WO2016084632A1 - カメラモジュール、およびカメラモジュールの製造方法、撮像装置、並びに電子機器 - Google Patents
カメラモジュール、およびカメラモジュールの製造方法、撮像装置、並びに電子機器 Download PDFInfo
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- WO2016084632A1 WO2016084632A1 PCT/JP2015/082001 JP2015082001W WO2016084632A1 WO 2016084632 A1 WO2016084632 A1 WO 2016084632A1 JP 2015082001 W JP2015082001 W JP 2015082001W WO 2016084632 A1 WO2016084632 A1 WO 2016084632A1
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- Prior art keywords
- frame
- camera module
- rigid
- resin
- flexible
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- 238000003384 imaging method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 155
- 229920005989 resin Polymers 0.000 claims abstract description 155
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 56
- 230000001070 adhesive effect Effects 0.000 claims description 44
- 239000000853 adhesive Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000009423 ventilation Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 244000241463 Cullen corylifolium Species 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000002390 adhesive tape Substances 0.000 description 28
- 238000012986 modification Methods 0.000 description 15
- 230000004048 modification Effects 0.000 description 15
- 239000000428 dust Substances 0.000 description 11
- 230000006870 function Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 206010027146 Melanoderma Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
Definitions
- the present technology relates to a camera module, a method for manufacturing a camera module, an imaging apparatus, and an electronic apparatus, and in particular, a camera module and a camera module that can reduce man-hours in the manufacturing process and reduce black spot defects.
- the present invention relates to a manufacturing method, an imaging apparatus, and an electronic apparatus.
- thermosetting resin When constructing a semiconductor device such as a camera module, when joining a frame with IRCF (infrared light cut filter) to a rigid flex on which a solid-state image sensor is placed, An adhesive made of a thermosetting resin is used.
- the surfaces to which the adhesive is applied are heated in a bonded state, the adhesive is cured, and the frame and the rigid flexible are bonded.
- the present technology has been made in view of such a situation, and in particular, by reducing the number of steps in the manufacturing process by closing the vent hole without requiring a separate step for closing the vent hole. At the same time, it is possible to prevent dirt from adhering to the image sensor.
- the camera module includes a lens unit, a rigid flexible image sensor that includes a solid-state image sensor and a FPC (Flexible Print Circuit) drawer unit joined thereto, the lens unit, and the rigid flexible module.
- a frame having an opening, and is adhered by an adhesive that is applied except for a part of a contact surface between the frame and the rigid flexible that includes a joint portion with the FPC lead-out portion.
- the reinforcing resin that reinforces the joint between the rigid flex and the FPC lead-out portion or the joint between the rigid flex and the frame so as to block a part of the area where the adhesive is not applied. To be applied.
- the air hole in the space between the frame and the rigid flexible can be formed by the range where the adhesive is not applied.
- the reinforcing resin can be applied so as to close the vent hole.
- the air hole can be in a range shorter than the length of one side of the rectangular frame.
- the vents can be formed at a plurality of locations.
- the adhesive may be a UV thermosetting resin that is cured by UV (Ultra Violet) irradiation and heating, or a thermosetting resin that is cured only by heating.
- the reinforcing resin may be a UV curable resin that is cured by irradiation with UV (Ultra Violet), a UV thermosetting resin that is cured by UV and heating, or a thermosetting resin that is cured only by heating.
- the reinforcing resin can be a light shielding resin.
- the elastic modulus of the reinforcing resin can be 100 to 10,000 MPa at 25 ° C.
- the adhesive may be applied to either the frame or the rigid flexure of the contact surface between the frame and the rigid flexure.
- the rigid flexible board may include a substrate on which a solid-state imaging device is mounted and a flexible board including a drawer portion.
- a mold can be included between the rigid flexible and the frame.
- the frame can be integrated with the lens unit.
- a method of manufacturing a camera module includes a lens unit, a rigid flexible board that includes a solid-state imaging device and a FPC (Flexible Print Circuit) drawer unit joined thereto, the lens unit, and the rigid flexible board.
- a manufacturing method of a camera module including a frame having a connection and an opening, a part of a contact surface between the frame and the rigid flex, including a joint portion between the FPC lead-out portion, is excluded.
- the adhesive is applied, the adhesive is applied to the joint between the rigid flex and the FPC drawer, or the reinforcing resin that reinforces the joint between the rigid flex and the frame. It is applied so as to block some areas that are not.
- An imaging device includes a lens unit and a rigid flexure that includes a solid-state imaging device and a FPC (Flexible Print Circuit) drawer unit joined thereto, the lens unit, and the rigid flexure.
