Abstract:
A physical quantity sensor for detecting a physical quantity includes: a first substrate having a first physical quantity detection element; a second substrate having a second physical quantity detection element, wherein the second substrate contacts the first substrate; and an accommodation space disposed between the first substrate and the second substrate. The first physical quantity detection element is disposed in the accommodation space. The first physical quantity detection element is protected with the first substrate and the second substrate since the first physical quantity detection element is sealed in the accommodation space.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 11/808,774, which was filed on Jun. 12, 2007 and is based on Japanese Patent Applications No. 2006-163877 filed on Jun. 13, 2006, and No. 2007-60596 filed on Mar. 9, 2007, the disclosures of which are incorporated herein by reference. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to a physical quantity sensor. 
     BACKGROUND OF THE INVENTION 
     As technical ideas capable of combining pressure sensors with other dynamic amount (i.e., physical quantity) detecting sensors in module forms, one technical idea is disclosed in JP-A-2002-286571, and another technical idea is described in Japanese magazine “DEMPA-SHINBUN HIGH TECHNOLOGY” issued by DEMPA-SHINBUN newspaper publisher on May 13, 2004. 
     The technical idea disclosed in JP-A-2002-286571 is related to the pressure speed sensor equipped with the pressure detecting function for detecting the air pressure of the tire and the speed detecting function for detecting the rotation speed of the tire. The pressure speed sensor is equipped with the diaphragm which receives pressure, the movable electrode and the fixed electrode which detect pressure, and the movable electrode and the fixed electrode which detect speeds. These pressure detecting movable and fixed electrodes, and the speed detecting movable and fixed electrodes are provided within the reference pressure chamber which has been hermetically closed by the housing. Both pressure and speeds are detected based upon changes in electrostatic capacitances between the movable electrodes and the fixed electrodes. Then, since the respective movable and fixed electrodes of this pressure/speed sensor are provided within the reference pressure chamber, it is possible to avoid that these movable and fixed electrodes are corroded by adhering dust and by applying acids to these electrodes. 
     The Japanese magazine “DEMPA-SHINBUN HIGH TECHNOLOGY” describes the tire air pressure sensor in which the pressure detecting sensor equipped with the pressure detecting function and the acceleration sensor equipped with the acceleration detecting function have been integrated in the same die. In the tire air pressure sensor, the pressure sensor (piezoelectric resistor) is equipped on the plane of the pressure film on the side of the reference pressure chamber so as to detect deformations of this pressure film, and thus, the tire air pressure is sensed based upon the detected deformations of the pressure film which separates the hermetically-closed reference pressure chamber from the air inside the tire. Also, the acceleration sensor has been provided within another hermetically-closed space which is different from the reference pressure chamber. As previously explained, since the pressure sensor and the acceleration sensor are provided within the hermetically-closed space, both the pressure and acceleration sensors can be protected from various sorts of chemical substances (remaining substances, soap, water, and the like in tire hardening process) which are present within tires. 
     Also, JP-A-6-347475 discloses such a structure that the acceleration sensor having the movable portion and the fixed portion, and the signal processing circuit for processing the output signal of the acceleration sensor have been stored in the package. 
     The technical idea disclosed in JP-A-2002-286571 has the following problems: That is, not only the structure of the sensor is made complex, but also the large number of structural members are required. Furthermore, since there are many joined portions, the air tight characteristic may be deteriorated. In addition, since these sensors must be separately manufactured, characteristic aspects of these sensors may be readily fluctuated. As a result, the technical idea disclosed in JP-A-2002-286571 has another problem that a large number of sensors having high precision can be hardly manufactured. On the other hand, the apparatus described in the Japanese magazine “DEMPA-SHINBUN HIGH TECHNOLOGY” has the following problem. That is, since the pressure sensor and the acceleration sensor are arrayed side by side to be integrated within the same die, the area occupied by these sensors becomes bulky. Furthermore, as explained in JP-A-6-347475, in the case where the sensor portion and the signal processing circuit are arranged on the same plane, there is another problem that the sensor area defined by combining the sensor unit with the signal processing circuit becomes bulky. 
     Thus, it is required for a physical quantity sensor to correctly sense physical quantity (i.e., dynamic amounts), and to have a structure by which an area occupied by a sensor is not made bulky. 
     SUMMARY OF THE INVENTION 
     In view of the above-described problem, it is an object of the present disclosure to provide a physical quantity sensor. 
     According to a first aspect of the present disclosure, a physical quantity sensor for detecting a physical quantity includes: a first substrate having a first physical quantity detection element; a second substrate having a second physical quantity detection element, wherein the second substrate contacts the first substrate; and an accommodation space disposed between the first substrate and the second substrate. The first physical quantity detection element is disposed in the accommodation space. 
     Since the first physical quantity detection element is accommodated in the accommodation space, the first physical quantity detection element is protected. 
     Alternatively, the first physical quantity detection element may face the second physical quantity detection element. In this case, the sensor is minimized, compared with a sensor in which a first element and a second element are arranged laterally. 
     Alternatively, the first substrate may further include a support layer, an insulation layer, a conductive layer and a lower wiring. The support layer, the insulation layer and the conductive layer are stacked in this order. The first physical quantity detection element is disposed in the conductive layer. The lower wiring is sandwiched between the insulation layer and the conductive layer. The first physical quantity detection element is coupled with the second substrate through the lower wiring. This lower wiring provides strong construction, compared with a wire bonding sensor. 
     According to a second aspect of the present disclosure, a physical quantity sensor for detecting a physical quantity includes: a first substrate having a first physical quantity detection element; and a second substrate having at least a processing circuit for processing an output signal from the first physical quantity detection element. The second substrate faces and contacts the first substrate so that an accommodation space is provided between the first substrate and the second substrate. 
     In this case, the dimensions of the sensor are minimized. 
     Alternatively, the processing circuit on the second substrate is opposite to the first substrate. In this case, the output signal from the processing circuit is easily retrieved. For example, a part of the protection film for covering an output wiring from the processing circuit is removed so that the output wiring is exposed from the protection film. Thus, the output signal from the processing circuit is easily retrieved. 
     Further, the second substrate may further include a concavity, which is disposed opposite to the processing circuit. The accommodation space is provided between the concavity and the first substrate. In this case, the accommodation space is provided without a spacer between the first and second substrates. Further, even when a spacer is formed between the first and second substrates, the accommodation space becomes larger than a case where the second substrate includes no concavity. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description made with reference to the accompanying drawings. In the drawings: 
         FIG. 1A  to  FIG. 1C  are diagrams for showing a composite type dynamic amount sensor according to a first embodiment,  FIG. 1A  is a plan view of the composite type dynamic amount sensor,  FIG. 1B  is a sectional view of the sensor taken along a line IB-IB of  FIG. 1A , and  FIG. 1C  is a sectional view thereof taken along a line IC-IC of  FIG. 1A ; 
         FIG. 2  is a sectional view for showing the sensor taken along a line II-II of  FIG. 1B  and  FIG. 1C ; 
         FIG. 3A  to  FIG. 3H  are diagrams for representing manufacturing steps of a piezoelectric type pressure sensor for indicating the first embodiment; 
         FIG. 4A  to  FIG. 4D  are diagrams for showing setting steps of fixed portion-purpose wiring lines employed in the first embodiment; 
         FIG. 5A  and  FIG. 5B  are diagrams for showing steps for manufacturing a fixed portion and a movable portion employed in the first embodiment, which correspond to  FIG. 1B  before being manufactured; 
         FIG. 6A  and  FIG. 6B  are diagrams for showing steps for manufacturing a fixed portion and a movable portion employed in the first embodiment, which correspond to  FIG. 1C  before being manufactured; 
         FIG. 7A  and  FIG. 7B  are diagrams for representing steps for stacking the piezoelectric type pressure sensor employed in the first embodiment on a capacitance type acceleration sensor, which correspond to  FIG. 1B  before being manufactured; 
         FIG. 8A  and  FIG. 8B  are diagrams for representing steps for stacking the piezoelectric type pressure sensor employed in the first embodiment on a capacitance type acceleration sensor, which correspond to  FIG. 1C  before being manufactured; 
         FIG. 9A  to  FIG. 9C  are diagrams for showing a composite type dynamic amount sensor indicated in a second embodiment,  FIG. 9A  is a sectional view of the sensor taken along a line IXA-IXA of  FIGS. 9B and 9C ,  FIG. 9B  is a sectional view thereof taken along a line IXB-IXB of  FIG. 9A , and  FIG. 9C  is a sectional view thereof taken along a line IXC-IXC of  FIG. 9A ; 
         FIG. 10A  to  FIG. 10C  are diagrams for showing a composite type dynamic amount sensor indicated in a third embodiment,  FIG. 10A  is a sectional view of the sensor taken along a line XA-XA of  FIGS. 10B and 10C ,  FIG. 10B  is a sectional view thereof taken along a line XB-XB of  FIG. 10A , and  FIG. 10C  is a sectional view thereof taken along a line XC-XC of  FIG. 10A ; 
         FIG. 11  is a diagram for indicating a composite type dynamic amount sensor which shows a fourth embodiment; 
         FIG. 12  is a diagram for showing a composite type dynamic amount sensor which indicates a fifth embodiment; 
         FIG. 13  is a diagram for indicating a composite type dynamic amount sensor which shows a sixth embodiment; 
         FIG. 14  is a diagram for showing a composite type dynamic amount sensor which indicates a seventh embodiment; 
         FIGS. 15A and 15B  are sectional views for indicating a composite type dynamic amount sensor which shows an eighth embodiment; 
         FIG. 16  is a sectional view for showing a composite type dynamic amount sensor which indicates a ninth embodiment; 
         FIG. 17  is a diagram for illustratively showing a wafer substrate on which a plurality of composite type dynamic amount sensors have been integrated, which is represented in a tenth embodiment; 
         FIG. 18  is a sectional view of the wafer substrate taken along a line XVIII-XVIII of  FIG. 17 ; 
         FIG. 19  is a diagram for showing a composite type dynamic amount sensor which indicates an eleventh embodiment; 
         FIG. 20A  to  FIG. 20C  represent steps for stacking a pressure sensor-sided wafer substrate on an acceleration sensor-sided wafer substrate, which are employed in the eleventh embodiment; 
         FIG. 21  is a plan view for indicating a stacked layer type dynamic amount sensor which represents a twelfth embodiment; 
         FIG. 22A  to  FIG. 22B  are diagrams of a stacked layer type dynamic amount sensor used in the twelfth embodiment,  FIG. 22A  is a sectional view of the sensor taken along a line XXIIA-XXIIA of  FIG. 21 , and  FIG. 22B  is a sectional view thereof taken along a line XXIIB-XXIIB of  FIG. 21 ; 
         FIG. 23A  to  FIG. 23F  are diagram for showing manufacturing steps of the stacked layer type dynamic amount sensor of  FIG. 22A , which is provided in the twelfth embodiment; 
         FIG. 24  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates a thirteenth embodiment; 
         FIG. 25A  to  FIG. 25B  are diagrams for indicating a stacked layer type dynamic amount sensor which shows a fourteenth embodiment; 
         FIG. 26  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates a fifteenth embodiment; 
         FIG. 27  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates a sixteenth embodiment; 
         FIG. 28A  to  FIG. 28E  are diagram for showing manufacturing steps of the stacked layer type dynamic amount sensor of  FIG. 27 , which is provided in the sixteenth embodiment; 
         FIG. 29  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates a seventeenth embodiment; 
         FIG. 30  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates an eighteenth embodiment; 
         FIG. 31  is a diagram for representing a stacked layer type dynamic amount sensor, which shows a nineteenth embodiment; 
         FIG. 32  is a diagram for showing a stacked layer type dynamic amount sensor, which indicates a twentieth embodiment; 
         FIG. 33A  to  FIG. 33B  are diagrams for indicating a stacked layer type dynamic amount sensor which shows a twenty-first embodiment; 
         FIG. 34  is a diagram for representing a dicing cut line when stacked layer type dynamic amount sensors are integrated so as to be manufactured, which shows the twenty-first embodiment; 
         FIG. 35  is a sectional view for showing a composite type dynamic amount sensor represented in a modification of embodiments; and 
         FIG. 36  shows a detailed diagram of the capacitance type acceleration sensor indicated in the first embodiment. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     First Embodiment 
     In a first embodiment, a description is made of a composite type dynamic amount sensor  1  by employing  FIG. 1A  to  FIG. 8B  and  FIG. 36 . 
       FIG. 1A  is a plan view of the composite type dynamic amount sensor  1 ;  FIG. 1B  is a sectional view of the sensor  1  taken along a line IB-IB of  FIG. 1A ; and  FIG. 1C  is a sectional view thereof taken along a line IC-IC of  FIG. 1A .  FIG. 2  is a sectional view for showing the sensor  1  taken along a line II-II of  FIG. 1B  and  FIG. 1C . 
     As indicated in  FIG. 1A  to  FIG. 1C  and  FIG. 2 , the composite type dynamic amount sensor  1  is constructed in such a way that a piezoelectric type pressure sensor  30  has been stacked on an N type silicon substrate  21  where a capacitance type acceleration sensor  20  has been formed in such a manner that the capacitance type acceleration sensor  20  is sealed. Also, the composite type dynamic amount sensor  1  has been mounted in the same package  50  for packaging a processing circuit  40  which processes an output of the composite type dynamic amount sensor  1 . 
     A first description is made of the piezoelectric type pressure sensor  30  with reference to  FIG. 1A  to  FIG. 1C . The piezoelectric type pressure sensor  30  is constituted by a diaphragm  31  having a concave shape, 4 pieces of piezoelectric resistors  32  in total, 4 pieces of pressure sensor-purpose wiring lines  33 , 4 pieces of pressure sensor-purpose pads  34 , and a surface protection film  35  for protecting surfaces of the pressure sensor-purpose wiring lines  33 . The diaphragm  31  has been formed by etching an N type silicon substrate  31   c . The piezoelectric resistors  32  are provided in a deforming portion  31   a  of the diaphragm  31 , and detect deformation of the deforming portion  31   a  along a direction perpendicular to an elongation direction of the deforming portion  31   a  so as to output the detected deformation. The pressure sensor-purpose wiring lines  33  transfer the outputs of the respective piezoelectric resistors  32 . The pressure sensor-purpose pads  34  have been connected to the respective pressure sensor-purpose wiring lines  33 . This deforming portion  31   a  constitutes a concave button plane of the diaphragm  31 , and if pressure is applied to the deforming portion  31   a , then the deforming portion  31   a  is deformed. While the deforming portion  31   a  has a structure surrounded by a ground frame  31   b , the diaphragm  31  has been constructed of the deforming portion  31   a  and the ground frame  31   b.    
