Patent Publication Number: US-2021183927-A1

Title: Image sensor, method of manufacturing the same, and electronic apparatus

Description:
This application is a divisional application of U.S. patent application Ser. No. 15/546,829, filed on Jul. 27, 2017, which is a U.S. National Phase of International Patent Application No. PCT/JP2016/052591, filed on Jan. 29, 2016, which claims priority benefit of Japanese Patent Application No. JP 2015-026496, filed in the Japan Patent Office on Feb. 13, 2015. Each of the above-referenced applications is hereby incorporated herein by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to an image sensor, a method of manufacturing the image sensor, and an electronic apparatus, and particularly to an image sensor, a method of manufacturing the image sensor, and an electronic apparatus where reliability of the image sensor can be further improved. 
     BACKGROUND ART 
     A conventional solid-state imaging device, which is one of the major optical devices, includes an optical element having a large number of photodiodes and microlenses on a semiconductor wafer, and is formed by forming electrical wiring and then molding the wafer airtight with glass. Such a solid-state image sensor is used as a photosensor of a digital video device such as a digital still camera, a mobile phone camera, or a digital video camera. 
     Moreover, a recent solid-state imaging device has a structure adopting a wafer level chip size package (CSP) technology in which electrical connection is secured by forming through electrodes and rewiring in assembly processing of the sensor in a wafer state. The solid-state imaging device formed by the wafer level CSP technology allows the video device to have smaller size and thickness as well as higher density packaging compared to a ceramic or plastic package which secures electrical connection by die bonding or wire bonding as in the related art. 
     Patent Document 1 for example discloses a method of manufacturing an image sensor by applying a sealing resin to a substrate in a wafer state, bonding glass thereto, thermosetting the sealing resin, and then dicing and cutting out the wafer into individual pieces. 
     CITATION LIST 
     Patent Document 
     Patent Document 1: Japanese Patent Application Laid-Open No. 2009-64839 
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     Now, in the aforementioned method of manufacturing the sensor by bonding glass to the substrate in the wafer state and then curing the sealing resin, the use of a sealing resin having high rigidity causes an increase in warpage of the wafer by thermal contraction at the time of curing the resin and thus sometimes causes a problem at the time of transferring the wafer. On the other hand, the use of a sealing resin having low rigidity causes an increase in the deformation of the sealing resin at low temperature due to a difference in linear expansion coefficients between glass and the sensor substrate in a low temperature reliability test on the image sensor after being diced into individual pieces, whereby peeling is more likely to occur in some cases. 
     It is thus required to improve the reliability of the image sensor by preventing such a problem arising at the time of transferring the wafer as well as preventing the peeling from occurring easily. 
     The present disclosure has been made in view of such circumstances, and is intended to further improve the reliability of the image sensor. 
     Solutions to Problems 
     An image sensor according to one aspect of the present disclosure includes: a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner; a seal member applied to a side of the sensor surface of the sensor substrate; a sealing member bonded to the sensor substrate via the seal member; and a reinforcing member made of a material having higher rigidity than the seal member and formed on an outer periphery of the seal member to bond the sensor substrate and the sealing member. 
     In a manufacturing method according to one aspect of the present disclosure, a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner is bonded to a sealing member via a seal member applied on a side of the sensor surface of the sensor substrate, the method including a step of forming, on an outer periphery of the seal member, a reinforcing member made of a material having higher rigidity than the seal member to bond the sensor substrate and the sealing member. 
     An electronic apparatus according to one aspect of the present disclosure includes: a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner; a seal member applied to a side of the sensor surface of the sensor substrate; a sealing member bonded to the sensor substrate via the seal member; and a reinforcing member made of a material having higher rigidity than the seal member and formed on an outer periphery of the seal member to bond the sensor substrate and the sealing member. 
     In one aspect of the present disclosure, the seal member is applied to the side of the sensor surface, on which the photodiode is arranged in a planar manner, of the sensor substrate, which is then bonded to the sealing member via the seal member, and the reinforcing member made of a material having higher rigidity than the seal member is formed on the outer periphery of the seal member to bond the sensor substrate and the sealing member. 
     Effects of the Invention 
     According to one aspect of the present disclosure, the reliability of the image sensor can be further improved. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIGS. 1A and 1B  are diagrams illustrating an example of the configuration of a first embodiment of an image sensor to which the present technology is applied. 
