Abstract: The electronic component includes at least one resonator element arranged in a housing of a case. The case includes a main part with a base and at least one lateral wall of annular shape, and a cover fixed onto the main part to hermetically seal the housing of the case. One portion of the cover is transparent to a determined wavelength of a light beam to allow the resonator element to be optically adjusted once the case is sealed. The cover is fixed onto a rim of the lateral wall of the main part, which is preferably made of a ceramic material, such that one part of the rim preferably surrounds the entire lateral surface of the cover to ensure protection of the electronic component against lateral shocks.

Abstract: The invention concerns an electronic watch comprising an electric motor (5) for driving analogue display means (6), and a time base (1, 2) comprising an oscillator circuit (2) and a resonator (1), both mounted in the same case (9), characterized in that said case further comprises a control circuit (4) for said electric motor.

Abstract: The invention concerns an assembly comprising a piezoelectric resonator (14) and a case (10), the case including a base part (11), on which the resonator is mounted, a wall (12) extending from said base part so as to surround at least partially said resonator, and a cover fixed to said wall in such a way as to close said case. The base part includes a main portion (17) and at least two conductive vias (16a, 16b). The conductive vias electrically connect The piezoelectric resonator to an outside circuit through the base part, and each of the conductive vias is surrounded by a insulating lining (18) so as to insulate the vias from the main portion (17). The main portion (17) of the base part (11) is divided into two parts by an insulating partition (21) in such a way that the two conductive vias are on different sides of the partition.

Abstract: The invention concerns an assembly comprising a piezoelectric resonator (14) and a case (10), the case including a base part (11), on which the resonator is mounted, a wall (12) extending from said base part so as to surround at least partially said resonator, and a cover fixed to said wall in such a way as to close said case. The base part includes a main portion (17) and at least two conductive vias (16a, 16b). The conductive vias electrically connect The piezoelectric resonator to an outside circuit through the base part, and each of the conductive vias is surrounded by a insulating lining (18) so as to insulate the vias from the main portion (17). The main portion (17) of the base part (11) is divided into two parts by an insulating partition (21) in such a way that the two conductive vias are on different sides of the partition.

Abstract: The tuning fork resonator (1) includes a base (4) from which first and second parallel vibrating arms (2, 3) extend, carrying a set of excitation electrodes (5, 6) for vibrating the arms at a fundamental frequency. Grooves (7, 8) are formed on at least one of the top or bottom surfaces of each of said arms. The vibrating arms have a generally tapered shape, and are extended by an enlarged flipper shaped portion (9, 10) which forms the free end of each arm. The groove (7, 8) is extended in the direction of the free end of an arm to beyond the start of the flipper (9, 10) so as to increase said first motional capacitance of the resonator for the fundamental frequency, to decrease said second motional capacitance of the resonator for the partial frequency and to ensure better distribution of mechanical stress along the vibrating arms and to increase shock resistance.

Abstract: The packaged piezoelectric resonator comprises a case (170; 270) with a lid (140; 240) and a piezoelectric resonator element (110) housed in said case, The piezoelectric resonator element includes a planar tuning-fork-shaped part with two parallel vibrating arms (112,114), and an additional attachment arm (118) intended for fixing the resonator element (110) to the bottom (172) of the case (170). The inside surface of the lid (140, 240) is stepped in such a way as to form a first portion (142) where the lid has a first thickness and a second portion (144) where the lid has a second thickness substantially greater than the first thickness, the first portion (142) extending at least over distal end portions (166, 168) of the vibrating arms (112, 114), and the second portion (144) extending at least over a part of the attachment arm (118).