- a frame having an opening, and is adhered by an adhesive that is applied except for a part of a contact surface between the frame and the rigid flexible that includes a joint portion with the FPC lead-out portion.
- the reinforcing resin that reinforces the joint between the rigid flex and the FPC lead-out portion or the joint between the rigid flex and the frame so as to block a part of the area where the adhesive is not applied. To be applied.
- An electronic apparatus is configured to connect a rigid flexible unit that includes a lens unit and a solid-state imaging device and is joined to an FPC (Flexible Print Circuit) drawer, the lens unit, and the rigid flexible unit.
- a frame having an opening, and is adhered by an adhesive that is applied except for a part of a contact surface between the frame and the rigid flexible that includes a joint portion with the FPC lead-out portion.
- the reinforcing resin that reinforces the joint between the rigid flex and the FPC lead-out portion or the joint between the rigid flex and the frame so as to block a part of the area where the adhesive is not applied. To be applied.
- a lens unit, a rigid flex mounted with a solid-state image sensor and a FPC (Flexible Print Circuit) drawer portion joined, the lens unit and the rigid flex are connected, and an opening And the adhesive is applied by removing a part of the contact area between the frame and the rigid flex and including a joint portion with the FPC lead-out portion.
- the frame is bonded to the rigid flex, and a joint between the rigid flex and the FPC lead-out portion or a reinforcing resin that reinforces the joint between the rigid flex and the frame is the adhesive. It is applied so as to block some areas that are not applied.
- FIG. 10 is a flowchart illustrating a manufacturing process of the camera module in FIG. 9. It is a figure explaining the manufacturing process of the camera module of FIG. It is a figure explaining the 4th modification of a camera module to which this art is applied. It is a figure explaining the 5th modification of a camera module to which this art is applied. It is a figure explaining the 6th modification of a camera module to which this art is applied. It is a figure which shows the structural example of 3rd Embodiment of the camera module to which this technique is applied. It is a figure which shows the structural example of 4th Embodiment of the camera module to which this technique is applied. It is a figure showing an example of composition of electronic equipment carrying a camera module to which this art is applied.
- FIG. 1 is an external perspective view and a side sectional view of a conventional camera module. More specifically, the left part of FIG. 1 is an external perspective view of the camera module, and the right part of FIG. 1 is a side sectional view of the camera module. 1 is a cross section AB along a straight line indicated by AB in the external perspective view of the left part of FIG.
- the camera module 11 shown in FIG. 1 includes a rigid flex 36 provided with a lens unit 31, an IRCF (infrared cut filter) 32, a frame 34, and a solid-state image sensor 41 in order from the top in the figure, which is the incident direction of incident light from a subject. It is configured.
- IRCF infrared cut filter
- the lens unit 31 and the solid-state image sensor 41 are provided coaxially.
- the frame 34 is provided with an opening 34a at a position corresponding to the solid-state image sensor 41.
- the IRCF 32 is provided so as to close the opening 34a. Is provided.
- the light transmitted through the lens unit 31 is transmitted through the IRCF 32 and is incident on the solid-state image sensor 41.
- a frame 34 including an IRCF 32 is placed on a rigid flexible 36 provided with an image sensor 41, and a thermosetting frame resin 35 is applied to the adhesive surface. Has been glued.
- the frame 34 is provided with a rectangular opening 34a at a position corresponding to the image sensor 41.
- An adhesive 40 is applied so as to surround the opening 34a except for one side of the rectangular shape, and the IRCF 32 is applied. Is bonded to form a vent hole 39.
- a post-sealing resin 38 is applied so as to close the vent holes 39.
- vent hole 39 is blocked by the sealing resin 38, so that dust can be prevented from entering through the vent hole 39, so that the generation of black spots caused by the adhesion of dirt on the solid-state image sensor 41 can be suppressed. It becomes possible.
- the lens unit fastening resin 33 is applied to the end of the upper surface of the frame 34, and the lens unit 31 is placed thereon and bonded.
- a reinforcing resin 37 is applied along the joint surface of the frame 34 with the rigid flex 36 at the base of the FPC (Flexible Print Circuit) drawer 36a extending in the lower right part of the figure.
- the FPC lead-out portion 36a can be folded back in the direction of the arrow or in the direction opposite to the arrow without destroying the module.
- the conventional camera module 11 is manufactured by the above process.
- FIG. 2 is an external perspective view of the first embodiment of the camera module to which the present technology is applied, and a side cross-sectional view that is an AB cross section in the external perspective view.
- configurations having the same functions as those in the camera module of FIG. 1 are denoted by the same names and the same reference numerals, and description thereof will be omitted as appropriate. To do.
