公开(公告)号：US20180269832A1

公开(公告)日：2018-09-20

申请号：US15919701

申请日：2018-03-13

Applicant: SEIKO EPSON CORPORATION

Inventor： Naohisa OBATA

IPC: H03B5/04 ,  H03B5/32 ,  H01L41/053 ,  H01L41/23

Abstract: An oscillator includes a vibration element, an oscillation circuit configured to oscillate the vibration element and output an oscillation signal, a temperature sensor, a temperature compensation circuit configured to compensate for a frequency temperature characteristic of the vibration element based on an output signal of the temperature sensor. The vibration element is within a first case having a first atmosphere, and the oscillation circuit, the temperature sensor, and the first case are within a second case having a second atmosphere, whereby the first atmosphere has a higher thermal conductivity than the second atmosphere.

公开(公告)号：US20170279409A1

公开(公告)日：2017-09-28

申请号：US15618592

申请日：2017-06-09

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H03B5/32 ,  H03H9/13 ,  H03H9/17 ,  H03H9/10

CPC classification number: H03B5/32 ,  H03H9/1021 ,  H03H9/132 ,  H03H9/171

Abstract: In a crystal resonator, a resonator element is installed in a package via a first bonding member and a second bonding member, and when viewed from above, a distance between a first bonding center and a second bonding center is set to be L1, and a length of a perpendicular line drawn to a virtual line which connects the first bonding center and the second bonding center from the resonation area center is set to be L2, a relationship expressed by 0

公开(公告)号：US20170099040A1

公开(公告)日：2017-04-06

申请号：US15285754

申请日：2016-10-05

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H03H9/19 ,  H03K3/01 ,  H03H9/25

CPC classification number: H03H9/19 ,  H03H9/02133 ,  H03H9/0519 ,  H03H9/1021 ,  H03H9/17 ,  H03H9/25 ,  H03K3/01

Abstract: A resonator device includes a substrate, a resonator element including a base member having first and second surface, and a pair of excitation electrodes, and first and second bonding member. Defining center of the first and second bonding member as a first and second bonding center, a center of a resonating region as a resonating region center, and defining a distance between the first bonding center and the second bonding center as L1, a length of a perpendicular drawn from the resonating region center to an imaginary line connecting the first bonding center and the second bonding center to each other as L2, a linear expansion coefficient of the first metal layer, the second metal layer, and the base member as α1, α2, α3 respectively, and a length of the resonator element as L3, 0

公开(公告)号：US20190044499A1

公开(公告)日：2019-02-07

申请号：US16152535

申请日：2018-10-05

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H03H9/19 ,  H03H9/10 ,  H03H9/25 ,  H03H9/17 ,  H03K3/01 ,  H03H9/05 ,  H03H9/02

Abstract: A resonator device includes a substrate, a resonator element including a base member having first and second surface, and a pair of excitation electrodes, and first and second bonding member. Defining center of the first and second bonding member as a first and second bonding center, a center of a resonating region as a resonating region center, and defining a distance between the first bonding center and the second bonding center as L1, a length of a perpendicular drawn from the resonating region center to an imaginary line connecting the first bonding center and the second bonding center to each other as L2, a linear expansion coefficient of the first metal layer, the second metal layer, and the base member as α1, α2, α3 respectively, and a length of the resonator element as L3, 0

公开(公告)号：US20180278209A1

公开(公告)日：2018-09-27

申请号：US15928228

申请日：2018-03-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Naohisa OBATA ,  Takuya OWAKI

IPC: H03B5/04 ,  H03B5/32 ,  H05K7/20

CPC classification number: H03B5/04 ,  H03B5/32 ,  H03B2200/0008 ,  H03B2200/001 ,  H03B2200/0012 ,  H03H9/02102 ,  H03H9/0547 ,  H03L1/02 ,  H05K7/20136

Abstract: A temperature compensated oscillator includes a resonator element, an oscillation circuit, and a temperature compensation circuit. Assuming an observation time as T, an MTIE value at 0.1 s

公开(公告)号：US20160285464A1

公开(公告)日：2016-09-29

申请号：US15075661

申请日：2016-03-21

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H03L1/04 ,  H03B5/12 ,  H03B5/36

CPC classification number: H03L1/04 ,  H03B5/36 ,  H03B5/366 ,  H03L1/022 ,  H03L1/026 ,  H03L1/028

Abstract: An oscillator includes a resonator element; an oscillation circuit which outputs an oscillation signal by oscillating the resonator element; and a temperature compensation circuit as a frequency control circuit which controls an oscillation frequency of the oscillation signal, wherein, if a resonance frequency of the resonator element is referred to as Fr (MHz) and an equivalent series capacitance is referred to as C1 (fF), a relationship of C1≧0.00279×Fr2−0.05684×Fr+2.69481 is satisfied.

