公开(公告)号：US06992424B2

公开(公告)日：2006-01-31

申请号：US10467742

申请日：2002-02-07

申请人： Yukinori Sasaki ,  Tetsuro Shimamura ,  Tetsuo Kawasaki ,  Kazunari Nishihara ,  Tetsuya Furihata ,  Kuniaki Matsushita ,  Katsunori Moritoki ,  Katsu Takeda

发明人： Yukinori Sasaki ,  Tetsuro Shimamura ,  Tetsuo Kawasaki ,  Kazunari Nishihara ,  Tetsuya Furihata ,  Kuniaki Matsushita ,  Katsunori Moritoki ,  Katsu Takeda

IPC分类号： H01L41/08

CPC分类号： H03H9/177 ,  H03H9/02031 ,  H03H9/02157 ,  H03H9/562 ,  H03H9/581

摘要： A piezoelectric vibrator which uses lithium tantalate as a piezoelectric material and of which main vibration is thickness shear vibration. The thickness direction of the vibrator forms angle of 0°±5° to the X-axis of a single crystal. The longitudinal direction of vibrator lies, with the X-axis used as a rotation axis, in direction n +57°±2° clockwise from the Y-axis of the single crystal. A ratio L/H of the length L of the vibrator to the thickness H is not less than 15. A ratio Le/H of the length Le of the exciting electrode to the thickness H of the vibrator element portion is 3–6. Accordingly, a vibrator having improved temperature characteristics and a large Q is realized.

摘要翻译： 一种使用钽酸锂作为压电材料并且主要振动是厚度剪切振动的压电振动器。 振动器的厚度方向与单晶的X轴形成0°±5°的角度。 振动器的纵向方向以X轴用作旋转轴线，从单晶Y轴顺时针方向n + 57°±2°。 振动器的长度L与厚度H的比L / H不小于15.激励电极的长度Le与振动元件部分的厚度H之比Le / H为3-6。 因此，实现了具有改善的温度特性和大的Q的振动器。

公开(公告)号：US06550116B2

公开(公告)日：2003-04-22

申请号：US09768349

申请日：2001-01-25

申请人： Kazunari Nishihara ,  Kiyotomo Kubota ,  Hirohumi Tajika ,  Koji Nomura ,  Tetsuro Shimamura ,  Yukinori Sasaki ,  Masako Yamaguchi

发明人： Kazunari Nishihara ,  Kiyotomo Kubota ,  Hirohumi Tajika ,  Koji Nomura ,  Tetsuro Shimamura ,  Yukinori Sasaki ,  Masako Yamaguchi

IPC分类号： H04R1700

CPC分类号： G01P15/0922 ,  B06B1/0603 ,  G01P15/0802 ,  H01L41/1132 ,  Y10T29/42 ,  Y10T29/49155 ,  Y10T29/49156 ,  Y10T29/49789 ,  Y10T29/49798

摘要： A method for manufacturing a bimorph type piezoelectric element including a first step of providing a first piezoelectric single-crystal plate having a first surface and a second surface; a second step of providing a second piezoelectric single-crystal plate having a third surface and a fourth surface; a third step of directly bonding the third surface of the second piezoelectric single-crystal plate to the first surface of the first piezoelectric single-crystal plate without using any adhesives; a fourth step of forming a freely vibrating part by grinding away the second surface of the first piezoelectric single-crystal plate to a first depth and with a first spacing; and a fifth step of producing an element having a supporting member and the freely vibrating part by cutting the first piezoelectric single-crystal plate and second piezoelectric single-crystal plate with the freely vibrating part included, which have been prepared in the fourth step, with a predetermined spacing and at least in one of the directions of rows and columns.

摘要翻译： 一种双压电晶片型压电元件的制造方法，包括：第一工序，设置具有第一表面和第二表面的第一压电单晶板; 提供具有第三表面和第四表面的第二压电单晶板的第二步骤; 在不使用任何粘合剂的情况下将第二压电单晶板的第三表面直接接合到第一压电单晶板的第一表面的第三步骤; 第四步骤，通过将第一压电单晶板的第二表面研磨成第一深度并以第一间隔形成自由振动部分; 以及第五步骤，通过在第四步骤中制备的具有包括自由振动部分的第一压电单晶板和第二压电单晶板来制造具有支撑部件和自由振动部件的元件， 预定的间距和至少在行和列的方向中的一个方向上。

公开(公告)号：US06246155B1

公开(公告)日：2001-06-12

申请号：US09147789

申请日：1999-03-09

申请人： Kazunari Nishihara ,  Kiyotomo Kubota ,  Hirohumi Tajika ,  Koji Nomura ,  Tetsuro Shimamura ,  Yukinori Sasaki ,  Masako Yamaguchi

