Source: http://www.google.com/patents/US20020057468?dq=6188988
Timestamp: 2015-07-28 20:34:18
Document Index: 776828935

Matched Legal Cases: ['art 8', 'art 7', 'art 19', 'art 19', 'art 19', 'art 19', 'art 19', 'art 17', 'art 19', 'art 24', 'art 211', 'art 212', 'art 211', 'art 211', 'art 212', 'art 221', 'art 221', 'art 221', 'art 235', 'art 235', 'art 212', 'art 212', 'art 212']

Patent US20020057468 - Image pickup apparatus, method thereof, and electric apparatus - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn image pickup apparatus includes a first connector arranged on a wiring board, a second connector including an optical lens and being engageable with the first connector, and a photoelectric conversion module on which light is incident from the optical lens, the photoelectric conversion module being...http://www.google.com/patents/US20020057468?utm_source=gb-gplus-sharePatent US20020057468 - Image pickup apparatus, method thereof, and electric apparatusAdvanced Patent SearchPublication numberUS20020057468 A1Publication typeApplicationApplication numberUS 09/986,909Publication dateMay 16, 2002Filing dateNov 13, 2001Priority dateNov 14, 2000Also published asCN1157052C, CN1354596A, DE60137676D1, EP1220324A2, EP1220324A3, EP1220324B1, EP1220324B8, US7304684Publication number09986909, 986909, US 2002/0057468 A1, US 2002/057468 A1, US 20020057468 A1, US 20020057468A1, US 2002057468 A1, US 2002057468A1, US-A1-20020057468, US-A1-2002057468, US2002/0057468A1, US2002/057468A1, US20020057468 A1, US20020057468A1, US2002057468 A1, US2002057468A1InventorsMasao Segawa, Michiko Ooishi, Jun Karasawa, Tomoyuki Sasaki, Jun AsagaOriginal AssigneeMasao Segawa, Michiko Ooishi, Jun Karasawa, Tomoyuki Sasaki, Jun AsagaExport CitationBiBTeX, EndNote, RefManPatent Citations (7), Referenced by (101), Classifications (28), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetImage pickup apparatus, method thereof, and electric apparatus
DETAILED DESCRIPTION OF THE INVENTION [0028]FIG. 1 is a cross-sectional view showing the structure of a camera module integrated with a lens, which is incorporated in an image pickup apparatus according to the first embodiment. In one side (back surface side) of the module substrate 1 comprising a double-sided wiring board, a signal processing IC (DSP) 2 is banded by flip-chip assembly, and chip components 3 and a connector 4 for connection to a main board not shown are mounted by soldering. [0029] Meanwhile, in the other side (front surface side) of the module board 1, chip components 3 are mounted by soldering, and a photoelectric conversion module 6 incorporating an optical lens 5 is assembled. [0030]FIG. 2 is a cross-sectional view of a main part of a camera module. The photoelectric conversion module 6 has a flexible board 8, the bare chip of a photoelectric conversion element 7, and an optical glass plate 11. The bear chip may be a CCD (Charge Coupled Device), a CMOS sensor, or the like. This bare chip is applied to flip chip interconnection method, and bonded to the surface of a flexible board 8 through a bump 9 using anisotropic conductive paste. [0031] The flexible board 8 is a board having a thickness of about several ten to several hundred μm and made of insulating material, for example, polyimide, polyester, liquid crystal polymer, or the like. In addition, total 30 external connection terminals of the flexible board 8 are arranged in two parallel rows at a pitch of about 0.5 mm. The optical glass plate 11 is fixed to the other surface of the flexible board 8 with an adhesive agent and opposes the photoelectric conversion element 7. The adhesive agent may be of the type that hardens when set in a normal-temperature atmosphere or when applied with light. A non-flexible board may replace the flexible board 8, provided that if is compatible with connectors. [0032] An opening part 8 a is formed at least at a part of the area of the flexible board 8 that is sandwiched between the optical glass plate 11 and the photoelectric conversion element 7 of the photoelectric conversion module 6. The photoelectric conversion part 7 a of the photoelectric conversion element 7 is arranged so as to face this opening 8 a. The optical glass plate 11 is fixed to the surface of the flexible board 8, which faces away from the photoelectric conversion element 7. The glass plate 11 closes the opening 8 a. A thin film formed of a single layer or stacked layers is provided on the surface of the glass plate 11, to prevent refection or provide an optical filter. Thus, the thin film imparts desired optical characteristics to the glass plate 11. [0033] A photoelectric conversion module 6 which thus comprises the photoelectric conversion element 7, the flexible board 8, and the optical glass 11 formed without using soldering material can be assembled without adding much heat to the photoelectric conversion element 7. Note that