Patent application number | Description | Published |
20080252178 | CONTOUR RESONATOR - A contour resonator at least includes a first vibrating substrate and a second vibrating substrate having main surfaces that face each other and are bonded. The contour resonator includes a first excitation electrode provided on a front main surface of the first vibrating substrate, a second excitation electrode provided on a back main surface of the second vibrating substrate, and a common intermediate excitation electrode provided at an interface between the first vibrating substrate and the second vibrating substrate. The first excitation electrode and the second excitation electrode are electrically connected to constitute a first terminal. The intermediate excitation electrode constitutes a second terminal. The first vibrating substrate and the second vibrating substrate perform a contour vibration in accordance with an excitation signal applied between the first terminal and the second terminal. | 10-16-2008 |
20100001621 | CONTOUR RESONATOR - A contour resonator reducing fluctuation of resonance frequency due to variety of a film thickness of an excitation electrode is provided. A counter resonator includes a quartz substrate and excitation electrodes respectively formed on front and back surfaces of the quartz substrate. There is a range where a frequency sensitivity with respect to an electrode film thickness is smaller than that in related art when a ratio Fe/Fb between a contour vibration frequency Fe of the excitation electrodes and a contour vibration frequency Fb of the substrate is larger than 0.69. That is, fluctuation of the contour vibration frequency with respect to variety of the electrode film thickness can be made small substantially. | 01-07-2010 |
20100096951 | CONTOUR RESONATOR AND METHOD FOR ADJUSTING CONTOUR RESONATOR - A contour resonator is provided with a vibrating body formed from a flat plate in a square shape, excitation electrodes formed on both front and back surfaces of the vibrating body and regulating a resonance frequency, and temperature characteristic adjustment films formed on surfaces of the excitation electrodes and adjusting a temperature characteristic. | 04-22-2010 |
20100164331 | FLEXURAL VIBRATION ELEMENT AND ELECTRONIC COMPONENT - A flexural vibration element includes: a plurality of vibrating arms provided in parallel with each other; a connecting part connecting the vibrating arms; and one central supporting arm extending between the vibrating arms from the connecting part in parallel with the vibrating arms at equal distance from the arms. In the flexural vibration element, the connecting part has a groove formed on each of front and rear surfaces thereof, and the groove is provided in an area of the connecting part in which compressive stress and tensile stress due to flexural vibration of the vibrating arms alternately occur at a vibrating arm side and an opposite side of the vibrating arm side, in a width direction of the vibrating arms. | 07-01-2010 |
20100171397 | FLEXURAL VIBRATION ELEMENT AND ELECTRONIC COMPONENT - A flexural vibration element includes: a vibration element body composed of a plurality of vibrating arms provided in parallel, a connecting part connecting the vibrating arms, and one central supporting arm extending between the vibrating arms from the connecting part in parallel with the vibrating arms at equal distance from the arms; and a frame body disposed outside the vibration element body. In the flexural vibration element, the vibration element body is supported by the frame body at an end part, which is opposite to the connecting part, of the central supporting arm. | 07-08-2010 |
20100207486 | VIBRATING ELEMENT AND VIBRATOR - A vibrating element includes: a vibrating body having frequency temperature dependency; and a temperature characteristic correcting part provided on a surface of the vibrating body. The temperature characteristic correcting part has a temperature characteristic of at least one of a Young's modulus and a thermal expansion coefficient and is expressed by a temperature characteristic curve which has at least one of an inflection point and an extremal value. In the vibrating element, a temperature of at least one of the inflection point and the extremal value is within an operating temperature range of the vibrating body. | 08-19-2010 |
20100219898 | RESONATOR ELEMENT AND OSCILLATOR - A resonator element includes: a resonating body having a first region and a second region, the first region receiving a compression stress or an extension stress by a vibration, the second region receiving an extension stress responding to the compression stress in the first region, or a compression stress responding to the extension stress of the first region; and at least one film layer, on a surface of the resonating body between the first and the second regions, having thermal conductivity higher than thermal conductivity of the resonating body. In the element, the film layer includes a recessed section in which at least one film layer is removed between the first and the second regions. | 09-02-2010 |
20100244989 | FLEXURAL VIBRATION PIECE AND OSCILLATOR USING THE SAME - A flexural vibration piece includes: a flexural vibrator that has a first region on which a compressive stress or a tensile stress acts due to vibration and a second region having a relationship in which a tensile stress acts thereon when a compressive stress acts on the first region and a compressive stress acts thereon when a tensile stress acts on the first region, and performs flexural vibration in a first plane; and a heat conduction path, between the first region and the second region, that is formed of a material having a thermal conductivity higher than that of the flexural vibrator and thermally connects between the first region and the second region, wherein when m is the number of heat conduction paths, ρ | 09-30-2010 |
