摘要:
A vibrator element includes a pair of first and second drive vibrating arms that extend in opposite directions from a base portion; a first weight that is spaced from a tip of at least one of the first and second drive vibrating arms toward the base portion and is provided in a first region of the at least one of the drive vibrating arms; and a second weight that is provided in a second region that is a region between a tip of the first weight and the tip of the at least one of the drive vibrating arms. When an area of the first region is represented as A1, a mass of the first weight is represented as B1, an area of the second region is represented as A2, and a mass of the second weight is represented as B2, B1/A1>B2/A2 is established.
摘要:
A gyro element as a resonator element includes a drive resonating arm as a drive portion that is driven by application of a voltage, and a detection resonating arm as a detection portion in which charge is generated in response to a Coriolis force generated in the drive resonating arm. An amount of charge detected in the detection resonating arm in a state where the Coriolis force is not generated is greater than 0% and equal to or less than 0.1% of an amount of charge generated in the drive resonating arm when driving the drive resonating arm.
摘要:
A vibrating reed includes a base part. A drive vibrating arm, a detection vibrating arm, and an adjustment vibrating arm extend from the base part. A first adjustment electrode and a second adjustment electrode are connected to the adjustment vibrating arm. The first adjustment electrode generates an electrical signal in first phase. The second adjustment electrode generates an electrical signal in second phase opposite to the first phase. The electrical signals of the adjustment electrodes are superimposed on the detection signal of the detection vibrating arm, and thereby, vibration leakage components are cancelled out. The adjustment vibrating arm is partially sandwiched between a first electrode piece and a second electrode piece, and the adjustment vibrating arm is partially sandwiched between a third electrode piece and a fourth electrode piece.
摘要:
A method of manufacturing a resonator element including a substrate having a thin-wall part and a thick-wall part, and an electrode part having an excitation electrode arranged in an excitation electrode placement area of the thin-wall part, a pad electrode arranged in a pad electrode placement area of the thick-wall part, and an extraction electrode which is configured to couple the excitation electrode and the pad electrode to each other, and which is arranged in an extraction electrode placement area of the substrate, includes a metal layer formation step of forming a metal layer on the substrate, a protective film formation step of forming a protective film in an area overlapping at least a part of the extraction electrode placement area in a plan view on the metal layer, and a metal layer etching step of etching the metal layer arranged in the excitation electrode placement area via the protective film to thereby reduce a wall thickness of the metal layer.
摘要:
A vibration device includes a quartz substrate including a first vibration section, a second vibration section, and a third vibration section, a pair of first excitation electrodes formed at two principal surfaces of the quartz substrate, a pair of second excitation electrodes so formed as to sandwich the second vibration section in the thickness direction of the quartz substrate, and a pair of third excitation electrodes so formed as to sandwich the third vibration section in the thickness direction of the quartz substrate. At least one of the pair of second excitation electrodes is formed at a first inclining surface that inclines with respect to the two principal surfaces. At least one of the pair of third excitation electrodes is formed at a second inclining surface that inclines with respect to the two principal surfaces. The second inclining surface inclines with respect to the first inclining surface.
摘要:
A vibrator device includes: a base including a semiconductor substrate having an integrated circuit disposed at a second surface; a vibration element electrically coupled to the integrated circuit; and a lid having an end surface of a side wall bonded to a first surface at a bonding portion. A first circuit of the integrated circuit includes a first circuit element disposed in a first region overlapping the bonding portion in a plan view. The first circuit element is a passive element or a transistor, and θ>90° is satisfied, θ being an angle formed by the first surface and an inner side surface of the side wall.
摘要:
A vibrator device includes: a base having an integrated circuit disposed at a second surface; a vibration element; and a lid having an end surface of a side wall bonded to a first surface of the base at a bonding portion. The integrated circuit includes a first circuit and a second circuit, the first circuit includes a plurality of first circuit elements disposed in a first region ARA, and the second circuit includes a second circuit element disposed in a second region ARB. At this time, the following relations are established.
摘要:
A vibrator device includes a vibrator element, and a support substrate configured to support the vibrator element. The vibrator element includes a drive arm provided with a drive signal electrode and a drive constant-potential electrode, and a detection arm provided with a detection signal electrode and a detection constant-potential electrode. The support substrate includes a base, and a drive signal interconnection electrically coupled to the drive signal electrode, a drive constant-potential interconnection electrically coupled to the drive constant-potential electrode, and a detection signal interconnection electrically coupled to the detection signal electrode all provided to the base, and the drive arm includes a first surface located at the support substrate side, and a second surface located at an opposite side to the first surface. Further, the drive constant-potential electrode is disposed on the first surface, and the drive signal electrode is disposed on the second surface.
摘要:
A gyro vibrating element includes a drive signal pattern including a drive signal electrode to which a drive signal is applied and a drive signal wire connected to the drive signal electrode, a first detection signal pattern including a first detection electrode that outputs a first detection signal and a first detection signal wire connected to the first detection electrode, the first detection signal pattern being capacitively coupled to the drive signal pattern, and a second detection signal pattern including a second detection electrode that outputs a second detection signal opposite in phase to the first detection signal and a second detection signal wire connected to the second detection electrode, the second detection signal pattern being capacitively coupled to the drive signal pattern. Any one of the first detection signal pattern, the second detection signal pattern, and the drive signal pattern includes an adjustment pattern for adjusting an area of the signal pattern.
摘要:
A vibrator includes: a vibration element that includes a pair of first excitation electrodes formed at the first vibration portion, a pair of second excitation electrodes formed at the second vibration portion, and a pair of third excitation electrodes formed at the third vibration portion, in which one second excitation electrode of the pair of second excitation electrodes is formed at a first inclined surface that is inclined with respect to two main surfaces, and one third excitation electrode of the pair of third excitation electrodes is formed at a second inclined surface that is inclined with respect to the two main surfaces and the first inclined surface; and a package that houses the vibration element. The vibration element includes a fixing portion to be fixed to the package. The fixing portion is provided between the first vibration portion and the second and third vibration portions.