2006-07-06

申请号：US11319404

申请日：2005-12-29

申请人： Takao Morita ,  Takuya Owaki

发明人： Takao Morita ,  Takuya Owaki

IPC分类号： H03H9/25

CPC分类号： H03H9/02834 ,  H03H9/02551 ,  H03H9/14538

摘要： A surface acoustic wave device has a piezoelectric substrate and an IDT formed on the piezoelectric substrate, and uses an excited wave as an SH wave. The piezoelectric substrate is a quartz plate in which a cut angle θ of a rotated Y-cut quartz substrate is set in the range of −65°≦θ≦−51° in a counter-clockwise direction from a crystal Z-axis and the propagation direction of a surface acoustic wave is set in the range (90°±5°) with respect to a crystal X-axis. The IDT is made of Ta or an alloyed metal containing Ta as the main component.

摘要翻译： 表面声波装置具有形成在压电基板上的压电基板和IDT，并且使用激发波作为SH波。 压电基板是石英板，其中旋转的Y切割石英基板的切割角θ在从晶体Z轴的逆时针方向设定在-65°<θ= 51°的范围内 并且表面声波的传播方向被设定在相对于晶体X轴的范围（90°±5°）内。 IDT由Ta或以Ta为主要成分的合金金属制成。

公开(公告)号：US08375790B2

公开(公告)日：2013-02-19

申请号：US12797113

申请日：2010-06-09

申请人： Kenji Sato ,  Yutaka Takada ,  Hideto Naruse ,  Masayuki Takahashi

发明人： Kenji Sato ,  Yutaka Takada ,  Hideto Naruse ,  Masayuki Takahashi

IPC分类号： G01C19/56

CPC分类号： G01C19/56

摘要： An angular velocity detection apparatus (i.e., physical quantity detection apparatus) includes a gyro sensor element (i.e., physical quantity detection element) that allows an angular velocity detection signal that corresponds to the magnitude of an angular velocity (i.e., physical quantity) and a leakage signal of vibrations based on a drive signal (square-wave voltage signal) to flow through a detection electrode, a driver circuit that generates the drive signal, a synchronous detection circuit that performs a synchronous detection process on a detection target signal that includes the angular velocity detection signal and the leakage signal based on a detection signal that is synchronized with the drive signal, and a phase change circuit that changes a relative timing of at least one of a rising edge and a falling edge of the detection signal with respect to the detection target signal based on a control signal so that at least part of the leakage signal is output by the synchronous detection process.

摘要翻译： 角速度检测装置（即，物理量检测装置）包括：陀螺仪传感器元件（即，物理量检测元件），其允许对应于角速度（即物理量）的大小的角速度检测信号和 基于通过检测电极流过的驱动信号（方波电压信号）的振动泄漏信号，产生驱动信号的驱动电路，对包含检测电极的检测对象信号进行同步检测处理的同步检测电路 角速度检测信号和基于与驱动信号同步的检测信号的泄漏信号，以及相位改变电路，其将检测信号的上升沿和下降沿中的至少一个相对于 基于控制信号的检测目标信号，使得至少部分泄漏信号通过同步输出 检测过程。

公开(公告)号：US20110204984A1

公开(公告)日：2011-08-25

申请号：US13124980

申请日：2009-10-22

申请人： Kunihito Yamanaka

发明人： Kunihito Yamanaka

IPC分类号： H03B5/30

CPC分类号： H03H9/02551 ,  H03H9/0547 ,  H03H9/1071

摘要： It is possible to reduce the size of a surface acoustic wave resonator by enhancing the Q value. In a surface acoustic wave resonator in which an IDT having electrode fingers for exciting surface acoustic waves is formed on a crystal substrate, a line occupying ratio is defined as a value obtained by dividing the width of one electrode finger by the distance between the center lines of the gaps between one electrode finger and the electrode fingers adjacent to both sides thereof, and the IDT includes a region formed by gradually changing the line occupying ratio from the center to both edges so that the frequency gradually becomes lower from the center to both edges than the frequency at the center of the IDT.

摘要翻译： 可以通过提高Q值来减小声表面波谐振器的尺寸。 在晶体基板上形成具有用于激发表面声波的电极指的IDT的表面声波谐振器中，线占有率被定义为通过将一个电极指的宽度除以中心线之间的距离而获得的值 一个电极指与电极指的两侧之间的间隙的间隙，并且IDT包括通过逐渐改变从中心到两边的线占有率形成的区域，使得频率从中心逐渐变低到两边 比IDT中心的频率。

公开(公告)号：US08000208B2

公开(公告)日：2011-08-16

申请号：US12249020

申请日：2008-10-10

申请人： Masayuki Oto

发明人： Masayuki Oto

IPC分类号： G11B7/00

CPC分类号： G02B5/3083 ,  G11B7/1365 ,  G11B2007/0006

摘要： A laminated wave plate that corresponds to a plurality of wavelengths including at least two wavelengths of λA and λB, and includes a first wave plate disposed on an incident side and a second wave plate disposed on an emitting side, the first wave plate and the second wave plate being laminated in such a manner that their optical axes are intersected each other, includes the following equations from (1) to (5): ΓA1=360°+360°×2NA  (1); ΓA2=180°+360°×NA  (2); ΓB1=360°×2NB  (3); ΓB2=360°×NB  (4); and NB=(ΔnB/ΔnA)×(λA/λB)×(0.5+NA)  (5), in which ΓA1 is a phase difference of the wavelength λA at the first wave plate, ΓA2 is a phase difference of the wavelength λA at the second wave plate, ΓB1 is a phase difference of the wavelength λB at the first wave plate, ΓB2 is a phase difference of the wavelength λB at the second wave plate, θ1 is an in-plane azimuth of the first wave plate, θ2 is an in-plane azimuth of the second wave plate, ΔnA is a birefringent difference that is a difference (neA−noA) between a normal ray refractive index noA and an abnormal ray refractive index neA of the wavelength λA, and ΔnB is a birefringent difference that is a difference (neB−noB) between a normal ray refractive index noB and an abnormal ray refractive index neB of the wavelength λB, under conditions of θ1=−21°, and θ2=45°.