it is possible to use ultra sonic flip chip bonding or junction based on photosensitive resin. [0034] At the part of the module board 1, which surrounds the photoelectric conversion element 7, a connector (first connector) 12 of surface-mount type is mechanically fixed to the electrodes provided on the module board 1 by soldering based on reflow. Spring electrodes 15 which the connector 12 has are electrically connected to electrodes at the surface of the module board 1 by soldering and is pressed into contact with the external connection terminal 8 b which the flexible board 8 has at the spring part, thereby to attain electric connection is attained. [0035] A lens holder 13 holds a lens 5. The lens holder 13 is a hollow cylinder that serves as a lens-barrel 18 for the lens 5. The lower end of the lens holder 13 in the figure forms a socket 19 and is engaged with the connector 12, as will be described later. The opening of the socket 19 is provided on the extended line of the optical axis of the lens 5. [0036] The opening of the socket 19 is engaged with the connector 12 through an area of the flexible board 8 including the external connection terminals of the flexible board 8. By this engagement, the flexible board 8 is deformed along the outer shape of the connector 12. The socket 19 has a pressing part 19 a. The pressing part 19 a presses the connection terminal 8 b of the flexible board 8 against the spring electrodes 15 of the connector 12. The terminal 8 b is thereby firmly connected to the electrodes 15. This ensures electrical conduction between the board 8 and the connector 12. [0037] The spring electrodes 15 are biased in the direction opposite to the direction in which the pressing part 19 a exerts a force. The socket 19 and the connector 12 therefore remain in electrical connection. [0038] The optical glass 11 is included in the socket part 19. The optical glass 11 is let collide with the inner wall of the socket 19, to position the lens 5 and the photoelectric conversion element 7 at the optical distance in the optical axis direction. The socket 19 incorporates a diaphragm 20. The diaphragm 20 has an opening and covers a part of the optical glass plate 11. [0039] The lens holder 13 engaged with the connector 12 fixes and maintains the lens 5. Further, the lens holder 13 mechanically fixes the lens 5 so as to oppose to the photoelectric conversion element 7 and simultaneously presses the external connection terminal 8 b of the flexible board 8 and the electrode pattern of the module board 1 into contact with each other through the spring electrodes 15, thereby electrically connecting the flexible board 8 to the module board 1. [0040] The incidence end of the lens 5 may need to be used together with a diaphragm. If this is the case, the lens holder 13 is designed to function as a diaphragm. That is, that open end that the incidence surface of the lens 5 opposes is used as a diaphragm. [0041] A bump 9 for connection, which is formed on the electrode pad of the photoelectric conversion element 7, is a sphere made of Au and having a diameter of about several ten to hundred and several ten μm. For example, the bump 9 is provided by electric plating, a wire bonding method, a transfer method, or the like. For example, a glass epoxy wiring board (FR-4) subjected to multi-layer wiring of four layers, a ceramic board, a glass wiring board, or the like can be used for the module board 1. [0042] Next, a method of manufacturing the camera module shown in FIG. 1 will be explained with reference to FIGS. 3A to 3D. [0043] As shown in FIG. 3A, a signal processing IC 2 (DSP) or the like is previously flip chip-connected to the back side of the module board 1 through an anisotropic conductive adhesive film 15. A bump 9 is previously formed on the electrode of the signal processing IC 2. The anisotropic conductive adhesive film 15 can be provided by pattern-applying a paste-like material by a dispense method, a screen print method, or the like, or by adhering a sheet-like material thereto. This anisotropic conductive film 15 is thermosetting epoxy resin. The surface where the bump 9 is provided is pressed against the anisotropic conductive film 15, to achieve thermocompression bonding (for about 10 seconds at 200� C.). In this manner, the electrodes of the signal processing IC 2 and the module board 1 are connected by the bump 9, to obtain electric connection. [0044] Next, as shown in FIG. 3B, the chip component 3 and the connector 4 are mounted on the front and back surfaces of the module board 1, respectively, by reflow soldering or the like. At this time, the connector 12 is also reflow-soldered to the module board 1, simultaneously with the chip component 3. [0045] As shown in FIG. 3C, the external connection terminal 8 b of the flexible board 8 is positioned on the connector 12, so as to correspond to the spring electrodes 15. [0046] As