发明人： Kazunari Nishihara ,  Kiyotomo Kubota ,  Hirohumi Tajika ,  Koji Nomura ,  Tetsuro Shimamura ,  Yukinori Sasaki ,  Masako Yamaguchi

IPC分类号： H01L4108

CPC分类号： H01L41/1132 ,  B06B1/0603 ,  G01P15/0802 ,  G01P15/0922

摘要： The present invention relates to a bimorph type piezoelectric acceleration sensor used in detecting vibrations of a variety of equipment such as a hard disk, CD-ROM and the like and has the objective of providing a bimorph type piezoelectric element for acceleration sensor of a small size, high sensitivity, a narrow range of sensitivity variation and a low cost by forming a freely vibrating part and a supporting means at the same time in single-piece construction through a grinding away process applied to lithium niobate. One section of a structure formed of two of a lithium niobate single-crystal plate directly bonded together with the polarization directions thereof reversed each other is applied with a grinding away process to produce a freely vibrating part (32a) and the remaining section, where no grinding away process has been applied, serves as a supporting member (33a), thus both being formed simultaneously and made integral with each other, and electrodes (31a, 31b) are formed by electroless plating.

摘要翻译： 本发明涉及用于检测诸如硬盘，CD-ROM等各种设备的振动的双压电晶片型压电加速度传感器，其目的是提供一种小型加速度传感器的双压电晶片式压电元件 灵敏度高，灵敏度变化范围窄，成本低，通过在铌酸锂中的磨削工艺，通过自由振动部件和支撑装置同时进行单件式构造。 将由两个直接接合在一起的极性方向的铌酸锂单晶板形成的结构的一个部分用磨削过程施加以产生自由振动部分（32a），其余部分 已经施加了磨削过程，用作支撑构件（33a），因此两者同时形成并且彼此一体形成，并且通过无电镀形成电极（31a，31b）。

公开(公告)号：US06191524B1

公开(公告)日：2001-02-20

申请号：US09328390

申请日：1999-06-09

申请人： Yukinori Sasaki ,  Tetsuro Shimamura

发明人： Yukinori Sasaki ,  Tetsuro Shimamura

IPC分类号： H03B532

CPC分类号： H03H9/177 ,  H03H9/02133 ,  H03H9/0595 ,  H03H9/132

摘要： A piezoelectric vibrator using thickness mode as the primary vibration and having a cross section of a bevel or convex configuration is provided which is superior in mechanical strength, easy to steadily mount, and has a small dispersion of characteristic. By employing a structure in which a vibrator 1 and a support section 2 are composed of the same material, the end portions of the vibrator section are integrated with the support section on the periphery of the vibrator, and the configuration of the cross section of the vibrator 1 is such that the thicknesses of the end portions of the vibrator are smaller than that of the central portion of the vibrator, a superior mechanical strength without chipping or cracking at the end portions of the vibrator is obtained allowing easy mounting while keeping the vibrator size small. The structure provides an added effect of a small dispersion of characteristic because the end portions of the vibrator are not exposed and the dispersion of the precision of working such as chipping and surface roughness at the end portions of the vibrator is small.

摘要翻译： 提供了使用厚度模式作为一次振动并且具有倾斜或凸起构造的横截面的压电振动器，其机械强度优异，易于稳定地安装，并且具有小的特性分散。 通过使用振动器1和支撑部2由相同的材料构成的结构，振动部的端部与振动器的周边上的支撑部一体化，并且该截面的形状 振动器1使得振动器的端部的厚度小于振动器的中心部分的厚度，获得了在振动器的端部处没有破裂或破裂的优异的机械强度，从而允许容易地安装，同时保持振动器 尺寸小。 该结构提供了由于振动器的端部不被暴露并且振动器的端部处的诸如切屑和表面粗糙度的加工精度的偏差小而导致的特征的小的色散的附加效果。

公开(公告)号：US20050012569A1

公开(公告)日：2005-01-20

申请号：US10500393

申请日：2003-10-24

申请人： Yukinori Sasaki

发明人： Yukinori Sasaki

IPC分类号： H01L41/09 ,  H01L41/187 ,  H03H3/04 ,  H03H9/02 ,  H03H9/17 ,  H03H9/54 ,  H03H9/56 ,  H03H9/58

CPC分类号： H03H3/04 ,  H03H9/0207 ,  H03H9/02102 ,  H03H9/02133 ,  H03H9/174 ,  H03H9/177 ,  H03H9/562 ,  H03H9/564 ,  H03H9/588

摘要： A piezoelectric vibrator has a laminated structure where silicon oxide films having substantially the same thickness are disposed at both faces of piezoelectric plate as dielectric films. Using the structure discussed above, because dielectric films are formed at the both faces of the piezoelectric plate a difference of internal stress, which is caused by a difference of stress relaxation in a long term and affects the piezoelectric plate or the dielectric film, becomes small. Therefore, a warp can be considerably small. As a result, a change, which is caused by the warp of the piezoelectric vibrator, in a resonance frequency of the piezoelectric vibrator can be small.