- the camera module 11 of FIG. 2 is different from the camera module 11 of FIG. 1 in that a part in contact with the FPC lead-out portion 36a that is one side of the four sides of the rectangular frame 34 when viewed from above.
- the frame resin 35 which is an adhesive, is not applied, and the opening of the frame 34 and the IRCF 32 are joined with no gaps such as the air holes 39 in a state where the four sides are in complete contact. It is a point.
- the frame 34 and the rigid flex 36 are part of the abutting portion of the frame 34 and the rigid flex 36.
- the expanded gas can be discharged from the slit-shaped vent hole 51 that can be formed.
- the reinforcing resin 37 is applied so as to close the vent hole 51, so that the rear sealing for closing the vent hole 51 is performed. It is possible to omit the step of simply applying the stop resin 38.
- step S11 as shown in the uppermost part of FIG. 4 and the second stage from the top, the frame 34 to which the IRCF 32 is connected so as to completely close the opening 34a is placed on the rigid flex 36, The frame resin 35 is applied and bonded to the contact portion and the range excluding a part of the side in contact with the FPC lead-out portion 36a.
- the frame resin 35 when viewed from the lower side of the frame 34 in FIG. 4, the frame resin 35 is applied to a range other than a part of the side that is in contact with the FPC lead-out portion 36 a when viewed from the bottom.
- the frame 34 is adhered to the rigid flex 36 as shown in the second row of FIG.
- the frame resin 35 is a contact portion with the rigid flex 36 of the rectangular frame 34, and the side in contact with the FPC lead-out portion 36a is shorter than the length of one side. It may be applied to the vicinity of the center, and the other side may be applied to the entire range, or may be applied to the corresponding position on the rigid flex 36.
- the frame resin 35 may be not only a thermosetting resin but also a UV + thermosetting resin that is cured by heating after being irradiated with ultraviolet rays (UV).
- UV ultraviolet rays
- step S12 the lens unit 31 and the frame 34 are bonded by the lens unit fastening resin 33 as shown in the third row from the top in FIG.
- step S13 as shown in the lowermost stage of FIG. 4, the reinforcing resin 37 is applied to the portion where the vent hole 51 is formed and is in contact with the FPC lead-out portion 36a, and is cured by heating to be manufactured. Complete.
- the reinforcing resin 37 is not limited to a thermosetting resin, but may be a UV resin that is cured by irradiation with ultraviolet rays (UV), or a UV + thermosetting resin that is cured by heating after irradiation with ultraviolet rays (UV). Further, the reinforcing resin 37 is made of a light shielding resin such as black having an elastic modulus of about 100 MPa to 10000 MPa at 25 ° C., so that flare caused by light incident through the vent hole 51 can be suppressed.
- a light shielding resin such as black having an elastic modulus of about 100 MPa to 10000 MPa at 25 ° C.
- the reinforcing resin 37 is intended to reinforce the joint between the rigid flexible 36 and the FPC lead-out part 36a or the joint between the rigid flexible 36 and the frame 34. Therefore, even if the FPC lead-out portion 36a is bent in the direction of the arrow in FIG. 2 or in the opposite direction due to the portion that has been reinforced by the application of the reinforcing resin 37, the FPC portion may break, It becomes possible not to break the adhesion with the component.
- the step of applying the reinforcing resin 37 is a step included in the manufacturing process of the conventional camera module 11. . For this reason, since the step of closing the vent hole 51 can be included in the step of applying the reinforcing resin 37, the step only for closing the vent hole 51 can be omitted, and the entire manufacturing process can be omitted. Man-hours can be reduced.
- the frame resin 35 is not applied to an area where the rigid flexible 36 and the frame 34 are bonded and the side where the reinforcing resin 37 is not applied is shorter than one side.
- the example of applying has been described, other configurations may be used as long as the frame resin 35 is not applied to a part of the portion where the reinforcing resin 37 is finally applied.
- the frame 34 and the substrate 61 may be bonded so that the frame resin 35 is not applied to a part of the part where the flexible plate 62 is drawn and the reinforcing resin 37 is applied. That is, in FIG. 6, it is considered that the rigid flex 36 is substantially configured by using the substrate 61 and the flex plate 62. With such a configuration, as shown in FIG. 6, the air holes 51 are formed. Therefore, when the frame 34 and the substrate 61 are bonded, heating is performed to cure the frame resin 35.
- the expanded gas is discharged from the vent hole 51 and bonded, and then the reinforcing resin 37 is applied to close the vent hole 51. Therefore, the process of simply closing the vent hole 51 is performed. It is possible to block the vent hole 51 while omitting it, and as a result, it is possible to prevent the adhering matter from entering the solid-state imaging device 41 and to suppress the generation of black spots.