Abstract: The tuning fork piezoelectric resonator (1) according to the invention comprises a base part (4) from which protrudes first and second parallel vibrating arms (2, 3) carrying a set of excitation electrodes (5, 6) to make them vibrate, the set of excitation electrodes being formed by conductive deposits and comprising central electrodes (6a, 6b) on opposite main surfaces (9a, 9b) and lateral electrodes (5a, 5b) covering lateral surfaces (10a, 10b) of each vibrating arm, the central electrodes of the first arm and the lateral electrodes of the second arm being connected to a first pole of an excitation source and the lateral electrodes of the first arm and the central electrodes of the second arm being connected to a second pole of the excitation source, wherein on each vibrating arm, the conductive deposits forming the central electrodes and lateral electrodes are made for the ones with an oxidizable metal and for the others with an unoxidizable metal or conversely.

Abstract: The tuning fork resonator (1) includes a base (4) from which first and second parallel vibrating arms (2, 3) extend, carrying a set of excitation electrodes (5, 6) for vibrating the arms at a fundamental frequency. Grooves (7, 8) are formed on at least one of the top or bottom surfaces of each of said arms. The vibrating arms have a generally tapered shape, and are extended by an enlarged flipper shaped portion (9, 10) which forms the free end of each arm. The groove (7, 8) is extended in the direction of the free end of an arm to beyond the start of the flipper (9, 10) so as to increase said first motional capacitance of the resonator for the fundamental frequency, to decrease said second motional capacitance of the resonator for the partial frequency and to ensure better distribution of mechanical stress along the vibrating arms and to increase shock resistance.

Abstract: The invention concerns a package comprising a case (10) for receiving a piezoelectric resonator (11), including a main part (12) with a bottom (13) and sides (14), in which the resonator shall be mounted and a cover (26) fixed to the main part closing the case, wherein the main part and the cover are both made of silicon.

Abstract: The electronic component includes at least one resonator element arranged in a housing of a case. The case includes a main part with a base and at least one lateral wall of annular shape, and a cover fixed onto the main part to hermetically seal the housing of the case. One portion of the cover is transparent to a determined wavelength of a light beam to allow the resonator element to be optically adjusted once the case is sealed. The cover is fixed onto a rim of the lateral wall of the main part, which is preferably made of a ceramic material, such that one part of the rim preferably surrounds the entire lateral surface of the cover to ensure protection of the electronic component against lateral shocks.

Abstract: A transducer for measuring an angular velocity formed by a single piezoelectric tuning fork (21) that rotates at the angular velocity. The tuning fork has a detection leg (24) which has a cross-shaped section including two top lateral faces (33, 34) and two bottom lateral faces (37, 38) separated by protruding parts (41, 42) projecting with respect to the faces. The detection leg has detecting electrodes which are arranged such that the electrical field between electrodes is substantially rectilinear through the detection leg.

Abstract: The tuning fork piezoelectric resonator (1) according to the invention comprises a base part (4) from which protrudes first and second parallel vibrating arms (2, 3) carrying a set of excitation electrodes (5, 6) to make them vibrate, the set of excitation electrodes being formed by conductive deposits and comprising central electrodes (6a, 6b) on opposite main surfaces (9a, 9b) and lateral electrodes (5a, 5b) covering lateral surfaces (10a, 10b) of each vibrating arm, the central electrodes of the first arm and the lateral electrodes of the second arm being connected to a first pole of an excitation source and the lateral electrodes of the first arm and the central electrodes of the second arm being connected to a second pole of the excitation source, wherein on each vibrating arm, the conductive deposits forming the central electrodes and lateral electrodes are made for the ones with an oxidizable metal and for the others with an unoxidizable metal or conversely.

Abstract: The invention concerns a piezoelectric resonator (10), intended to be packaged in a case, including a base (12) formed of a first fixing zone (121), a second central mechanical uncoupling zone (122) and a third zone (123) opposite to the first fixing zone. At least two vibrating arms (13a, 13b) extend from said third zone, on each of which at least one groove (141a-144a, 141b-144b) is formed on at least one of the top or bottom faces of the arms. The resonator is characterised in that the base is provided with a hole (15) through the second central mechanical uncoupling zone.