         FIGS. 2A, 2B, 2C, 2D, and 2E  are a set of diagrams illustrating a method of manufacturing the image sensor. 
         FIGS. 3A and 3B  are a set of diagrams illustrating a method of forming a reinforcing resin. 
         FIGS. 4A, 4B, and 4C  are a set of diagrams illustrating a method of manufacturing an image sensor according to a second embodiment. 
         FIGS. 5A, 5B, and 5C  are a set of diagrams illustrating a method of manufacturing an image sensor according to a third embodiment. 
         FIGS. 6A, 6B, 6C, and 6D  are a set of diagrams illustrating a method of manufacturing an image sensor according to a fourth embodiment. 
         FIG. 7  is a block diagram illustrating an example of the configuration of an embodiment of an imaging device to which the present technology is applied. 
         FIG. 8  is a diagram illustrating an example in which an image sensor is used. 
     
    
    
     MODE FOR CARRYING OUT THE INVENTION 
     Specific embodiments to which the present technology is applied will now be described in detail with reference to the drawings. 
       FIGS. 1A and 1B  are diagrams illustrating an example of the configuration of a first embodiment of an image sensor to which the present technology is applied.  FIG. 1A  illustrates an example of a planar configuration of the image sensor, and  FIG. 1B  illustrates an example of a cross-sectional configuration of the image sensor 
     As illustrated in  FIG. 1B , an image sensor  11  is formed of a support substrate  12 , a sensor substrate  13 , a sealing resin  14  and a reinforcing resin  15 , and sealing glass  16  that are laminated in this order from the bottom. The image sensor  11  is further provided with through electrodes  17 - 1  and  17 - 2  passing through the support substrate  12  to extract a signal from the sensor substrate  13 . Note that the image sensor  11  is a backside illumination complementary metal oxide semiconductor (CMOS) image sensor in which a sensor surface  18  is irradiated with light, the sensor surface being provided on a backside (an upper surface in  FIG. 1B ) facing away from the surface of the sensor substrate  13  on which a wiring layer is laminated. 
     The support substrate  12  is bonded to the surface of the sensor substrate  13  processed with a thin film from the back side, and supports the sensor substrate  13 . 
     The sensor substrate  13  is provided with the sensor surface  18 , on which a plurality of photodiodes is arranged in a planar manner, on the backside of the substrate and outputs a pixel signal corresponding to light received by each photodiode through the wiring layer laminated on the surface side of the substrate. 
     The sealing resin  14  is formed by applying a resin material having low rigidity to the backside of the sensor substrate  13  in order to bond the sealing glass  16  to the sensor surface  18  of the sensor substrate  13 . Moreover, the sealing resin  14  is formed to have a smaller area than each of the sensor substrate  13  and the sealing glass  16 , so that a concave groove is formed along the side surfaces of the image sensor  11  on the outer periphery of the sealing resin  14 . 
     As illustrated in  FIG. 1A , for example, the reinforcing resin  15  is formed so as to surround the outer periphery of the sealing resin  14 , and bonds the sensor substrate  13  and the sealing glass  16  together to reinforce the bond strength therebetween. That is, as illustrated in  FIG. 1B , the reinforcing resin  15  is formed to fill the gap between the sensor substrate  13  and the sealing glass  16  facing each other, or to fill the groove formed along the side surfaces of the image sensor  11 , the groove being formed due to the sealing resin  14  having the small area. A resin material having higher rigidity than the sealing resin  14  is used for the reinforcing resin  15 , for example, and is cured to be formed into the reinforcing resin  15 . 
     The sealing glass  16  molds the sensor surface  18  of the sensor substrate  13  airtight. Note that the sealing glass  16  may be formed of a member that transmits light and thus be a sealing member made of material other than glass. 
     The image sensor  11  configured as described above uses the sealing resin  14  having low rigidity as the main component bonding the sensor substrate  13  and the sealing glass  16  to thus be able to prevent warpage by thermal contraction at the time of curing the resin and a problem at the time of wafer transfer. Moreover, the image sensor  11  uses the reinforcing resin  15  having high rigidity to reinforce the bond strength between the sensor substrate  13  and the sealing glass  16  on the outer periphery of the sealing resin  14 , thereby preventing the sealing resin  14  from peeling off in a low temperature reliability test. The reliability of the image sensor  11  can thus be improved. 