- the configuration shown in FIG. 7 can provide the same effects as those in the camera module 11 shown in FIGS.
- the configuration shown in FIG. 8 can provide the same effects as those in the camera module 11 shown in FIGS.
- the ventilation holes 51 necessary for curing the frame resin 35 are provided in any part, and after the adhesion between the frame 34 and the rigid flexible 36 is completed, the ventilation holes 51 are closed with an adhesive tape. You may do it.
- FIG. 9 shows a configuration example of the camera module 11.
- configurations having the same functions as those in the camera module of FIG. 2 are denoted by the same names and the same reference numerals, and description thereof will be omitted as appropriate.
- the camera module 11 of FIG. 9 is different from the camera module 11 of FIG. 2 in that the portion where the frame resin 35 is not applied is the side of the end of the frame 34 that faces the side where the reinforcing resin 37 is applied.
- the vent hole 51 is formed by being provided in a part of this, and the part is further covered with the adhesive tape 101.
- the adhesive tape 101 is affixed so as to close the vent hole 51, so that the adhesive tape 101, the frame 34, and the rigid flexible 36 are connected. Even if there is a gap that breaks the airtightness between them, it is possible to prevent the intrusion of dust into the space between the frame 34 and the rigid flexible 36 by attaching dust due to the adhesiveness of the adhesive tape 101, It is possible to suppress the occurrence of black spots.
- vent hole 51 formed by not applying the frame resin 35 is a part of the side facing the side to which the reinforcing resin 37 is applied.
- the vent hole 51 formed by a part of the side to which the reinforcing resin 37 or the like is not applied in the subsequent process may be formed in other parts as long as the adhesive tape 101 is attached.
- step S31 as shown in the uppermost stage in FIG. 11 and the second stage from the top, the frame 34 to which the IRCF 32 is connected so as to completely close the opening 34a is placed on the rigid flex 36, The frame resin 35 is applied and bonded to the contact portion, excluding a part of the side facing the side that contacts the FPC lead-out part 36a.
- the frame resin 35 may be not only a thermosetting resin but also a UV + thermosetting resin that is cured by heating after being irradiated with ultraviolet rays (UV).
- UV ultraviolet rays
- the frame resin 35 is a contact portion with the rigid flex 36 of the rectangular frame 34, and the side in contact with the FPC lead-out portion 36a is shorter than the length of one side. It may be applied to the vicinity of the center, and the other side may be applied to the entire range, or may be applied to the corresponding position on the rigid flex 36.
- step S32 the lens unit 31 and the frame 34 are bonded by the lens unit fastening resin 33 as shown in the third row from the top in FIG.
- step S33 as shown in the third row from the top in FIG. 11, a reinforcing resin 37 is applied to a portion in contact with the FPC lead-out portion 36a.
- the reinforcing resin 37 may be not only a UV curable resin and a thermosetting resin, but also a UV + thermosetting resin that is cured by heating after being irradiated with ultraviolet rays (UV). Furthermore, the reinforcing resin 37 is made of black or the like light-shielding resin having an elastic modulus of about 100 MPa to 10000 MPa, so that flare caused by light incident through the vent hole 51 can be suppressed.
- step S34 as shown in the lowermost stage of FIG. 11, the adhesive tape 101 is applied so as to close the vent hole 51, and the manufacturing is completed.
- the process of affixing the adhesive tape 101 is a process that originally exists. Therefore, since the vent hole 51 is blocked by the adhesive tape 101 to be applied in the first place, a process for closing the vent hole 51 can be omitted, and as a result, man-hours in the entire manufacturing process can be reduced. Is possible.
- the adhesive tape 101 is attached so as to block the vent hole 51 in this way, it is possible to prevent intrusion of dust or the like that directly passes through the vent hole 51. Furthermore, when the adhesive tape 101 is applied, a minute gap may occur on the adhesive surface between the frame 34 and the rigid flexible 36, but dust can be collected by the adhesive property of the adhesive tape 101. Further, it is possible to prevent dust from entering the space between the frame 34 and the rigid flex 36, and to suppress the generation of black spots.
- vent hole 51 may be provided as a single location or may be provided in a plurality as in the above-described example in FIG. In this case, the position may be any as long as it is a part to which the adhesive tape 101 is attached in the subsequent stage.
- the frame resin 35 is not applied to a part of the portion where the rigid flexible 36 and the frame 34 are bonded and the reinforcing resin 37 is not applied, and the adhesive tape 101 is applied later.
- another configuration may be used as long as the adhesive tape 101 is attached to a portion where the frame resin 35 is not finally applied in a subsequent step.
