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公开(公告)号：US12113502B2
公开(公告)日：2024-10-08
申请号：US17229065
申请日：2021-04-13
发明人： Masaya Kanno , Shigeru Shiraishi , Atsushi Matsuo
CPC分类号： H03H3/013 , H03H3/02 , H03H2003/022 , H03H2003/023 , H03H2003/027 , H03H9/02102 , H03H9/0547 , H03H9/1021 , H03H9/19
摘要： A method of manufacturing a quartz crystal element includes preparing a quartz crystal wafer having a predetermined cutting angle with respect to a crystal axis of a quartz crystal, forming a first resist film having a first tilted part on a first surface of the quartz crystal wafer and dry-etching the first resist film with the quartz crystal, forming a first tilted surface by dry-etching the quartz crystal wafer from the first surface side, forming a second resist film having a second tilted part on a second surface of the quartz crystal wafer and dry-etching the second resist film with the quartz crystal, and forming a second tilted surface tilted by dry-etching the quartz crystal wafer from the second surface side. The quartz crystal element provided with the first tilted surface and the second tilted surface, and having a cutting angle different from the predetermined cutting angle is formed.
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公开(公告)号：US12107561B2
公开(公告)日：2024-10-01
申请号：US17397650
申请日：2021-08-09
发明人： Shigeo Ojima
CPC分类号： H03H9/1035 , H03H3/02 , H03H9/19 , H03H2003/022
摘要： A method for manufacturing a vibrator that includes forming excitation electrodes, lead-out electrodes, and first sealing frames on the main surfaces of a crystal piece; forming second sealing frames on the main surfaces of a base part and a lid part; and sealing a crystal vibration element by bonding the first sealing frames to the second sealing frames. The first sealing frames each include a first Ti or Cr base layer 110, and a first Au surface layer. The first Ti or Cr base layers are thinner than the first Au surface layers. The second sealing frames each include a second Ni base layer, and a second AuSn surface layer. The second Ni base layers are thicker than the second AuSn surface layers. The sealing is carried out by alloying the first Au surface layers and the second AuSn surface layers to each other.
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公开(公告)号：US12101075B2
公开(公告)日：2024-09-24
申请号：US17238211
申请日：2021-04-23
CPC分类号： H03H9/02023 , H03H3/02 , H03H9/0509 , H03H9/1021 , H03H9/19 , H10N30/082 , H03H2003/022
摘要： A piezoelectric device includes a conductive adhesive, a container, and an AT-cut crystal element. The AT-cut crystal element has at least one side surface intersecting with a Z′-axis of the crystallographic axis of the crystal constituted of three surfaces. When a dimension of a straight-line portion along the Z′-axis of a second side opposed to the first side is expressed as W1 and a dimension along the Z′-axis of the AT-cut crystal element is expressed as W0, W1/W0 is 0.91 or greater, and the straight-line portion has both sides constituting corner portions in approximately right angles with sides along an X-axis of the crystal of the AT-cut crystal element. The side of the first side is at a −X-side in an X-axis of the crystallographic axis of the crystal and a side of the second side is at a +X-side in the X-axis.
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公开(公告)号：US20240250662A1
公开(公告)日：2024-07-25
申请号：US18420833
申请日：2024-01-24
发明人： Atsushi TANAKA
CPC分类号： H03H9/19 , H03B5/04 , H03H9/0557 , H03H9/1021
摘要： A vibrator device includes: a vibrator; and a circuit device disposed apart from the vibrator, in which the circuit device includes a drive circuit configured to drive the vibrator, a temperature sensor configured to generate a temperature signal corresponding to a detected temperature, a temperature compensation circuit configured to compensate for temperature characteristics of a drive state of the vibrator based on the temperature signal, a heat source circuit configured to operate in a first state or in a second state in which current consumption is different from current consumption in the first state, and a transient response compensation circuit configured to compensate for, when the first state and the second state of the heat source circuit are switched, a difference between a transient response of a temperature detected by the temperature sensor and a transient response of a temperature of the vibrator.
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公开(公告)号：US20240250660A1
公开(公告)日：2024-07-25
申请号：US18625528
申请日：2024-04-03
发明人： Go YAMASHITA
CPC分类号： H03H9/08 , H03H9/02102 , H03H9/0552 , H03H9/1021 , H03H9/19
摘要： A quartz crystal resonator includes a quartz crystal resonator element, a thermistor, and a package base having a first principal surface and a second principal surface having an opposed surface relationship with each other, the quartz crystal resonator element is mounted on the first principal surface side, the thermistor is housed in a recessed section of the second principal surface side of the package base, a plurality of electrode terminals connected to the quartz crystal resonator element or the thermistor is disposed on the second principal surface side of the package base, and a distance in a first direction perpendicular to the first principal surface from a mounting surface of the electrode terminals to the thermistor is equal to or longer than 0.05 mm.
