Patent Publication Number: US-2022236058-A1

Title: Vibrator Device, Electronic Apparatus, And Vehicle

Description:
This application is a continuation of U.S. application Ser. No. 16/940,745 filed Jul. 28, 2020, which is based on, and claims priority from JP Application Serial Number 2019-138430, filed Jul. 29, 2019, the disclosures of which are hereby incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a vibrator device, an electronic device, and a vehicle. 
     2. Related Art 
     In JP-A-2017-26336, there is described a vibrator device which is used as an angular velocity sensor, and has a vibrator element supported above a TAB substrate with a plurality of inner leads. The vibrator element has a drive arm and a detection arm, wherein the drive arm is provided with a drive signal electrode and a drive constant-potential electrode, and performs a drive vibration in response to a drive signal applied to the drive signal electrode, and the detection arm is provided with a detection signal electrode and a detection constant-potential electrode, and performs a detection vibration in response to inertia to thereby output a detection signal from the detection signal electrode. Meanwhile, the plurality of inner leads includes an inner lead for the drive signal electrode electrically coupled to the drive signal electrode, an inner lead for the drive constant-potential electrode electrically coupled to the drive constant-potential electrode, an inner lead for the detection signal electrode electrically coupled to the detection signal electrode, and an inner lead for the detection constant-potential electrode electrically coupled to the detection constant-potential electrode. 
     However, in the vibrator device described above, the inner lead for the detection signal electrode is disposed close to the drive signal electrode, and further, a member for shielding against an electric field such as a shield member does not exist therebetween. Therefore, capacitive coupling easily occurs between the inner lead for the detection signal electrode and the drive signal electrode, and there is a problem that the drive signal to be applied to the drive signal electrode is mixed as a noise into the detection signal via the inner lead for the detection signal electrode to degrade the detection accuracy of the angular velocity. 
     SUMMARY 
     A vibrator device according to the present application example includes a vibrator element, and a support substrate which is disposed so as to be opposed to the vibrator element, provided with a first surface at the vibrator element side and a second surface at an opposite side to the first surface, and supports the vibrator element, wherein the vibrator element includes a drive arm which is provided with a drive signal electrode and a drive constant-potential electrode, and performs a drive vibration in response to a drive signal applied to the drive signal electrode, and a detection arm which is provided with a detection signal electrode and a detection constant-potential electrode, and performs a detection vibration in accordance with a physical quantity of a detection target to thereby output a detection signal from the detection signal electrode, the support substrate includes a base configured to support the vibrator element, a support configured to support the base, a plurality of beams configured to couple the base and the support to each other, a drive signal interconnection which is electrically coupled to the drive signal electrode, and is laid around the base and the support passing at least one of the beams, a drive constant-potential interconnection which is electrically coupled to the drive constant-potential electrode, and is laid around the base and the support passing at least one of the beams, a detection signal interconnection which is electrically coupled to the detection signal electrode, and is laid around the base and the support passing at least one of the beams, and a detection constant-potential interconnection which is electrically coupled to the detection constant-potential electrode, and is laid around the base and the support passing at least one of the beams, and in a predetermined beam included in the plurality of beams, at least one of the drive constant-potential interconnection and the detection constant-potential interconnection is disposed on the first surface, and the detection signal interconnection is disposed on the second surface. 
     In the vibrator device according to the present application example, the predetermined beam may have a pair of beam side surfaces configured to couple the first surface and the second surface to each other, and in the predetermined beam, one of the drive constant-potential interconnection and the detection constant-potential interconnection may be disposed on the first surface, each of the beam side surfaces, and the second surface. 
     In the vibrator device according to the present application example, the predetermined beam may have a portion opposed to the drive arm. 
     In the vibrator device according to the present application example, the drive arm may have a third surface at the support substrate side, a fourth surface at an opposite side to the third surface, and a pair of drive arm side surfaces configured to couple the third surface and the fourth surface to each other, the drive signal electrode may be disposed on the third surface and the fourth surface, and the drive constant-potential electrode may be disposed on each of the drive arm side surfaces. 
     In the vibrator device according to the present application example, the drive arm may have a third surface at the support substrate side, a fourth surface at an opposite side to the third surface, and a pair of drive arm side surfaces configured to couple the third surface and the fourth surface to each other, the drive constant-potential electrode may be disposed on the third surface and the fourth surface, and the drive signal electrode may be disposed on each of the drive arm side surfaces. 
     In the vibrator device according to the present application example, one of the drive constant-potential interconnection and the detection constant-potential interconnection may be disposed on the first surface of the support. 
     In the vibrator device according to the present application example, the support may have a frame-like shape surrounding the base. 
     In the vibrator device according to the present application example, defining three axes perpendicular to each other as an A axis, a B axis, and a C axis, and the vibrator element and the support substrate are opposed to each other in a direction along the C axis, the vibrator element may include an element base, a pair of the detection arms extending toward both sides along the B axis from the element base, a pair of coupling arms extending toward both sides along the A axis from the element base, a pair of the drive arms extending toward both sides along the B axis from a tip part of one of the coupling arms, and a pair of the drive arms extending toward both sides along the B axis from a tip part of the other of the coupling arms, and the element base may be fixed to the base via a bonding member. 
     The vibrator device according to the present application example may further include a circuit element electrically coupled to the vibrator element, wherein the support substrate may be located between the vibrator element and the circuit element. 
     An electronic apparatus according to the present application example includes the vibrator device described above, and a signal processing circuit configured to perform signal processing based on an output signal of the vibrator device. 
     A vehicle according to the present application example includes the vibrator device described above, and a signal processing circuit configured to perform signal processing based on an output signal of the vibrator device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a cross-sectional view showing a vibrator device according to a first embodiment. 
         FIG. 2  is a plan view showing the vibrator device shown in  FIG. 1 . 
         FIG. 3  is a plan view showing a vibrator element provided to the vibrator device shown in  FIG. 1 . 
         FIG. 4  is a cross-sectional view along the line A-A in  FIG. 3 . 
         FIG. 5  is a cross-sectional view along the line B-B in  FIG. 3 . 
         FIG. 6  is a schematic diagram for explaining drive of the vibrator element shown in  FIG. 3 . 
         FIG. 7  is a schematic diagram for explaining drive of the vibrator element shown in  FIG. 3 . 
         FIG. 8  is a perspective view of a support substrate viewed from an upper side. 
         FIG. 9  is a perspective view of the support substrate viewed from a lower side. 
         FIG. 10  is a perspective view of a support substrate provided to a vibrator device according to a second embodiment viewed from an upper side. 
         FIG. 11  is a perspective view of the support substrate shown in  FIG. 10  viewed from a lower side. 
         FIG. 12  is a perspective view of a support substrate provided to a vibrator device according to a third embodiment viewed from an upper side. 
         FIG. 13  is a perspective view of the support substrate shown in  FIG. 12  viewed from a lower side. 
         FIG. 14  is a perspective view of a support substrate provided to a vibrator device according to a fourth embodiment viewed from an upper side. 
         FIG. 15  is a plan view showing a vibrator device according to a fifth embodiment. 
         FIG. 16  is a cross-sectional view showing a vibrator device according to a sixth embodiment. 
         FIG. 17  is a cross-sectional view showing a support substrate provided to a vibrator device according to a seventh embodiment. 
         FIG. 18  is a perspective view showing a personal computer according to an eighth embodiment. 
         FIG. 19  is a perspective view showing a cellular phone according to a ninth embodiment. 
         FIG. 20  is a perspective view showing a digital still camera according to a tenth embodiment. 
         FIG. 21  is a perspective view showing a car according to an eleventh embodiment. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     A vibrator device, an electronic apparatus, and a vehicle according to the present application example will hereinafter be described in detail based on some embodiments shown in the accompanying drawings. 