摘要翻译： 压电振动器具有层压结构，其中具有基本相同厚度的氧化硅膜被设置在压电板的两面作为电介质膜。 使用上述结构，由于在压电板的两面形成有电介质膜，所以由长期的应力松弛的差异引起的内部应力的差异对压电板或电介质膜的影响变小 。 因此，翘曲可以相当小。 结果，在压电振动器的共振频率下由压电振动器的翘曲引起的变化可以很小。

公开(公告)号：US06518688B1

公开(公告)日：2003-02-11

申请号：US09674449

申请日：2001-02-28

申请人： Yukinori Sasaki

发明人： Yukinori Sasaki

IPC分类号： H01L4108

CPC分类号： H03H9/0207 ,  H03H9/177 ,  H03H9/56

摘要： A piezoelectric vibration element comprises a vibration element part 1, a vibration propagation part 2 made of a same material with a greater thickness than the vibration element part 1, a groove 6 disposed in the boundary of the vibration element part 1 and vibration propagation part 2, excitation electrodes 3 confronting the face side and back side of the vibration element part 1, a connection electrode 4 disposed in the vibration propagation part 2, and an external lead-out electrode 5 connected electrically to the connection electrode 4. In this piezoelectric vibration element, the main vibration is the overtone mode, that is, when the lowest order wave mode is first-order or second-order, the wavelength in the thickness direction is (2n+1) times (n being a natural number) thereof.

摘要翻译： 压电振动元件包括振动元件部分1，由与振动元件部分1相比厚度大的相同材料制成的振动传播部分2，设置在振动元件部分1的边界上的槽6和振动传播部分2 面对振动元件部分1的正面和背面的激励电极3，设置在振动传播部分2中的连接电极4和与连接电极4电连接的外部引出电极5.在该压电振动 主振动是泛音模式，即当最低阶波模为一阶或二阶时，厚度方向的波长为（2n + 1）倍（n为自然数）。

公开(公告)号：US20080028348A1

公开(公告)日：2008-01-31

申请号：US11629909

申请日：2006-04-11

申请人： Yukinori Sasaki ,  Mamoru Ito

发明人： Yukinori Sasaki ,  Mamoru Ito

IPC分类号： G06F17/50

CPC分类号： G06F17/5036 ,  G06F17/5068 ,  H05K1/0306 ,  H05K1/162 ,  H05K1/165 ,  H05K1/167 ,  H05K3/0005 ,  H05K3/4611 ,  H05K3/4629

摘要： A designing method of an electronic component aiming at increase in designing efficiency is provided. The designing method has step (21) of setting a predetermined electrical characteristic, step (22) of determining an electric constant of the component with a first electric circuit simulation to satisfy the predetermined electrical characteristic, step (23) of determining a pattern shape for obtaining the electric constant, step (24) of retrieving and selecting an electronic component matching with the electric constant from a database, and performing layout design using the selected electronic component as a module, step (25) of performing a second electric circuit simulation, and step (26) of determining whether the electrical characteristic of the module matches with the predetermined electrical characteristic.

摘要翻译： 提供了旨在提高设计效率的电子部件的设计方法。 设计方法具有设定预定电气特性的步骤（21），通过第一电路模拟来确定部件的电常数以满足预定的电气特性的步骤（22），确定图形形状的步骤（23） 从数据库获取和选择与电常数匹配的电子部件的步骤（24），以及使用所选择的电子部件作为模块执行布局设计的步骤（24）;执行第二电路仿真的步骤（25） 以及步骤（26），确定模块的电特性是否与预定的电特性相匹配。