Abstract: A transducer for measuring an angular velocity formed by a single piezoelectric tuning fork (21) that rotates at said angular velocity, including first (23) and second (24) vibrating legs extending from a base (22), excitation electrodes (25a, 25b, 26a, 26b) arranged on the excitation leg (23), detection electrodes (27a, 27b, 28a, 28b), arranged on the detection leg (24), characterized in that the detection leg includes at least one first groove (33, 34) on the top face and at least one second groove (35, 36) on the bottom face, and in that the detection electrodes include first and second detection electrodes arranged facing each other, the first (27a) respectively the second detection electrode (28a) being arranged on one lateral flank of the groove (33) respectively of the groove (34) such that the electrical field between the first and second detection electrodes is substantially rectilinear through the detection leg, and third and fourth detection electrodes arranged facing each other, the third (27b) re

Abstract: The piezoelectric resonator according to the invention is to be mounted in a case and includes a tuning fork shaped part with two parallel vibrating arms, connected to each other by a linking part, from which protrude a central arm located between both vibrating arms of the tuning fork shaped part. The vibrating arms carry electrodes to make them vibrate, these electrodes being connected to connection elements carried by the central arm, the connection elements being electrically connected and fixed to the case, wherein at least one connection element comprises an opening through the central arm for positioning the resonator into the case.

Abstract: The piezoelectric resonator according to the invention includes a tuning fork shaped part with two parallel vibrating arms, connected to each other by a linking part, from which protrude a central arm located between both vibrating arms of the tuning fork shaped part, the vibrating arms carrying first electrodes to make them vibrate, these electrodes being connected to connection elements carried by the central arm, wherein a slot has been cut within the linking part opposite to the central arm and wherein second electrodes have been arranged along said slot.

Abstract: The invention concerns an assembly comprising a piezoelectric resonator and a case, said case including a main part with a bottom and sides, in which said resonator is mounted and a cover fixed to said main part, said resonator including a tuning fork shaped part with two parallel vibrating arms connected to each other by a linking part, and a central arm protruding from said linking part and located between both vibrating arms carrying at least two electrodes to make them vibrate, these two electrodes being connected respectively to at least first and second connection pads located on a back face of said central arm oriented toward the bottom of the case, said case further comprising at least one support secured to its bottom on which said central arm of the resonator is fixed by means of at least first and second connection elements located on said support and electrically connected respectively to said first and second connection pads by a conductive adhesive, wherein guiding means are provided at least wi

Abstract: The piezoelectric resonator according to the invention includes a tuning fork shaped part with two parallel vibrating arms, connected to each other by a linking part, from which protrude a central arm located between both vibrating arms of the tuning fork shaped part, wherein at least one groove is formed on at least one of a front side and a rear side of each vibrating arm.

Abstract: The invention concerns a transducer for measuring an angular velocity formed by a single piezoelectric tuning fork (21) that rotates at said angular velocity, including first (23) and second (24) vibrating legs extending from a base (22), excitation means (25a, 25b, 26a, 26b) arranged on the excitation leg (23), detection means (27a, 27b, 28a, 28b), arranged on the detection leg (24), characterized in that the detection leg includes at least one first groove (33, 34) on the top face and at least one second groove (35, 36) on the bottom face, and in that the detection means include first and second detection electrodes arranged facing each other, the first (27a) respectively the second detection electrode (28a) being arranged on one lateral flank of the groove (33) respectively of the groove (34) such that the electrical field between the first and second detection electrodes is substantially rectilinear through the detection leg, and third and fourth detection electrodes arranged facing each other, the third

Abstract: The invention concerns a piezoelectric resonator (10), intended to be packaged in a case, including a base (12) formed of a first fixing zone (121), a second central mechanical uncoupling zone (122) and a third zone (123) opposite to the first fixing zone. At least two vibrating arms (13a, 13b) extend from said third zone, on each of which at least one groove (141a-144a, 141b-144b) is formed on at least one of the top or bottom faces of the arms. The resonator is characterised in that the base is provided with a hole (15) through the second central mechanical uncoupling zone.