     First Embodiment 
       FIG. 1  is a cross-sectional view showing a vibrator device according to a first embodiment.  FIG. 2  is a plan view showing the vibrator device shown in  FIG. 1 .  FIG. 3  is a plan view showing a vibrator element provided to the vibrator device shown in  FIG. 1 .  FIG. 4  is a cross-sectional view along the line A-A in  FIG. 3 .  FIG. 5  is a cross-sectional view along the line B-B in  FIG. 3 .  FIG. 6  and  FIG. 7  are each a schematic diagram for explaining drive of the vibrator element shown in  FIG. 3 .  FIG. 8  is a perspective view of a support substrate viewed from an upper side.  FIG. 9  is a perspective view of the support substrate viewed from a lower side. 
     It should be noted that in  FIG. 1  through  FIG. 9 , there are illustrated an A axis, a B axis, and a C axis as three axes perpendicular to each other. Further, hereinafter, the tip side of the arrow of each of the axes is also referred to as a “positive side,” and the opposite side is also referred to as a “negative side.” Further, the positive side of the C axis is also referred to as “above,” and the negative side is also referred to as “below.” Further, the plan view from a direction along the C axis is also referred to simply as a “plan view.” 
     The vibrator device  1  shown in  FIG. 1  is a physical quantity sensor for detecting angular velocity ωc defining the C axis as the detection axis. As described above, by using the vibrator device  1  as the physical quantity sensor, it is possible to install the vibrator device  1  in a wide variety of electronic apparatuses, the vibrator device  1  which has a high demand, and is high in convenience is achieved. Such a vibrator device  1  has a package  2 , a circuit element  3  housed in the package  2 , a support substrate  4 , and a vibrator element  6 . 
     The package  2  has a base  21  provided with a recessed part  211  opening in an upper surface, and a lid  22  which closes the opening of the recessed part  211  and is bonded to the upper surface of the base  21  via a bonding member  23 . The recessed part  211  forms an internal space S inside the package  2 , and the circuit element  3 , the support substrate  4 , and the vibrator element  6  are each housed in the internal space S. For example, the base  21  can be formed of ceramics such as alumina, and the lid  22  can be formed of a metal material such as kovar. It should be noted that the constituent material of each of the base  21  and the lid  22  is not particularly limited. 
     The internal space S is airtightly sealed, and is set in a reduced-pressure state, and more preferably a state approximate to a vacuum state. Thus, the viscosity resistance reduces and the vibration characteristics of the vibrator element  6  are improved. It should be noted that the atmosphere in the internal space S is not particularly limited, but can also be, for example, in the atmospheric pressure state or a pressurized state. 
     Further, the recessed part  211  is constituted by a plurality of recessed parts, and has a recessed part  211   a,  a recessed part  211   b,  and a recessed part  211   c  wherein the recessed part  211   a  opens in an upper surface of the base  21 , the recessed part  211   b  opens in a bottom surface of the recessed part  211   a  and is smaller in opening width than the recessed part  211   a,  and the recessed part  211   c  opens in a bottom surface of the recessed part  211   b  and is smaller in opening width than the recessed part  211   b.  Further, to the bottom surface of the recessed part  211   a,  there is fixed the support substrate  4  in a state of supporting the vibrator element  6 , and to the bottom surface of the recessed part  211   c,  there is fixed the circuit element  3 . 
     Further, as shown in  FIG. 2 , in the internal space S, the vibrator element  6 , the support substrate  4 , and the circuit element  3  are disposed so as to overlap each other in a plan view. In other words, the vibrator element  6 , the support substrate  4 , and the circuit element  3  are arranged along the C axis. Thus, it is possible to suppress the planar spread towards the directions along the A axis and the B axis of the package  2 , and thus, it is possible to achieve reduction in size of the vibrator device  1 . Further, the support substrate  4  is located between the vibrator element  6  and the circuit element  3 , and supports the vibrator element  6  so as to hold the vibrator element  6  from the lower side, namely the negative side of the C axis. 
     Further, as shown in  FIG. 1  and  FIG. 2 , on the bottom surface of the recessed part  211   a,  there is disposed a plurality of internal terminals  241 , on the bottom surface of the recessed part  211   b,  there is disposed a plurality of internal terminals  242 , and on the lower surface of the base  21 , there is disposed a plurality of external terminals  243 . The internal terminals  241 ,  242  and the external terminals  243  described above are electrically coupled via interconnections not shown formed inside the base  21 . Further, the internal terminals  241  are electrically coupled to the vibrator element  6  via bonding members B 1 , B 2  having electrical conductivity and the support substrate  4 , and the internal terminals  242  are electrically coupled to the circuit element  3  via bonding wires BW. 
     The vibrator element  6  is an angular velocity sensor element capable of detecting the angular velocity ωc defining the C axis as the detection axis as the physical quantity sensor element. As shown in  FIG. 3 , the vibrator element  6  has a vibrating substrate  7 , and electrodes  8  disposed on a surface of the vibrating substrate  7 . The vibrating substrate  7  is formed of a Z-cut quartz crystal substrate. The Z-cut quartz crystal substrate has spread in an X-Y plane defined by an X axis as the electrical axis and a Y axis as the mechanical axis, the electrical axis and the mechanical axis being crystal axes of the quartz crystal, and has a thickness in a direction along a Z axis as an optical axis. 
     The vibrator element  6  has a plate-like shape, and has a lower surface  7   a  as a third surface which is a principal surface at the support substrate  4  side, and an upper surface  7   b  as a fourth surface which is a principal surface at the opposite side to the lower surface  7   a.  Further, the vibrating substrate  7  has an element base  70 , a pair of detection arms  71 ,  72 , a pair of coupling arms  73 ,  74 , a pair of drive arms  75 ,  76 , and a pair of drive arms  77 ,  78 , wherein the element base  70  is located in a central part, the pair of detection arms  71 ,  72  extend toward both sides along the B axis from the element base  70 , the pair of coupling arms  73 ,  74  extend toward both sides along the A axis from the element base  70 , the pair of drive arms  75 ,  76  extend toward both sides along the B axis from a tip part of the coupling arm  73 , and the pair of drive arms  77 ,  78  extend toward both sides along the B axis from a tip part of the coupling arm  74 . 
     Further, as shown in  FIG. 4  and  FIG. 5 , the detection arms  71 ,  72  and the drive arms  75  through  78  each have the upper surface  7   b,  the lower surface  7   a,  and side surfaces  7   c,    7   d  as a pair of drive arm side surfaces each connecting the upper surface  7   b  and the lower surface  7   a.  Further, in each of the drive arms  75  through  78 , the upper surface  7   b  has a recessed part  7   e  recessed downward, and the lower surface  7   a  has a recessed part  7   f  recessed upward. In other words, the detection arms  71 ,  72  each have a substantially rectangular lateral cross-sectional shape, and the drive arms  75  through  78  each have substantially H-like lateral cross-sectional shape. 
     The electrodes  8  have a drive signal electrode  81 , a drive constant-potential electrode  82 , a first detection signal electrode  83 , a first detection ground electrode  84  as a detection constant-potential electrode, a second detection signal electrode  85 , and a second detection ground electrode  86  as the detection constant-potential electrode. It should be noted that the drive constant-potential electrode  82  is an electrode on a constant-potential side corresponding to the drive signal electrode  81 , and is connected to a low potential. It should be noted that the drive constant-potential electrode  82  can be connected to the ground. The first detection ground electrode  84  is the ground with respect to the first detection signal electrode  83 , and the second detection ground electrode  86  is the ground with respect to the second detection signal electrode  85 . 