     Next, a method of manufacturing the image sensor  11  will be described with reference to  FIGS. 2A, 2B, 2C, 2D, and 2E . 
     First, as illustrated in  FIG. 2A , there is prepared a substrate  21  in a wafer state before being diced into the size of the image sensor  11 . The substrate  21  is formed by bonding a support substrate layer  23  to the surface side of a sensor layer  22  on which the sensor surface  18  is formed for each image sensor  11 , forming the through electrodes  17 - 1  and  17 - 2  in the support substrate layer  23  for each image sensor  11 , and then applying a resin layer  24  to the back side of the sensor layer  22  to bond a glass layer  25  thereto. 
     In a first step, the substrate  21  is cut along a broken line to be formed into the image sensor  11  that is diced into a predetermined size as illustrated in  FIG. 2B . 
     Next, in a second step, the resin on the outer periphery of the sealing resin  14  is removed by laser ablation or an encapsulation remover, for example. This step forms the image sensor  11  with the groove formed by the sealing resin  14  on the side surfaces of the sensor, as illustrated in  FIG. 2C . 
     Then in a third step, a jet dispenser is used to apply a resin material, which is to be the reinforcing resin  15 , to the groove formed by the sealing resin  14 , and then the resin material is cured to be formed into the reinforcing resin  15  as illustrated in  FIG. 2D . As a result, the sensor substrate  13  and the sealing glass  16  are bonded to each other by the reinforcing resin  15  on the outer periphery of the sealing resin  14 , whereby the image sensor  11  as illustrated in  FIGS. 1A and 1B  is formed. 
     After that, in a fourth step, the through electrodes  17 - 1  and  17 - 2  of the image sensor  11  are electrically connected to a mounting substrate  31  by solder  32 - 1  and  32 - 2  as illustrated in  FIG. 2E . 
     Note that in applying the resin material with the jet dispenser, the resin material may be applied in a larger amount so as to protrude from the groove formed by the sealing resin  14  and then be cured, as illustrated in  FIG. 3A . Such application of the resin material forms a reinforcing resin  15 ′ bulging out from the side surface of the image sensor  11 . After that, as illustrated in  FIG. 3B , the sealing resin  14  is made flush with the sensor substrate  13  and the sealing glass  16  by a method of removing the protruding portion of the resin material by laser ablation or polishing, whereby the side surface of the image sensor  11  can be made flat. It goes without saying that, instead of using such a method, the reinforcing resin  15  may be formed by adjusting the amount of the resin material applied such that the resin material fills only the groove formed by the sealing resin  14 . 
     The manufacturing method including the aforementioned steps can manufacture the image sensor  11  with high reliability as described above. 
     The image sensor  11  for example uses the groove formed by the sealing resin  14  to be able to let the resin material for forming the reinforcing resin  15  stay in the groove. That is, the resin material applied to the side surface possibly drips in a configuration not including such a groove, whereas in the image sensor  11 , the reinforcing resin  15  can be formed stably without the resin material dripping. 
     Moreover, the groove formed on the outer periphery of the sealing resin  14  is deep enough to prevent the reinforcing resin  15  from blocking the light condensed on the sensor surface  18  of the sensor substrate  13  through an optical system not shown, for example. Furthermore, the reinforcing resin  15  may be made of a resin material having higher rigidity than the sealing resin  14 , preferably a resin material having the rigidity of about 10 to 100 times the rigidity of the sealing resin  14 , for example. 
     Still furthermore, the configuration of the image sensor  11  is not limited to the aforementioned configuration in which the reinforcing resin  15  is formed in the groove as long as the reinforcing resin  15  can be formed to allow the sensor substrate  13  and the sealing glass  16  to be bonded to each other on the outer periphery of the sealing resin  14 . 
     Next,  FIGS. 4A, 4B, and 4C  are a set of diagrams illustrating a method of manufacturing an image sensor  11 A according to a second embodiment. 
     First, there is prepared a substrate  21  similar to that of  FIG. 2A  described above. Then in a first step, the substrate  21  is cut along a broken line so that the image sensor  11 A diced into a predetermined size is formed. At this time, dicing blades with different thicknesses are used against the substrate  21  to cut out the image sensor  11 A from both the side of a glass layer  25  and the side of a support substrate layer  23 . 
     The thickness of the broken line illustrated in  FIG. 4A  represents the width of dicing cut, which is set narrow for the glass layer  25  and wide for a sensor layer  22 , the support substrate layer  23 , and a resin layer  24 , for example. 
