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1. 发明授权

US06201337B1 Thickness extensional vibration piezoelectric resonator and piezoelectric resonance device 有权
标题翻译：厚度拉伸振动压电谐振器和压电谐振装置
公开(公告)号：US06201337B1
公开(公告)日：2001-03-13
申请号：US09452741
申请日：1999-12-01
申请人： Hiroaki Kaida , Toru Nagae
发明人： Hiroaki Kaida , Toru Nagae
IPC分类号： H03H917
CPC分类号： H03H9/178 , H03H9/0207 , H03H9/02157
摘要： A thickness-extensional piezoelectric resonator using a harmonic of a thickness-extensional vibration mode has a compact size, large electric capacity, is not affected by the stray capacitance of a circuit board, and has small variations in resonance characteristics. The thickness-extensional piezoelectric resonator includes a piezoelectric body, a first excitation electrode, a second excitation electrode, a terminal electrode and a connection electrode disposed on outer surfaces of the piezoelectric body, as well as an internal electrode inside of the piezoelectric body. Portions where the first excitation electrode, the second excitation electrode and the internal electrode overlap define a resonating portion. In the length direction of the piezoelectric body, a vibration-attenuating portion is defined at opposite sides of the resonating portion, whereas in the width direction, the vibration-attenuating portion is not provided at each side thereof. In addition, a relationship of Go/D≧2.0 is satisfied, wherein Go represents a distance between the terminal electrode and the first excitation electrode, D is substantially equal to T/N, and wherein T is the thickness of the piezoelectric body and N is the order of harmonic vibrations.
摘要翻译：使用厚度 - 拉伸振动模式的谐波的厚度 - 拉伸压电谐振器具有紧凑的尺寸，大的电容，不受电路板的杂散电容的影响，并且谐振特性的变化小。厚度延伸压电谐振器包括压电体，第一激励电极，第二激励电极，端子电极和设置在压电体的外表面上的连接电极，以及压电体内部的内部电极。第一激励电极，第二激励电极和内部电极重叠的部分限定谐振部分。在压电体的长度方向上，在谐振部的相对侧限定有振动衰减部，而在宽度方向上，不设置振动衰减部。另外，满足Go / D> = 2.0的关系，其中Go表示端子电极和第一激励电极之间的距离，D等于T / N，其中T是压电体的厚度， N是谐波振动的次序。

2. 发明授权

US06515401B1 Piezoelectric resonator 有权
标题翻译：压电谐振器
公开(公告)号：US06515401B1
公开(公告)日：2003-02-04
申请号：US09699763
申请日：2000-10-30
申请人： Akira Ando , Masahiko Kimura , Takuya Sawada , Jiro Inoue , Hiroaki Kaida , Toru Nagae
发明人： Akira Ando , Masahiko Kimura , Takuya Sawada , Jiro Inoue , Hiroaki Kaida , Toru Nagae
IPC分类号： H01L4104
CPC分类号： H03H9/177 , H03H9/0207 , H03H9/178
摘要： A piezoelectric resonator which achieves a compact oscillator with high performance having high thermal resistance and a narrow tolerance includes an element body having an excitation layer and a non-excitation layer. One vibration electrode is provided on the surface of the excitation layer and another vibration electrode is provided between the excitation layer and the non-excitation layer. The two vibration electrodes extend from opposing ends of the excitation layer toward the approximate central portion thereof so as to oppose each other at the approximate central portion of the excitation layer. On end-surfaces of the element body, end-surface electrodes are connected to the vibration electrodes, respectively.
摘要翻译：实现具有高耐热性和窄公差的高性能的紧凑型振荡器的压电谐振器包括具有激发层和非激励层的元件体。在激励层的表面上设置一个振动电极，在激励层和非激励层之间设置另一个振动电极。两个振动电极从激励层的相对端向其近似中心部分延伸，以在激发层的大致中心部分彼此相对。在元件体的端面上，端面电极分别连接到振动电极。

3. 发明授权

US06198200B1 Thickness extensional vibration piezoelectric resonator and piezoelectric resonance apparatus 有权
标题翻译：厚度拉伸振动压电谐振器和压电谐振装置
公开(公告)号：US06198200B1
公开(公告)日：2001-03-06
申请号：US09433808
申请日：1999-11-03
申请人： Hiroaki Kaida , Toru Nagae
发明人： Hiroaki Kaida , Toru Nagae
IPC分类号： H01L4104
CPC分类号： H03H9/178 , H03H9/0207 , H03H9/02157
摘要： A thickness extensional vibration piezoelectric resonator includes a strip-type, substantially rectangular plate-shaped piezoelectric body, first and second excitation electrodes disposed on both sides of the piezoelectric body, the back side and the front sides thereof being opposed to each other with the piezoelectric body disposed therebetween, and an internal electrode disposed in the piezoelectric body. The resonator portion where the first and second excitation electrodes and the internal electrode are opposed to each other define a resonance portion. In the longitudinal direction (a first direction) of the piezoelectric body, vibration-attenuating portions are provided on both sides of the resonance portion. The ratio L/D is within the range of about 9.0 to about 14.0, in which L is the length in the longitudinal direction of the piezoelectric body, T is the thickness, and wherein D=T/N.
摘要翻译：厚度延伸振动压电谐振器包括条形基本上矩形的板状压电体，设置在压电体两侧的第一和第二激励电极，其背侧和前侧彼此相对地具有压电并且设置在所述压电体内的内部电极。谐振器部分，其中第一和第二激励电极和内部电极彼此相对限定谐振部分。在压电体的长度方向（第一方向）上，在共振部的两侧设置振动衰减部。比率L / D在约9.0至约14.0的范围内，其中L是压电体的纵向方向上的长度，T是厚度，并且其中D = T / N。

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