     The drive signal electrode  81  is disposed on the both side surfaces  7   c,    7   d  of each of the drive arms  75 ,  76 , and the upper surface  7   b  and the lower surface  7   a  of each of the drive arms  77 ,  78 . Meanwhile, the drive constant-potential electrode  82  is disposed on the upper surface  7   b  and the lower surface  7   a  of each of the drive arms  75 ,  76 , and the both side surfaces  7   c,    7   d  of each of the drive arms  77 ,  78 . Further, the first detection signal electrode  83  is disposed on the upper surface  7   b  and the lower surface  7   a  of the detection arm  71 , and the first detection ground electrode  84  is disposed on the both side surfaces  7   c,    7   d  of the detection arm  71 . Meanwhile, the second detection signal electrode  85  is disposed on the upper surface  7   b  and the lower surface  7   a  of the detection arm  72 , and the second detection ground electrode  86  is disposed on the both side surfaces  7   c,    7   d  of the detection arm  72 . 
     Further, these electrodes  81  through  86  are each laid around to the lower surface of the element base  70 . Therefore, on the lower surface of the element base  70 , there are disposed a terminal  701 , a terminal  702 , a terminal  703 , a terminal  704 , a terminal  705 , and a terminal  706  wherein the terminal  701  is electrically coupled to the drive signal electrode  81 , the terminal  702  is electrically coupled to the drive constant-potential electrode  82 , the terminal  703  is electrically coupled to the first detection signal electrode  83 , the terminal  704  is electrically coupled to the first detection ground electrode  84 , the terminal  705  is electrically coupled to the second detection signal electrode  85 , and the terminal  706  is electrically coupled to the second detection ground electrode  86 . 
     Such a vibrator element  6  detects the angular velocity ωc in the following manner. Firstly, when applying a drive signal between the drive signal electrode  81  and the drive constant-potential electrode  82 , the drive arms through  78  make a flexural vibration along a plane parallel to the A axis and the B axis, and along the A axis as shown in  FIG. 6 . Hereinafter, this drive mode is referred to as a drive vibration mode. Further, when the angular velocity ωc is applied to the vibrator element  6  in the state of performing the drive in the drive vibration mode, the detection vibration mode shown in  FIG. 7  is newly excited. In the detection vibration mode, a Coriolis force acts on the drive arms  75  through  78  to excite the vibration in a direction indicated by the arrow D, and in concert with this vibration, the detection vibration due to the flexural vibration occurs in a direction indicated by the arrow E in the detection arms  71 ,  72 . A charge generated in the detection arm  71  due to such a detection vibration mode is taken out between the first detection signal electrode  83  and the first detection ground electrode  84  as a first detection signal, a charge generated in the detection arm is taken out between the second detection signal electrode  85  and the second detection ground electrode  86  as a second detection signal, and it is possible to detect the angular velocity ωc based on these first and second detection signals. 
     Going back to  FIG. 1 , the circuit element  3  is fixed to the bottom surface of the recessed part  211   c.  The circuit element  3  includes a drive circuit and a detection circuit for driving the vibrator element  6  to detect the angular velocity ωc applied to the vibrator element  6 . It should be noted that the circuit element  3  is not particularly limited, but can include other circuits such as a temperature compensation circuit. 
     Further, the support substrate  4  has a plate-like shape having an upper surface  4   a  as a first surface which is a principal surface at the vibrator element  6  side, and a lower surface  4   b  as a second surface which is a principal surface at the opposite side to the upper surface  4   a.  Further, as shown in  FIG. 2 , the support substrate  4  has the base  40 , a support  41 , a pair of beams  42 ,  43 , and a pair of beams  44 ,  45  wherein the support  41  supports the base  40 , and is provided with a first support  411  and a second support  412  disposed so as to be separated from each other on both sides along the A axis across the base  40 , the pair of beams  42 ,  43  couple the base  40  and the first support  411  to each other, and the pair of beams  44 ,  45  couple the base  40  and the second support  412  to each other. 
     Further, the element base  70  of the vibrator element  6  is fixed to the base  40  via the bonding members B 2  having electrical conductivity, and the first support  411  and the second support  412  are each fixed to the bottom surface of the recessed part  211   a  via the bonding member B 1 . In other words, the vibrator element  6  is fixed to the base  21  via the support substrate  4 . By making the support substrate  4  intervene between the vibrator element  6  and the base  21  as described above, it is possible to absorb or relax the stress propagating from the base  21  due to the support substrate  4 , and thus, it becomes difficult for the stress to reach the vibrator element  6 . Therefore, it is possible to effectively prevent the degradation and the fluctuation of the vibration characteristics of the vibrator element  6 . 
     In particular, in the present embodiment, the first and second supports  411 ,  412  are each located outside the vibrator element  6  in a plan view. Specifically, the first support  411  is located on the positive side in the A axis of the vibrator element  6 , and the second support  412  is located on the negative side in the A axis thereof. Thus, it is possible to dispose the first and second supports  411 ,  412  so as to sufficiently be distant from each other across the vibrator element  6 , and therefore, it is possible to support the vibrator element  6  in a more stable posture. Therefore, the vibration characteristics of the vibrator element  6  are improved. 
     It should be noted that the bonding members B 1 , B 2  are not particularly limited providing both of electrical conductivity and a bonding property are provided, and it is possible to use, for example, a variety of metal bumps such as gold bumps, silver bumps, copper bumps, or solder bumps, or an electrically conductive adhesive having an electrically conductive filler such as a silver filler dispersed in a variety of adhesives such as a polyimide type adhesive, an epoxy type adhesive, a silicone type adhesive, or an acrylic adhesive. When using the metal bumps which are in the former group as the bonding members B 1 , B 2 , it is possible to suppress generation of a gas from the bonding members B 1 , B 2 , and it is possible to efficiently prevent a change in environment, in particular rise in pressure, of the internal space S. On the other hand, when using the electrically conductive adhesive which is in the latter group as the bonding members B 1 , B 2 , the bonding members B 1 , B 2  become relatively soft, and it is possible to absorb or relax the stress described above also in the bonding members B 1 , B 2 . 
     In the present embodiment, the electrically conductive adhesive is used as the bonding members B 1 , and the metal bumps are used as the bonding members B 2 . By using the electrically conductive adhesive as the bonding members B 1  for bonding the support substrate  4  and the base  21  as materials different in type from each other, the thermal stress caused by a difference in thermal expansion coefficient therebetween can efficiently be absorbed or relaxed by the bonding members B 1 . On the other hand, since the support substrate  4  and the vibrator element  6  are bonded to each other with six bonding members B 2  disposed in a relatively small area, by using the metal bumps as the bonding members B 2 , wetting spread which occurs in the case of the electrically conductive adhesive is prevented, and thus, it is possible to effectively prevent the bonding members B 2  from having contact with each other. 
     As shown in  FIG. 3 , the beams  42 ,  43 ,  44 , and  45  each have a portion meandering to form an S-shape in the middle thereof, and each form a shape easy to elastically deform in a direction along the A axis, a direction along the B axis, and a direction along the C axis. By the beams  42  through  45  deforming in the direction along the A axis, the direction along the B axis, and the direction along the C axis, it is possible to effectively absorb or relax the stress propagating from the base  21 . It should be noted that the shapes of the beams  42  through  45  are each not particularly limited, but can be provided with, for example, a straight shape with the meandering portion omitted. Further, it is possible for at least one of the beams  42  through  45  to be different in shape from the others. 