摘要翻译： 对应于包括λA和λB的至少两个波长的多个波长的层叠波片，并且包括设置在入射侧的第一波片和设置在发射侧的第二波片，所述第一波片和第二波片 波片以它们的光轴彼此相交的方式层叠，包括从（1）到（5）的以下等式：＆Ggr; A1 = 360°+ 360°×2NA（1）; ＆G; A2 = 180°+ 360°×NA（2）; ＆Ggr; B1 = 360°×2NB（3）; ＆G; B2 = 360°×NB（4）; 并且NB =（＆Dgr; nB /＆Dgr; nA）×（λA/λB）×（0.5 + NA）（5），其中＆Ggr; A1是第一波片上的波长λA的相位差，Ggr; A2 是第二波片上的波长λA的相位差，Ggr; B1是第一波片上的波长λB的相位差，Ggr; B2是第二波片上的波长λB的相位差， 1是第一波片的面内方位角，θ是第二波片的面内方位角，Dgr; nA是双折射差，其是正常射线折射率之间的差（neA-noA） noA和波长λA的异常光线折射率neA，＆Dgr; nB是作为波长λB的正常光线折射率noB和异常光线折射率neB之间的差（neB-noB）的双折射差， 条件和条件; 1 = -21°，＆thetas; 2 = 45°。

公开(公告)号：US07990027B2

公开(公告)日：2011-08-02

申请号：US12406206

申请日：2009-03-18

申请人： Seiichiro Tamura

发明人： Seiichiro Tamura

IPC分类号： H01L41/053

CPC分类号： H03H9/1021 ,  H03H9/0542 ,  Y10T29/42

摘要： A piezoelectric device includes: a container; a piezoelectric resonator element accommodated in the container; a circuit element accommodated in the container so as not to overlap with the piezoelectric resonator element in a plan view; and a mounting stage to which the piezoelectric resonator element is fixed. The mounting stage is fixed inside the container.

摘要翻译： 压电装置包括：容器; 容纳在容器中的压电谐振元件; 容纳在容器中的电路元件，以便在平面图中不与压电谐振元件重叠; 以及固定有压电谐振元件的安装台。 安装台固定在容器内。

公开(公告)号：US20110170400A1

公开(公告)日：2011-07-14

申请号：US13069975

申请日：2011-03-23

申请人： Masayuki OTO

发明人： Masayuki OTO

IPC分类号： G11B7/135 ,  G02B5/30

CPC分类号： G02B5/3083 ,  G02B1/02

摘要： First and a second wave plates using quartz crystal having birefringence are laminated together in such a manner that their optical axes intersect to form a laminated wave plate functioning as a half-wave plate as a whole. Phase differences of the first and the second wave plates relative to an ordinary ray and an extraordinary ray with respect to a predetermined wavelength λ are set to be Γ1 and Γ2, an order of a high-mode order is set to be a natural number n, whereby the high-order mode laminated half-wave plate is formed so as to satisfy: Γ1=180°+360°×n; and Γ2=180°+360°×n.

摘要翻译： 使用具有双折射的石英晶体的第一和第二波片以这样的方式层叠在一起，使得它们的光轴相交，形成作为半波片整体起作用的叠层波片。 第一波片和第二波片相对于普通光线和相对于预定波长λ的非凡射线的相位差被设置为＆Ggr; 1和＆Ggr; 2，高模式次序的顺序被设置为 形成自然数n，由此形成高次模叠层半波片，以满足：＆Ggr; 1 = 180°+ 360°×n; 和＆Ggr; 2 = 180°+ 360°×n。

公开(公告)号：US07942062B2

公开(公告)日：2011-05-17

申请号：US12409784

申请日：2009-03-24

申请人： Hisao Motoyama

发明人： Hisao Motoyama

IPC分类号： G01L9/00

CPC分类号： G01L9/0033

摘要： A pressure sensor includes: a housing; an attachment having a pressure input orifice communicating with an interior of the housing; a first diaphragm that seals an opening of the pressure input orifice of the attachment, an external surface of the first diaphragm being a pressure receiving surface; a force transmitting member having an end which is coupled approximately perpendicular to a main surface of the first diaphragm, the main surface being opposite from the pressure receiving surface; a swing arm which is joined to the force transmitting member and is held to a retainer at a pivoting point as a fulcrum; and a pressure sensing element having a first end coupled to the retainer and a second end coupled to the swing arm, so that a displacement direction of the force transmitting member is the same direction as a line joining the first end and the second end. In this pressure sensor, the force transmitting member, the swing arm, the pressure sensing element, and the retainer are housed inside the housing, and the retainer is fixed to an inner wall of the housing.

摘要翻译： 压力传感器包括：壳体; 具有与所述壳体的内部连通的压力输入孔的附件; 密封附件的压力输入孔的开口的第一隔膜，第一隔膜的外表面是压力接收表面; 力传递构件，其具有大致垂直于所述第一隔膜的主表面结合的端部，所述主表面与所述受压面相对; 摆动臂，其连接到力传递部件，并以枢转点作为支点保持在保持器上; 以及压力感测元件，其具有联接到所述保持器的第一端和联接到所述摆臂的第二端，使得所述力传递构件的位移方向与连接所述第一端和所述第二端的线相同。 在该压力传感器中，力传递部件，摆臂，压力检测元件和保持器容纳在壳体内部，并且保持器固定到壳体的内壁。