- the frame 34 and the substrate 61 may be bonded so that the frame resin 35 is not applied to a part of the portion where the reinforcing resin 37 is not applied. That is, in FIG. 12, it is considered that the rigid flex 36 is substantially configured using the substrate 61 and the flex plate 62. With such a configuration, as shown in FIG. 12, since the air holes 51 are formed, the frame resin 35 is heated to cure the frame resin 35 when the frame 34 and the substrate 61 are bonded.
- the expanded gas is discharged from the vent hole 51 and, after being adhered, the vent hole 51 is closed by adhering the adhesive tape 101, so that the intrusion of dust from the vent hole 51 is prevented.
- the adhering matter it is possible to prevent the adhering matter from entering the solid-state imaging device 41 and to suppress the generation of black spots.
- the configuration shown in FIG. 13 can provide the same effects as those in the camera module shown in FIGS.
- the frame resin 35 is cured by forming a hole 36 b penetrating the rigid flexible 36 in a part of the rigid flexible 36 and using this as a ventilation hole instead of the ventilation hole 51.
- the expanded gas can be discharged.
- the adhesive tape 101 is stuck so as to close the air holes formed by the holes 31b, whereby dust in the space between the frame 34 and the rigid flex 36 is obtained. Can be prevented, and as a result, the occurrence of black spots in the solid-state imaging device 41 can be suppressed.
- a plurality of hole portions 36b may be provided as long as the adhesive tape 101 is attached by a subsequent process. Further, instead of the hole 36b, a through hole may be provided.
- the lens unit 31 is fixed to the rigid flex 36 by adhering the frame 34 to the rigid flex 36 with the frame resin 35 and further adhering the frame 34 to the lens unit 31 with the lens unit fastening resin 33.
- An example has been described.
- the lens unit 31 and the rigid flexible 36 may be directly bonded by the lens unit 31 having a configuration in which the lens unit 31 and the frame 34 are integrated.
- FIG. 15 shows a configuration example of the camera module 11 in which the lens unit 31 and the rigid flex 36 are directly bonded.
- the configuration having the same function as the configuration of the camera module of FIG. 2 is given the same name and the same reference numeral, and the description thereof will be omitted as appropriate. To do.
- the camera module 11 in FIG. 15 includes a lens unit 31 having a portion corresponding to the configuration of the frame 34.
- the lens unit 31 of FIG. 15 includes a frame portion 31 b corresponding to the configuration of the frame 34 at a portion facing the rigid flexible 36 in the lower part of the drawing, and is bonded to the rigid flexible 36 by the frame resin 35.
- the frame portion 31 b is configured integrally with the lens unit 31.
- the lens unit 31 is provided with an opening 31a corresponding to the opening 34a in the frame 34 at a position facing the image sensor 41 in the lower part of the drawing so as to close the opening 31a.
- An IRCF 32 is provided.
- a slit-like air hole 51 is formed between the frame portion 31a and the rigid flex 36 for a part of the side in contact with the FPC lead-out portion 36a that is one of the four sides of the frame portion 31b.
- the reinforcing resin 37 is applied so as to close the vent hole 51. It is possible to omit the step of simply applying the post-sealing resin 38 for closing.
- FIG. 16 when the frame resin 35 that connects the lens unit 31 with the frame 34 and the rigid flex 36 is cured, the air hole 51 is provided at any one of the connection parts, so that the lens unit 31 is provided.
- 3 shows an example of the configuration of the camera module 11 in which the vent hole 51 is closed with an adhesive tape after the bonding between the rigid flexible cable 36 and the rigid flex 36 is completed.
- configurations having the same functions as those in the camera module of FIG. 9 are denoted by the same names and the same reference numerals, and description thereof will be omitted as appropriate.
- the part where the frame resin 35 is not applied is the same as the camera module 11 of FIG.
- the vent hole 51 is formed, and the part is further covered with the adhesive tape 101.
- the expanded gas can be discharged from the slit-shaped vent hole 51 that can be a part of the gas.
- the adhesive tape 101 is attached so as to close the vent hole 51, whereby the adhesive tape 101, the frame portion 31 b, and the rigid flexible 36 are bonded. Even if there is a gap that breaks the airtightness, the dust can be adhered by the adhesiveness of the adhesive tape 101, thereby preventing the dust from entering the space between the frame portion 31b and the rigid flexible 36. This makes it possible to suppress the occurrence of black spots.
- vent hole 51 formed by not applying the frame resin 35 is a part of the side facing the side to which the reinforcing resin 37 is applied has been described.
- the vent hole 51 formed by a part of the side to which the reinforcing resin 37 or the like is not applied in the subsequent process may be formed in other parts as long as the adhesive tape 101 is attached.