     Further, in the plan view from the direction along the C axis, the drive arm  75  of the vibrator element  6  overlaps the beam  42 , the drive arm  76  overlaps the beam  43 , the drive arm  77  overlaps the beam  44 , and the drive arm  78  overlaps the beam  45 . Therefore, when the drive arms  75  through  78  are distorted in a direction along the C axis due to an impact or the like, the drive arms  75  through  78  have contact with the beams  42  through  45  to thereby be prevented from being further distorted excessively. In other words, the beams  42  through  45  function as stoppers for preventing the drive arms  75  through  78  from excessively deforming in the direction along the C axis. Thus, it is possible to prevent breakage of the vibrator element  6 . In particular, since the beams  42  through  45  are soft regions in the support substrate  4 , by making the drive arms  75  through  78  have contact with the beams  42  through  45 , it is also possible to relax the impact when having contact with each other. 
     Further, the beams  42 ,  43 ,  44 , and  45  each have a substantially rectangular lateral cross-sectional shape, and each have the upper surface  4   a,  the lower surface  4   b,  and side surfaces  4   c,    4   d  as a pair of beam side surfaces for connecting the upper surface  4   a  and the lower surface  4   b  to each other. 
     Such a support substrate  4  is formed of a quartz crystal substrate. By forming the support substrate  4  of the quartz crystal substrate similarly to the vibrating substrate  7  as described above, it is possible to make the support substrate  4  and the vibrating substrate  7  equal in thermal expansion coefficient to each other. Therefore, the thermal stress caused by the difference in thermal expansion coefficient from each other does not substantially occur between the support substrate  4  and the vibrating substrate  7 , and it becomes more difficult for the vibrator element  6  to be subjected to stress. Therefore, it is possible to more effectively prevent the degradation and the fluctuation of the vibration characteristics of the vibrator element  6 . 
     In particular, the support substrate  4  is formed of the quartz crystal substrate with the same cutting angle as that in the vibrating substrate  7  provided to the vibrator element  6 . In the present embodiment, since the vibrating substrate  7  is formed of a Z-cut quartz crystal substrate, the support substrate  4  is also formed of the Z-cut quartz crystal substrate. Further, the directions of the crystal axes of the support substrate  4  coincide with the directions of the crystal axes of the vibrating substrate  7 . In other words, the support substrate  4  and the vibrating substrate  7  coincide with each other in the X axis, the Y axis, and the Z axis. Since the quartz crystal is different in thermal expansion coefficient between the direction along the X axis, the direction along the Y axis, and the direction along the Z axis, by making the support substrate  4  and the vibrating substrate  7  the same in cutting angle to uniform the directions of the crystal axes, it becomes more difficult for the thermal stress described above to occur between the support substrate  4  and the vibrating substrate  7 . Therefore, it becomes more difficult for the vibrator element  6  to be subjected to stress, and thus, it is possible to more effectively prevent the degradation and the fluctuation of the vibration characteristics of the vibrator element  6 . 
     It should be noted that the support substrate  4  is not limited thereto, but can also be different in directions of the crystal axes from the vibrating substrate although the same in cutting angle as the vibrating substrate  7 . Further, the support substrate  4  can also be formed of a quartz crystal substrate different in cutting angle from the vibrating substrate  7 . Further, the support substrate  4  is not required to be formed of the quartz crystal substrate. In this case, it is preferable for the constituent material of the support substrate  4  to be a material having a difference in thermal expansion coefficient from the quartz crystal smaller than a difference in thermal expansion coefficient between the quartz crystal and the constituent material of the base  21 . 
     Further, on the support substrate  4 , there are disposed interconnections  5  for electrically coupling the vibrator element  6  and the internal terminals  241  to each other. The interconnections  5  include a drive signal interconnection  51 , a drive constant-potential interconnection  52 , a first detection signal interconnection  53 , a detection ground interconnection  54 , and a second detection signal interconnection  55  wherein the drive signal interconnection  51  electrically couples the terminal  701  and the internal terminal  241  to each other, the drive constant-potential interconnection  52  electrically couples the terminal  702  and the internal terminal  241  to each other, the first detection signal interconnection  53  as a detection signal interconnection electrically couples the terminal  703  and the internal terminal  241  to each other, the detection ground interconnection  54  as a detection constant-potential interconnection electrically couples the terminals  704 ,  706  and the internal terminal  241  to each other, and the second detection signal interconnection  55  as a detection signal interconnection electrically couples the terminal  705  and the internal terminal  241  to each other. 
     As shown in  FIG. 8  and  FIG. 9 , the drive signal interconnection  51  has terminals  511 ,  512  and an interconnection  513  wherein the terminal  511  is located at one end part of the drive signal interconnection  51 , and is disposed on the upper surface  4   a  of the base  40 , the terminal  512  is located at the other end part of the drive signal interconnection  51 , and is disposed on the lower surface  4   b  of the second support  412 , and the interconnection  513  electrically couples the terminals  511 ,  512  to each other. Further, the interconnection  513  is laid around the base  40  and the second support  412  passing the lower surfaces  4   b  of the beams  44 ,  45  to electrically couple the terminals  511 ,  512  to each other. It should be noted that the lower surface  4   b  of the beam  44  has two areas Q 41 , Q 42  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction, and similarly, the lower surface  4   b  of the beam  45  has two areas Q 51 , Q 52  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction. Further, the interconnection  513  is laid around the base  40  and the second support  412  passing inside the area Q 41  in the lower surface  4   b  of the beam  44 , and is then laid around the base  40  and the second support  412  passing inside the area Q 51  in the lower surface  4   b  of the beam  45 . 
     The drive constant-potential interconnection  52  has terminals  521 ,  522  and an interconnection  523  wherein the terminal  521  is located at one end part of the drive constant-potential interconnection  52 , and is disposed on the upper surface  4   a  of the base  40 , the terminal  522  is located at the other end part of the drive constant-potential interconnection  52 , and is disposed on the lower surface  4   b  of the first support  411 , and the interconnection  523  electrically couples the terminals  521 ,  522  to each other. Further, the interconnection  523  is laid around the base  40  and the first support  411  passing the lower surfaces  4   b  of the beams  42 ,  43  to electrically couple the terminals  521 ,  522  to each other. It should be noted that the lower surface  4   b  of the beam  42  has two areas Q 21 , Q 22  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction, and similarly, the lower surface  4   b  of the beam  43  has two areas Q 31 , Q 32  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction. Further, the interconnection  523  is laid around the base  40  and the first support  411  passing inside the area Q 21  in the lower surface  4   b  of the beam  42 , and is then laid around the base  40  and the first support  411  passing inside the area Q 31  in the lower surface  4   b  of the beam  43 . 
     The first detection signal interconnection  53  has terminals  531 ,  532  and an interconnection  533  wherein the terminal  531  is located at one end part of the first detection signal interconnection  53 , and is disposed on the upper surface  4   a  of the base  40 , the terminal  532  is located at the other end part of the first detection signal interconnection  53 , and is disposed on the lower surface  4   b  of the first support  411 , and the interconnection  533  electrically couples the terminals  531 ,  532  to each other. Further, the interconnection  533  is laid around the base  40  and the first support  411  passing the lower surface  4   b  of the beam  43  to electrically couple the terminals  531 ,  532  to each other. It should be noted that as described above, the lower surface  4   b  of the beam  43  has the two areas Q 31 , Q 32  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction. Further, the interconnection  533  is laid around the base  40  and the first support  411  passing inside the area Q 32  of the lower surface  4   b  of the beam  43 . In other words, in the lower surface  4   b  of the beam  43 , there are arranged the interconnections  533 ,  523  in the width direction of the beam  43 . 