     Thus, as illustrated in  FIG. 4B , the image sensor  11 A is formed such that a support substrate  12 A, a sensor substrate  13 A, and a sealing resin  14  each have a smaller area than sealing glass  16 . That is, the side surface of the sealing glass  16  is formed to protrude more on the outer side than the side surfaces of the support substrate  12 A, the sensor substrate  13 A, and the sealing resin  14  so that a difference in level is formed between the side surface of the sealing glass  16  and the side surfaces of the support substrate  12 A, the sensor substrate  13 A, and the sealing resin  14 . 
     Then in a second step, a jet dispenser is used to apply a resin material to be a reinforcing resin  15 A, and then the resin material is cured to be formed into the reinforcing resin  15 A as illustrated in  FIG. 4C . The image sensor  11 A is formed as a result. 
     At this time, the support substrate  12 A, the sensor substrate  13 A, and the sealing resin  14  are each formed to have a smaller area than the sealing glass  16  so that the difference in level is formed between the side surfaces of the support substrate  12 A, the sensor substrate  13 A, and the sealing resin  14  and the side surface of the sealing glass  16 . The reinforcing resin  15 A is formed to fill such a difference in level. That is, the reinforcing resin  15 A is formed so as to bond the side surfaces of the support substrate  12 A, the sensor substrate  13 A, and the sealing resin  14  to the bottom surface of the sealing glass  16 . Although not shown, the image sensor  11 A is thereafter connected to a mounting substrate  31  as is the case in  FIG. 2E . 
     The manufacturing method including the aforementioned steps can manufacture the image sensor  11 A with high reliability similar to the image sensor  11  of  FIGS. 1A and 1B . 
     Next,  FIGS. 5A, 5B, and 5C  are a set of diagrams illustrating a method of manufacturing an image sensor  11 B according to a third embodiment. 
     First, there is prepared a substrate  21  similar to that of  FIG. 2A  described above. Then in a first step, the substrate  21  is cut along a broken line so that the image sensor  11 B diced into a predetermined size is formed. At this time, dicing blades with different thicknesses are used against the substrate  21  to cut out the image sensor  11 B from both the side of a glass layer  25  and the side of a support substrate layer  23 . 
     The thickness of the broken line illustrated in  FIG. 5A  represents the width of dicing cut, which is set wide for a resin layer  24  and the glass layer  25  and narrow for a sensor layer  22  and the support substrate layer  23 , for example. 
     Thus, as illustrated in  FIG. 5B , the image sensor  11 B is formed such that a sealing resin  14  and sealing glass  16 B each have a smaller area than each of a support substrate  12  and a sensor substrate  13 . That is, the side surfaces of the support substrate  12  and the sensor substrate  13  are formed to protrude more on the outer side than the side surfaces of the sealing resin  14  and the sealing glass  16 B, so that a difference in level is formed between the side surfaces of the support substrate  12  and sensor substrate  13  and the side surfaces of the sealing resin  14  and sealing glass  16 B. 
     Then in a second step, a jet dispenser is used to apply a resin material to be a reinforcing resin  15 B, and then the resin material is cured to be formed into the reinforcing resin  15 B as illustrated in  FIG. 5C . The image sensor  11 B is formed as a result. 
     At this time, the sealing resin  14  and the sealing glass  16 B are each formed to have a smaller area than each of the support substrate  12  and the sensor substrate  13  so that the difference in level is formed between the side surfaces of the sealing resin  14  and sealing glass  16 B and the side surfaces of the support substrate  12  and sensor substrate  13 . The reinforcing resin  15 B is formed to fill such a difference in level. That is, the reinforcing resin  15 B is formed so as to bond the side surfaces of the sealing resin  14  and the sealing glass  16 B to the upper surface of the sensor substrate  13 . Although not shown, the image sensor  11 B is thereafter connected to a mounting substrate  31  as is the case in  FIG. 2E . 
     The manufacturing method including the aforementioned steps can manufacture the image sensor  11 B with high reliability similar to the image sensor  11  of  FIGS. 1A and 1B . 
     Next,  FIGS. 6A, 6B, 6C, and 6D  are a set of diagrams illustrating a method of manufacturing an image sensor  11 C according to a fourth embodiment. 
