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1. 发明授权

US11637544B2 Piezoelectric resonator device and system-in-package module including the same 有权
公开(公告)号：US11637544B2
公开(公告)日：2023-04-25
申请号：US16339714
申请日：2017-11-21
申请人： Daishinku Corporation
发明人： Takuya Kojo
IPC分类号： H03H9/05 , H03H9/02 , H10N30/071 , H03H9/17 , H01L25/00 , H01L23/04 , H03B5/32
摘要： A crystal oscillator (101) includes: a piezoelectric resonator plate (2) on which a first excitation electrode and a second excitation electrode are formed; a first sealing member (3) covering the first excitation electrode of the piezoelectric resonator plate (2); a second sealing member (4) covering the second excitation electrode of the piezoelectric resonator plate (2); and an internal space (13) formed by bonding the first sealing member (3) to the piezoelectric resonator plate (2) and by bonding the second sealing member (4) to the piezoelectric resonator plate (2), so as to hermetically seal a vibrating part including the first excitation electrode and the second excitation electrode of the piezoelectric resonator plate (2). An electrode pattern (371) including a mounting pad for wire bonding is formed on an outer surface (first main surface (311)) of the first sealing member (3).

2. 发明申请

US20230014023A1 OVEN-CONTROLLED CRYSTAL OSCILLATOR 有权
公开(公告)号：US20230014023A1
公开(公告)日：2023-01-19
申请号：US17783001
申请日：2021-09-06
申请人： DAISHINKU CORPORATION
发明人： Takuya KOJO
IPC分类号： H03B5/32 , H03L1/04
摘要： An oven-controlled crystal oscillator according to one or more embodiments includes a core section having at least an oscillation IC, a crystal resonator, and a heater IC. The core section is hermetically encapsulated in a heat-insulating package. The core section is supported by the package via a core substrate. The core substrate is connected to the package outside a region where the core section is provided in plan view.

3. 发明授权

US11342901B2 Crystal resonator plate and crystal resonator device 有权
公开(公告)号：US11342901B2
公开(公告)日：2022-05-24
申请号：US16327293
申请日：2017-07-31
申请人： Daishinku Corporation
发明人： Yoshinari Morimoto , Ryota Yamauchi
IPC分类号： H03H9/19 , H03H9/02 , H03H9/10 , H03H9/17
摘要： An AT-cut crystal resonator plate includes: a vibrating part having a rectangular shape in plan view that is disposed on a center of the AT-cut crystal resonator plate and that has excitation electrodes respectively formed on a first and a second main surfaces; a cut-out part having a rectangular shape in plan view that is formed along an outer periphery of the vibrating part; an external frame part having a rectangular shape in plan view that is formed along an outer periphery of the cut-out part; and a connecting part that connects the vibrating part to the external frame part and that extends, in a Z′ axis direction of the vibrating part, from one end part of a side of the vibrating part along an X axis direction. The connecting part includes wide parts whose widths gradually increase only toward the external frame part.

4. 发明授权

US11342899B2 Crystal resonator device 有权
公开(公告)号：US11342899B2
公开(公告)日：2022-05-24
申请号：US16348492
申请日：2017-10-30
申请人： Daishinku Corporation
发明人： Takuya Kojo
IPC分类号： H03H9/10 , H03H9/02 , H03H9/05 , H03H9/19 , H01L23/02 , H01L23/08 , H03B5/36
摘要： In a crystal oscillator, a crystal resonator and an IC chip are hermetically sealed in a package. The crystal resonator includes: a crystal resonator plate including a first excitation electrode formed on a first main surface, and a second excitation electrode, which makes a pair with the first excitation electrode, formed on a second main surface; a first sealing member covering the first excitation electrode of the crystal resonator plate; and a second sealing member covering the second excitation electrode of the crystal resonator plate. A vibrating part including the first excitation electrode and the second excitation electrode of the crystal resonator plate is hermetically sealed by bonding the first sealing member to the crystal resonator plate, and the second sealing member to the crystal resonator plate.

5. 发明授权

US11239824B2 Tuning fork-type vibrator 有权
公开(公告)号：US11239824B2
公开(公告)日：2022-02-01
申请号：US16473409
申请日：2017-12-19
申请人： DAISHINKU CORPORATION
发明人： Tomo Fujii , Hiroaki Yamashita
IPC分类号： H03H9/21 , H03H9/10 , H03H9/13
摘要： A tuning fork-type vibration piece is provided, in which a cushioning portion is formed on the base of a package to make contact with abutting portions of arm portions which are any parts but their edges, and the abutting portions of the arm portions allowed to contact the cushioning portion are electrodeless regions including no electrode, which prevents the risk of frequency fluctuations that may occur in case an electrode is chipped off by possible contact with the cushioning portion.

6. 发明申请

US20210399715A1 PIEZOELECTRIC RESONATOR DEVICE 有权
公开(公告)号：US20210399715A1
公开(公告)日：2021-12-23
申请号：US17289261
申请日：2019-10-29
申请人： DAISHINKU CORPORATION
发明人： Satoru ISHINO , Takuya KOJO
IPC分类号： H03H9/19 , H03B5/34 , H01L41/18
摘要： In a crystal oscillator, a crystal resonator plate is bonded to, via laminated bonding patterns, a first sealing member covering a first excitation electrode of the crystal resonator plate; and a second sealing member covering a second excitation electrode of the crystal resonator plate. An internal space is formed, which hermetically seals a vibrating part including the first and second excitation electrodes of the crystal resonator plate. The laminated bonding patterns include a laminated sealing pattern annularly formed to surround the vibrating part in plan view so as to hermetically seal the internal space, and a laminated conductive pattern establishing conduction between wiring and electrodes. The laminated conductive pattern is disposed within a closed space surrounded by the laminated sealing pattern. To the laminated sealing pattern, GND potential is applied when the crystal oscillator operates.