公开(公告)号：US20060217909A1

公开(公告)日：2006-09-28

申请号：US10552759

申请日：2004-08-05

申请人： Kazuhide Uriu ,  Toru Yamada ,  Yukinori Sasaki

发明人： Kazuhide Uriu ,  Toru Yamada ,  Yukinori Sasaki

IPC分类号： G01R27/00

CPC分类号： G06F17/5036 ,  H01F17/0013 ,  H05K3/0005

摘要： A method for analyzing an electromagnetic field includes: a step S1 for setting up initial shapes of conductor patterns in each layer of a multilayer circuit board; a step S2 for setting up initial ports for input or output of an external signal in each conductor pattern; a step S3 for dividing two-dimensionally the multilayer circuit board into a plurality of areas; steps S4a and S4b for setting up additive ports on edges of the conductor pattern which has been created by area-division; steps S5a and S5b for setting up individual analysis conditions for the initial ports and the additive ports, respectively; steps S6a and S6b for performing an electromagnetic analysis of the multilayer circuit board by the divided area, based on the analysis conditions; and a step S8 for integrating results of the electromagnetic analysis over each of the divided areas, thereby obtaining results of the electromagnetic analysis over the whole circuit board. By using this approach, an EM analysis of a multilayer circuit board can run quickly to significantly reduce time and cost required for designing the circuit board.

摘要翻译： 一种用于分析电磁场的方法包括：步骤S1，用于设置多层电路板的各层中的导体图案的初始形状; 步骤S2，用于设置用于每个导体图案中的外部信号的输入或输出的初始端口; 步骤S3，用于将多层电路板二维地分割成多个区域; 步骤S4a和S4b，用于在通过区域划分创建的导体图案的边缘上设置添加剂端口; 步骤S5a和S5b分别为初始端口和添加剂端口建立单独的分析条件; 步骤S6a和S6b，用于基于所述分析条件对所述分割区域进行所述多层电路板的电磁分析; 以及步骤S 8，用于对每个分割区域的电磁分析结果进行积分，从而获得整个电路板上的电磁分析结果。 通过使用这种方法，多层电路板的EM分析可以快速运行，以显着减少设计电路板所需的时间和成本。

公开(公告)号：US07129799B2

公开(公告)日：2006-10-31

申请号：US10473761

申请日：2002-03-29

申请人： Yukinori Sasaki

发明人： Yukinori Sasaki

IPC分类号： H03B5/32

CPC分类号： H03H9/177 ,  H03H9/132 ,  H03H9/562 ,  H03H9/581

摘要： A piezoelectric oscillator using zinc oxide as a piezoelectric plate which eliminates unwanted resonance called inharmonic overtone by optimizing ratio Le/H of driving electrode length Le to oscillator thickness H. Ratio Le/H is set between 4 and 100 in the piezoelectric oscillator polarized in a thickness direction of a piezoelectric plate and using thickness extension vibration as main vibration or the piezoelectric oscillator polarized in a length direction of the piezoelectric plate and using thickness shear vibration as main vibration. This achieves stable characteristic because no unwanted resonance exists between the resonance frequency and anti-resonance frequency of the main vibration.

摘要翻译： 使用氧化锌作为压电板的压电振荡器，其通过优化驱动电极长度Le与振荡器厚度H的比率Le / H来消除不需要的共振称为非调谐泛音。在压电振荡器中将比率Le / H设置在4和100之间， 压电板的厚度方向，使用厚度延伸振动作为主振动，或压电振荡器在压电板的长度方向上极化并使用厚度剪切振动作为主振动。 这实现了稳定的特性，因为在主振动的谐振频率和反共振频率之间不存在不需要的共振。

公开(公告)号：US07496875B2

公开(公告)日：2009-02-24

申请号：US11629909

申请日：2006-04-11

申请人： Yukinori Sasaki ,  Mamoru Ito

发明人： Yukinori Sasaki ,  Mamoru Ito

IPC分类号： G06F17/50

CPC分类号： G06F17/5036 ,  G06F17/5068 ,  H05K1/0306 ,  H05K1/162 ,  H05K1/165 ,  H05K1/167 ,  H05K3/0005 ,  H05K3/4611 ,  H05K3/4629

摘要： A designing method for designing an electronic component aiming at increase in designing efficiency is provided. The designing method has a step of setting a predetermined electrical characteristic, a step of determining an electric constant of the component with a first electric circuit simulation to satisfy the predetermined electrical characteristic, a step of determining a pattern shape for obtaining the electric constant, a step of retrieving and selecting an electronic component matching with the electric constant from a database, and performing layout design using the selected electronic component as a module, a step of performing a second electric circuit simulation, and a step of determining whether the electrical characteristic of the module matches with the predetermined electrical characteristic.

摘要翻译： 提供了一种设计旨在提高设计效率的电子部件的设计方法。 该设计方法具有设定预定的电气特性的步骤，通过第一电路模拟确定部件的电常数以满足预定的电气特性的步骤，确定用于获得电常数的图案形状的步骤， 从数据库检索和选择与电常数匹配的电子部件的步骤，以及使用所选择的电子部件作为模块执行布局设计，执行第二电路仿真的步骤，以及确定电气特性的步骤 该模块与预定的电气特性匹配。