     Four pieces of the piezoelectric resistors  32  are internally provided on a plane located opposite to the concave bottom plane of the deforming portion  31   a . Although not shown in the drawings, these piezoelectric resistors  32  have constituted a bridge circuit. The pressure sensor-purpose wiring lines  33 , the pressure sensor-purpose pads  34 , and the surface protection film  35  have been set on the plane on the side where the piezoelectric resistors  32  are internally provided. Then, the respective pressure sensor-purpose pads  34  are electrically connected to the respective processing circuit-purpose pads  41  coupled to the processing circuit  40  by employing a wire bonding. It should be understood that the diaphragm  31  has such a dimension capable of sealing the capacitance type acceleration sensor  20  within a sealing space formed by the diaphragm  31  and an outer frame  22  (will be explained later). Then, the above-described sealing space constitutes a reference pressure chamber  37  of the pressure sensor. 
     Next, the capacitance type acceleration sensor  20  will now be described with reference to  FIG. 1B ,  FIG. 1C , and  FIG. 2 . It should be understood that although the diagrams shown in  FIG. 1B ,  FIG. 1C  and  FIG. 2  exemplify a basic idea of the capacitance type acceleration sensor  20 , namely, a cantilever, a double camber beam and a multiple camber beam may be alternatively employed. One example of actual concrete structures is indicated in  FIG. 36 . 
     The capacitance type acceleration sensor  20  has been formed by a movable portion  23  and a fixed portion  24 , while an entire circumference of the capacitance type acceleration sensor  20  has been surrounded by an outer frame  22  by separating a gap. As will be described later with reference to  FIG. 5A ,  FIG. 5B ,  FIG. 6A  and  FIG. 6B , the outer frame  22 , the movable portion  23 , and the fixed portion  24  have been formed by etching the N type silicon substrate  21 . 
     As shown in  FIG. 2 , the movable portion  23  has been constituted by 2 pieces of movable electrodes  23   a , a weight  23   b  which joins these movable electrodes  23   a , a pillar  23   d  to which a movable portion-purpose wiring line  23   c  is connected, and a beam  23   e  which joins the weight  23   b  and the pillar  23   d . As indicated in  FIG. 1B , the movable electrode  23   a  has a gap between a supporting substrate  25  and the own movable electrode  23   a . Similarly to the movable electrode  23   a , the weight  23   b  and the beam  23   e  have a gap between the supporting substrate  25  and the weight  23   b  and the beam  23   e  although not shown in the figure. On the other hand, the pillar  23   d  has been fixed on an insulating film  26  stacked on the supporting substrate  25 . Since the capacitance type acceleration sensor  20  is equipped with such a structure, the beam  23   e  causes the pillar  23   d  to be distorted along a direction “IIC” of  FIG. 2 , so that both the weight  23   b  and the movable electrode  23   a  are displaced along the direction “IIC.” 
     Also, the movable portion-purpose wiring line  23   c  connected to the pillar  23   d  has joined the movable portion-purpose pad  23   f  provided on the outer frame  22  to the pillar  23   d  under bridging condition. Then, while a predetermined voltage (or predetermined current) is applied to the movable portion-purpose pad  23   f , the same voltage (or same current) as that of the movable portion-purpose pad  23   f  is applied also to the movable electrode  23   a  via the movable portion-purpose wiring line  23   c.    
     On the other hand, as shown in  FIG. 2 , the fixed portion  24  is made of 2 pieces of fixed electrodes  24   a , a coupling portion  24   b , and a fixed portion-purpose wiring line  24   c . These two fixed electrodes  24   a  are located opposite to the above-described respective movable electrodes  23   a . The coupling portion  24   b  joins these fixed electrodes  24   a . The two fixed electrodes  24   a  and the coupling portion  24   b  have been constructed on the insulating film  26 . The fixed portion-purpose wiring line  24   c  has joined the fixed portion-purpose pad  24   d  provided on the outer frame  22  to the coupling portion  24   b  under bridging condition. Then, while a predetermined voltage (or predetermined current) is applied to the fixed portion-purpose pad  24   d , the same voltage (or same current) as that of the fixed portion-purpose pad  24   d  is applied also to the fixed electrode  24   a  via the fixed portion-purpose wiring line  24   c.    
     Since such a structure is provided, if acceleration is applied to the capacitance type acceleration sensor  20  along the direction “IIC”, then the movable electrode  23   a  is displaced along the direction “IIC” to approach the fixed electrode  24   a , while the pillar  23   d  of the movable portion  23  is set to a fulcrum. At this time, an electrostatic capacitance between the movable electrode  23   a  and the fixed electrode  24   a  is changed with respect to an electrostatic capacitance of such a condition that acceleration is not applied. Concretely speaking, in such a case where acceleration is applied along a direction “IIC 1 ” of  FIG. 2 , the fixed electrode  24   a  is separated from the movable electrode  23   a , so that the electrostatic capacitance is decreased. Conversely, in such a case where acceleration is applied along a direction “IIC 2 ” of  FIG. 2 , the fixed electrode  24   a  approaches to the movable electrode  23   a , so that the electrostatic capacitance is increased. In other words, magnitudes of the applied acceleration may correspond to the increase/decrease of the electrostatic capacitances. 
     Then, a change in the electrostatic capacitances is detected by comparing a voltage (or current) transferred to the movable portion-purpose pad  23   f  via the movable portion-purpose wiring line  23   c  which joins the movable portion  23  and the outer frame  22  with another voltage (or current) transferred to the fixed portion-purpose pad  24   d  via the fixed portion-purpose wiring line  24   c  which joins the fixed portion  24  and the outer frame  22  by the processing circuit  40 . Concretely speaking, as shown in  FIG. 1A ,  FIG. 1C , and  FIG. 2 , while the movable portion-purpose pad  23   f  and the fixed portion-purpose  24   d  are connected to the corresponding processing circuit-purpose pads  41  by the wire bonding manner, the voltages (currents) which are inputted from the respective processing circuit-purpose pads  41  are compared with each other by the processing circuit  40  so as to detect the applied acceleration. 
     Also, a frame “IID” indicated in  FIG. 2  shows an outer fence of the ground frame  31   b  of the diaphragm  31  in such a case where the piezoelectric type pressure sensor  30  is stacked on the outer frame  22  which surrounds the capacitance type acceleration sensor  20 . As represented in  FIG. 2 , both the movable portion  23  and the fixed portion  24  have been sealed inside a sealing space which is formed by the outer frame  22  and the diaphragm  31 . 
     It should be noted that in order to prevent from being short-circuited between the movable portion-purpose wiring line  23   c  and the fixed portion-purpose wiring line  24   c , the movable portion-purpose wiring line  23   c  and the fixed portion-purpose wiring line  24   c  have been set via an SiN film  27  on the outer frame  22 , and have been covered by the surface protection film  28  except for such portions which will constitute the movable portion-purpose pad  23   f  and the fixed portion-purpose pad  24   d.    
     Referring now to  FIG. 3A  to  FIG. 3H , a description is made of steps for manufacturing the piezoelectric type pressure sensor  30 . In the beginning, as indicated in  FIG. 3A , an N type silicon substrate  31   c  is prepared, and then, an insulating film (SiO 2 )  31   d  is formed on both planes of this N type silicon substrate  31   c . It is desirable that a thickness of the N type silicon substrate  31   c  is approximately 400 μm. 
     Next, a photo-resist mask is formed on the insulating film (SiO 2 )  31   d  of  FIG. 3A , and an etching process is further carried out so as to remove a portion of the insulating film  31   d . Then, in the N type silicon substrate  31   c , an impurity is diffused from a vapor phase in a portion from which the insulating film  31   d  has been removed and which has been exposed. Alternatively, ions of P type boron may be implanted so as to form a P type region containing the piezoelectric resistors  32  as indicated in  FIG. 3B , while a depth of this P type region is made in approximately 0.5 μm to 1.0 μm. 
     Next, after the photo-resist mask and the insulating film  31   d  formed on the plane of the N type silicon substrate  31   c  on the piezoelectric resistor forming side are once removed, an insulating film  36  is once formed on one plane, and both a photo-resist mask is formed and an etching process is carried out so as to form a contact hole  31   e  as an oxide film, as shown in  FIG. 3C . This contact hole  31   e  is provided at such a position that this contact hole  31   e  becomes the ground frame  31   b  when the piezoelectric type pressure sensor  30  is accomplished. 
     Then, as shown in  FIG. 3D , both a pressure sensor-purpose wiring line  33  and a pressure sensor-purpose pad  34  are provided in and on the contact hole  31   e  and the insulating film  36  by vapor-depositing either aluminum or poly-silicon. 
     Next, as shown in  FIG. 3E , an SiN film which constitutes the surface protection film  35  is provided on the side where the pressure sensor-purpose wiring line  33  and the pressure sensor-purpose pad  34  of  FIG. 3D  have been provided. 
     Then, as shown in  FIG. 3F , the surface protection film  35  of such a portion is removed which constitutes the pressure sensor-purpose pad  34  when the piezoelectric type pressure sensor  30  is accomplished, in order that either aluminum or poly-silicon of the under layer is exposed. 
     Next, as shown in  FIG. 3G , in the N type silicon substrate  31   c , a portion of the insulating film  36  is removed which has been formed on the plane located opposite to the plane on the piezoelectric resistor forming side. The region of the insulating film  36  to be removed corresponds to such a portion which becomes a concave portion when a diaphragm is completed, namely a portion which constitutes the deforming portion  31   a.    
     Finally, as indicated in  FIG. 3H , since the region from which the insulating film  31   d  has been removed in  FIG. 3G  is etched, a portion of the N type silicon substrate  31  is removed so as to form the concave portion. Since the above-described manufacturing steps are carried out, the piezoelectric type pressure sensor  30  is accomplished. 
     Next, a description is made of steps for manufacturing the capacitance type acceleration sensor  20  with reference to  FIG. 4A  to  FIG. 4D ,  FIG. 5A  to  FIG. 5B , and  FIG. 6A  to  FIG. 6B . 
     Referring now to  FIG. 4A  to  FIG. 4D , a description is made of steps for manufacturing the fixed portion-purpose wiring line  24   c.    
     In the beginning, a high concentration N type silicon substrate  21  is prepared, the resistivity of which is 0.1 to 0.001 Ω·cm, and then, an insulating film  26  is formed on one plane of the N type silicon substrate  21  by executing a thermal oxidation. Then, another silicon substrate (supporting substrate  25 ) is directly joined to the N type silicon substrate  21  where the insulating film  26  has been formed on one plane thereof in a furnace whose temperature is approximately 1000° C., so that a structure shown in  FIG. 4A  is obtained. 
     Further, a SiN film  27  (insulating film) is formed on the structure of  FIG. 4A , and a photo-resist etching process is carried out so as to form a contact hole  27   a  in a portion of this SiN film  27 . It should also be noted that this contact hole  27   a  is formed in such a portion which will become a fixed portion  24  when the capacitance type acceleration sensor  20  is accomplished, and to which the fixed portion-purpose wiring line  24   c  is connected. Then, an ion implantation is carried out via the contact hole  27   a  so as to form an N +  region  24   e , so that such a structure as indicated in  FIG. 4B  is obtained. It should also be understood that when concentration of a high concentration N type silicon substrate is sufficiently high, an ion implantation may be omitted. 
     Next, either aluminum or poly-silicon is vapor-deposited on the contact hole  27   a  and the SiN film  27  of  FIG. 4B  in order to set either a fixed portion-purpose wiring line  24   c  or a fixed portion-purpose pad  24   d  as indicated in  FIG. 4C . At this time, the N +  region  24   e  is being ohmic-contacted to the fixed portion-purpose wiring line  24   c.    
     Next, an SiN film which will constitute the surface protection film  28  is formed on the side where the fixed portion-purpose wiring line  24   c  and the fixed portion-purpose pad  24   d  have been formed, and as shown in  FIG. 4D , the surface protection film  28  of such a portion which will constitute the fixed portion-purpose pad  24   d  when the fixed portion-purpose wiring line  24   c  is accomplished is removed. 
     Since the above-described manufacturing steps are carried out, the fixed portion-purpose wiring line  24   c  is completed. It should also be noted that since the movable portion-purpose wiring line  23   c  may be manufactured by the substantially same steps as those of the fixed portion-purpose wiring line  24   c , an explanation thereof is omitted. 
     Subsequently, a method for manufacturing a fixed portion  24  and a movable portion  23  will now be described with reference to  FIG. 5A ,  FIG. 5B , and  FIG. 6A ,  FIG. 6B . It should also be noted that  FIG. 5A  and  FIG. 5B  correspond to  FIG. 1B  before these fixed and movable portions  24  and  23  are manufactured, and also,  FIG. 6A  and  FIG. 6B  correspond to  FIG. 1C  before these fixed and movable portions  24  and  23  are manufactured. 
     Firstly, the N type silicon substrate  21  on which the fixed portion-purpose wiring line  24   c  of  FIG. 4D  has been accomplished is prepared, and then, as indicated in  FIG. 5A  and  FIG. 6A , a portion of the surface protection films  27 , and  28  of the side where the fixed portion-purpose wiring line  24   c  has been formed is removed. The portion of the surface protection films to be removed corresponds to such a portion which will not constitute the outer frame  22 , the movable portion  23 , and fixed portion  24  when the fixed and movable portions  24  and  23  are completed. 
     Next, as shown in  FIG. 5B  and  FIG. 6B , the N type silicon substrate  21  at such a portion from which the surface protection films  27  and  28  have been removed is etched in a sacrifice layer etching manner, while the insulating film  26  is employed as a sacrifice layer, in order to form the fixed portion  24 , the movable portion  23 , and the outer frame  22 . The fixed portion  24  has been fixed on the insulating film  26 . Only the pillar  23   d  of the movable portion  23  has been fixed on the insulating film  26 . The outer frame  22  surrounds the movable portion  23  and the fixed portion  24 . As a result, such a capacitance type acceleration sensor  20  shown in  FIG. 2  is accomplished. 
     Referring now to  FIG. 7A ,  FIG. 7B ,  FIG. 8A , and  FIG. 8B , a description is made of steps for stacking the piezoelectric type pressure sensor  30  on the outer frame  22  which surrounds the capacitance type acceleration sensor  20 . It should be understood that  FIG. 7A  and  FIG. 7B  correspond to  FIG. 1B  before the manufacture thereof, and  FIG. 8A  and  FIG. 8B  correspond to  FIG. 1   c  before the manufacture thereof. 
     As represented in  FIG. 7A  and  FIG. 8A , low melting point glass  60  having an insulating characteristic and which constitutes an adhesive agent is coated on an edge plane of the deforming portion  31   a  of the ground frame  31   b , which is located on the side of the elongation direction. 
     Next, as shown in  FIG. 7B  and  FIG. 8B , the low melting point glass  60  coated on the ground frame  31   b  is adhered to the outer frame  22  so as to be fixed thereon under vacuum condition. As a result, a sealing space (namely, reference pressure chamber  37 ) is produced by the diaphragm  31  of the piezoelectric type pressure sensor  30 , the outer frame  22 , and the insulating film  26 , so that both the fixed portion  24  and the movable portion  23  are sealed with this sealing space. 