- the same effect can be obtained by using the lens unit 11 provided with the frame portion 31b corresponding to the frame 34 so as to correspond to the above-described fourth to sixth modifications.
- the above-described camera module can be applied to various electronic devices such as an imaging device such as a digital still camera or a digital video camera, a mobile phone having an imaging function, or other devices having an imaging function.
- FIG. 17 is a block diagram illustrating a configuration example of an imaging apparatus as an electronic apparatus to which the present technology is applied.
- An imaging apparatus 201 illustrated in FIG. 17 includes an optical system 202, a shutter device 203, a solid-state imaging device 204, a drive circuit 205, a signal processing circuit 206, a monitor 207, and a memory 208, and displays still images and moving images. Imaging is possible.
- the optical system 202 includes one or more lenses, guides light (incident light) from a subject to the solid-state image sensor 204, and forms an image on the light receiving surface of the solid-state image sensor 204.
- the shutter device 203 is disposed between the optical system 202 and the solid-state imaging device 204, and controls the light irradiation period and the light-shielding period to the solid-state imaging device 204 according to the control of the drive circuit 205.
- the solid-state image sensor 204 is configured by the solid-state image sensor 1 or the solid-state image sensor 1 described above.
- the solid-state imaging device 204 accumulates signal charges for a certain period in accordance with light imaged on the light receiving surface via the optical system 202 and the shutter device 203.
- the signal charge accumulated in the solid-state image sensor 204 is transferred according to a drive signal (timing signal) supplied from the drive circuit 205.
- the drive circuit 205 outputs a drive signal for controlling the transfer operation of the solid-state image sensor 204 and the shutter operation of the shutter device 203 to drive the solid-state image sensor 204 and the shutter device 203.
- the signal processing circuit 206 performs various types of signal processing on the signal charges output from the solid-state imaging device 204.
- An image (image data) obtained by the signal processing by the signal processing circuit 206 is supplied to the monitor 207 and displayed, or supplied to the memory 208 and stored (recorded).
- the imaging apparatus 201 configured as described above, by applying the camera module 11 described above, it is possible to reduce the man-hours in the manufacturing process and to prevent dirt from adhering to the imaging element.
- this technique can also take the following structures.
- a lens unit Rigid flex with a solid-state image sensor and joined FPC (Flexible Print Circuit) drawer, A frame connecting the lens unit and the rigid flex and having an opening; Adhered by an adhesive applied excluding a part of a range including a joint portion with the FPC drawer portion of the contact surface of the frame and the rigid flexible, Reinforcing resin that reinforces the joint between the rigid flexible and the FPC drawer or the joint between the rigid flexible and the frame so as to block a part of the area where the adhesive is not applied.
- Applied camera module Applied camera module.
- the adhesive is a UV thermosetting resin that is cured by UV (Ultra Violet) irradiation and heating, or a thermosetting resin that is cured only by heating.
- the reinforcing resin is a UV curable resin that is cured by irradiation with UV (Ultra Violet), a UV thermosetting resin that is cured by UV and heating, or a thermosetting resin that is cured only by heating.
- the adhesive is applied to either the frame or the rigid flexure among the contact surfaces between the frame and the rigid flexure (1) to (9) The camera module as described in.
- the camera module according to (1) wherein the rigid flexible includes a substrate on which a solid-state imaging device is mounted and a flexible plate including a drawer portion. (12) The camera module according to (1), wherein a mold is included between the rigid flexible and the frame. (13) The camera module according to (1), wherein the frame is configured integrally with the lens unit.
- a lens unit Rigid flex with a solid-state image sensor and joined FPC (Flexible Print Circuit) drawer
- FPC Flexible Print Circuit
- a lens unit Rigid flex with a solid-state image sensor and joined FPC (Flexible Print Circuit) drawer, A frame connecting the lens unit and the rigid flex and having an opening; Adhered by an adhesive applied excluding a part of a range including a joint portion with the FPC drawer portion of the contact surface of the frame and the rigid flexible, Reinforcing resin that reinforces the joint between the rigid flexible and the FPC drawer or the joint between the rigid flexible and the frame so as to block a part of the area where the adhesive is not applied.
- the imaging device to be applied.
- a lens unit (16) a lens unit; Rigid flex with a solid-state image sensor and joined FPC (Flexible Print Circuit) drawer, A frame connecting the lens unit and the rigid flex and having an opening; Adhered by an adhesive applied excluding a part of a range including a joint portion with the FPC drawer portion of the contact surface of the frame and the rigid flexible, Reinforcing resin that reinforces the joint between the rigid flexible and the FPC drawer or the joint between the rigid flexible and the frame so as to block a part of the area where the adhesive is not applied. Electronic equipment to be applied.