     The second detection signal interconnection  55  has terminals  551 ,  552  and an interconnection  553  wherein the terminal  551  is located at one end part of the second detection signal interconnection  55 , and is disposed on the upper surface  4   a  of the base  40 , the terminal  552  is located at the other end part of the second detection signal interconnection  55 , and is disposed on the lower surface  4   b  of the first support  411 , and the interconnection  553  electrically couples the terminals  551 ,  552  to each other. Further, the interconnection  553  is laid around the base  40  and the first support  411  passing the lower surface  4   b  of the beam  42  to electrically couple the terminals  551 ,  552  to each other. It should be noted that as described above, the lower surface  4   b  of the beam  42  has the two areas Q 21 , Q 22  obtained by dividing the lower surface  4   b  into two areas substantially equal to each other in the width direction. Further, the interconnection  553  is laid around the base  40  and the first support  411  passing inside the area Q 22  of the lower surface  4   b  of the beam  42 . In other words, in the lower surface  4   b  of the beam  42 , there are arranged the interconnections  553 ,  523  in the width direction of the beam  42 . 
     The detection ground interconnection  54  has terminals  541 ,  542  and an interconnection  543  wherein the terminal  541  is located at one end part of the detection ground interconnection  54 , and is disposed on the upper surface  4   a  of the base  40 , the terminal  542  is located at the other end part of the detection ground interconnection  54 , and is disposed on the lower surface  4   b  of the second support  412 , and the interconnection  543  electrically couples the terminals  541 ,  542  to each other. The interconnection  543  is disposed so as to cover as broad range as possible of a portion exposed from the interconnections  51 ,  52 ,  53 , and  55  of the support substrate  4  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . The detailed description will hereinafter be presented. 
     In the base  40 , the interconnection  543  is disposed throughout a broad range of the upper surface  4   a,  the side surfaces, and the lower surface  4   b  of the base  40  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . Further, in the first and second supports  411 ,  412 , the interconnection  543  is disposed throughout substantially the entire area of the upper surfaces  4   a  of the first and second supports  411 ,  412  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . 
     Further, in the beam  42 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  42  while keeping an electrically isolated state with the other interconnections  52 ,  55 . Further, in the beam  43 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  43  while keeping an electrically isolated state with the other interconnections  52 ,  53 . Further, in the beam  44 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction and the area Q 42  of the lower surface  4   b  of the beam  44  while keeping an electrically isolated state with the other interconnection  51 . Further, in the beam  45 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction and the area Q 52  of the lower surface  4   b  of the beam  45  while keeping an electrically isolated state with the other interconnection  51 . 
     By arranging the detection ground interconnection  54  in such a manner, it is possible to exert the following effects. In the beam  43 , the interconnection  533  electrically coupled to the first detection signal electrode is disposed on the lower surface  4   b,  and the interconnection  543  electrically coupled to the first and second detection ground electrodes  84 ,  86  is disposed on the upper surface  4   a.  By adopting such an arrangement, the interconnection  543  is located between the vibrator element  6  and the interconnection  533 . Similarly, in the beam  42 , the interconnection  553  electrically coupled to the second detection signal electrode  85  is disposed on the lower surface  4   b,  and the interconnection  543  electrically coupled to the first and second detection ground electrodes  84 ,  86  is disposed on the upper surface  4   a.  By adopting such an arrangement, the interconnection  543  is located between the vibrator element  6  and the interconnection  553 . 
     The interconnection  543  is connected to the ground, namely a constant potential, and therefore, functions as a shield layer, and thus, it is possible to suppress the noise interference between the drive signal electrode  81  disposed in the vibrator element  6  and the interconnections  533 ,  553 . Therefore, it is possible to effectively prevent the drive signal applied to the drive signal electrode  81  from mixing in the detection signal as a noise via the interconnections  533 ,  553 . Therefore, it is possible to transmit the highly accurate detection signal high in S/N ratio to the circuit element  3 , and thus, it is possible to detect the angular velocity ωc with higher accuracy. 
     In particular, in the present embodiment, in each of the beams  42 ,  43 , the interconnection  543  is disposed not only on the upper surface  4   a  but also throughout both of the side surfaces  4   c,    4   d  and the lower surface  4   b.  In other words, the interconnection  543  is disposed so as to surround the periphery of each of the interconnections  533 ,  553 . Therefore, the shield effect described above is further enhanced, and it is possible to more effectively suppress the noise interference between the drive signal electrode  81  and the interconnections  533 ,  553 . Further, on the lower surfaces  4   b  of the beams  42 ,  43 , there is disposed the interconnection  523  electrically coupled to the drive constant-potential electrode  82  besides the interconnections  533 ,  553 . The interconnection  523  is connected to the constant potential, and therefore, functions as a shield layer. Therefore, it is also possible to suppress the noise interference between the drive signal electrode  81  and the interconnections  533 ,  553  by the interconnection  523 . It should be noted that the interconnection  523  can be connected to the ground. 
     Further, in the plan view from a direction along the C axis, the beam  43  on which the interconnection  533  is disposed crosses the drive arm  76 , and has a portion opposed to the drive arm  76 , namely a portion overlapping the drive arm  76 . Further, in the plan view from the C-axis direction, the beam  42  on which the interconnection  553  is disposed crosses the drive arm  75 , and has a portion overlapping the drive arm  75 . Therefore, the interconnections  533 ,  553  disposed on the beams  42 ,  43  come closer to the drive signal electrode  81  disposed on the drive arms  75 ,  76 , and the noise interference described above is extremely easy to occur. In such a positional relationship, by disposing the interconnection  543  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the interconnections  533 ,  553 , it is possible to more remarkably exert the noise interference suppressing effect described above. 
     In particular, in the drive arms  75 ,  76  overlapping the beams  42 ,  43  in the plan view from a direction along the C axis, the drive signal electrode  81  is disposed on the both side surfaces  7   c,    7   d,  the drive constant-potential electrode  82  is disposed on the lower surface  7   a  and the upper surface  7   b.  In other words, the drive signal electrode  81  is laterally oriented with respect to the interconnections  533 ,  553 . Therefore, the capacitive coupling is apt to be formed between the first and second detection signal interconnections  53 ,  55  bypassing the beams  42 ,  43 . Therefore, by disposing the interconnection  543  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the interconnections  533 ,  553 , it is possible to more remarkably exert the noise interference suppressing effect between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55 . 
     Further, since the interconnection  543  is also disposed on the upper surfaces  4   a  of the first and second supports  411 ,  412 , the interconnection  543  is disposed throughout a broader range, and thus, it is possible to more remarkably exert the noise interference suppressing effect described above. Further, by disposing the interconnection  543  throughout a broad range of the support substrate  4 , it is also possible to effectively prevent the noise interference between the drive signal electrode  81  and the circuit element  3 . 
     The vibrator device  1  is hereinabove described. As described above, such a vibrator device  1  is provided with the vibrator element  6 , and the support substrate  4  which is disposed so as to be opposed to the vibrator element  6 , provided with the upper surface  4   a  as a first surface at the vibrator element  6  side, and the lower surface  4   b  as a second surface at the opposite side to the upper surface  4   a,  and supports the vibrator element  6 . Further, the vibrator element  6  has the drive arms  75 ,  76 ,  77 , and  78  and the detection arms  71 ,  72  wherein the drive arms  75 ,  76 ,  77 , and  78  are provided with the drive signal electrode  81  and the drive constant-potential electrode  82 , and perform the drive vibration in response to application of the drive signal to the drive signal electrode  81 , and the detection arms  71 ,  72  which have the first and second detection signal electrodes  83 ,  85  as the detection signal electrodes and the first and second detection ground electrodes  84 ,  86  as the detection constant-potential electrodes, and perform the detection vibration in response to the angular velocity ωc as the physical quantity of the detection target to thereby output the detection signal from the first and second detection signal electrodes  83 ,  85 . 