     As previously described, the steps for manufacturing the piezoelectric type pressure sensor  30  shown in  FIG. 3A  to  FIG. 3H ; the steps for manufacturing the capacitance type acceleration sensor  20  represented in  FIG. 4A  to  FIG. 4D ,  FIG. 5A  to  FIG. 5B , and  FIG. 6A  to  FIG. 6B ; and also the stacking steps shown in  FIG. 7A  to  FIG. 7B  and  FIG. 8A  to  FIG. 8B  are sequentially carried out, so that the composite type dynamic amount sensor  1  shown in  FIG. 1A  to  FIG. 1C  and  FIG. 2  may be constructed. 
     Subsequently, a description is made of effects of the above-described composite type dynamic amount sensor  1 . 
     As to a first effect, since the capacitance type acceleration sensor  20  is stacked on the piezoelectric type pressure sensor  30 , the occupied area of the sensors  20  and the  30  can be reduced, as compared with the conventional structure that the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30  are separately provided. 
     A description is made of a second effect. In the conventional capacitance type acceleration sensor, in order to avoid that contaminations (particles etc.) are entered to the movable portion, the cap made of glass and the like have been employed so as to seal the movable portion. However, in the case of the composite type dynamic amount sensor  1  of the first embodiment, the movable portion  23  is sealed by the diaphragm  31  of the piezoelectric type pressure sensor  30 . As previously explained, the movable portion  23  can be sealed without separately employing the cap. 
     A third effect is described. As previously described, the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30  have been separately manufactured, and have been stacked on each other, as indicated in  FIG. 7A ,  FIG. 7B ,  FIG. 8A , and  FIG. 8B . As a result, the capacitance type acceleration sensor  20  and the piezoelectric pressure sensor  30  may be employed which are substantially identical to the conventional acceleration and pressure sensors. In other words, the conventional detecting performance can be maintained and these acceleration and pressure sensors  20  and  30  can be stacked on each other, so that the structure thereof need not be made complex, as compared with the conventional sensors. Also, since the joining portion constitutes the joining portion between the ground frame  31   b  of the diaphragm  31  and the outer frame  22 , the air tight characteristic of the joining portion is high. 
     Also, in the first embodiment, such a case that the reference pressure chamber  37  becomes vacuum has been exemplified. In the case where the reference pressure chamber  37  is not vacuum, such an effect capable of suppressing air dumping may be achieved. Concretely speaking, since the deformation direction of the deforming portion  31   a  of the diaphragm  31  is directed along such a direction perpendicular to the movable direction of the movable portion  23 , even in such a case where the deforming portion  31   a  is deformed and thus the internal pressure of the reference pressure chamber  37  is increased, the movable portion  23  can be hardly depressed against the fixed portion  24  by receiving this internal pressure. In other words, the internal pressure can hardly give an adverse influence to the distance between the movable portion  23  and the fixed portion  24 . As a result, the acceleration can be detected in higher precision. 
     It should also be noted that it is desirable that in order to suppress the air dumping, the deformation direction of the deforming portion  31   a  is located perpendicular to the movable direction of the movable portion  23 . However, even when the deformation direction is made coincident with the movable direction, it is possible to suppress the air dumping, although the detection precision is slightly lowered. 
     Second Embodiment 
     Referring now to  FIG. 9A  to  FIG. 9C , a description is made of a composite type dynamic amount sensor  1  according to a second embodiment. This embodiment is different from the above-described first embodiment as to the following technical point: That is, a piezoelectric type pressure sensor  30  is adhered to a capacitance type acceleration sensor  20  by employing solder  91  and  92 , and an air tight characteristic of a reference pressure chamber  37  is secured by an air tight annular ring  93 . It should also be noted that the same reference numerals shown in the first embodiment will be employed as those for denoting the same, or similar structures indicated in the second embodiment, and explanations in this embodiment are omitted. 
       FIG. 9A  is a sectional view for indicating the composite type dynamic amount sensor  1  according to the second embodiment, namely such a sectional view, taken along a line IXA-IXA of  FIG. 9B  and  FIG. 9C . Also,  FIG. 9B  corresponds to  FIG. 1B  in the first embodiment, and  FIG. 9C  corresponds to  FIG. 1C  in the first embodiment. 
     As shown in  FIG. 9B  and  FIG. 9C , the capacitance type acceleration sensor  20  has been fixed to the piezoelectric type pressure sensor  30  via conducting-purpose solder  91 , coupling-purpose solder  92 , and the air tight annular ring  93 . The air tight annular ring  93  is made of rubber (namely, elastic member) having an annular shape, and is provided in a region “IXE” of  FIG. 9A . Alternatively, the air tight annular ring  93  may be formed by solder similar to the above-described conducting-purpose solder  91  and coupling-purpose solder  92 . Since air tight connecting and sealing of these sensor  20  and  30  are realized by the solder, the resulting air tight characteristic may be further improved. Then, lumps of the conducting-purpose solder  91  and the coupling-purpose solder  92  are present within the annular shape of this air tight annular ring  93 . Both the conducting-purpose solder  91  and the coupling-purpose solder  92  may couple the capacitance type acceleration sensor  20  to the piezoelectric type pressure sensor  30 , and also, may depress the air tight annular ring  93  between the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30  so as to sandwich the air tight annular ring  93  so as to maintain the air tight characteristic of the reference pressure chamber  37 . 
     Also, in the first embodiment, the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  have been provided by employing aluminum, and the like. In this embodiment, as represented in  FIG. 9A  to  FIG. 9C , a portion of the outer frame  22  is insulating-processed so as to form the fixed portion-purpose wiring line  24   c , the movable portion-purpose wiring line  23   c , and a pressure sensor-purpose wiring line  94 . Concretely speaking, as indicated in  FIG. 9A , the pressure sensor-purpose wiring line  94  provided at a portion of the outer frame  22  in order to transfer an output signal of the piezoelectric type pressure sensor  30  has been insulated from the outer frame  22  by employing an insulating film  95  such as SiO 2 . Furthermore, as indicated in  FIG. 9B , this pressure sensor-purpose wiring line  94  is electrically conducted via the conducting-purpose solder  91  to the pressure sensor-purpose wiring line  33  provided inside the piezoelectric type pressure sensor  30 . In other words, the conducting-purpose solder  91  may achieve two actions: That is, the piezoelectric type pressure sensor  30  is coupled to the capacitance type acceleration sensor  20  under a condition that the air tight annual ring  93  is pushed into; and the output signals of the piezoelectric resistors  32  are transferred to the pressure sensor-purpose wiring line  94 . In the pressure sensor-purpose wiring line  94 , a terminal portion thereof on the side where the conducting-purpose solder  91  is not set becomes a pressure sensor-purpose pad  34  which is wire-bonded to the processing circuit-purpose pad  41  of the processing circuit  40 . 
     On the other hand, as shown in  FIG. 9A , the fixed portion-purpose wiring line  24   c  constitutes a portion of a coupling portion  24   b  of the fixed portion  24 , and has been electrically insulated from the outer frame  22  by employing the insulating film  95  such as SiO 2 . It should also be understood that as indicated in  FIG. 9A  and  FIG. 9C , an insulating film  27  has been provided on an entire plane of the fixed portion-purpose wiring line  24   c  except for a terminal portion of the edge plane on the side of the piezoelectric type pressure sensor  30 . Then, in the terminal portion of the fixed portion-purpose wiring line  24   c , such a portion where the insulating film  27  is not provided constitutes the fixed portion-purpose pad  24   d , while this fixed portion-purpose pad  24   d  has been connected to the processing circuit purpose pad  41  by a wire bonding manner. 
     Also, as indicated in  FIG. 9A , the movable portion-purpose wiring line  23   c  elongated to the pillar  23   d  in an integral body has a substantially same structure as that of the fixed portion-purpose wiring line  24   c . Under such a condition that this movable portion-purpose wiring line  23   c  is insulated from the outer frame  22 , a terminal portion of the movable portion-purpose wiring line  23   c  is exposed and constitutes the movable portion-purpose pad  23   f.    
     As previously described, both the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  have been electrically insulated from the outer frame  22  and the piezoelectric type pressure sensor  30 , and the pressure sensor-purpose wiring line  94  has been electrically insulated from the capacitance type acceleration sensor  20 . 
     Although not shown in the drawing, the coupling-purpose solder  92  has coupled a coupling pad provided in the piezoelectric type pressure sensor  30  to another coupling-purpose pad provided on the outer frame  22 . The first-mentioned coupling-purpose pad has been provided in order not to give an adverse influence to an output signal of the piezoelectric type pressure sensor  30 , whereas the last-mentioned coupling-purpose pad has been provided in order not to give an adverse influence to an output result obtained from the capacitance type acceleration sensor  20 . 
     Since the above-described structure is employed, the pressure sensor-purpose pad  34 , the fixed portion-purpose pad  24   d , and the movable portion-purpose pad  23   f  may be provided to be closed to each other. Furthermore, similar to the first embodiment, the piezoelectric resistors  32  and the pressure sensor-purpose wiring line  33  are sealed in the sealing space of the reference pressure chamber  37 , so that both the piezoelectric resistor  32  and the pressure sensor-purpose wiring line  33  can be protected from particles, and the like. 
     In this embodiment, although the conducting-purpose solder  91  and the coupling-purpose solder  92  are set within the annular shape of the air tight ring  93 , the setting places of the conducting-purpose solder  91  and the coupling-purpose solder  92  may be alternatively located outside the annular shape of the air tight ring  93 . Furthermore, a total setting number as to the conducting-purpose solder  91  and the coupling-purpose solder  92  may not be alternatively selected to be 6 portions as indicated in  FIG. 9A . It is desirable as the setting places of the solder  91  and  92 , the setting intervals of the solder become equal to each other, and/or the solder  91  and  92  is set in the vicinity of the corners of the air tight ring  93 . However, if the air tight ring  93  can seal the reference pressure chamber  37  constituted by the diaphragm  31  and the outer frame  22 , then there is no limitation in the setting numbers and the setting places of the solder. 
     Also, since the shape of the air tight ring  93  may be merely made in an annular shape, such a substantially rectangular shape as shown in  FIG. 9A  need not be employed as this shape of the air tight ring  93 . Alternatively, a toroidal shape may be employed. 
     Third Embodiment 
     Referring now to  FIG. 10A  to  FIG. 10C , a description is made of a composite type dynamic amount sensor  1  according to a third embodiment. This embodiment is different from the above-described second embodiment as to the following technical point: That is, the air tight characteristic of the reference pressure chamber  37  is secured by employing an NCF (Non-Conductive Film)  101 . It should also be noted that the same reference numerals shown in the first embodiment, or the second embodiment will be employed as those for denoting the same, or similar structures indicated in the third embodiment, and explanations in this embodiment are omitted. 
       FIG. 10A  is a sectional view for indicating the composite type dynamic amount sensor  1  according to the third embodiment, namely such a sectional view, taken along a line XA-XA of  FIG. 10B  and  FIG. 10C . Also,  FIG. 10B  corresponds to  FIG. 1B  in the first embodiment, and  FIG. 10C  corresponds to  FIG. 1C  in the first embodiment. 
     As shown in  FIG. 10B  and  FIG. 10C , the capacitance type acceleration sensor  20  has been fixed to the piezoelectric type pressure sensor  30  via the conducting-purpose solder  91 , the coupling-purpose solder  92 , and the NCF  101 . This NCF  101  is made of a resin film having a non-conductive characteristic, and the NCF  101  may be joined by way of a crimping manner, a thermal crimping manner, or an adhesive manner. Alternatively, the NCF  101  may be manufactured by a screen printing method, or an ink jet printing method. Since the material of the NCF  101  is made of a resin having an electric insulating characteristic, for example, an epoxy resin, or a polyimide resin, this resin material is softened by receiving heat. Then, heat is continuously applied to this resin material under softened condition, so that the softened resin material may be hardened. 
     As indicated in a region “XF” of  FIG. 10A , this NCF  101  has an annular shape which is located in the vicinity of an inner diameter of the outer frame  22 , and which surrounds a region containing a terminal portion of the pressure sensor-purpose wiring line  94  on the side of the reference pressure chamber  37 . Then, lumps of the conducting-purpose solder  91  and the coupling-purpose solder  92  are present within the NCF  101 . 
     Next, a description is made of steps for stacking the capacitance type acceleration sensor  20  on the piezoelectric type pressure sensor  30  via the NCF  101 . 
     At a time instant when the piezoelectric type pressure sensor  30  is completed, for example, in  FIG. 3H , the above-described conducting-purpose solder  91  is provided as a bump on an exposed portion (namely, pressure sensor-purpose pad in the first embodiment) of the pressure sensor-purpose wiring line  33 . If the pressure sensor-purpose wiring line  33  is made of an aluminum material, Ti, Ni, Au are stacked in this order on the pressure sensor-purpose wiring line  33 , and then, the conducting-purpose solder  91  is provided on this Au. Similarly, the coupling-purpose solder  92  is provided within the region “XF” (namely, setting scheduled region of NCF  101 ). Thereafter, the NCF  101  is set by employing a crimping method, or a printing method within the region “XF” in such a manner that the NCF  101  seals the conducting-purpose solder  91  and the coupling-purpose solder  92 . 
     On the other hand, after the fixed portion  24  and the movable portion  23  which constitute the capacitance type acceleration sensor  20 , the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  which have been insulated by the insulating film  95  such as SiO 2  from the outer frame  22 , and also, the pressure sensor-purpose wiring line  94  have been completed, the conducting-purpose solder  91  is provided as a bump on the pressure sensor-purpose pad  34 . Similarly, the coupling-purpose solder  92  is set within the region “XF” (setting scheduled region of NCF  101 ). 
     As previously explained, after the NCF  101 , the conducting-purpose solder  91 , and also the coupling-purpose solder  92  have been set to both the piezoelectric type pressure sensor  30  and the capacitance type acceleration sensor  20 , the piezoelectric type pressure sensor  30  is located opposite to the capacitance type acceleration sensor  20 , and the NCF  101  is heated at a temperature of approximately 150° C. A positioning operation is carried out in such a manner that the conducting-purpose solder  91  and the coupling-purpose solder  92  of the piezoelectric type pressure sensor  30  are located opposite to the corresponding conducting-purpose solder  91  and the corresponding coupling-purpose solder  92  of the capacitance type acceleration sensor  20 , and then, the piezoelectric type pressure sensor  30  is depressed against the capacitance type acceleration sensor  20 . As a result, the NCF  101  is broken through by the conducting-purpose solder  91  and the coupling-purpose solder  92  on the side of the capacitance type acceleration sensor  20 , so that the both the conducting-purpose solder  91  and the coupling-purpose solder  92  on the side of the capacitance type acceleration sensor  20  are contacted to the corresponding conducting-purpose solder  91  and the corresponding coupling-purpose solder  92  of the piezoelectric type pressure sensor  30 . After these solders contact, ultrasonic joining is performed with respect to the respective conducting-purpose solder  91  and the respective coupling-purpose solder  92  so as to be electrically connected to each other. 
     With employment of the above-described structure, similar operation and effects to those of the second embodiment can be achieved in the third embodiment. 