7. 发明授权

US11152910B2 Piezoelectric resonator device 有权
公开(公告)号：US11152910B2
公开(公告)日：2021-10-19
申请号：US16338695
申请日：2017-11-14
申请人： Daishinku Corporation
发明人： Takuya Kojo
IPC分类号： H03H9/02 , H03H9/05 , H03H9/10 , H03H9/19
摘要： A crystal oscillator includes: a crystal resonator plate having a first excitation electrode and a second excitation electrode. A first sealing member covers the first excitation electrode of the crystal resonator plate. A second sealing member covers the second excitation electrode of the crystal resonator plate. An internal space is formed by bonding the first sealing member to the crystal resonator plate and the second sealing member to the crystal resonator plate, and seals a vibrating part of the crystal resonator plate. First and second shield electrodes are connected to a fixed potential (e.g. GND potential) in the internal space.

8. 发明申请

US20200382096A1 PIEZOELECTRIC RESONATOR DEVICE 审中-公开
公开(公告)号：US20200382096A1
公开(公告)日：2020-12-03
申请号：US16970629
申请日：2019-03-04
申请人： Daishinku Corporation
发明人： Hiroki FUJIWARA
IPC分类号： H03H9/02 , H03H9/05 , H03H9/10 , H03H9/19
摘要： A through hole formed in an AT-cut crystal plate includes an inclined surface (72) that extends from a peripheral area toward a penetrating part (71) in a center part of the through hole. The inclined surface (72) includes: a first crystal surface S1 that extends from the penetrating part (71) toward the peripheral area of the through hole in a −Z′ and a +X directions; a second crystal surface S2 that extends from the penetrating part (71) toward the peripheral area of the through hole in the −Z′ and the +X directions and that contacts with the first crystal surface S1 in the +Z′ and the +X directions of the first crystal surface S1; and a third crystal surface S3 that contacts with the second crystal surface S2 in the +X direction of the second crystal surface S2 and that contacts with the main surface of the AT-cut crystal plate. A compensation surface Sc is formed between the main surface of the AT-cut crystal plate and the three crystal surfaces Si to S3 to prevent first and second ridge lines L1 and L2 from reaching the main surface of the AT-cut crystal plate.

9. 发明授权

US10600953B2 Piezoelectric resonator device 有权
公开(公告)号：US10600953B2
公开(公告)日：2020-03-24
申请号：US15765498
申请日：2016-10-31
申请人： Daishinku Corporation
发明人： Takuya Kojo
IPC分类号： H01L41/047 , H03H9/05 , H01L41/18 , H01L23/02 , H01L23/04 , H03H9/13 , H03H9/10 , H01L41/053 , H03B5/32
摘要： A crystal resonator (101) includes: a crystal resonator plate (2); a first sealing member (3); a second sealing member (4); and an internal space (13) hermetically sealing a vibrating part (22) of the crystal resonator plate (2). The crystal resonator plate (2) includes: the vibrating part (22); an external frame part (23) surrounding an outer periphery of the vibrating part (22); and a connecting part (24) connecting the vibrating part (22) to the external frame part (23). A first extraction electrode (223) drawn from a first excitation electrode (221) is formed on a first main surface of the connecting part (24) while a second extraction electrode (224) drawn from a second excitation electrode (222) is formed on a second main surface thereof. A wiring pattern (33) connected to the first extraction electrode (223) is formed on a second main surface (312) of the first sealing member (3). At least part of the wiring pattern (33) is disposed to be superimposed to a space between the vibrating part (22) and the external frame part (23) in plan view.

10. 发明申请

US20190312189A1 PIEZOELECTRIC RESONATOR DEVICE AND SYSTEM-IN-PACKAGE MODULE INCLUDING THE SAME 审中-公开
公开(公告)号：US20190312189A1
公开(公告)日：2019-10-10
申请号：US16339714
申请日：2017-11-21
申请人： Daishinku Corporation
发明人： Takuya KOJO
IPC分类号： H01L41/047 , H01L41/053 , H01L41/08 , H01L41/311 , H03H9/17
摘要： A crystal oscillator (101) includes: a piezoelectric resonator plate (2) on which a first excitation electrode and a second excitation electrode are formed; a first sealing member (3) covering the first excitation electrode of the piezoelectric resonator plate (2); a second sealing member (4) covering the second excitation electrode of the piezoelectric resonator plate (2); and an internal space (13) formed by bonding the first sealing member (3) to the piezoelectric resonator plate (2) and by bonding the second sealing member (4) to the piezoelectric resonator plate (2), so as to hermetically seal a vibrating part including the first excitation electrode and the second excitation electrode of the piezoelectric resonator plate (2). An electrode pattern (371) including a mounting pad for wire bonding is formed on an outer surface (first main surface (311)) of the first sealing member (3).

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