     Further, the support substrate  4  has the base  40  supporting the vibrator element  6 , the first and second support  411 ,  412  as supports supporting the base  40 , the plurality of beams  42 ,  43 ,  44 , and  45  coupling the base  40  and the first and second supports  411 ,  412  to each other, the drive signal interconnection  51  which is electrically coupled to the drive signal electrode  81 , and is laid around the base  40  and the second support  412  passing at least one beam, namely the beams  44 ,  45  in the present embodiment, the drive constant-potential interconnection  52  which is electrically coupled to the drive constant-potential electrode  82 , and is laid around the base  40  and the first support  411  passing at least one beam, namely the beams  42 ,  43  in the present embodiment, the first detection signal interconnection  53  as a detection signal interconnection which is electrically coupled to the first detection signal electrode  83 , and is laid around the base  40  and the first support  411  passing at least one beam, namely the beam  43  in the present embodiment, the second detection signal interconnection  55  as a detection signal interconnection which is electrically coupled to the second detection signal electrode  85 , and is laid around the base  40  and the first support  411  passing at least one beam, namely the beam  42  in the present embodiment, and the detection ground interconnection  54  as a detection constant-potential interconnection which is electrically coupled to the first and second detection ground electrodes  84 ,  86 , and is laid around the base  40  and the first and second supports  411 ,  412  passing at least one beam, namely the beams  42  through  45  in the present embodiment. 
     Further, in the predetermined beam  43  included in the plurality of beams  42  through  45 , the detection ground interconnection  54  is disposed on the upper surface  4   a,  the first detection signal interconnection  53  is disposed on the lower surface  4   b,  and in the predetermined beam  42  included in the plurality of beams  42  through  45 , the detection ground interconnection  54  is disposed on the upper surface  4   a,  and the second detection signal interconnection  55  is disposed on the lower surface  4   b.    
     According to such a configuration, in the beam  43 , the detection ground interconnection  54  is located between the vibrator element  6  and the first detection signal interconnection  53 . Similarly, in the beam  42 , the detection ground interconnection  54  is located between the vibrator element  6  and the second detection signal interconnection  55 . The detection ground interconnection  54  is connected to the ground, namely a constant potential, and therefore, functions as a shield layer, and thus, it is possible to suppress the noise interference between the drive signal electrode  81  disposed in the vibrator element  6  and the first and second detection signal interconnections  53 ,  55  disposed on the support substrate  4 . Therefore, according to the vibrator device  1 , it is possible to effectively prevent the drive signal applied to the drive signal electrode  81  from mixing in the detection signal as a noise via the first and second detection signal interconnections  53 ,  55 . Therefore, it is possible to obtain the highly accurate detection signal high in S/N ratio, and thus, it is possible to detect the angular velocity ωc with higher accuracy. 
     Further, as described above, the predetermined beams  42 ,  43  each have the side surfaces  4   c,    4   d  as the pair of beam side surfaces for connecting the upper surface  4   a  and the lower surface  4   b  to each other. Further, in the predetermined beams  42 ,  43 , the detection ground interconnection  54  is disposed on the upper surface  4   a,  each of the side surfaces  4   c,    4   d,  and the lower surface  4   b.  By adopting such an arrangement, it is possible to dispose the interconnection  543  so as to surround the periphery of each of the interconnections  533 ,  553 . Therefore, the shield effect described above is further enhanced, and it is possible to more effectively suppress the noise interference between the drive signal electrode  81  and the interconnections  533 ,  553 . 
     Further, as described above, the predetermined beam  42  has a portion opposed to the drive arm  75 , and the predetermined beam  43  has a portion opposed to the drive arm  76 . Therefore, the interconnections  533 ,  553  disposed on the beams  42 ,  43  come closer to the drive signal electrode disposed on the drive arms  75 ,  76 , and the noise interference described above is extremely easy to occur. In such a positional relationship, by disposing the detection ground interconnection  54  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the interconnections  533 ,  553 , it is possible to more remarkably exert the noise interference suppressing effect described above. 
     Further, as described above, the drive arms  75 ,  76  each have the lower surface  7   a  as a third surface at the support substrate  4  side, the upper surface  7   b  as a fourth surface at the opposite side to the lower surface  7   a,  and the pair of side surfaces  7   c,    7   d  each connecting the lower surface  7   a  and the upper surface  7   b  to each other. Further, the drive constant-potential electrode  82  is disposed on the lower surface  7   a  and the upper surface  7   b,  and the drive signal electrode  81  is disposed on each of the side surfaces  7   c,    7   d.  In such a configuration, the capacitive coupling is apt to be formed between the first and second detection signal interconnections  53 ,  55  bypassing the beams  42 ,  43 . Therefore, by disposing the interconnection  543  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the interconnections  533 ,  553 , it is possible to more remarkably exert the noise interference suppressing effect between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55 . 
     Further, as described above, on the upper surfaces  4   a  of the first and second supports  411 ,  412 , there is disposed the detection ground interconnection  54 . Thus, it is possible to dispose the detection ground interconnection  54  throughout a broader range on the support substrate  4 . Therefore, the noise interference suppressing effect described above can more remarkably be exerted. 
     Further, as described above, defining the three axes perpendicular to each other as the A axis, the B axis, and the C axis, and assuming that the vibrator element  6  and the support substrate  4  are opposed to each other in a direction along the C axis, the vibrator element  6  has the element base  70 , the pair of detection arms  71 ,  72  extending toward the both sides along the B axis from the element base  70 , the pair of coupling arms  73 ,  74  extending toward the both sides along the A axis from the element base  70 , the pair of drive arms  75 ,  76  extending toward the both sides along the B axis from the tip part of the coupling arm  73 , the pair of drive arms  77 ,  78  extending toward the both sides along the B axis from the tip part of the coupling arm  74 , and the element base  70  is fixed to the base  40  via the bonding members B 2 . Thus, the vibrator element  6  capable of accurately detecting the angular velocity ωc is achieved. 
     Further, as described above, the vibrator device  1  has the circuit element  3  electrically coupled to the vibrator element  6 . Further, between the vibrator element  6  and the circuit element  3 , there is located the support substrate  4 . According to such a configuration, the detection ground interconnection  54  and the drive constant-potential interconnection  52  disposed on the support substrate  4  function as shield layers, and thus, the noise interference between the vibrator element  6  and the circuit element  3  can effectively be suppressed. 
     Second Embodiment 
       FIG. 10  is a perspective view of a support substrate provided to a vibrator device according to a second embodiment viewed from an upper side.  FIG. 11  is a perspective view of the support substrate shown in  FIG. 10  viewed from a lower side. 
     The present embodiment is substantially the same as the first embodiment described above except the point that the vibrator element  6  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 10  and  FIG. 11 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 10  and  FIG. 11 , the drive signal electrode  81  is disposed on the upper surface  7   b  and the lower surface  7   a  of each of the drive arms  75 ,  76 , and the both side surfaces  7   c,    7   d  of each of the drive arms  77 ,  78 . On the other hand, the drive constant-potential electrode  82  is disposed on the both side surfaces  7   c,    7   d  of each of the drive arms  75 ,  76 , and the upper surface  7   b  and the lower surface  7   a  of each of the drive arms  77 ,  78 . 
     In other words, in the drive arms  75 ,  76  overlapping the beams  42 ,  43  in the plan view from a direction along the C axis, the drive signal electrode  81  is disposed on the lower surface  7   a  and the upper surface  7   b,  and the drive constant-potential electrode  82  is disposed on the both side surfaces  7   c,    7   d.  Therefore, the drive signal electrode  81  faces to the interconnections  533 ,  553 , and thus, the capacitive coupling is apt to be formed between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55  in some cases compared to when the drive signal electrode  81  is disposed on the both side surfaces  7   c,    7   d  as in the drive arms  75 ,  76  in the first embodiment described above. Therefore, by disposing the interconnection  543  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the interconnections  533 ,  553 , it is possible to more remarkably exert the noise interference suppressing effect between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55 . 