     Fourth Embodiment 
     Referring now to  FIG. 11 , a description is made of a composite type dynamic amount sensor  1  according to a fourth embodiment. The fourth embodiment has the below-mentioned technical different points from those of the first embodiment. That is, in this embodiment, while a penetration electrode  111  is provided on a diaphragm  31 , a signal of a capacitance type acceleration sensor  20  can be derived from the diaphragm  31  through the penetration electrode  111 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the fourth embodiment, and descriptions thereof are omitted. 
       FIG. 11  is a sectional view for showing the composite type dynamic amount sensor  1  according to the fourth embodiment, and corresponds to  FIG. 1C  in the first embodiment. 
     As indicated in  FIG. 11 , the penetration electrode  111  and an insulating film  112  have been formed on the ground frame  31   b  of the diaphragm  31 . The penetration electrode  111  is located parallel to the deforming direction of the deforming portion  31   a . The insulating film  112  insulates the penetration electrode  111  from the diaphragm  31 . It should also be noted that the place where the penetration electrode  111  is provided is such a place that when the capacitance type acceleration sensor  20  is adhered to the piezoelectric type pressure sensor  30 , this place is located opposite to both the exposed portion (namely, fixed portion-purpose pad of the first embodiment) of the fixed portion-purpose wiring line  24   c , and the exposed portion (namely, movable portion-purpose pad of the first embodiment) of the movable portion-purpose wiring line  23   c.    
     Then, the penetration electrode  111  has been connected to the exposed portion of the fixed portion-purpose wiring line  24   c , or the exposed portion of the movable portion-purpose wiring line  23   c  by the conducting-purpose solder  91 . Furthermore, in addition to the above-described conducting-purpose solder  91 , the coupling-purpose solder  92  employed in the above-explained third embodiment has been provided at such a portion between the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30 , which gives a less electrically adverse influence. 
     Also, similar to the third embodiment, the NCF  101  having the annular shape has been provided between the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30  so as to maintain the air tight characteristic of the reference pressure chamber  37 . Alternatively, as shown in the second embodiment, a ring for the air tight sealing may be formed by a ring of solder on either the outer side or the inner side of the penetration electrode  111 . 
     A terminal edge of the penetration electrode  111 , which is not connected to either the fixed portion-purpose wiring line  24   c  or the movable portion-purpose wiring line  23   c , has been constituted as either the fixed portion-purpose pad  24   d  or the movable portion-purpose pad  23   f , which is wire-bonded to the processing circuit-purpose pad  41  of the processing circuit  40 . It should also be noted that these pads  23   f  and  24   d  may also function as the terminal portion of the penetration electrode  111  as shown in  FIG. 11 , or may be formed as an enlarged portion which is manufactured by vapor-depositing aluminum on the terminal portion in order to be easily wire-bonded. 
     In this case, a step for forming this penetration electrode  111  is constructed of the following 3 forming steps: a step in which while the ground frame  31   b  is masked, a reactive ion etching process is carried out so as to form a penetration hole; a step in which this penetration hole is further thermally oxidized in order to form an insulating film  112 ; and a step in which poly-silicon is grown on the penetration hole reduced by the thermal oxidation, so that the penetration electrode  111  is accomplished. Alternatively, instead of this poly-silicon, such a metal as tungsten, copper, aluminum may be employed. 
     It should also be understood that the structure of the piezoelectric type pressure sensor  30  is manufactured in such a manner that 2 pieces of the penetration electrodes  111 , and the insulating film  112  for insulating these penetration electrodes  111  are additionally provided in the piezoelectric type pressure sensor  30  of the first embodiment, whereas positions of the pressure sensor-purpose wiring line  33  and the pressure sensor-purpose pad  34  are similar to those of the first embodiment. 
     As previously described, while the penetration electrodes  111  are provided on the diaphragm  31 , the penetration electrodes  111 , the fixed portion-purpose wiring line  24   c , and the movable portion-purpose wiring line  23   c  are electrically connected to each other. As a result, as represented in  FIG. 11 , the setting positions as to the fixed portion-purpose pad  24   d , and the movable portion-purpose pad (not shown) can be located on the diaphragm  31 . As a consequently, while the operation and effects similar to those of the first embodiment may be achieved, the pressure sensor-purpose pad  34 , the fixed portion-purpose pad  24   d , and the movable portion-purpose pad can be formed on the diaphragm  31 . In addition, if gold balls, solder balls, and the like are formed on the pad portions over this pressure sensor, then connection pads for so-called “ball bonding” may be alternatively formed. 
     Fifth Embodiment 
     Referring now to  FIG. 12 , a description is made of a composite type dynamic amount sensor  1  according to a fifth embodiment. The fifth embodiment has the below-mentioned technical different points from those of the fourth embodiment. That is, in this embodiment, while a fixed portion-purpose wiring line  24   c  and a movable portion-purpose wiring line  23   c  have been provided on an insulating film  26 , the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  have been connected via a poly-silicon film  121  to the penetration electrodes  111 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the fifth embodiment, and descriptions thereof are omitted. 
       FIG. 12  is a sectional view for showing the composite type dynamic amount sensor  1  according to the fifth embodiment, and corresponds to  FIG. 1C  in the first embodiment. 
     As indicated in  FIG. 12 , the coupling portion  24   b  of the fixed portion  24  has been connected to the fixed portion-purpose wiring line  24   c  on the side of the supporting substrate  25 . Then, a surface except for the coupling portion  24   b  of the fixed portion  24  has been covered by the insulating film  27  such as SiO 2 . Also, the fixed portion-purpose wiring line  24   c  has been electrically connected to the poly-silicon film  121  provided on the outer frame  22 , and has been insulated from the outer frame  22  and the movable portion  23  by an insulating film  122 . Also, this poly-silicon film  121  has been insulated from the outer frame  22  by the insulating film  122 . Similar to the above-described fourth embodiment, the poly-silicon film  121  has been connected by the conducting-purpose solder  91  to the penetration electrodes  111  formed on the ground frame  31   b  of the diaphragm  31 . The fixed portion-purpose pad  24   d  has been provided on a terminal portion of this penetration electrode  111 , which is not connected to the poly-silicon film  121 . Then, this fixed portion-purpose pad  24   d  is connected to the processing circuit-purpose pad  41  of the processing circuit  40  by a wire bonding. 
     Also, with respect to a movable portion (not shown), a supporting substrate side of the pillar has been connected to the movable portion-purpose wiring line  23   c , and furthermore, this movable portion-purpose wiring line  23   c  has been electrically connected to the poly-silicon film  121  formed on the outer frame  22 . This movable portion-purpose wiring line  23   c  has been insulated from the outer frame  22  and the fixed portion  24  by the insulating film  122 . Further, the poly-silicon film  121  has been connected by the conducting-purpose solder  91  to the penetration electrodes  111  formed on the ground frame  31   b  of the diaphragm  31 . The movable portion-purpose pad has been provided on a terminal portion of this penetration electrode  111 . Then, this movable portion-purpose pad is connected to the processing circuit-purpose pad  41  of the processing circuit  40  by a wire bonding. Also, the movable electrode, the beam, and the weight have gaps with respect to the insulating film  26 , and can be displaced along the elongation direction of the supporting substrate  25  similar to the first embodiment. 
     It should also be noted that as to a step for forming both the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  between the fixed portion  24  and the movable portion  23 , and the supporting substrate  25 , the manufacturing method described in JP-A-H06-123628 may be employed. With employment of the above-described structure, similar operation and effects to those of the fourth embodiment may be achieved. In addition, since a penetration electrode is formed on the supporting substrate  25  of the acceleration sensor  20  by the same method as that described above, an electrode may be derived from the lower portion of the supporting substrate  25  of the acceleration sensor  20 . 
     Sixth Embodiment 
     Referring now to  FIG. 13 , a description is made of a composite type dynamic amount sensor  1  according to a sixth embodiment. The sixth embodiment has the below-mentioned technical different points from those of the third embodiment. That is, in this embodiment, a capacitance type pressure sensor  130  is stacked on the capacitance Type acceleration sensor  20 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the sixth embodiment, and descriptions thereof are omitted. 
       FIG. 13  is a sectional view for showing the composite type dynamic amount sensor  1  according to the sixth embodiment, and corresponds to  FIG. 1B  in the first embodiment. 
     As represented in  FIG. 13 , the capacitance type pressure sensor  130  is constituted by a base portion  131 , a lower electrode  132 , an insulating film  134 , and a lower electrode pierced wiring line  136 . The base portion  131  is provided with an opening portion having a tapered form at a center. The lower electrode  132  corresponds to a circular-shaped diaphragm  31  which is deformed when pressure is applied, while the lower electrode  132  covers the opening portion of the base portion  131 . The insulating film  134  insulates the lower electrode  132  from the base portion  131 . The lower electrode pierced wiring line  136  is pierced in the base portion  131  and is connected to the lower electrode  132 . Although not shown in the drawing, the lower electrode pierced wiring line  136  has been insulated from the base portion  131 . 
     Also, a switch circuit for switching an applied signal (voltage, or current) has been connected to the lower electrode  132  and the movable portion  23  and the fixed portion  24  of the capacitance type acceleration sensor  20 . Since this switch current is employed, a first time and a second time are set in a periodic manner. In the first time, signals different from each other are inputted to the movable portion  23  and the fixed portion  24 , whereas no signal is inputted to the lower electrode  132 . In the second time, the same signals are inputted to the movable portion  23  and the fixed portion  24 , and a signal is inputted to the lower electrode  132 . 
     In synchronism with this time period, an A/D converting circuit (not shown) switches input ports so as to acquire a potential difference (current difference) between the movable portion  23  and the fixed portion  24  in the first time, and also to acquire a potential difference (current difference) between the lower electrode  132 , and both the movable portion  23  and the fixed portion  24  in the second time. 
     Generally speaking, since an A/D converter and a D/A converter are operated in response to the same timer pulse, an input port for acquiring an output signal is synchronized with an output port for outputting an applied signal, so that the input port and the output port may be switched. 
     Since such a structure is equipped with the composite type dynamic amount sensor  1 , acceleration may be calculated based upon a change in electrostatic capacitances between the movable portion  23  and the fixed portion  24  in the first time. On the other hand, pressure applied to the lower electrode  132  may be calculated based upon an electrostatic capacitance between the movable portion  23  and the fixed portion  24 , and the lower electrode  132  in the second time. 
     Seventh Embodiment 
     Referring now to  FIG. 14 , a description is made of a composite type dynamic amount sensor  1  according to a seventh embodiment. The seventh embodiment has the below-mentioned technical different points from those of the sixth embodiment. That is, in this embodiment, the capacitance type pressure sensor  130  is equipped with an upper electrode. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the seventh embodiment, and descriptions thereof are omitted. 
       FIG. 14  is a sectional view for showing the composite type dynamic amount sensor  1  according to the seventh embodiment, and corresponds to  FIG. 1B  in the first embodiment. 
     As represented in  FIG. 14 , the capacitance type pressure sensor  130  is constituted by a base portion  131 , a lower electrode  132 , an upper electrode  133 , an insulating film  134 , an upper electrode pierced wiring line  135 , and also a lower electrode pieced wiring line  136 . The base portion  131  is provided with an opening portion having a tapered form at a center. The lower electrode  132  corresponds to a circular-shaped diaphragm  31  which is deformed when pressure is applied, while the lower electrode  132  covers the opening portion of the base portion  131 . The upper electrode  133  has an annular shape which is not deformed by pressure, and is provided within the base portion  131  in such a manner that this upper electrode  133  is located opposite to the lower electrode  132 . The insulating film  134  insulates both the upper electrode  133  and the lower electrode  132 . The upper electrode pierced wiring line  135  is pierced in the base portion  131 , and is connected to the upper electrode  133 . The lower electrode pierced wiring line  136  is pierced in the base portion  131 , and is connected to the lower electrode  132 . It should also be noted that although not shown, the lower electrode  132  and the lower electrode pierced wiring line  136  have been insulated from the base portion  131 , the upper electrode  133  and the upper electrode pierced wiring line  135  connected to the upper electrode  133 . The lower electrode pierced wiring line  136  is connected to the lower electrode  132 . 
     Also, the respective pierced wiring lines  135  and  136  have been connected via the conducting-purpose solder  91  to the pressure sensor-purpose wiring lines  94  respectively provided on a portion of the outer frame  22 . Also, similar to the structure of the third embodiment in which the NCF  101  has been sandwiched between the ground frame  31  and the outer frame  22 , the NCF  101  has been sandwiched between the base portion  131  and the outer frame  22  even in this embodiment. 
     Next, a description is made of effects achieved in the seventh embodiment. When positive pressure is applied to the opening portion of the base portion  131 , the lower electrode  132  corresponding to the diaphragm  31  is deformed, so that a distance between the lower electrode  132  and the upper electrode  133  is separated. At this time, since either the voltage or the current is applied between the upper electrode  133  and the lower electrode  132 , the distance between the upper and lower electrodes  133  and  132  is separated, so that the electrostatic capacitance between these lower and upper electrodes  132  and  133  is decreased. Also, at this time, since such a sealing space has been formed by the lower electrode  132 , the capacitance type acceleration sensor  20  (concretely speaking, both outer frame  22  and insulating film  134 ), and the NCF  101 , this sealing space may constitute the reference pressure chamber  37  so as to improve the detection precision of the capacitance type pressure sensor  130 . 
     As previously explained, even in such a case that the capacitance type pressure sensor  130  is employed, similar operation and effects to those of the third embodiment may be achieved. 
     Eighth Embodiment 
     Referring now to  FIG. 15A  and  FIG. 15B , a description is made of a composite type dynamic amount sensor  1  according to an eighth embodiment. The eighth embodiment has the below-mentioned technical different points from those of the respective embodiments described above. That is, in this embodiment, a pressure sensor processing circuit  40   a  of a piezoelectric type pressure sensor  30  has been provided on a pressure sensor substrate  151  of the piezoelectric type pressure sensor  30 ; and an acceleration sensor processing circuit  40   b  has been provided on an outer frame of a capacitance type acceleration sensor  20 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the eighth embodiment, and descriptions thereof are omitted. 
       FIG. 15A  is a sectional view for showing the composite type dynamic amount sensor  1  according to the eighth embodiment, and corresponds to  FIG. 1B  in the first embodiment; and  FIG. 15B  corresponds to  FIG. 1C  in the first embodiment. 