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公开(公告)号：US12034433B2
公开(公告)日：2024-07-09
申请号：US17967927
申请日：2022-10-18
发明人： Tetsuya Otsuki , Tsugio Ide
IPC分类号： H03H9/215 , B81B3/00 , B81B7/00 , G01C19/56 , G01C19/5621 , H03B5/32 , H03H3/007 , H03H9/02 , H03H9/05 , H03H9/10 , H03H9/17 , H03H9/19 , H03L1/02 , H03L1/04
CPC分类号： H03H9/215 , B81B3/0072 , B81B7/0048 , G01C19/56 , G01C19/5621 , H03B5/32 , H03H3/0076 , H03H9/02023 , H03H9/02102 , H03H9/02157 , H03H9/0509 , H03H9/0542 , H03H9/0547 , H03H9/1021 , H03H9/177 , H03H9/19 , H03L1/028 , H03L1/04
摘要： A vibrator device includes a vibration element including a vibration portion and a fixed portion, a supporting member to which the fixed portion is attached to support the vibration element, and a first substrate to which the supporting member is attached, the supporting member includes a attaching portion attached to the first substrate, and A1≥A2 is satisfied in a case where an area of a rectangular region including the fixed portion is A1 and an area of a rectangular region including the attaching portion is A2 in a plan view seen from a thickness direction of the vibration element.
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公开(公告)号：US12034405B2
公开(公告)日：2024-07-09
申请号：US17562065
申请日：2021-12-27
发明人： Takehiro Yamamoto
CPC分类号： H03B28/00 , G06F1/022 , H03H9/19 , H03B2200/0034
摘要： A circuit device includes an oscillation circuit which is electrically coupled to a first node to electrically be coupled to one end of a resonator and a second node to electrically be coupled to another end of the resonator, and is configured to oscillate the resonator to generate an oscillation signal, and a waveform shaping circuit which is coupled to the first node, to which the oscillation signal is input from the first node, and which is configured to output a clock signal obtained by performing waveform shaping on the oscillation signal, and a duty adjustment circuit configured to supply the first node with a bias voltage which is variably adjusted based on adjustment data to thereby adjust a duty ratio of the clock signal.
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公开(公告)号：US12028042B2
公开(公告)日：2024-07-02
申请号：US17417778
申请日：2019-12-19
发明人： Satoru Ishino , Hiroki Yoshioka , Hiroki Fujiwara
CPC分类号： H03H9/1035 , H03B5/32 , H03H9/125 , H03H9/19 , H03H9/0523
摘要： In a piezoelectric resonator device according to one or more embodiments, an internal space for hermetically sealing a vibrating part including a first excitation electrode and a second excitation electrode of a crystal resonator plate is formed by bonding a first sealing member and a second sealing member respectively to the crystal resonator plate. A through hole is formed in the second sealing member. A through electrode is formed along an inner wall surface of the through hole to establish conduction between an electrode formed on a first main surface and an external electrode terminal formed on a second main surface. A corrosion resistance structure to solder is formed on the through electrode that establishes conduction between the electrode and the external electrode terminal with a conductive metal other than Au.
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公开(公告)号：US20240204748A1
公开(公告)日：2024-06-20
申请号：US18593985
申请日：2024-03-04
发明人： Lei Yang , Hang Yan , Haifeng Luo , ZHENLONG ZHANG
CPC分类号： H03H9/19 , H03H9/0547 , H03H9/13
摘要： A crystal oscillating wafer is a sheet in a symmetric shape. A symmetry axis of the crystal oscillating wafer has at least a first point and a second point. A distance between the first point and a first endpoint on the symmetry axis is less than a distance between the second point and the first endpoint. A width that is of the crystal oscillating wafer and that passes the first point in a first direction is greater than a width that is of the crystal oscillating wafer and that passes the second point in the first direction. The first direction is a direction perpendicular to the symmetry axis on a surface of the crystal oscillating wafer. The crystal oscillating wafer includes an oscillation region including a first concave region located on an upper surface and a second concave region located on a lower surface of the crystal oscillating wafer.
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公开(公告)号：US11979138B2
公开(公告)日：2024-05-07
申请号：US18177457
申请日：2023-03-02
发明人： Go Yamashita
CPC分类号： H03H9/08 , H03H9/02102 , H03H9/0552 , H03H9/1021 , H03H9/19
摘要： A quartz crystal resonator includes a quartz crystal resonator element, a thermistor, and a package base having a first principal surface and a second principal surface having an opposed surface relationship with each other, the quartz crystal resonator element is mounted on the first principal surface side, the thermistor is housed in a recessed section of the second principal surface side of the package base, a plurality of electrode terminals connected to the quartz crystal resonator element or the thermistor is disposed on the second principal surface side of the package base, and a distance in a first direction perpendicular to the first principal surface from a mounting surface of the electrode terminals to the thermistor is equal to or longer than 0.05 mm.
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