     First, there is prepared a substrate  21  as illustrated in  FIG. 6A  similar to that of  FIG. 2A  described above. Then in a first step, the substrate  21  is cut along a broken line so that the image sensor  11 C diced into a predetermined size is formed. 
     As a result, the image sensor  11 C with a flat side surface is formed as illustrated in  FIG. 6B . Note that the image sensor  11 C is different from the image sensor  11  of  FIGS. 1A and 1B  in that a sealing resin  14 C is formed to have the same area as each of a sensor substrate  13  and sealing glass  16  in plan view. That is, the side surface of the image sensor  11 C is made flat without formation of a groove, a difference in level or the like. 
     Then in a second step, through electrodes  17 - 1  and  17 - 2  of the image sensor  11 C are electrically connected to a mounting substrate  31  by solder  32 - 1  and  32 - 2  as illustrated in  FIG. 6C . 
     After that, in a third step, as illustrated in  FIG. 6D , a jet dispenser is used to fill a gap between the image sensor  11 C and the mounting substrate  31  while applying a resin material to be a reinforcing resin  15 C from the upper surface of the mounting substrate  31  up to the side surface of the image sensor  11 C, and then the resin material is cured to be formed into the reinforcing resin  15 C. The reinforcing resin  15 C is thus formed to bond the sensor substrate  13  and the sealing glass  16  together. 
     That is, the image sensor  11 C uses as the reinforcing resin  15 C an underfill material filling the gap between the image sensor  11 C and the mounting substrate  31 . Here, the underfill material made of a resin material having higher rigidity than the sealing resin  14  is generally applied to the gap between the image sensor  11 C and the mounting substrate  31  for the purpose of preventing oxidation of solder or cracks of solder at the time of impact, and is used for protecting the solder. The underfill material thus has rigidity higher than that of the sealing resin  14 , or rigidity suitable for use as the reinforcing resin  15 C. Accordingly, the underfill material is used as the reinforcing resin  15 C and applied at once to be able to form the reinforcing resin  15 C without adding a new step. 
     Moreover, the image sensor  11 C not provided with a groove or difference in level on the side surface can use the upper surface of the mounting substrate  31  to pile up the resin material at least up to a part of the sealing glass  16  to be able to form the reinforcing resin  15 C that bonds the sensor substrate  13  and the sealing glass  16  together. 
     The manufacturing method including the aforementioned steps can manufacture the image sensor  11 C with high reliability similar to the image sensor  11  of  FIGS. 1A and 1B . Moreover, the image sensor  11 C can be combined with the image sensor  11  of  FIGS. 1A and 1B  to form a groove similar to that of the image sensor  11  of  FIGS. 1A and 1B  on the side surface of the image sensor  11 C. That is, the reinforcing resin  15 C can be formed so as to fill the groove as well as to bond the side surface of the image sensor  11 C and the mounting substrate  31 . Likewise, the image sensor  11 C may be combined with the image sensor  11 A of  FIGS. 4B and 4C  or the image sensor  11 B of  FIGS. 5B and 5C . 
     Note that the image sensor  11  according to the aforementioned embodiments can be applied to various electronic apparatuses including an imaging system such as a digital still camera or a digital video camera, a mobile phone equipped with an imaging function, or another device equipped with the imaging function, for example. 
       FIG. 7  is a block diagram illustrating an example of the configuration of an imaging device mounted in an electronic apparatus. 
     As illustrated in  FIG. 7 , an imaging device  101  includes an optical system  102 , an image sensor  103 , a signal processing circuit  104 , a monitor  105 , and a memory  106 , and is capable of imaging still images and moving images. 
     The optical system  102  includes one or a plurality of lenses to guide image light (incident light) from a subject to the image sensor  103  and form an image on a light-receiving surface (sensor part) of the image sensor  103 . 
     The image sensor  11  of the aforementioned embodiments is applied as the image sensor  103 . The image sensor  103  accumulates electrons for a certain period of time in accordance with the image formed on the light-receiving surface via the optical system  102 . A signal corresponding to the electrons accumulated in the image sensor  103  is then supplied to the signal processing circuit  104 . 
     The signal processing circuit  104  performs various types of signal processing on a pixel signal output from the image sensor  103 . An image (image data) obtained after the signal processing performed by the signal processing circuit  104  is supplied to the monitor  105  and displayed thereon or supplied to the memory  106  and stored (recorded) therein. 