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- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
図1は、従来のカメラモジュールの外観斜視図および側面断面図である。より詳細には、図1の左部は、カメラモジュールの外観斜視図であり、図1の右部は、カメラモジュールの側面断面図である。尚、図1の右部である側面断面図は、図1の左部における外観斜視図におけるABで示される直線におけるAB断面である。
図2は、本技術を適用したカメラモジュールの第1の実施の形態の外観斜視図、および外観斜視図におけるAB断面となる側面断面図である。尚、図2のカメラモジュールにおいて、図1のカメラモジュールにおける構成と、同一の機能を備えた構成については、同一の名称、および同一の符号を付しており、その説明は適宜省略するものとする。
次に、図3のフローチャートを参照して、図2のカメラモジュールの製造工程について説明する。
以上においては、リジットフレキ36とフレーム34との接着部位であって、かつ、補強樹脂37を塗布しない一辺の、一辺よりも短い範囲にフレーム樹脂35を塗布しない構成とし、補強樹脂37を後から塗布する例について説明してきたが、最終的に補強樹脂37が塗布される部位の一部にフレーム樹脂35を塗布しないようにすれば、他の構成でもよい。
以上においては、フレーム34とリジットフレキ36とを接続するにあたってフレーム樹脂35を用いる例について説明してきたが、フレーム34とリジットフレキ36との間にモールドを利用するようにしてもよい。この場合、図7で示されるように、モールド71のうち、FPC引き出し部36aに対応する位置であって、後段の処理において、補強樹脂37が塗布されない部位に対応する一部にフレームと接しない部位を設けるようにする、またはフレーム樹脂35を塗布しないことで、通気孔51が形成されるようにする。
以上においては、通気孔51が1か所設けられる例について説明してきたが、フレーム34とリジットフレキ36とが接着される面の一部であって、後段の工程において補強樹脂37が塗布される範囲であれば、通気孔51は複数個所に構成されるようにしてもよい。
以上においては、フレーム34とリジットフレキ36とが接着される面の一部であって、後段の処理により、補強樹脂37が塗布される領域の一部に、フレーム樹脂35を塗布しない領域を設けることで、フレーム34とリジットフレキ36との接着部位に通気孔51を形成させるようにした例について説明してきた。
次に、図10のフローチャートを参照して、図9のカメラモジュールの製造工程について説明する。
以上においては、リジットフレキ36とフレーム34との接着部位であって、かつ、補強樹脂37を塗布しない部位の一部にフレーム樹脂35を塗布しない構成とし、粘着テープ101を後から貼り付ける例について説明してきたが、最終的にフレーム樹脂35を塗布しない部位に粘着テープ101を後段の工程で貼り付けるようにすれば、他の構成でもよい。
以上においては、フレーム34とリジットフレキ36とを接続するにあたってフレーム樹脂35を用いる例について説明してきたが、フレーム樹脂35の代わりにモールド71を利用するようにしてもよい。この場合、図13で示されるように、モールド71のうち、補強樹脂37が塗布されない部位の一部がフレーム34と接しない部位を設けるようにすることで、通気孔51が形成されるようにする。
以上においては、フレーム34とリジットフレキ36との当接部位の一部にフレーム樹脂35を塗布しないようにすることで、通気孔51を形成する例について説明してきたが、後段の処理で粘着テープ101が貼り付けられる部位であれば、いずれに通気孔51が形成されてもよい。
以上においては、フレーム34をフレーム樹脂35によりリジットフレキ36と接着し、さらに、フレーム34とレンズユニット31とをレンズユニット締結樹脂33により接着することで、レンズユニット31をリジットフレキ36に固定する構成例について説明してきた。しかしながら、レンズユニット31とフレーム34とが一体となった構成のレンズユニット31により、レンズユニット31とリジットフレキ36とを直接接着するようにしてもよい。
以上においては、フレーム34が一体となった構成のレンズユニット31を、リジットフレキ36に直接接着するようにした例について説明してきたが、さらに、フレーム34が一体となったレンズユニット31とリジットフレキ36との接着を完了した後、そのフレーム部31aに設けられた通気孔51を接着テープにより塞ぐようにしてもよい。
上述したカメラモジュールは、例えば、デジタルスチルカメラやデジタルビデオカメラなどの撮像装置、撮像機能を備えた携帯電話機、または、撮像機能を備えた他の機器といった各種の電子機器に適用することができる。
(1) レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
カメラモジュール。
(2) 前記接着剤が塗布されていない範囲により、前記フレームと前記リジットフレキとの間の空間における通気孔が形成される
(1)に記載のカメラモジュール。
(3) 前記補強樹脂は、前記通気孔を塞ぐように塗布される
(2)に記載のカメラモジュール。
(4) 前記通気孔は、方形状の前記フレームの1辺の長さよりも短い範囲である
(2)または(3)に記載のカメラモジュール。
(5) 前記通気孔は、複数箇所に形成される