     The piezoelectric type pressure sensor  30  will now be described with reference to  FIG. 15A . The piezoelectric type pressure sensor  30  is constituted by a diaphragm  31 , a piezoelectric resistor  32 , a pressure sensor-purpose wiring line  33 , a pressure sensor processing circuit  40   a , and a penetration electrode  111 . The diaphragm  31  has been formed by removing a portion of a pressure sensor substrate  151 . The piezoelectric resistor  32  has been provided on the diaphragm  31 . The pressure sensor-purpose wiring line  33  is connected to the piezoelectric resistor  32  and the pressure sensor processing circuit  40   a . The pressure sensor processing circuit  40   a  has been formed within the pressure sensor substrate  151  and processes a signal of the pressure sensor-purpose wiring line  33 . The penetration electrode  111  transfers a processed signal of the pressure sensor processing circuit  40   a  over the pressure sensor substrate  151 . It should also be noted that the pressure sensor processing circuit  40   a  has been formed on an opposite plane of the diaphragm  31  on the opening side in the pressure sensor substrate  151 . The pressure sensor-purpose wiring line  33  has been connected to an input terminal of the pressure sensor processing circuit  40   a . Also, an output terminal of the pressure sensor processing circuit  40   a  has been connected to the penetration electrode  111 . It should also be understood that this penetration electrode  111  has been insulated from the pressure sensor substrate  151  by the insulating film  112 . 
     Referring now to  FIG. 15A  and  FIG. 15B , the capacitance type acceleration sensor  20  will be described. When the piezoelectric type pressure sensor  30  is stacked on the capacitance type acceleration sensor  20 , in the outer frame  22 , the acceleration sensor processing circuit  40   b  has been formed at a place located opposite to the diaphragm  31 . Also, both the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c  have been connected to an input terminal of the acceleration sensor processing circuit  40   b , whereas an acceleration sensor output wiring line  152  has been connected to an output terminal thereof. This acceleration sensor output wiring line  152  implies such a wiring line which outputs a result obtained by the acceleration sensor processing circuit  40   b  for processing signals entered from the fixed portion-purpose wiring line  24   c  and the movable portion-purpose wiring line  23   c . As this acceleration sensor output wiring line  152 , such a portion which is not covered by the pressure sensor substrate  151  is exposed from the oxide film  28  to become a pad. 
     Also, as shown in  FIG. 15A  and  FIG. 15B , the piezoelectric type pressure sensor  30  has been coupled to the capacitance type acceleration sensor  20  by the coupling-purpose solder  92  under such a condition that these sensors  30  and  20  depress a first air tight ring  93   a  and a second air tight ring  93   b  so as to sandwich therebetween these rings  93   a  and  93   b . In other words, both the movable portion  23  and the fixed portion  24  are sealed within the sealing space by the first air tight ring  93   a . Furthermore, the reference pressure chamber  37  is formed by the second air tight ring  93   b , the diaphragm  31 , and the insulating film  28 . 
     Since the above-explained structure is employed in the composite type dynamic amount sensor  1 , while similar operation and effects to these of the first embodiment may be achieved, the processing circuits  40   a  and  40   b  can be sealed, so that processing circuits  40   a  and  40   b  can be protected. 
     Ninth Embodiment 
     Referring now to  FIG. 16 , a description is made of a composite type dynamic amount sensor  1  according to a ninth embodiment. The ninth embodiment has the below-mentioned technical different points from those of the eighth embodiment. That is, in this embodiment, a sensor which senses pressure corresponds to a capacitance type pressure sensor. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the ninth embodiment, and descriptions thereof are omitted. 
       FIG. 16  is a sectional view for showing the composite type dynamic amount sensor  1  according to the ninth embodiment, and corresponds to  FIG. 15B  in the eighth embodiment. 
     As indicated in  FIG. 16 , the capacitance type pressure sensor is constituted by an upper electrode  133  provided on a diaphragm  35 , and a lower electrode  132  which is located opposite to the upper electrode  133  and is upwardly formed on a supporting substrate via an insulating film  26 . Then, an output signal of the upper electrode  133  and an output signal of the lower electrode  132  are inputted to the processing circuit  40  via wiring lines (not shown, for example, penetration electrodes). The processing circuit  40  compares the output signal of the upper electrode  133  with the output signal of the lower electrode  132  so as to detect an electrostatic capacitance between the upper electrode  133  and the lower electrode  132 , and then, calculates pressure applied to the diaphragm  35  based upon a change amount of the detected electrostatic capacitances. It should also be noted that as the lower electrode  132  of this embodiment, this lower electrode  132  is not formed by being substituted by the movable portion  23  and the fixed portion  24  as shown in  FIG. 13 , but a single silicon member having a rectangular shape may be employed. 
     On the other hand, the capacitance type acceleration sensor  20  is made of a substantially same structure as that of the above-described capacitance type acceleration sensor  20  of  FIG. 11 . However, although the penetration electrode  111  which transfers the output signal of the capacitance type acceleration sensor  20  has been provided on the diaphragm  31  in  FIG. 11 , the penetration electrode  111  has been provided on a place of the pressure sensor substrate  151 , which is not the diaphragm  35  in this embodiment. Then, in the pressure sensor substrate  151 , the processing circuit  40  has been provided on an edge plane of this substrate  151 , which is located opposite to the side of the supporting substrate. As indicated in  FIG. 16 , an output signal of the fixed portion  24  is entered via the penetration electrode  111  and the wiring line  161  to the processing circuit  40 , and furthermore, an output signal of a movable portion (not shown), and also output signals of the lower electrode  132  and the upper electrode  133  are entered to this processing circuit  40 . The processing circuit  40  further executes an amplifying process and a calculating process based upon these input signals in order to output calculation results by employing an acceleration sensor output wiring line  152  and another wiring line (not shown). As shown in the acceleration sensor output wiring line  152  of  FIG. 16 , pads have been provided on edge portions of these wiring lines. 
     Since the above-described structure is constructed in the composite type dynamic amount sensor  1 , even when such a capacitance type pressure sensor is employed, similar operation and effects as those of the above-described eighth embodiment can be achieved. 
     It should also be understood that although the lower electrode  132  is made of the electrode having the plate-shaped member in the ninth embodiment, such a structure may be alternatively employed instead of the lower electrode  132  that both the fixed portion and the movable portion of  FIG. 13  are located opposite to the upper electrode  133 . In this alternative case, it is so assumed that while the capacitance type acceleration sensor  20  located opposite to the processing circuit  40  is defined as a first acceleration sensor, and both the fixed portion and the movable portion are defined as a second acceleration sensor, which are located opposite to the upper electrode  133  and are substituted as the lower electrode; and both a detecting direction (displace direction of movable portion) of the first accelerator sensor and a detecting direction of the second acceleration sensor are made different from each other (for instance, orthogonal direction). At this time, similar to the sixth embodiment, timing (first time) for detecting acceleration and timing (second time) for detecting pressure are set to both the fixed portion and the movable portion of the second acceleration sensor in a periodic manner. As a result, acceleration may be detected by the second acceleration sensor in the first time, whereas pressure may be detected by the second acceleration sensor and the upper electrode  133  in the second time. 
     Since the above-described alternative structure is constructed, the acceleration of the 2 axes may be detected by the first acceleration sensor and the second acceleration sensor, and further, the pressure may be detected by employing the fixed portion and the movable portion of the second acceleration sensor, and the upper electrode  133 . 
     Tenth Embodiment 
     Referring now to  FIG. 17  and  FIG. 18 , a description is made of a composite type dynamic amount sensor  1  according to a tenth embodiment. This embodiment is such an embodiment that a plurality of the above-explained composite type dynamic amount sensors  1  of the first embodiment are manufactured at the same time by employing a semiconductor process. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the tenth embodiment, and descriptions thereof are omitted. 
       FIG. 17  is a bird&#39;s eye view for representing a wafer substrate  171  in which a plurality of the above-described composite type dynamic amount sensors  1  of the first embodiment shown in  FIG. 1A  to  FIG. 1C  have been integrated. Furthermore,  FIG. 18  is an enlarged sectional view of the wafer substrate  171 , taken along a line XVIII-XVIII in  FIG. 17 . As represented in  FIG. 18 , the piezoelectric type pressure sensors  30  of  FIG. 1A  to  FIG. 1C  are stacked on each other in order to correspond to the respective capacitance type acceleration sensors  20  of the acceleration sensor-sided wafer substrate where the plural pieces of capacitance type acceleration sensor  20  of  FIG. 1A  to  FIG. 1C  are stacked. As a result, such a wafer substrate  171  that the plural pieces of composite type dynamic amount sensors  1  shown in  FIG. 17  have been stacked is formed. Then, this wafer substrate  171  is dicing-cut along dot lines shown in  FIG. 17  and  FIG. 18 , so that a plurality of the composite type dynamic amount sensors  1  of  FIG. 1A  to  FIG. 1C  can be obtained. 
     Under such a condition that the piezoelectric type pressure sensors  30  have been stacked on the capacitance type acceleration sensors  20 , the fixed portion-purpose pads  24   d  and the movable portion-purpose pads  23   f  of the capacitance type acceleration sensors  20  are exposed, so that an energizing test may be carried out before the wafer substrate  171  is dicing-cut. Alternatively, a wafer substrate  1  where a plurality of acceleration sensors have been formed, and another wafer substrate  2  where a plurality of pressure sensors have been formed may be stacked each other under wafer statuses, and thereafter, the stacked wafer substrates may be dicing-cut. In this alternative case, either a penetration groove or a penetration hole has been formed in the wafer substrate  2  on which the pressure sensors of the upper area portion have been formed, which are wired-bonded with the acceleration sensors in order to be equivalent to, for example,  FIG. 18 , and thereafter, the wafer substrates are stacked on each other. 
     Eleventh Embodiment 
     Referring now to  FIG. 19A  and  FIG. 20A  to  FIG. 20C , a description is made of a composite type dynamic amount sensor  1  according to an eleventh embodiment. The eleventh embodiment has the below-mentioned technical different points from those of the above-described tenth embodiment. That is, in this embodiment, a piezoelectric type pressure sensor  30  which is stacked on an acceleration sensor-sided wafer substrate  171  is stacked under a condition of a pressure sensor-sided wafer substrate  172 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the eleventh embodiment, and descriptions thereof are omitted. 
       FIG. 19  is a sectional view for showing the composite type dynamic amount sensor  1  according to the eleventh embodiment. As a structure of the composite type dynamic amount sensor  1 , with respect to  FIG. 11  of the fourth embodiment, a side plane (namely, plane of direction perpendicular to pressure applied direction) of the ground frame  31   b  of the piezoelectric type pressure sensor  30  is made coincident with a side plane (namely, plane of acceleration applied direction) of the capacitance type acceleration sensor  20 . 
     Next, a description is made of a method for manufacturing the composite type dynamic amount sensor  1  of the eleventh embodiment with reference to  FIG. 20A  to  FIG. 20C . 
     Firstly, as shown in  FIG. 20A , such a pressure sensor-sided wafer substrate  172  is prepared in which a plurality of the above-explained piezoelectric type pressure sensors  30  shown in  FIG. 19  have been stacked. This pressure sensor-sided wafer substrate  172  is such a pressure sensor-sided wafer substrate into which the piezoelectric resistor  32  and the penetration electrode  111  (which are not shown) have been processed in the above-described forming step in the fourth embodiment and then have already been formed. 
     In a step of  FIG. 20B  subsequent to the step of  FIG. 20A , after the conducting-purpose solder  91  is set to an exposed portion of the penetration electrode  111  of the pressure sensor-sided wafer substrate  172 , and the NCF  101  is set to a predetermined portion, the pressure sensor-sided wafer substrate  172  is stacked with respect to the acceleration sensor-sided wafer substrate  171 . 
     In a step of  FIG. 20C  subsequent to the step of  FIG. 20B , the stacked substrate manufactured in  FIG. 20B  is dicing-cut along dot lines, so that such a composite type dynamic amount sensor  1  of  FIG. 19  can be obtained. 
     In the eleventh embodiment, after the pressure sensor-sided wafer substrate  172  and the acceleration sensor-sided wafer substrate  171  have been stacked to each other, the stacked wafer substrate is dicing-cut. As a result, in accordance with the manufacturing method of the eleventh embodiment, total numbers of the dicing-cut process and of the stacking process are smaller than those of the below-mentioned case: That is, the pressure sensor-sided wafer substrate  172  is dicing-cut to form the piezoelectric type pressure sensor  30 , and further, the acceleration sensor-sided wafer substrate  171  is dicing-cut to form the capacitance type acceleration sensor  1 , and then, these sensors  172  and  171  are separately stacked to each other. 
     On the other hand, in the present embodiment, the composite type dynamic amount sensor  1  having the substantially same structure as that of the above-described fourth embodiment shown in  FIG. 11  has been manufactured by stacking the pressure sensor-sided wafer substrate  172  on the acceleration sensor-sided wafer substrate  171 . However, a structure of a composite type dynamic amount sensor manufactured by a stacking manner is not limited only to that shown in  FIG. 11 . For example, as represented in  FIG. 1A  to  FIG. 1C  of the first embodiment, even when the piezoelectric type pressure sensor  30  is employed which has the pressure sensor-purpose pad  34  on the plane of the ground frame  31   b  of the deforming portion  31   a , which is located opposite to the concave bottom plane, such a pressure sensor-sided wafer substrate on which the above-described piezoelectric type pressure sensor  30  has been integrated is prepared. Then, this pressure sensor-sided wafer substrate may be stacked on an acceleration sensor-sided wafer substrate. In this alternative case, it is preferable to form a penetration hole in the pressure sensor-sided wafer substrate before the piezoelectric type pressure sensor  30  is stacked in order that the fixed portion-purpose pad is not covered by the ground frame  31   b  of the piezoelectric type pressure sensor  30 . 
     In addition to the structure shown in  FIG. 1A  to  FIG. 1C , even in the structure of  FIG. 9A  to  FIG. 9C , the structure of  FIG. 10A  to  FIG. 10C , the structure of  FIG. 11 , and the structure of  FIG. 12 , the pressure sensor-sided wafer substrates may be stacked on the acceleration sensor-sided wafer substrates, and then, the stacked wafer substrates may be dicing-cut. Also, in the structure of  FIG. 35 , the first acceleration sensor-sided wafer substrate may be stacked on the second acceleration sensor-sided wafer substrate, and then, the stacked wafer substrate may be dicing-cut. 
     Twelfth Embodiment 
     Referring now to  FIG. 21 ,  FIG. 22A  to  FIG. 22B , and  FIG. 23A  to  FIG. 23F , a description is made of a stacked layer type dynamic amount sensor  201  according to a twelfth embodiment. The twelfth embodiment has the below-mentioned technical different points from those of the first embodiment. That is, in this embodiment, a piezoelectric type pressure sensor  30  has been stacked on a circuit board  240 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the twelfth embodiment, and descriptions thereof are omitted. 
       FIG. 21  is a plan view for showing the stacked layer type dynamic amount sensor  201  according to the twelfth embodiment. In  FIG. 21 , although piezoelectric resistors  32  are not exposed from a surface of the stacked layer type dynamic amount sensor  201 , setting positions are indicated by using dot lines, for the sake of explanations. The penetration electrodes  111  exposed in  FIG. 21  are employed so as to supply electric power for driving the processing circuit  40  and the piezoelectric type pressure sensor  30 , and are used as the ground, and also are employed to derive output signals from the processing circuit  40  and the piezoelectric type pressure sensor  30 . A sectional view, taken along a line XXIIA-XXIIA of  FIG. 21  is shown in  FIG. 22A , and another sectional view, taken along a line XXIIB-XXIIB of  FIG. 21  is indicated in  FIG. 22B . 