20110084776 | VIBRATING REED, VIBRATOR, OSCILLATOR, AND ELECTRONIC DEVICE - A vibrating reed includes: a base; and a vibrating arm which is extended from one end portion of the base, the vibrating arm having an arm portion which is disposed on the base side, a weight portion which is disposed on a tip side of the arm portion and has a larger width than the arm portion, main surfaces which are respectively disposed on front and back sides of the vibrating arm, side surfaces each of which extends in a longitudinal direction of the vibrating arm to connect the main surfaces on the front and back sides and which are formed so as to face each other, a first groove portion which is a bottomed groove formed at least one of the main surfaces along the longitudinal direction of the vibrating arm, a first excitation electrode which is formed on groove side surfaces each connecting a bottom of the first groove portion with the one main surface, a second excitation electrode which is formed on the both side surfaces, and a projection-in-groove which is disposed on the tip side of a bisector bisecting the vibrating arm in the longitudinal direction and is formed so as to be along the groove side surface with a part of the first groove portion interposed between the projection-in-groove and the groove side surface. | 04-14-2011 |
20110187470 | VIBRATING MEMBER, VIBRATING DEVICE, AND ELECTRONIC APPARATUS - A vibrating member includes a base portion, a plurality of vibrating arms which extend from one end portion of the base portion, are provided in parallel in a first direction, and extend in a second direction perpendicular to the first direction, a linking portion which is provided between the base end portions of two adjacent vibrating arms and extends from the other end portion of the base portion, and a support portion which is connected to the base portion through the linking portion. | 08-04-2011 |
20120007684 | FLEXURAL RESONATOR ELEMENT, RESONATOR, OSCILLATOR, AND ELECTRONIC DEVICE - A crystal resonator element include a pair of resonating arms extending from a base, the resonating arms includes a groove, a slope portion is formed in a connection portion of the resonating arms to the base so that a distance between the groove and the outer edge of each of the resonating arms increases as it approaches the base from the resonating arms, and a non-electrode region which extends over a range of areas from a connection portion connected to a first side surface formed along the longitudinal direction of the groove and a connection portion connected to a second side surface facing the first side surface with a bottom portion disposed there between and in which excitation electrodes are not formed is provided in the groove in at least a part of the bottom portion positioned in the slope portion. | 01-12-2012 |
20120007685 | RESONATOR ELEMENT, RESONATOR, AND OSCILLATOR - A resonator element includes: at least one resonating arm extending, wherein the resonating arm has a mechanical resonance frequency which is higher than a thermal relaxation frequency thereof, the resonating arm has a groove portion, the groove portion includes a bottom portion, a first side surface that extends along the longitudinal direction of the resonating arm and comes into contact with the opened principal surface and the bottom portion, and a second side surface that faces the first side surface with the bottom portion disposed therebetween and comes into contact with the opened principal surface and the bottom portion, and the groove portion has a non-electrode region which extends from a part of the first side surface close to the bottom portion to a part of the second side surface close to the bottom portion and in which no electrode is provided. | 01-12-2012 |
20120038251 | FLEXURAL VIBRATION ELEMENT AND ELECTRONIC COMPONENT - A flexural vibration element includes: a plurality of vibrating arms provided in parallel with each other; a connecting part connecting the vibrating arms; and one central supporting arm extending between the vibrating arms from the connecting part in parallel with the vibrating arms at equal distance from the arms. In the flexural vibration element, the connecting part has a groove formed on each of front and rear surfaces thereof, and the groove is provided in an area of the connecting part in which compressive stress and tensile stress due to flexural vibration of the vibrating arms alternately occur at a vibrating arm side and an opposite side of the vibrating arm side, in a width direction of the vibrating arms. | 02-16-2012 |
20120187803 | FLEXURAL VIBRATION ELEMENT AND ELECTRONIC COMPONENT - A flexural vibration element according to a first aspect of the invention includes: a vibration element body composed of a plurality of vibrating arms provided in parallel, a connecting part connecting the vibrating arms, and one central supporting arm extending between the vibrating arras from the connecting part in parallel with the vibrating arms at equal distance from the arms; and a frame body disposed outside the vibration element body. | 07-26-2012 |
20130038171 | VIBRATING MEMBER, VIBRATING DEVICE, AND ELECTRONIC APPARATUS - A vibrating member includes a base portion, a plurality of vibrating arms which extend from one end portion of the base portion, are provided in parallel in a first direction, and extend in a second direction perpendicular to the first direction, a linking portion which is provided between the base end portions of two adjacent vibrating arms and extends from the other end portion of the base portion, and a support portion which is connected to the base portion through the linking portion. | 02-14-2013 |
20130241364 | FLEXURAL VIBRATION ELEMENT AND ELECTRONIC COMPONENT - A flexural vibration element according to a first aspect of the invention includes: a vibration element body composed of a plurality of vibrating arms provided in parallel, a connecting part connecting the vibrating arms, and one central supporting arms extending between the vibrating arms from the connecting pert in parallel with the vibrating arms at equal distance from the arms and a frame body disposed outside the vibration element body. | 09-19-2013 |