(2)乃至(4)のいずれかに記載のカメラモジュール。
(6) 前記接着剤は、UV(Ultra Violet)の照射、および加熱により硬化するUV熱硬化樹脂、または、加熱のみにより硬化する熱硬化樹脂である
(1)乃至(5)のいずれかに記載のカメラモジュール。
(7) 前記補強樹脂は、UV(Ultra Violet)の照射で硬化するUV硬化樹脂、UVおよび加熱により硬化するUV熱硬化樹脂、または、加熱のみにより硬化する熱硬化樹脂である
(1)乃至(6)のいずれかに記載のカメラモジュール。
(8) 前記補強樹脂は、遮光樹脂である
(1)乃至(7)のいずれかに記載のカメラモジュール。
(9) 前記補強樹脂は、25℃において、弾性率が100MPa乃至10000MPaである
(1)乃至(8)のいずれかに記載のカメラモジュール。
(10) 前記接着剤は、前記フレームと、前記リジットフレキとの当接面のうち、前記フレーム上、または、前記リジットフレキ上のいずれかに塗布される
(1)乃至(9)のいずれかに記載のカメラモジュール。
(11) 前記リジットフレキは、固体撮像素子を搭載した基板と、引き出し部を含むフレキ板とを含む
(1)に記載のカメラモジュール。
(12) 前記リジットフレキと、前記フレームとの間に、モールドを含む
(1)に記載のカメラモジュール。
(13) 前記フレームは、前記レンズユニットと一体の構成である
(1)に記載のカメラモジュール。
(14) レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含むカメラモジュールの製造方法において、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着した後、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
カメラモジュールの製造方法。
(15) レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
撮像装置。
(16) レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
電子機器。
Claims (16)
- レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
カメラモジュール。 - 前記接着剤が塗布されていない範囲により、前記フレームと前記リジットフレキとの間の空間における通気孔が形成される
請求項1に記載のカメラモジュール。 - 前記補強樹脂は、前記通気孔を塞ぐように塗布される
請求項2に記載のカメラモジュール。 - 前記通気孔は、方形状の前記フレームの1辺の長さよりも短い範囲である
請求項2に記載のカメラモジュール。 - 前記通気孔は、複数箇所に形成される
請求項2に記載のカメラモジュール。 - 前記接着剤は、UV(Ultra Violet)の照射および加熱により硬化するUV熱硬化樹脂、または、加熱のみにより硬化する熱硬化樹脂である
請求項1に記載のカメラモジュール。 - 前記補強樹脂は、UV(Ultra Violet)の照射で硬化するUV硬化樹脂、UVおよび加熱により硬化するUV熱硬化樹脂、または、加熱のみにより硬化する熱硬化樹脂である
請求項1に記載のカメラモジュール。 - 前記補強樹脂は、遮光樹脂である
請求項1に記載のカメラモジュール。 - 前記補強樹脂は、25℃において、弾性率が100MPa乃至10000MPaである
請求項1に記載のカメラモジュール。 - 前記接着剤は、前記フレームと、前記リジットフレキとの当接面のうち、前記フレーム上、または、前記リジットフレキ上のいずれかに塗布される
請求項1に記載のカメラモジュール。 - 前記リジットフレキは、固体撮像素子を搭載した基板と、引き出し部を含むフレキ板とを含む
請求項1に記載のカメラモジュール。 - 前記リジットフレキと、前記フレームとの間に、モールドを含む
請求項1に記載のカメラモジュール。 - 前記フレームは、前記レンズユニットと一体の構成である
請求項1に記載のカメラモジュール。 - レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含むカメラモジュールの製造方法において、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着した後、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
カメラモジュールの製造方法。 - レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
撮像装置。 - レンズユニットと、
固体撮像素子を搭載し、FPC(Flexible Print Circuit)引き出し部が接合されたリジットフレキと、
前記レンズユニットと、前記リジットフレキとを接続し、開口部を有するフレームとを含み、
前記フレームと、前記リジットフレキとの、当接面のうち、前記FPC引き出し部との接合部を含む範囲の一部を除いて塗布される接着剤により接着され、
前記リジットフレキと、前記FPC引き出し部との接合部、または、前記リジットフレキと、前記フレームとの接合部を補強する補強樹脂が、前記接着剤が塗布されていない一部の範囲を塞ぐように塗布される
電子機器。
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