     As described above, the drive arms  75 ,  76  each have the lower surface  7   a  as the third surface at the support substrate  4  side, the upper surface  7   b  as the fourth surface at the opposite side to the lower surface  7   a,  and the side surfaces  7   c,    7   d  as a pair of drive arm side surfaces each connecting the lower surface  7   a  and the upper surface  7   b  to each other. Further, the drive signal electrode  81  is disposed on the lower surface  7   a  and the upper surface  7   b,  and the drive constant-potential electrode  82  is disposed on each of the side surfaces  7   c,    7   d.  Therefore, the drive signal electrode  81  disposed on the lower surface  7   a  faces to the support substrate  4 , and the noise interference between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55  is apt to occur. Therefore, by disposing the detection ground interconnection  54  functioning as the shield layer on the upper surfaces  4   a  of the beams  42 ,  43 , namely between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55 , it is possible to more remarkably exert the noise interference suppressing effect described above. 
     According also to such a second embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Third Embodiment 
       FIG. 12  is a perspective view of a support substrate provided to a vibrator device according to a third embodiment viewed from an upper side.  FIG. 13  is a perspective view of the support substrate shown in  FIG. 12  viewed from a lower side. 
     The present embodiment is substantially the same as the first embodiment described above except the point that the configuration of the support substrate  4  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 12  and  FIG. 13 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 12  and  FIG. 13 , the interconnection  513  of the drive signal interconnection  51  is laid around the base  40  and the second support  412  passing the lower surfaces  4   b  of the beams  44 ,  45  to electrically couple the terminals  511 ,  512  to each other. Further, the interconnection  533  of the first detection signal interconnection  53  is laid around the base  40  and the first support  411  passing the lower surface  4   b  of the beam  43  to electrically couple the terminals  531 ,  532  to each other. Further, the interconnection  553  of the second detection signal interconnection  55  is laid around the base  40  and the first support  411  passing the lower surface  4   b  of the beam  42  to electrically couple the terminals  551 ,  552  to each other. The arrangement of the drive signal interconnection  51 , the first detection signal interconnection  53 , and the second detection signal interconnection  55  is substantially the same as in the first embodiment described above. 
     In contrast, the interconnection  523  of the drive constant-potential interconnection  52  and the interconnection  543  of the detection ground interconnection  54  have a different arrangement from that of the first embodiment described above, and are disposed so as to cover as broad range as possible of a portion exposed from the interconnections  51 ,  52 ,  53 , and  55  of the support substrate  4  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . The detailed description will hereinafter be presented. 
     In the base  40 , the interconnection  543  is disposed throughout a broad range of the upper surface  4   a,  the side surfaces, and the lower surface  4   b  of the base  40  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . Further, in the first support  411 , the interconnection  523  is disposed throughout substantially the entire area of the upper surface  4   a  of the first support  411  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . Meanwhile, in the second support  412 , the interconnection  543  is disposed throughout substantially the entire area of the upper surface  4   a  of the second support  412  while keeping an electrically isolated state with the other interconnections  51 ,  52 ,  53 , and  55 . 
     Further, in the beam  42 , the interconnection  523  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  42  while keeping an electrically isolated state with the other interconnection  55 . Further, in the beam  43 , the interconnection  523  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  43  while keeping an electrically isolated state with the other interconnection  53 . Further, in the beam  44 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  44  while keeping an electrically isolated state with the other interconnection  51 . Further, in the beam  45 , the interconnection  543  is disposed throughout the upper surface  4   a,  both of the side surfaces  4   c,    4   d,  and both end parts in the width direction of the lower surface  4   b  of the beam  45  while keeping an electrically isolated state with the other interconnection  51 . 
     According to such a configuration as described above, it is possible to dispose the drive constant-potential interconnection  52  between the drive signal electrode  81  disposed on each of the drive arms  75 ,  76  and the first and second detection signal interconnections  53 ,  55  disposed on the lower surfaces  4   b  of the beams  42 ,  43 . 
     The drive constant-potential interconnection  52  is connected to the constant potential, and therefore, functions as a shield layer. Therefore, it is possible to suppress the noise interference between the drive signal electrode  81  disposed on the vibrator element  6  and the first and second detection signal interconnections  53 ,  55  disposed on the beams  42 ,  43 . Therefore, it is possible to transmit the highly accurate detection signal high in S/N ratio to the circuit element  3 , and thus, it is possible to detect the angular velocity ωc with higher accuracy. It should be noted that the drive constant-potential electrode  52  can be connected to the ground similarly to the detection ground interconnection  54 . 
     As described above, in the predetermined beam  43  included in the plurality of beams  42  through  45 , the drive constant-potential interconnection  52  is disposed on the upper surface  4   a,  the first detection signal interconnection is disposed on the lower surface  4   b,  and in the predetermined beam  42  included in the plurality of beams  42  through  45 , the drive constant-potential interconnection  52  is disposed on the upper surface  4   a,  and the second detection signal interconnection  55  is disposed on the lower surface  4   b.    
     According to such a configuration, in the beam  43 , the drive constant-potential interconnection  52  is located between the vibrator element  6  and the first detection signal interconnection  53 . Similarly, in the beam  42 , the drive constant-potential interconnection  52  is located between the vibrator element  6  and the second detection signal interconnection  55 . The drive constant-potential interconnection  52  is connected to a constant potential, and therefore, functions as a shield layer, and thus, it is possible to suppress the noise interference between the drive signal electrode  81  disposed in the vibrator element  6  and the first and second detection signal interconnections  53 ,  55  disposed on the support substrate  4 . Therefore, according to the vibrator device  1 , it is possible to effectively prevent the drive signal applied to the drive signal electrode  81  from mixing in the detection signal as a noise via the first and second detection signal interconnections  53 ,  55 . Therefore, it is possible to obtain the highly accurate detection signal high in S/N ratio, and thus, it is possible to detect the angular velocity ωc with higher accuracy. 
     According also to such a third embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Fourth Embodiment 
       FIG. 14  is a perspective view of a support substrate provided to a vibrator device according to a fourth embodiment viewed from an upper side. 
     The present embodiment is substantially the same as the first embodiment described above except the point that the configuration of the support substrate  4  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 14 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 14 , the support  41  has a frame-like shape surrounding the base  40  in the plan view in a direction along the C axis. Further, in substantially the entire area of the upper surface  4   a  of the support  41  having the frame-like shape, there are disposed the interconnection  523  of the drive constant-potential interconnection  52  and the interconnection  543  of the detection ground interconnection  54 . By adopting such a configuration as described above, the area of the detection ground interconnection  54  increases compared to, for example, the first embodiment described above, and accordingly, it is possible to effectively suppress the noise interference between the drive signal electrode  81  and the first and second detection signal interconnections  53 ,  55  and the noise interference between the drive signal electrode  81  and the circuit element  3 . 
     According also to such a fourth embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Fifth Embodiment 
       FIG. 15  is a plan view showing a vibrator device according to a fifth embodiment. 
     The present embodiment is substantially the same as the first embodiment described above except the point that the orientation of the vibrator element  6  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 15 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 15 , in the vibrator device  1  according to the present embodiment, the vibrator element  6  is disposed with a rotation of 90° around the C axis from the orientation in the first embodiment. 
     According also to such a fifth embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Sixth Embodiment 
       FIG. 16  is a cross-sectional view showing a vibrator device according to a sixth embodiment. 