20130270970 | FLEXURAL RESONATOR ELEMENT, RESONATOR, OSCILLATOR, AND ELECTRONIC DEVICE - A crystal resonator element include a pair of resonating arms extending from a base, the resonating arms includes a groove, a slope portion is formed in a connection portion of the resonating arms to the base so that a distance between the groove and the outer edge of each of the resonating arms increases as it approaches the base from the resonating arms, and a non-electrode region which extends over a range of areas from a connection portion connected to a first side surface formed along the longitudinal direction of the groove and a connection portion connected to a second side surface facing the first side surface with a bottom portion disposed there between and in which excitation electrodes are not formed is provided in the groove in at least a part of the bottom portion positioned in the slope portion. | 10-17-2013 |
20140070901 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOBILE OBJECT - A resonator element includes a base section, a pair of vibrating arms projecting toward the same side from the base section, and disposed side by side in a predetermined direction, a support arm projecting from the base section toward the same side as the pair of vibrating arms, disposed between the pair of vibrating arms, and having a recessed portion disposed on one principal surface, and a first electrically-conductive pad and a second electrically-conductive pad disposed side by side across the recessed portion. | 03-13-2014 |
20140118079 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator element includes a base portion which includes one end portion and the other end portion opposing the one end portion in a plan view, and a pair of vibrating arms which extend along a first direction from the one end portion of the base portion. The base portion includes a reduced width portion in which a width is gradually decreased along a second direction intersecting the first direction toward a direction side which is separated from the base portion along the first direction, in at least one of the one end portion and the other end portion, and a fixing portion is provided between the one end portion and the other end portion of the base portion. | 05-01-2014 |
20140167870 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - A quartz crystal resonator element includes: a base portion and a pair of vibrating arms which extend from a first end portion of the base portion along a Y-axis direction. The base portion includes a second end portion provided on the opposite side to a first end portion in the Y-axis direction. The base portion is provided with a protrusion in at least one of a third end portion and a fourth end portion which respectively connect both ends of the first end portion and both ends of the second end portion. | 06-19-2014 |
20140253254 | RESONATOR ELEMENT, RESONATOR, AND OSCILLATOR - A resonator element includes: at least one resonating arm extending, wherein the resonating arm has a mechanical resonance frequency which is higher than a thermal relaxation frequency thereof, the resonating arm has a groove portion, the groove portion includes a bottom portion, a first side surface that extends along the longitudinal direction of the resonating arm and comes into contact with the opened principal surface and the bottom portion, and a second side surface that faces the first side surface with the bottom portion disposed therebetween and comes into contact with the opened principal surface and the bottom portion, and the groove portion has a non-electrode region which extends from a part of the first side surface close to the bottom portion to a part of the second side surface close to the bottom portion and in which no electrode is provided. | 09-11-2014 |
20140265736 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator element includes a base portion and a pair of vibrating arms that are provided integrally with the base portion, are aligned in an X-axis direction, and extend in a Y-axis direction from the base portion. Each of the vibrating arms includes an arm portion and a wide hammerhead that is located on the free end side of the arm portion and has a greater length in the X-axis direction than the arm portion. Assuming that the length of the vibrating arm in the Y-axis direction is L and the length of the hammerhead in the Y-axis direction is H, the relationship of 1.2%09-18-2014 | |
20140292431 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, SENSOR, AND MOVING OBJECT - A resonator element includes a quartz crystal substrate having a base, a pair of vibration arms extending from the base, and a support arm located between the vibration arms and extending from the base in the direction in which the vibration arms extend. Each of the vibration arms has an arm portion and a hammer head provided at the front end of the arm portion. The arm portion has a pair of principal surfaces and a groove that has a bottom and opens through each of the principal surfaces. In the invention, the width of each of bank-shaped portions of each of the principal surfaces that are disposed side by side on opposite sides of the groove along the width direction of the vibration arm perpendicular to the longitudinal direction thereof is set at 6 μm or smaller. | 10-02-2014 |
20140292432 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - A resonator includes: a resonator element including a base portion, and a pair of vibrating arms which are integrally provided with the base portion, extend in a first direction from the base portion, and are arranged in a second direction orthogonal to the first direction; a base which supports the resonator element; and a fixing portion which fixes the resonator element with respect to the base, and the resonator element is configured so as to satisfy conditions shown by the following formula (1). | 10-02-2014 |
