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公开(公告)号:US07034433B2
公开(公告)日:2006-04-25
申请号:US10270207
申请日:2002-10-12
申请人: Michio Kadota , Takeshi Nakao , Masakazu Mimura
发明人: Michio Kadota , Takeshi Nakao , Masakazu Mimura
IPC分类号: H01L41/08
CPC分类号: H03H9/02559 , H03H9/14538 , Y10T29/42 , Y10T29/49005 , Y10T29/4908 , Y10T29/49126 , Y10T29/49128 , Y10T29/49156
摘要: A surface acoustic wave device has a high electromechanical coefficient and reflection coefficient, and also has an improved frequency-temperature characteristic that is achieved by forming a SiO2 film on an IDT so as to prevent cracking from occurring on a surface of the SiO2 film so that desired properties can be reliably obtained. The surface acoustic wave device includes at least one IDT, which is composed of a metal or an alloy having a density higher than that of Al and is formed on a 25° to 55° rotation-Y plate X propagation LiTaO3 substrate, and a SiO2 film disposed on the LiTaO3 substrate so as to cover the at least one IDT for improving the frequency-temperature characteristic.
摘要翻译: 表面声波装置具有高的机电系数和反射系数,并且还具有通过在IDT上形成SiO 2膜而实现的改善的频率温度特性,以防止在 SiO 2膜的表面,使得可以可靠地获得期望的性能。 表面声波装置包括至少一个IDT,其由密度高于Al的金属或合金构成,并且形成在25°至55°的旋转Y板X传播LiTaO 3上, / SUB>衬底和设置在LiTaO 3衬底上的SiO 2膜以覆盖至少一个IDT以提高频率 - 温度特性。
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公开(公告)号:US07134335B2
公开(公告)日:2006-11-14
申请号:US10923232
申请日:2004-08-20
申请人: Masato Koike , Katsumi Fujimoto
发明人: Masato Koike , Katsumi Fujimoto
IPC分类号: G01P9/04
CPC分类号: G01C19/5642
摘要: A vibratory gyro piezoelectric vibrator includes a vibrating body having a laminate of piezoelectric layers stacked on each other in a lamination direction, and having a length extending in the lamination direction. The vibratory gyro piezoelectric vibrator uses longitudinal piezoelectric effects of the piezoelectric layers and operates such that a first bending vibration is excited in which the vibrating body bends in a width direction of the vibrating body substantially perpendicular to the lamination direction of the piezoelectric layers, and a Coriolis force is caused in response to the first bending vibration such that a second bending vibration is excited in which the vibrating body bends in a thickness direction of the vibrating body substantially perpendicular to both of the lamination direction and the vibration direction of the first bending vibration.
摘要翻译: 振动陀螺压电振动器包括:振动体,其具有在层叠方向上彼此堆叠的压电层的层压体,并且具有沿层叠方向延伸的长度。 振动陀螺压电振动器使用压电层的纵向压电效应,并且进行动作,使得第一弯曲振动被激发,其中振动体在基本上垂直于压电层的层叠方向的振动体的宽度方向上弯曲,并且 引起响应于第一弯曲振动的科里奥利力,使得第二弯曲振动被激发,其中振动体在基本上垂直于第一弯曲振动的层叠方向和振动方向的振动体的厚度方向上弯曲 。
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公开(公告)号:US07021834B2
公开(公告)日:2006-04-04
申请号:US10506027
申请日:2004-03-18
申请人: Shozo Ohtera
发明人: Shozo Ohtera
IPC分类号: G02B6/36
CPC分类号: G02B6/4292 , G02B6/3825 , G02B6/4201 , G02B6/4256
摘要: A package module includes a module case and an adapter case attached to the module case. The module case accommodates a circuit board, and the adapter is used for connecting an external connector. An opening at an end of the adapter case functions as an entry to receive the external connector. Another opening at the other end functions as a connection hole to be attached to the module case. A fit-receiving portion is mounted on the upper wall adjacent to the connection hole of the adapter case in such a way that a fit-receiving opening faces down. When the module case is moved upward relative to the adapter case, a fit projection is fit into a fit-receiving portion to connect the module case and the adapter case.
摘要翻译: 封装模块包括模块外壳和连接到模块外壳的适配器外壳。 模块外壳可容纳电路板,适配器用于连接外部连接器。 适配器外壳端部的开口用作接收外部连接器的入口。 另一端的另一个开口用作连接到模块外壳的连接孔。 配合接收部分以适配接收开口面向下的方式安装在邻近适配器壳体的连接孔的上壁上。 当模块壳体相对于适配器壳体向上移动时,将配合突起装配到装配接收部分中以连接模块壳体和适配器壳体。
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