     As indicated in  FIG. 22A , the stacked layer type dynamic amount sensor  201  has such a structure that the piezoelectric type pressure sensor  30  has been stacked on the circuit board  240 . An output signal of the piezoelectric type pressure sensor  30  is entered via the penetration electrode  111  and a wiring line  161  to the processing circuit  40  of the circuit board  24 , and thus, is processed in this processing circuit  40 . Then, a signal processed result of the processing circuit  40  is derived from a surface of the diaphragm  31  by the processing circuit  40  and the penetration electrode  111  which penetrates the surface of the diaphragm  31 . Also, the reference pressure chamber  37  of the piezoelectric type pressure sensor  30  is realized by diverting a space which is formed between a surface protection film  241  of the circuit board  240  and the diaphragm  31 . Also, as indicated in  FIG. 22B , another penetration electrode  111  for supply the drive power to the processing circuit  40  has been provided. 
     Referring now to  FIG. 23A  to  FIG. 23F , a description is made of a method for manufacturing the stacked layer type dynamic amount sensor  201  according to this embodiment. 
     Firstly, as shown in  FIG. 23A , the diaphragm  31  into which the piezoelectric resistors  32  have been internally formed, and the circuit board  240  are prepared, and then are adhered to each other. In the circuit board  240 , the processing circuit  40  and the wiring line  161  made of aluminum are provided on a silicon substrate. As one example as to the adhering methods, both the diaphragm  31  and the circuit board  240  may be surface-processed in a vacuum atmosphere, and may be joined to each other by a surface activating method (direct joining at room temperature). If the direct joining method at the room temperature is conducted, then the following merit may be obtained: That is, the diaphragm  31  can be joined to the circuit board  240  at a temperature lower than a melting point of aluminum which constitutes the wiring line  161 . Alternatively, an anode joining method and a glass joining method using low melting point glass may be employed. 
     In a step of  FIG. 23B  subsequent to  FIG. 23A , a photo-resist mask forming operation and a reactive ion etching process (will be referred to as “RIE” process hereinafter) are carried out with respect to the insulating film  36  formed on the piezoelectric resistors  32  of the diaphragm  31  so as to form a contact hole  243  in the ground frame  31   b . This RIE process is performed until the wiring line  161  of the circuit board  240  is exposed. In other words, since the wiring line  161  is made of aluminum, this wiring line  161  may function as a stopper when the RIE process is performed. 
     In a step of  FIG. 23C  subsequent to  FIG. 23B , an oxide film (SiO 2 )  242  is deposited by way of a CVD (chemical vapor deposition) method on the wall plane of the contact hole  243 . At this time, the oxide film  242  is also deposited even on the wiring line  161  on the bottom plane of the contact hole  243 . 
     In a step of  FIG. 23D  subsequent to  FIG. 23C , the RIE process is further performed so as to expose the wiring line  161 , and also to form a contact hole  31   e  in a portion of the insulating film  36  which covers the piezoelectric resistors  32 . 
     In a step of  FIG. 23E  subsequent to  FIG. 23D , aluminum is deposited by the CVD method on the contact hole  243  and the contact hole  31   e  formed in the oxide film  36  which covers the piezoelectric resistors  32 . At this time, aluminum is also deposited on a space between a portion of the contact hole  243  and the contact hole  31   e  formed in the oxide film  36  in order to electrically connect these contact holes  243  and  31   e  to each other, so that a pressure sensor-purpose wiring line  33  is formed. It should also be noted that a substance to be deposited is not limited only to aluminum, but may be selected from other metals such as tungsten, and poly-silicon. In a step of  FIG. 23F  subsequent to  FIG. 23E , the surface protection film  35  is deposited in such a manner that this surface protection film  35  covers the pressure sensor-purpose wiring line  33  formed in the preceding step of  FIG. 23E . Thereafter, the RIE process is carried out in order to provide a contact hole in the surface protection film  35 , so that such a stacked layer type dynamic amount sensor  201  as shown in  FIG. 21  and  FIG. 22A  to  FIG. 22B  is accomplished. This contact hole is formed in order to derive a signal of the processing circuit  40  outside this sensor  201 . 
     Next, a description is made of effects achieved by the stacked layer type dynamic amount sensor  201  of the twelfth embodiment. As a first effect, since the piezoelectric type pressure sensor  30  is stacked on the circuit board  240 , the area occupied by the sensor can be reduced, as compared with such a structure that a piezoelectric type pressure sensor and a circuit board are separately provided. 
     Also, as a second effect, the penetration electrodes  111  are provided on the ground frame  31   b  for supporting the diaphragm  31  so as to connect the piezoelectric resistors  32  to the processing circuit  40 , so that higher reliability can be achieved, as compared with such a structure that the piezoelectric resistor  32  and the processing circuit  40  are not stacked, but are electrically connected to each other by using wires. 
     As a third effect, the processing circuit  40  is arranged behind the diaphragm  31  with respect to the pressure applied direction, namely arranged via the reference pressure chamber  37 . As a result, the processing circuit  40  can be protected. More specifically, since transistor elements which construct the processing circuit  40  may be readily and adversely influenced by contaminations (for example, contaminations caused by fluid and gas, whose pressure should be detected), it is desirable to arrange that the processing circuit  40  is separated apart from the diaphragm  31  having risks of such contaminations. 
     It should also be noted that the stacking layer steps need not be carried out in the chip unit as represented in  FIG. 23A  to  FIG. 23F . That is, as explained in the above tenth embodiment, one structural component (for example, piezoelectric type pressure sensor  30 ) may be subdivided in the chip unit, and thereafter, the divided sensor may be stacked on the other structural component (circuit board  240 ) under wafer substrate condition. Also, as described in the above eleventh embodiment, both the structural components (namely, piezoelectric type pressure sensor  30  and circuit board  240 ) may be alternatively stacked to each other under wafer substrate condition. 
     Thirteenth Embodiment 
     Referring now to  FIG. 24 , a description is made of a stacked layer type dynamic amount sensor  201  according to a thirteenth embodiment. The thirteenth embodiment has the below-mentioned technical different points from those of the twelfth embodiment. That is, in this embodiment a concave portion of a diaphragm  31  of a piezoelectric type pressure sensor  30  is present on the side of a pressure application. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the thirteenth embodiment, and descriptions thereof are omitted. 
       FIG. 24  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the thirteenth embodiment. As indicated in  FIG. 24 , the concave portion of the diaphragm  31  of the piezoelectric type pressure sensor  30  is present on the pressure application side. Then, the piezoelectric resistors  32  have been arranged via a silicon layer which constitutes the diaphragm  31  on an inner side of a bottom plane of the concave portion. 
     Also, a concave  244  has been formed in a place of the circuit board  240 , which is located opposite to the deforming portion  31   a  of the diaphragm  31  in order to become the reference pressure chamber  37  when the piezoelectric type pressure sensor  30  is stacked on the circuit board  240 . This concave  244  is formed in such a plane of the silicon substrate, which is located opposite to a plane thereof into which the processing circuit  40  has been formed. Concretely speaking, after the processing circuit  40  has been formed in the silicon substrate, a portion of the oxide film  242  provided on the plane of this silicon substrate is removed, which is located opposite to the plane thereof where the processing circuit  40  has been formed. Furthermore, while the oxide film  242  which has not been removed is employed as a mask, the silicon substrate is etched so as to form the concave  244 . Then, with respect to the circuit board  240  under such a condition that the concave  244  has been formed, such a piezoelectric type pressure sensor  30  is stacked by the direct joining process. In this piezoelectric type pressure sensor  30 , the piezoelectric resistors  32 , the pressure sensor-purpose wiring  33 , and the deforming portion  31   a  have been formed in the silicon substrate. After the direct joining process, the processing circuit  40  is electrically connected to the piezoelectric resistors  32  by utilizing the above-described method for forming the penetration electrodes  111  with reference to  FIG. 23A  to  FIG. 23F , and furthermore, the protection film  241  for protecting the circuit board  240  is provided on the side of the processing circuit  40 . 
     Also, a signal deriving electrode  245  may be formed on the protection film  241  for protecting the processing circuit  40 , and this signal driving electrode  245  may be connected by a bump, so that the stacked layer type dynamic amount sensor  201  may be formed as a flip chip. 
     Effects of this embodiment will now be described. As a first effect, since the sensor  201  is formed in the flip chip, a total number of wiring lines exposed at portions which are exposed to the open air can be decreased (in particular, total number should be preferably decreased to zero). As a second effect, while the concave  244  is formed at the rear plane of the processing circuit  40  where no element is formed, this concave  244  is utilized as the reference pressure chamber  37 , so that the capacity of the reference pressure chamber  37  can be secured. As a consequence, in order to secure the capacity of the reference pressure chamber  37 , either a spacer or an insulating film is no longer provided between the piezoelectric type pressure sensor  30  and the circuit board  240  (otherwise, may be provided). 
     Fourteenth Embodiment 
     Referring now to  FIG. 25A  to  FIG. 25B , a description is made of a stacked layer type dynamic amount sensor  201  according to a fourteenth embodiment. This embodiment is different from the above-described twelfth embodiment as to the following technical point: That is, the processing circuit  40  has been formed on such a side of the circuit board  240 , which is located opposite to the reference pressure chamber  37 . 
     It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the fourteenth embodiment, and descriptions thereof are omitted. 
       FIG. 25A  and  FIG. 25B  are sectional views for indicating the stacked layer type dynamic amount sensor  201  according to the fourteenth embodiment. Also,  FIG. 25A  corresponds to  FIG. 22A  in the twelfth embodiment, and  FIG. 25B  corresponds to  FIG. 22B  in the twelfth embodiment. As shown in  FIG. 25A  and  FIG. 25B , the processing circuit  40  has been formed on a plane of the circuit board  240 , which is located opposite to the reference pressure chamber  37 , namely, has been formed on the plane of this circuit board  240  along a direction opposite to the pressure applied direction of the diaphragm  31 . 
     Firstly, a detailed description is made of  FIG. 25A . The pressure sensor-purpose wiring line  33  has been provided within the surface protection film  35  provided on the pressure applied side of the diaphragm  31 . The pressure sensor-purpose wiring line  33  electrically connects the piezoelectric resistors  32  to the penetration electrodes  111  within the ground frame  31   b . Furthermore, the penetration electrodes  111  have been electrically connected to wiring lines  161  formed inside the protection film  241  which is provided on the surface of the circuit board  240  where the processing circuit  40  is present. Since the wiring lines  161  are set in the above-described manner, the piezoelectric resistors  32  have been electrically connected to the processing circuit  40 . 
     Next, a description is made of  FIG. 25B . In  FIG. 25B , one wiring line  161  is partially exposed from the protection film  241 , and constitutes a processing circuit-purpose pad  41  for a bonding process. This wiring line  161  is different from the wiring line of  FIG. 25A , and passes through the inner portion of the protection film  241  provided on the surface of the circuit board  240 . Also, the other wiring line  161  which passes through the protection film  241  has been electrically connected to a penetration electrode  111  which is different from that of  FIG. 22A  and has been provided in the ground frame  31   b . Then, an edge portion of this penetration electrode  111  is exposed from the surface protection film  35  provided on the pressure applied side of the diaphragm  31 , and then constitutes the processing circuit-purpose pad  41 . 
     Since the above-described structure is employed, in accordance with the stacked layer type dynamic amount sensor  201  of the fourteenth embodiment, the output signals of the processing circuit  40  may be derived not only from the edge plane of the diaphragm  31  on the pressure applied side, but also from the edge plane of the circuit board  240 , which is located opposite side from the pressure applied side. 
     It should be noted that in this embodiment, the stacked layer type dynamic amount sensor  201  has been made of such a structure that the piezoelectric pressure sensor  30  is stacked on the circuit board  240 , and the signals are derived from both planes of the stacked elements. However, this structure is merely one example. For instance, in the structure of  FIG. 1A  to  FIG. 1C , if such a penetration electrode which penetrates both the N type silicon substrate  21  and the insulating film  26  is provided on the supporting substrate  25  of the capacitance type acceleration sensor  20 , then signals may be inputted and outputted from both the planes of the composite type dynamic amount sensor  1  as explained in this embodiment. In other words, the gist of this embodiment is given as follows: While the penetration electrode is provided, the signals are inputted and outputted from both the planes of either the composite type dynamic amount sensor  1  or the stacked layer type dynamic amount sensor  201 . As a consequence, the structure of the sensor  1 , or  201  is not limited only to the structures shown in  FIG. 22A  and  FIG. 22B . 
     Fifteenth Embodiment 
     Referring now to  FIG. 26 , a description is made of a stacked layer type dynamic amount sensor  201  according to a fifteenth embodiment. The fifteenth embodiment has the below-mentioned technical different points from those of the above-described embodiments. That is, in this embodiment, a pressure sensor-purpose wiring line  33  has been formed by an impurity diffusion layer. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the fifteenth embodiment, and descriptions thereof are omitted. 
       FIG. 26  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the fifteenth embodiment. As shown in  FIG. 26 , the piezoelectric resistors  32  have been formed on such a plane of the diaphragm  31 , which is located opposite to the side thereof to which pressure is applied. Furthermore, an impurity diffusion layer formed by diffusing an impurity into the silicon substrate is located adjacent to the diaphragm  31  in such a manner that this impurity diffusion layer is electrically connected to these piezoelectric registers  32 . Then, the pressure sensor-purpose wiring line  33  made of this impurity diffusion layer has been electrically connected via the penetration electrode  111  provided on the circuit board  240  to this circuit board  240 . 
     Also, as shown in  FIG. 26 , the plane of the circuit board  240 , in which the processing circuit  40  has been formed, is faced to the reference pressure chamber  37 . 
     Although not shown in the drawing, a method for manufacturing the above-described stacked layer type dynamic amount sensor  201  will now be described. As a first step, such a piezoelectric type pressure sensor  30  is prepared on which the diaphragm  31 , the piezoelectric resistors  32 , and the pressure sensor-purpose wiring line  33  made of the impurity diffusion layer have been formed. Also, such a circuit board  240  is prepared which contains the processing circuit  40 , the protection film  241  for protecting the processing circuit  40 , and the wiring line  161  which is provided within this protection film  241  and is electrically connected to the processing circuit  40 . 
     As a second step, an edge plane of the diaphragm  31  on the side where the pressure sensor-purpose wiring line  33  made of the impurity diffusion layer is present is directly joined to such a plane of the circuit board  240  on the side where the processing circuit  40  is present. 
     As a third step, a contact hole is formed in such a plane of the circuit board  240  on the side where the processing circuit  40  is not present, while this contact hole is connected to the pressure sensor-purpose wiring line  33  made of the impurity diffusion layer. Furthermore, another contact hole which is connected to the wiring line  161  is formed in the above-described plane of the circuit board  240 . 