20140292433 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator element includes a base portion and a pair of vibrating arms that are provided integrally with the base portion and extend in a Y-axis direction from a distal end of the base portion. When the lengths of the vibrating arms are set to L and the lengths of hammerheads are set to H, a relation of 0.183≦H/L≦0.597 is satisfied. When a resonance frequency of a basic vibration mode is set to ω0 and a resonance frequency of a vibration mode different from the basic vibration mode is set to ω1, a relation of (|ω0−ω1|)/ω0≧0.124 is satisfied. | 10-02-2014 |
20140292435 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator includes a resonator element including a base section, vibrating arms extending from the base section, and a support arm disposed between the vibrating arms, a package adapted to support the resonator element, and electrically-conductive adhesives adapted to fix the support arm to the package, the support arm includes a tip portion and a width-decreasing portion having a width smaller than the width of the tip portion, and the electrically-conductive adhesive has contact with at least a part of the width-decreasing portion in a planar view. | 10-02-2014 |
20140368287 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - A resonator element includes a base portion, a pair of vibrating arms that are integrally provided with the base portion and extend in a Y-axis direction from a distal end of the base portion, and a supporting arm that is integrally provided with the base portion, is positioned between the vibrating arms, and extends in the Y-axis direction from the distal end of the base portion. A first fixation portion is provided in one principal surface of the base portion, and a second fixation portion is provided in one principal surface of the supporting arm. The resonator element is fixed to an object through fixation members, by the first fixation portion and the second fixation portion. | 12-18-2014 |
20140368288 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - A resonator element includes a base portion, a pair of vibrating arms that extend in a first direction from the base portion and are arranged along a second direction perpendicular to the first direction, and a supporting arm that extends in the first direction from the base portion and is disposed between the pair of vibrating arms when seen in a plan view. | 12-18-2014 |
20140375176 | RESONATOR ELEMENT, RESONATOR, ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT - A quartz crystal resonator element includes a first electrode pad and a second electrode pad disposed on a lower surface of a support arm, and cut sections disposed in both principal surfaces (upper and lower surfaces) of the support arm between the first and second electrode pads so as to overlap each other, and the cut sections extend so that the support arm is cut from the side surface in the +X-axis direction of the support arm to the −X-axis direction, and are provided with first surfaces roughly perpendicular to the X axis and first and second tilted surfaces extending in the +X-axis direction. | 12-25-2014 |
20140375177 | RESONATOR ELEMENT, RESONATOR, ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator element includes: a base portion including a first end surface that faces a first direction and a second end surface that faces a direction opposite to the first direction, a first vibrating arm that is provided integrally with the base portion and is connected to the first end surface; and a second vibrating arm that is provided integrally with the base portion along the first vibrating arm and is connected to the first end surface. When the shortest distance between the first end surface and the second end surface is Wb and an effective width between the shortest distance Wb and the base portion is We, 0.81≦Wb/We≦1.70 is satisfied. | 12-25-2014 |
20140375178 | RESONATOR ELEMENT, RESONATOR DEVICE, ELECTRONIC APPARATUS, MOVING OBJECT, AND METHOD OF MANUFACTURING RESONATOR ELEMENT - A resonator element has a base part, vibrating arms having first principal surfaces and second principal surfaces in front-rear relationships with each other and extending from the base part, and side surfaces connected to the first principal surfaces and the second principal surfaces on ends of the vibrating arms, and the side surfaces are slopes having tilts with respect to perpendicular lines of the first principal surfaces or the second principal surfaces and provided from the first principal surfaces to the second principal surfaces, and crystal faces. | 12-25-2014 |
20150022061 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - In a resonator element, when a width of each of arm portions of vibrating arms along an X-axis direction is set to W1, a width of each of two portions with a groove interposed therebetween, along the X-axis direction, in a principal surface of the vibrating arm is set to W3, and 2×W3/W1 is set to η, the relation of 14.2%<η<100% is satisfied. | 01-22-2015 |
20150022276 | RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC DEVICE, AND MOVING OBJECT - A resonator element is provided. A base portion includes a first base portion, a second base portion, and a connecting portion. The base portion includes a width-decreasing portion that is provided at an end of the connecting portion on the first base portion side and that has a width along an X-axis direction which continuously decreases toward the second base portion. An outer edge of the width-decreasing portion and an outer edge of the connecting portion form a continuous line that does not include a corner portion, when seen in a plan view. When an angle between a tangent of a portion of the curved line on the first base portion side and a segment parallel to the X-axis direction is set to θ, a relation of 0°<θ<90° is satisfied. | 01-22-2015 |