     The present embodiment is substantially the same as the first embodiment described above except the point that the arrangement of the vibrator element  6  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 16 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 16 , the vibrator element  6  is disposed between the support substrate  4  and the circuit element  3 . In other words, the vibrator element  6  is located on the lower side of the support substrate  4 , and is supported so as to be suspended from the support substrate  4 . According to such a configuration as described above, since it is possible to dispose the vibrator element  6  in a space between the support substrate  4  and the circuit element  3 , reduction in size, in particular, reduction in thickness of the vibrator device  1  can accordingly be achieved. It should be noted that there is a possibility that the noise suppressing effect is somewhat degraded compared to the first embodiment described above in the point that, for example, the noise interference between the circuit element  3  and the vibrator element  6  cannot be suppressed by the support substrate  4 . 
     According also to such a sixth embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Seventh Embodiment 
       FIG. 17  is a cross-sectional view showing a support substrate provided to a vibrator device according to a seventh embodiment. 
     The present embodiment is substantially the same as the sixth embodiment described above except the point that the arrangement of the circuit element  3  is different. It should be noted that in the following description, the present embodiment will be described with a focus on the difference from the embodiment described above, and the description of substantially the same issues will be omitted. Further, in  FIG. 17 , the constituents substantially identical to those of the embodiment described above are denoted by the same reference symbols. 
     As shown in  FIG. 17 , in the vibrator device  1  according to the present embodiment, the circuit element  3  is fixed to the bottom surface of the recessed part  211   a  via bonding members B 3  having electrical conductivity, the support substrate  4  is fixed to the lower surface of the circuit element  3  via the bonding members B 1 , and the vibrator element  6  is fixed to the lower surface of the support substrate  4  via the bonding members B 2 . By making the support substrate  4  and the circuit element  3  intervene between the vibrator element  6  and the base  21  as described above, it is possible to absorb or relax the stress propagating from the base  21  due to the support substrate  4  and the circuit element  3 , and thus, it becomes difficult for the stress to reach the vibrator element  6 . Therefore, it is possible to effectively prevent the degradation and the fluctuation of the vibration characteristics of the vibrator element  6 . Further, according to the present embodiment, since it is possible to dispose the circuit element  3  inside the recessed part  211   a,  the circuit element  3  is allowed to increase in size compared to when disposing the circuit element  3  inside the recessed part  211   c  as in the first embodiment described above. 
     According also to such a seventh embodiment as described above, substantially the same advantages as in the first embodiment described above can be exerted. 
     Eighth Embodiment 
       FIG. 18  is a perspective view showing a personal computer according to an eighth embodiment. 
     A personal computer  1100  as an electronic apparatus shown in  FIG. 18  is constituted by a main body section  1104  equipped with a keyboard  1102 , and a display unit  1106  equipped with a display section  1108 , and the display unit  1106  is pivotally supported with respect to the main body section  1104  via a hinge structure. Further, the personal computer  1100  incorporates the vibrator device  1  as a physical quantity sensor, and a signal processing circuit  1110  for performing signal processing, namely control of each section, based on an output signal from the vibrator device  1 . 
     As described above, the personal computer  1100  as the electronic apparatus is provided with the vibrator device  1 , and the signal processing circuit  1110  for performing the signal processing based on the output signal of the vibrator device  1 . Therefore, it is possible to appreciate the advantages of the vibrator device  1  described above, and the high reliability can be exerted. 
     Ninth Embodiment 
       FIG. 19  is a perspective view showing a cellular phone according to a ninth embodiment. 
     A cellular phone  1200  as an electronic apparatus shown in  FIG. 19  is provided with an antenna not shown, a plurality of operation buttons  1202 , an ear piece  1204 , and a mouthpiece  1206 , and a display section  1208  is disposed between the operation buttons  1202  and the ear piece  1204 . Further, the cellular phone  1200  incorporates the vibrator device  1  as a physical quantity sensor, and a signal processing circuit  1210  for performing signal processing, namely control of each section, based on the output signal from the vibrator device  1 . 
     As described above, the cellular phone  1200  as the electronic apparatus is provided with the vibrator device  1 , and the signal processing circuit  1210  for performing the signal processing based on the output signal of the vibrator device  1 . Therefore, it is possible to appreciate the advantages of the vibrator device  1  described above, and the high reliability can be exerted. 
     Tenth Embodiment 
       FIG. 20  is a perspective view showing a digital still camera according to a tenth embodiment. 
     A digital still camera  1300  as an electronic apparatus shown in  FIG. 20  is provided with a case  1302 , and on a back surface of the case  1302 , there is disposed a display section  1310 . The display section  1310  is provided with a configuration of performing display based on an imaging signal due to a CCD, and functions as a finder for displaying the photographic subject as an electronic image. Further, on the front side of the case  1302 , there is disposed a light receiving unit  1304  including an optical lens, the CCD, and so on. Then, when the photographer checks an object image displayed on the display  1310 , and then presses a shutter button  1306 , the imaging signal from the CCD at that moment is transferred to and stored in a memory  1308 . Further, the digital still camera  1300  incorporates the vibrator device  1  as a physical quantity sensor, and a signal processing circuit  1312  for performing signal processing, namely control of each section, based on the output signal from the vibrator device  1 . 
     As described above, the digital still camera  1300  as the electronic apparatus is provided with the vibrator device  1 , and the signal processing circuit  1312  for performing the signal processing based on the output signal of the vibrator device  1 . Therefore, it is possible to appreciate the advantages of the vibrator device  1  described above, and the high reliability can be exerted. 
     It should be noted that the electronic apparatus equipped with the vibrator device  1  can also be, for example, a smartphone, a tablet terminal, a timepiece including a smart watch, an inkjet type ejection device such as an inkjet printer, a wearable terminal such as an HMD (a head-mounted display) and a pair of smart glasses, a television set, a video camera, a video cassette recorder, a car navigation system, a pager, a personal digital assistance, an electronic dictionary, an electronic translator, an electronic calculator, a computerized game machine, training equipment, a word processor, a workstation, a video phone, a security video monitor, a pair of electronic binoculars, a POS terminal, medical equipment such as an electronic thermometer, an electronic manometer, an electronic blood sugar meter, an electrocardiogram measurement instrument, an ultrasonograph, and an electronic endoscope, a fish detector, a variety of types of measurement instruments, a variety of types of gauges to be installed in a car, an aircraft, a ship, or a boat, a base station for mobile terminals, and a flight simulator, besides the personal computer  1100 , the mobile phone  1200 , and the digital still camera  1300  described above. 
     Eleventh Embodiment 
       FIG. 21  is a perspective view showing a car according to an eleventh embodiment. 
     A car  1500  as a vehicle shown in  FIG. 21  includes a system  1502  such as an engine system, a brake system, a steering system, an attitude control system, or a keyless entry system. Further, the car  1500  incorporates the vibrator device  1  as a physical quantity sensor, and a signal processing circuit  1510  for performing signal processing, namely control of the system  1502 , based on the output signal from the vibrator device  1 . 
     As described above, the car  1500  as the vehicle is provided with the vibrator device  1 , and the signal processing circuit  1510  for performing the signal processing based on the output signal of the vibrator device  1 . Therefore, it is possible to appreciate the advantages of the vibrator device  1  described above, and the high reliability can be exerted. 
     It should be noted that the vehicle equipped with the vibrator device  1  can also be, for example, a robot, a drone, an electric wheelchair, a two-wheeled vehicle, an airplane, a helicopter, a ship, an electric train, a monorail, a cargo-carrying vehicle, a rocket, or a space vehicle besides the car  1500 . 
     Although the vibrator device, the electronic apparatus, and the vehicle according to the present disclosure are described based on the illustrated embodiments, the present disclosure is not limited thereto, but the configuration of each of the sections can be replaced with an arbitrary configuration having substantially the same function. Further, the present disclosure can also be added with any other constituents. Further, it is also possible to arbitrarily combine any of the embodiments with each other.