     As a fourth step, poly-silicon, or the like is deposited by the CVD method in such a manner that the contact holes formed in the third step are electrically connected to each other. With executions of the above-described steps, the stacked layer type dynamic amount sensor  201  of  FIG. 26  can be manufactured. 
     As an effect achieved by the stacked layer type dynamic amount sensor  201  of the fifteenth embodiment, since not only the processing circuit  40  but also the piezoelectric resistors  32  are present on the side of the reference pressure chamber  27 , these processing circuit  40  and piezoelectric resistors  32  can be hardly contacted to the open air. In other words, the environmental resistance characteristic of this stacked layer type dynamic amount sensor  201  can be increased, as compared with such a case that these processing circuit  40  and piezoelectric resistors  32  are exposed to the open air. 
     Sixteenth Embodiment 
     Referring now to  FIG. 27  and  FIG. 28A  to  FIG. 28E , a description is made of a stacked layer type dynamic amount sensor  201  according to a sixteenth embodiment. The sixteenth embodiment has the below-mentioned technical different points from those of the above-described twelfth embodiment. That is, in this embodiment, the circuit board  240  has been stacked on the capacitance type acceleration sensor  20 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the sixteenth embodiment, and descriptions thereof are omitted. 
       FIG. 27  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the sixteenth embodiment. As indicated in  FIG. 27 , a plane of the circuit board  240  on the side thereof where the processing circuit  40  is present is stacked with respect to such plane of the capacitance type acceleration sensor  20  on the side thereof where the fixed portion  24  and the movable portion  23  are present. Also, an output signal of the fixed portion  24  is once derived via one penetration electrode  111  provided on the circuit board  240  to another plane of the circuit board  240  on the side thereof where the processing circuit  40  is not present. Furthermore, this derived output signal is electrically connected via another penetration electrode  111  to the wiring line  161  present on the plane of the circuit board  240  on the side thereof where the processing circuit  40  is not present. Then, this wiring line  161  has been connected to the input terminal of the processing circuit  40 . 
     As another feature, as represented in  FIG. 27 , the SiN film  27  is not present on at least the movable portion  23 , or the thickness of this SiN film  27  is made thinner, as compared with thickness of the SiN films  27  of the outer frame  22  and the fixed portion  24 . As a consequence, the movable portion  23  has a clearance with respect to the circuit board  240 , and such a structure which is movable along the same direction as the elongation direction of the supporting substrate  25 . On the other hand, in order that the circuit board  240  can be stacked under stable condition, the SiN films  27  are present on either portions or entire portions of the fixed portion  24  and the outer frame  22 . In the case shown in  FIG. 27 , in order to simplify the step for removing the SiN films  27 , while the SiN film  27  is provided on the outer frame  22 , the clearance between the movable portion  23  and the circuit board  240  may be secured by this SiN film  27 . 
     Referring now to  FIG. 28A  to  FIG. 28E , a method for manufacturing the above-described stacked layer type dynamic amount sensor  201  will now be described. As a first step, such a circuit board  240  is prepared which contains the processing circuit  40 , the protection film  241  for protecting the processing circuit  40 , and the wiring line  161  which is provided within this protection film  241  and is electrically connected to the processing circuit  40 . Also, the capacitance type acceleration sensor  20  is prepared which has been formed in the above-described steps of  FIG. 5  and  FIG. 6 . 
     As a second step shown in  FIG. 28A , the SiN films  27  formed on the movable portion  23  and the fixed portion  24  of the capacitance type acceleration sensor  20  of  FIG. 5B  are made thin, or are removed. It should be understood that although the SiN film  27  formed on the fixed portion  24  is not always made thin, or not always removed, since there are many possibilities that the movable portion  23  is located close to the fixed portion  24 , if all of these SiN films  27  are removed, then the film removing process can be carried out in a higher efficiency. 
     As a third step shown in  FIG. 28B , the SiN film  27  of the capacitance type acceleration sensor  20  is directly joined to the plane of the circuit board  240  on the side thereof where the processing circuit  40  is present at the room temperature. 
     As a fourth step of  FIG. 28C , similar to each of the respective embodiments, contact holes  243  are provided by the RIE process. Concretely speaking, one contact hole  243  is formed which passes through the circuit board  240  and is reached to the silicon layer of the fixed portion  24  (and/or movable portion  23 ) of the capacitance type acceleration sensor  20 , and another contact hole  243  is formed which is reached to the wiring line  161  within the circuit board  240 . 
     As a fifth step shown in  FIG. 28D , an oxide film  242  is deposited on a surface of the contact hole  243  by the CVD method. 
     As a sixth step shown in  FIG. 28E , after the oxide film  242  is removed which is deposited on the surface of the silicon layer whose potential is equal to that of either the wiring line  161  or the fixed portion  24  (and/or movable portion  23 ) of the capacitance type acceleration sensor  20 , aluminum is deposited on a region which couples the contact hole  243  to the contact hole  243 . As a result, either the fixed portion-purpose wiring line  24   c  (and/or movable portion-purpose wiring line  23   c ) or the fixed portion  24  (and/or movable portion  23 ) of the capacitance type acceleration sensor  20  is electrically connected to the processing circuit  40 , and also, the output signal of the processing circuit  40  can be derived from the plane of the circuit board  240  on the side thereof where the processing circuit  40  is not formed. Deriving of this output signal of the processing circuit  40  may be carried out by a wire bonding, or by a flip-chip connection. Furthermore, the substance to be deposited is not limited only to aluminum, but also may be made of other metals such as tungsten, or poly-silicon. 
     With employment of the above-described structure, in accordance with the stacked layer type dynamic amount sensor  201  of the sixteenth embodiment, both the movable portion  23  and the fixed portion  24  can be sealed in the sealing space  246  which is formed by the circuit board  240  and the capacitance type acceleration sensor  20 . As a result, such a cap is no longer required which is employed so as to protect both a movable portion and a fixed portion of a capacitance type acceleration sensor, which is not a stacked layer type acceleration sensor. Also, since the processing circuit  40  is similarly present on the side of the above-described sealing space  246 , the stacked layer type dynamic amount sensor  201  can have a not-easily-broken structure, and also have such a structure which can be hardly and adversely influenced by contaminations from external environments. 
     Seventeenth Embodiment 
     Referring now to  FIG. 29 , a description is made of a stacked layer type dynamic amount sensor  201  according to a seventeenth embodiment. The seventeenth embodiment has the below-mentioned technical different points from those of the sixteenth embodiment. That is, in this embodiment, a plane of the circuit board  240 , on which the processing circuit  40  has been formed, is largely different from the opposite side of the above-described sixteenth embodiment. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the seventeenth embodiment, and descriptions thereof are omitted. 
       FIG. 29  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the seventeenth embodiment. As indicated in  FIG. 29 , the processing circuit  40  has been formed on a plane of the circuit board  240 , which is located opposite to another plane thereof on which the movable portion  23  and the fixed portion  24  of the capacitance type acceleration sensor are present. In other words, the processing circuit  40  has been formed on such a plane which is located opposite to the stacked plane which stacks the capacitance type acceleration sensor on the circuit board  240 . 
     As previously explained, since the processing circuit  40  is provided on the plane opposite to the stacked plane, a total number of the penetration electrodes  111  can be reduced and the sensor structure can be made simpler, as compared with the sensor structure shown in  FIG. 27 . Concretely speaking, in such a case where the processing circuit  40  is present on the side of the capacitance type acceleration sensor and the capacitance type acceleration sensor is electrically connected to the processing circuit  40 , a signal must be once derived by the penetration electrode  111  to the surface of the circuit board  240 , and furthermore, the signal must be inputted to the processing circuit  40  of the circuit board  240  on the side of the sealing space by employing another penetration electrode  111 . However, in accordance with the sensor structure of this embodiment, when the capacitance type acceleration sensor is electrically connected to the processing circuit  40 , the signal is once derived by the penetration electrode  111  to the surface of the circuit board  240 , and may be directly conducted to the processing circuit  40 . 
     Eighteenth Embodiment 
     Referring now to  FIG. 30 , a description is made of a stacked layer type dynamic amount sensor  201  according to an eighteenth embodiment. The eighteenth embodiment has the below-mentioned technical different points from those of the respective embodiments. That is, in this embodiment, piezoelectric type pressure sensor  30 , a capacitance type acceleration sensor  20 , and a circuit board  240  have been stacked with each other. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the eighteenth embodiment, and descriptions thereof are omitted. 
       FIG. 30  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the eighteenth embodiment. As indicated in  FIG. 30 , the capacitance type acceleration sensor  20  has been stacked on the circuit board  240 , and furthermore, the piezoelectric type pressure sensor  30  has been stacked on the capacitance type acceleration sensor  20 . It should also be understood that structures as to the circuit board  240 , the capacitance type acceleration sensor  20 , and the piezoelectric type pressure sensor  30  are substantially identical to the structures employed in the above-explained respective embodiments. 
     Subsequently, a method for manufacturing the above-described stacked layer type dynamic amount sensor  201  will now be described. As a first step, such a circuit board  240  is prepared which contains the processing circuit  40 , the protection film  241  for protecting the processing circuit  40 , and the wiring line  161  which is provided within this protection film  241  and is electrically connected to the processing circuit  40 . Also, a capacitance type acceleration sensor  20  is prepared. 
     In a second step subsequent to the first step, the supporting substrate side of the capacitance type acceleration sensor  20  is directly joined to the protection film  241  on the circuit board  240  on the side thereof where the processing circuit  40  is present at the room temperature. It should also be noted that this joining process may be replaced by a glass adhesive method, or an anode joining process. 
     In a third step subsequent to the second step, similar to the above-described respective embodiments, a contact hole is formed until the silicon layer of the movable portion  23  (and fixed portion  24 ) present under the insulating film  27  (SiN film etc.) of the capacitance type acceleration sensor  20  is exposed by employing the RIE process. Also, another contact hole is similarly formed until the input wiring line  247  of the circuit board  240  is exposed. 
     In a fourth step subsequent to the third step, aluminum is deposited so as to embed the contact holes formed in the above-described third step, and also, in order that the contact holes are electrically connected to each other by the CVD method, so that the fixed portion-purpose wiring line  24   c  is produced. It should be noted that the substance to be deposited is not limited only to aluminum, but may be selected from other metals such as tungsten, and poly-silicon. 
     In a fifth step subsequent to the fourth step, a surface protection film  28  is formed in such a manner that the SiN film  27  of the capacitance type acceleration sensor  20  and the fixed portion-purpose wiring line  24   c  formed in the third step are covered. Thereafter, both the movable portion and the fixed portion shown in  FIG. 5  and  FIG. 6  are formed. 
     In a sixth step subsequent to the fifth step, the diaphragm  31  in which the piezoelectric resistors  32  have been internally provided is prepared, and the ground frame  31   b  is directly joined to the surface protection film  28  of the capacitance type acceleration sensor  20 . 
     In a seventh step subsequent to the sixth step, a photo-resist mask forming process and a reactive ion etching process (will be referred to as “RIE” process hereinafter) are carried out with respect to the insulating film  36  formed on the piezoelectric resistors  32  of the diaphragm  31  so that a plurality of contact holes are formed in the ground frame  31   b . This RIE process is carried out until both an input wiring line  247  and an output wiring line  248  of the circuit board  240  are exposed. In other words, the contact holes correspond to such holes which pass through the ground frame  31   b , the surface protection film  28  of the capacitance type acceleration sensor  20 , the SiN film  27  of the capacitance type acceleration sensor  20 , the N type silicon substrate  21  of the capacitance type acceleration sensor  20 , the insulating film  26  of the capacitance type acceleration sensor  20 , and the supporting substrate  25  of the capacitance type acceleration sensor  20 , and then, are reached to the input wiring line  247  of the circuit board  240 . 
     In an eighth step subsequent to the seventh step, aluminum is deposited in such a manner that the plural contact holes formed in the seventh step are embedded and are electrically connected to each other by executing the CVD process. At this time, the contact hole communicated with the input wiring line  247  of the processing circuit  40  is electrically connected to the contact holes communicated with the piezoelectric resistors  32  by aluminum. Also, poly-silicon is simply deposited in the contact hole communicated with the output wiring line  248 , which constitutes the penetration electrodes  111 . 
     In a ninth step subsequent to the eighth step, a surface protection film  35  is provided in such a manner that the surface protection film  35  covers the aluminum and the insulating film  36  on the diaphragm  31  formed in the eighth step. Furthermore, an opening portion is formed in this surface protection film  35  so as to expose an edge portion of the penetration electrode  111  communicated with the output wiring line  248 , so that such a pad  249  used to derive an output signal of the processing circuit  40  is formed. It should be noted that the substances to be deposited in the eighth step and the ninth step are not limited only to aluminum, but may be selected from other metals such as tungsten, and poly-silicon. 
     Subsequently, a description is made of effects achieved by the stacked layer type dynamic amount sensor  201  of the eighteenth embodiment. As a first effect, since the piezoelectric type pressure sensor  30 , the capacitance type acceleration sensor  20 , and the circuit board  240  are stacked with each other, an area occupied by the sensors can be reduced, as compared with a sensor occupied area of such a structure that a piezoelectric type pressure sensor, a capacitance type acceleration sensor, and a circuit board are separately provided. 
     Also, as a second effect, under such a condition before the piezoelectric type pressure sensor  30  is adhered to the capacitance type acceleration sensor  20 , namely under such a condition that the capacitance type acceleration sensor  20  has been adhered to the circuit board  240 , the penetration electrodes  111  are provided, and the output of the capacitance type acceleration sensor  20  can be entered to the processing circuit  40 . As a result, the simple structure can be made. Concretely speaking, the structure of this embodiment can reduce a total number of the penetration electrodes  111 , as compared with the below-mentioned structure: That is, an output of a capacitance type acceleration sensor is derived up to a diaphragm by a first penetration electrode, and furthermore, the output of the capacitance type acceleration sensor derived up to the diaphragm is entered to a processing circuit by a second penetration electrode which electrically connects the first penetration electrode to the processing circuit. 
     Nineteenth Embodiment 
     Referring now to  FIG. 31 , a description is made of a stacked layer type dynamic amount sensor  201  according to an nineteenth embodiment. The nineteenth embodiment has the below-mentioned technical different points from those of the eighteenth embodiment. That is, in this embodiment, after the piezoelectric type pressure sensor  30 , the capacitance type acceleration sensor  20 , and the circuit board  240  have been stacked with each other, all of the penetration electrodes  111  are formed. It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the nineteenth embodiment, and descriptions thereof are omitted. 
       FIG. 31  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the nineteenth embodiment. As indicated in  FIG. 31 , the capacitance type acceleration sensor  20  has been stacked on the circuit board  240 , and further, the piezoelectric type pressure sensor  30  has been stacked on the capacitance acceleration sensor  20 . It should also be noted that the circuit board  240 , the capacitance type acceleration sensor  20 , and the piezoelectric type pressure sensor  30  have the substantially same structures as those of these structural members employed in the above-described respective embodiments. 