Abstract translation: 振荡器包括谐振元件; 振荡电路，其通过振荡所述谐振器元件来输出振荡信号; 以及作为控制振荡信号的振荡频率的频率控制电路的温度补偿电路，其中，如果将谐振器元件的谐振频率称为Fr（MHz），将等效的串联电容称为C1（fF ），满足C1≥0.00279×Fr2-0.05684×Fr + 2.69481的关系。

公开(公告)号：US20190267941A1

公开(公告)日：2019-08-29

申请号：US16286789

申请日：2019-02-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Naohisa OBATA

IPC: H03B5/04 ,  H03B5/32 ,  H01L41/053 ,  H01L41/047 ,  H03H9/02 ,  H03H9/05 ,  H03H9/10 ,  H03H9/19

Abstract: An oscillator includes a first package that is airtightly sealed, a second package that is housed in the first package and airtightly sealed, a resonation element that is housed in the second package, and a circuit element that is housed in the first package in a state of being positioned outside the second package and electrically connected to the resonation element and has an oscillation circuit and a temperature compensation circuit. In addition, the first package includes abase having two main surfaces and a recessed portion provided on one of the main surfaces, and a lid joined to the base so as to close the opening of the recessed portion. The circuit element is attached to the base, and the second package is attached to the circuit element.

公开(公告)号：US20160197595A1

公开(公告)日：2016-07-07

申请号：US14988158

申请日：2016-01-05

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H03H9/17 ,  H03B5/32 ,  H03H9/13

CPC classification number: H03B5/32 ,  H03H9/1021 ,  H03H9/132 ,  H03H9/171

Abstract: In a crystal resonator, a resonator element is installed in a package via a first bonding member and a second bonding member, and when viewed from above, a distance between a first bonding center and a second bonding center is set to be L1, and a length of a perpendicular line drawn to a virtual line which connects the first bonding center and the second bonding center from the resonation area center is set to be L2, a relationship expressed by 0

Abstract translation: 在晶体谐振器中，谐振元件经由第一接合构件和第二接合构件安装在封装中，并且当从上方观察时，将第一接合中心与第二接合中心之间的距离设置为L1，并且 将从第一接合中心和第二接合中心与谐振区域中心连接的虚拟线的线垂直线的长度设定为L2，由0

公开(公告)号：US20160020748A1

公开(公告)日：2016-01-21

申请号：US14801071

申请日：2015-07-16

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA ,  Yusuke YAMAMOTO

IPC: H03H9/19 ,  H01L41/047 ,  H03B5/32

CPC classification number: H03H9/19 ,  H01L41/047 ,  H03B5/32 ,  H03H9/02023 ,  H03H9/02102 ,  H03H9/02133 ,  H03H9/0519 ,  H03H9/132

Abstract: A vibration element includes a substrate having first and second principal surfaces, a first excitation electrode on the first principal surface, a second excitation electrode on the second principal surface, and a first extraction electrode on the first principal surface, and connected to the first excitation electrode. The first extraction electrode includes a first electrode section, and a second electrode section extending from the first electrode section in a first direction and connected to the first excitation electrode. The second electrode section is narrower in a second direction than the first electrode section. When an area of the first excitation electrode is S1, and an area of an overlapping part where the second electrode section overlaps the second excitation electrode is S2, (S2/S1)≦0.1.

Abstract translation: 振动元件包括具有第一和第二主表面的基板，第一主表面上的第一激励电极，第二主表面上的第二激励电极和第一主表面上的第一引出电极，并连接到第一激励 电极。 第一引出电极包括第一电极部分和从第一电极部分沿第一方向延伸并连接到第一激励电极的第二电极部分。 第二电极部分在比第一电极部分的第二方向更窄。 当第一激励电极的面积为S1时，第二电极部分与第二激发电极重叠的重叠部分的面积为S2，（S2 / S1）＆nlE; 0.1。

公开(公告)号：US20140285063A1

公开(公告)日：2014-09-25

申请号：US14295748

申请日：2014-06-04

Applicant: Seiko Epson Corporation

Inventor： Naohisa OBATA

IPC: H01L41/04

CPC classification number: H03H9/02551 ,  H01L41/04 ,  H03H9/0542 ,  H03H9/14594

Abstract: A SAW device includes an IDT which is provided on the principal surface of a quartz crystal substrate having Euler angles (−1.5°≦φ≦1.5°, 117°≦θ≦142°, |ψ|90°×n (where n=0, 1, 2, 3)) and excites a Rayleigh wave (wavelength: λ) in a stopband upper end mode. Inter-electrode-finger grooves are recessed between electrode fingers of the IDT. An IDT line occupancy η and an inter-electrode-finger groove depth G satisfy a predetermined relationship in terms of the wavelength λ, such that the SAW device has a frequency-temperature characteristic of a cubic curve having an inflection point between a maximum value and a minimum value in an operation temperature range. The inflection point is adjustable to a desired temperature or a desired temperature range depending on the IDT line occupancy η within an operation temperature range.

Abstract translation: SAW器件包括设置在具有欧拉角（-1.5°＆amp; nlE; 1.5°，117°＆amp; nlE; 1.5°，117°＆nlE;＆Thetas;＆nlE; 142°，|ψ| 90°）的石英晶体基板的主表面上的IDT ×n（其中n = 0,1,2,3））并且在阻带上端模式中激发瑞利波（波长：λ）。 电极间指状槽在IDT的电极指之间凹进。 IDT线路占用率 并且电极指槽深度G在波长λ方面满足预定关系，使得SAW器件具有在具有最大值和最小值之间的拐点的三次曲线的频率温度特性 工作温度范围。 根据IDT线路占有率，拐点可调节到所需温度或期望的温度范围; 在工作温度范围内。