     The imaging device  101  configured as described above uses the image sensor  11  of the aforementioned embodiments to be able to perform imaging more reliably as a result of the improvement in the reliability of the image sensor  11 . 
       FIG. 8  is a diagram illustrating an example in which the aforementioned image sensor (image sensor  11 ) is used. 
     The aforementioned image sensor can be used in various cases for sensing light such as visible light, infrared light, ultraviolet light, an X-ray, and the like as described below, for example.
         A device such as a digital camera or a portable device with a camera function for photographing an image to be used for viewing   A device for use in transportation such as an in-vehicle sensor that photographs the front, back, periphery, interior and the like of a vehicle for safe driving such as automatic stop, recognizing the condition of a driver, or the like, a surveillance camera that monitors traveling vehicles and roads, or a range sensor that measures the distance between vehicles and the like   A device for use in home appliances such as a TV, a refrigerator, and an air conditioner to photograph a gesture of a user and operate an appliance in accordance with the gesture   A device for use in medical and health care such as an endoscope or a device that performs angiography by receiving infrared light   A device for use in security such as a surveillance camera used for crime prevention or a camera used for person authentication   A device for use in cosmetic purposes such as a skin measuring instrument that photographs skin or a microscope that photographs the scalp   A device for use in sports such as an action camera or a wearable camera for sports applications and the like   A device for use in agriculture such as a camera that monitors the condition of fields and crops       

     Note that the present technology can also be embodied in the following configurations. 
     (1) 
     An image sensor including: 
     a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner; 
     a seal member applied to a side of the sensor surface of the sensor substrate; 
     a sealing member bonded to the sensor substrate via the seal member; and 
     a reinforcing member made of a material having higher rigidity than the seal member and formed on an outer periphery of the seal member to bond the sensor substrate and the sealing member. 
     (2) 
     The image sensor according to (1), in which 
     the seal member is formed to have a smaller area than each of the sensor substrate and the sealing member to be provided with a gap on the outer periphery of the seal member, the sensor substrate and the sealing member facing each other through the gap, and 
     the reinforcing member is formed to fill the gap. 
     (3) 
     The image sensor according to (1), in which 
     the seal member and the sensor substrate are each formed to have a smaller area than the sealing member to be provided with a difference in level between side surfaces of the seal member and the sensor substrate and a side surface of the sealing member, and 
     the reinforcing member is formed to fill the difference in level. 
     (4) 
     The image sensor according to (1), in which 
     the sealing member is formed to have a smaller area than each of the seal member and the sensor substrate to be provided with a difference in level between a side surface of the sealing member and side surfaces of the seal member and the sensor substrate, and 
     the reinforcing member is formed to fill the difference in level. 
     (5) 
     The image sensor according to any one of (1) to (4), further including: 
     a support substrate bonded to a surface of the sensor substrate opposite to a surface to which the sealing member is bonded, in which 
     the reinforcing member is formed to fill a gap between a mounting substrate to which the support substrate is electrically connected and the support substrate, and to bond the sensor substrate and the sealing member. 
     (6) 
     A method of manufacturing an image sensor in which a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner is bonded to a sealing member via a seal member on a side of the sensor surface of the sensor substrate, the method including: 
     a step of forming, on an outer periphery of the seal member, a reinforcing member made of a material having higher rigidity than the seal member to bond the sensor substrate and the sealing member. 
     (7) 
     An electronic apparatus equipped with an image sensor including: 
     a sensor substrate provided with a sensor surface on which a photodiode is arranged in a planar manner; 
     a seal member applied to a side of the sensor surface of the sensor substrate; 
     a sealing member bonded to the sensor substrate via the seal member; and 
     a reinforcing member made of a material having higher rigidity than the seal member and formed on an outer periphery of the seal member to bond the sensor substrate and the sealing member. 
     Note that the present embodiment is not limited to the aforementioned embodiment, where various modifications can be made without departing from the scope of the present disclosure. 
     REFERENCE SIGNS LIST 
     
         
           11  Image sensor 
           12  Support substrate 
           13  Sensor substrate 
           14  Sealing resin 
           15  Reinforcing resin 
           16  Sealing glass 
           17 - 1  and  17 - 2  Through electrode 
           18  Sensor surface 
           21  Substrate 
           22  Sensor layer 
           23  Support substrate layer 
           24  Resin layer 
           25  Glass layer 
           31  Mounting substrate 
           32 - 1  and  32 - 2  Solder