     A technical different point between the above-described eighteenth embodiment shown in  FIG. 30  and the present embodiment is given as follows: That is, the plurality of penetration electrodes  111  formed on the diaphragm  31 , and the fixed portion wiring line  24   c  for electrically connecting these penetration electrodes  111  are present. Precisely speaking, one penetration electrode  111  passes through the ground frame  31   b  from the N type silicon substrate  21  of the capacitance type acceleration sensor  20 , and is communicated to the upper portion of the diaphragm  31 . The other penetration electrode  111  penetrates the ground frame  31   b  and the capacitance acceleration sensor  20  from the upper portion of the diaphragm  31 , and is communicated to the input wiring line  247  of the processing circuit  40 . 
     Next, a method for manufacturing the above-described stacked layer type dynamic amount sensor  201  of the nineteenth embodiment will now be described. As a first step, such a circuit board  240  is prepared which contains the processing circuit  40 , the protection film  241  for protecting the processing circuit  40 , and wiring lines  247  and  248  which are provided within this protection film  241  and are electrically connected to the processing circuit  40 . Also, the capacitance type acceleration sensor  20  is prepared which has been formed in the above-described steps of  FIG. 5  and  FIG. 6 , and further, the diaphragm  31  is prepared into which the piezoelectric resistors  32  have been internally provided. Then, these circuit board  240 , the capacitance type acceleration sensor  20 , and diaphragm  31  are adhered to each other by executing the direct joining process at the room temperature. 
     In a second step subsequent to the first step, a photo-resist mask forming process and a reactive ion etching process (will be referred to as “RIE” process hereinafter) are carried out with respect to the oxide film  36  formed on the piezo electric resistors  32  of the diaphragm  31  so that a plurality of contact holes are formed in the ground frame  31   b . This RIE process is carried out until a silicon substrate plane which is electrically connected to the fixed portion  24  of the capacitance type acceleration sensor  20  is exposed, and also another silicon substrate plane which is electrically connected to the movable portion  23  thereof is exposed. 
     In a third step subsequent to the second step, a photo-resist mask forming process and a reactive ion etching process (will be referred to as “RIE” process hereinafter) are carried out with respect to the oxide film  36  formed on the piezoelectric resistors  32  of the diaphragm  31  so that a plurality of contact holes are formed in the ground frame  31   b . This RIE process is carried out until both the input wiring line  247  and the output wiring line  248  of the circuit board  240  are exposed. In other words, the contact holes correspond to such holes which pass through the ground frame  31   b , the surface protection film  28  of the capacitance type acceleration sensor  20 , the SiN film  27  of the capacitance type acceleration sensor  20 , the N type silicon substrate  21  of the capacitance type acceleration sensor  20 , the insulating film  26  of the capacitance type acceleration sensor  20 , and the supporting substrate  25  of the capacitance type acceleration sensor  20 , and then, are reached to the input and output wiring liens  247  and  248  of the circuit board  240 . 
     In a fourth step subsequent to the third step, aluminum is deposited in such a manner that the plural contact holes formed in the second step and the third step are embedded and are electrically connected to each other by executing the CVD process. At this time, the contact hole communicated with the input wiring lien  247  of the processing circuit  40  is electrically connected to the contact holes communicated with the piezoelectric resistors  32  by aluminum so as to constitute the pressure sensor-purpose wiring line  33 . Similarly, the contact hole communicated with the input wiring line  247  of the processing circuit  40  is electrically connected to the contact hole communicated with such a silicon layer whose potential is equal to that of the movable portion  23  (and fixed portion  24 ) of the capacitance type acceleration sensor  20  by aluminum so as to constitute the fixed portion-purpose wiring line  24   c . Also, poly-silicon is merely deposited on the contact hole communicated with the output wiring line  248  of the processing circuit  40  so as to constitute the penetration electrode  111 . It should also be noted that the substance to be deposited is not limited only to aluminum, but may be selected from other metals such as tungsten, and poly-silicon. 
     In a fifth step subsequent to the fourth step, the surface protection film  35  is provided in such a manner that the surface protection film  35  covers the poly-silicon and the oxide film  36  on the diaphragm  31  formed in the fourth step. Furthermore, an opening portion is formed in this surface protection film  35  so as to expose the edge portion of the penetration electrode  111  communicated with the output wiring line  248 , so that such a pad  249  used to derive an output signal of the processing circuit  40  is formed. As a result, the stacked layer type dynamic amount sensor  201  of  FIG. 31  can be manufactured. 
     Since the above-described structure is provided and the manufacturing method is carried out, the stacked layer type dynamic amount sensor  201  of this embodiment can have the below-mentioned effects: That is, as a first effect, the piezoelectric type pressure sensor  30 , the capacitance type acceleration sensor  20 , and the circuit board  240  are stacked with each other, and all of the penetration electrodes  111  are formed under such a condition that the movable portion  23  has been sealed in the reference pressure chamber  37 . As a result, there is no risk that particles and cleaning water produced when the penetration electrodes  111  are formed enter spaces between the movable portion  23  and the fixed portion  24 , which may cause the sticking phenomenon. 
     As a second effect, the output signal of the capacitance type acceleration sensor  20  is once derived above the diaphragm  31 . In this case, for example, if a portion of the surface protection film  35  covered on the diaphragm  31  is removed so as to expose the pressure sensor-purpose wiring line  33  which connects the penetration electrode  111  to the penetration electrode  111 , then the capacitance type acceleration sensor  20  can be checked. 
     Twentieth Embodiment 
     Referring now to  FIG. 32 , a description is made of a stacked layer type dynamic amount sensor  201  according to a twentieth embodiment. The twentieth embodiment has the below-mentioned technical different points from those of the eighteenth embodiment. That is, in this embodiment, a ceramic chip  250  where a wiring line  251  has been provided is sandwiched between the capacitance type acceleration sensor  20  and the circuit board  240 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the twentieth embodiment, and descriptions thereof are omitted. 
       FIG. 32  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the twentieth embodiment. As indicated in  FIG. 32 , the ceramic chip  250  where the wiring line  251  has been provided is sandwiched between the capacitance type acceleration sensor  20  and the circuit board  240 . While this ceramic chip  250  contains such a structure manufactured by combining an oxide film with the wiring line  251 , a peripheral edge portion of the wiring line  251  has been exposed from a predetermined portion (namely, place where wiring line  251  is contacted with below-mentioned penetration electrodes  111 ). Then, as an entire structure of the stacked layer type dynamic amount sensor  201 , the piezoelectric type pressure sensor  30 , the capacitance type acceleration sensor  20 , the ceramic chip  250 , and the circuit board  240  have been sequentially stacked with each other in this order from the pressure application side. 
     Next, a description is made of a method for manufacturing the stacked layer type dynamic amount sensor  201  of the twentieth embodiment. Firstly, as a first step, such a circuit board  240 , the capacitance type acceleration sensor  20  manufactured by the steps shown in  FIGS. 5A to 6B  described above and the ceramic chip  250  are prepared. The circuit board  240  contains the processing circuit  40  and the protection film  241  which protects the processing unit  40 . In the ceramic chip  250 , the peripheral edge portion of the wiring line  251  has been exposed at the predetermined portion (place where wiring line  251  is contacted with below-mentioned penetration electrode  111 ). These circuit board  240 , the sensor  20  and ceramic chip  250  are joined to each other by the direct joining process at the room temperature. At this time, the wiring line  251  is electrically connected to the processing circuit  40 . It should also be noted that as the substance which constitutes the wiring line  251 , metals such as aluminum, copper and tungsten may be employed. 
     In a second step subsequent to the first step, one penetration electrode  111  is formed in such a manner that the peripheral edge portion of the wiring line  251  is electrically connected to the fixed portion  24  (otherwise, movable portion  23 ) of the capacitance type acceleration sensor  20 . The wiring line  251  has been connected to such a place which is used to process an output signal of the capacitance type acceleration sensor  20  in the processing circuit  40 . 
     In a third step subsequent to the second step, the piezoelectric type pressure sensor  30  is directly joined to the capacitance type acceleration sensor  20 . 
     In a fourth step subsequent to the third step, another penetration electrode  111  is formed in such a manner that the peripheral edge portion of the wiring line  251  is connected to the piezoelectric resistors  32 . The wiring line  251  has been connected to such a place which is used to process an output signal of the piezoelectric type pressure sensor  30  in the processing circuit  40 . Also, another penetration electrode  111  is formed which is communicated with the peripheral edge portion of the wiring line  251  connected to an output place of an output signal in the processing circuit  40 , and drives this output signal above the diaphragm  31 . These penetration electrodes  111  have passed through the capacitance type acceleration sensor  20  so as to be connected to the wiring line  251  of the ceramic chip  250 . 
     Since the stacked layer type dynamic amount sensor  201  of this embodiment, which has such a structure, employs the above-described ceramic chip  250 , the following effect may be achieved. That is, there is a high freedom degree when the wiring lines are routed. It should also be noted that the present embodiment has exemplified the stacked layer type dynamic amount sensor  201  in the unit of chip. Alternatively, while a plurality of such stacked layer type dynamic amount sensors  201  are integrated on a wafer, these stacked layer type dynamic amount sensors  201  may be manufactured under wafer condition. 
     Twenty-first Embodiment 
     Referring now to  FIG. 33A  to  FIG. 33B  and  FIG. 34 , a description is made of a stacked layer type dynamic amount sensor  201  according to a twenty-first embodiment. The twenty-first embodiment has the below-mentioned technical different points from those of the above-described twentieth embodiment. That is, in this embodiment, a deriving electrode  245  has been provided on a side plane of the ceramic chip  250 . It should be understood that the same reference numerals shown in the above-described respective embodiments will be employed as those for denoting the same, or similar structural elements in the twenty-first embodiment, and descriptions thereof are omitted. 
       FIG. 33A  is a sectional view for showing the stacked layer type dynamic amount sensor  201  according to the twenty-first embodiment.  FIG. 33B  is a sectional view of the sensor  201 , taken along a line XXXIIIB-XXXIIIB of  FIG. 33A . As shown in  FIG. 33A , the deriving electrode  245  has been provided on the side plane of the ceramic chip  250 , namely, along a direction perpendicular to a stacking direction of the capacitance type acceleration sensor  20  and the piezoelectric type pressure sensor  30 . This deriving electrode  245  has been connected to the wiring line  251  which connects the capacitance type acceleration sensor  20  to the processing circuit  40 . In other words, an output signal of the capacitance type acceleration sensor  20  may be derived from this deriving electrode  245 . As represented in  FIG. 33B , a plurality of such deriving electrodes  245  have been formed on the side plane of the ceramic chip  250 . Concretely speaking, various sorts of output signals from the movable portion  23 , the fixed portion  24 , the piezoelectric resistors  32 , and the processing circuit  40  are derived from these deriving electrodes  245  formed on the side plane of the ceramic chip  250 . As shown in  FIG. 33A , these deriving electrodes  245  have been fixed by a bump joining  252  with respect to lead frames of the package  253 , and have been electrically connected thereto. Also, these deriving electrodes  245  have been alternately arranged with respect to the stacking direction. The substance for constructing the wiring line  251  may be selected from metals such as aluminum, copper, and tungsten. 
     In such a case that a plurality of stacked layer type dynamic amount sensors  201  of this embodiment are manufactured in an integral manner, as represented in  FIG. 34 , if one deriving electrode  245  and the other deriving electrode  245  are formed by being faced with each other, then the formed deriving electrodes  245  are dicing-cut along a dot line, and thus, one deriving electrode  245  may be divided from the other deriving electrode  245 . As other methods than the above-described dicing-cut method, after the structure of  FIG. 32  has been formed, the deriving electrodes  245  may be formed by employing the CVD process, or the like. Alternatively, as shown in  FIG. 33A , a spacer  254  having a height substantially equal to the height of the bump join  252  is set among the insulating film  26 , the SiN film  27 , and the package  253 , so that the stacked layer type dynamic amount sensor  201  is horizontally supported with respect to the package  253 . 
     Next, a description is made of effects achieved by the stacked layer type dynamic amount sensor  201  of the twenty-first embodiment. As a first effect, the output signals of the respective sensors can be derived from the deriving electrodes  245  formed on the side plane of the ceramic chip  250 , so that the stacked layer type dynamic amount sensor  201  can be vertically installed with respect to the bottom plane of the package  253 . Also, as a second effect, in addition to the above-described merit that the output signals of the respective sensors can be derived from the deriving electrodes  245  formed on the side plane of the ceramic chip  250 , similar to the above-described twentieth embodiment, the output signal of the processing circuit  40  may be derived from the upper portion of the diaphragm  31 . In other words, the output signals may be derived from at least 2 planes which have no parallel relationship with each other. 
     Other Embodiments 
     In the above-described first to tenth embodiments, either the piezoelectric type pressure sensor or the capacitance type pressure sensor has been stacked with respect to the capacitance type acceleration sensor. However, combinations of these sensors to be stacked are not limited only to the above examples. For example, a capacitance type acceleration sensor may be stacked with respect to a capacitance type angular velocity (yaw rate) sensor, or a pressure sensor may be alternatively be stacked on the capacitance type angular velocity sensor. Also, a piezoelectric resistor type pressure sensor may be alternatively stacked on a piezoelectric resistor type acceleration sensor. Furthermore, acceleration sensors whose detection directions are different from each other may be alternatively stacked with each other in such a manner that these acceleration sensors are located opposite to each other. Also, acceleration sensors for 3 axes may be alternatively formed in such a way that the acceleration sensors for X-axis and Y-axis directions are formed on one substrate, whereas the acceleration sensor for a Z-axis direction is formed on another substrate. Moreover, although the detecting directions are equal to each other, as represented in  FIG. 19 , acceleration sensors whose sensitivities are different from each other may be alternatively stacked with each other. 
     In the above-described eleventh to seventeenth embodiments, either the capacitance type acceleration sensor or the piezoelectric type pressure sensor has been stacked on the circuit board. However, combinations of these sensors to be stacked are not limited only to the above example. For instance, a capacitance type angular velocity (yaw rate) sensor may be alternatively stacked on a circuit board, or a capacitance type pressure sensor may be alternatively stacked on the circuit board. 
     The composite type dynamic amount sensor  1  shown in the above-explained embodiments first to ninth, and the stacked layer type dynamic amount sensor  201  indicated in the twelfth to twenty-first embodiments may be alternatively manufactured in accordance with such a manufacturing method that semiconductor wafer substrates are stacked with each other, and thereafter, the stacked semiconductor wafer substrate may be dicing-cut to obtain the respective chips. Also, as to stacking methods for semiconductor wafer substrates with each other, when no NCF is interposed between the substrates, a direct joining method at the room temperature, a direct joining method at a high temperature, a glass adhering method, and an anode joining method may be arbitrarily selected. 
     While the invention has been described with reference to preferred embodiments thereof, it is to be understood that the invention is not limited to the preferred embodiments and constructions. The invention is intended to cover various modification and equivalent arrangements. In addition, while the various combinations and configurations, which are preferred, other combinations and configurations, including more, less or only a single element, are also within the spirit and scope of the invention.