shown in FIG. 3D, the socket 19 of the lens holder 13 is forced into the connector 12 through the flexible board 8. At this time, the external connection terminal 8 b of the flexible board 8 is pressed against the side of the spring electrodes 15 of the connector 12, and the elastic force of the spring electrodes 15 acts against the pressing force, thereby to electrically connect the external connection terminal 8 b and the spring electrodes 15 to each other. [0047] At this time, the inside of the lens holder 13 is let contact the surface of the optical glass 11 of the photoelectric conversion module 6, so that the lens 5 and the photoelectric conversion element 7 are opposed to each other while an optical distance therebetween is maintained at a predetermined value. [0048] The external terminal of the flexible board 8 may be previously bent in accordance with the shape of the connector 12, when it is mounted on the module board 1. Alternatively, it may be bent by the lens holder 13 when the lens holder 13 is engaged with the connector. In addition, the terminal may be attached to the connector 12 after previously adhering the flexible board 8 to the lens holder 13 with use of an adhesive agent. [0049] According to the image pickup apparatus according to the present embodiment, the photoelectric conversion element 7 can be electrically connected very easily in a short time to the module board 1 to which the optical system having the lens 5, the chip component, and the like are reflow-connected, by mechanical press-contact based on the socket part 19 of the lens holder 13 and the spring electrodes 15 of the connector 12. Therefore, camera modules each having a small size can be provided with high yield. [0050] The photoelectric module 6 does not need to be laid on the back of the module board 1 as the conventional module. This is because the connector 12 has been incorporated into the module 6 before the module 6 is amounted on the module board 1. Additionally, the components of the module 6 can be freely arranged, which renders the module 6 small. [0051] The photoelectric module 6 is laid on the module board 1 after the re-flow step has been performed on the board 1. It is therefore unnecessary to apply excessive heat to the optical glass plate 11. This helps to enhance the yield of the camera module. [0052] The connector 12 uses plastic material such as polypropylene or the like as base material, and the spring electrodes 15 have a thickness of about 0.1 to 0.3 mm and are made of phosphor bronze or beryllia copper. The surface thereof is subjected to plating processing with nickel and gold, to reduce the contact resistance. In addition, the contact pressure at which the spring electrodes 15 contacts the external terminal of the photoelectric conversion module 6 is designed to be about 40 to 100 gf/pin. [0053] The connector 12 has a frame-like shape. The height of the lens can be minimized by adjusting the back side of the photoelectric conversion element 7 so as to contact the module board 1. [0054]FIG. 4 is a view showing a modification of the present embodiment of the present embodiment. In a camera module according to the present modification, fixture, optical positioning, and electric connection of the lens holder 13 can be ensured with high precision, by providing a pin 16 and an opening part 17 engaged with the pin, for the socket part 19 and the connector 12 of the lens holder 13. [0055] The flexible board 8 may have a hole that allows passage of the pint 16. In this case, the optical axis of the lens holder 13 can be aligned with that of the connector 12, without any positional adjustment of the lens holder 13 or the connector 12. [0056]FIGS. 5 and 6 are views showing another modification of the present embodiment. FIG. 5 is a cross-sectional view showing a modification of a method of fixing a connector 22 and a lens holder 13 a. In a camera module according to the present modification, the connector 22 is formed in a frame-like shape in which an opening part 24 where a photoelectric conversion element 7 is inserted is provided at the center. Spring electrodes 15 which are deformed in the thickness direction (in the vertical direction in FIG. 5) are provided in parallel respectively at four edge parts. [0057] In addition, a positioning boss 25 and a fixing spring 26 are provided so as to stand at each of four corner parts of the frame-like part. Of the four positioning bosses 25, only one has a different diameter the other bosses. It is possible to engage them with the connector 22 only in case where the direction of the lens holder 13 a is in a predetermined direction. [0058] The fixing springs 26 are respectively provided with engaging holes 27. Projections 28 formed on the lens holder 13 a are engaged in these engaging holes 27, so that the lens holder 13 a is fixed at predetermined positioning precision. [0059]FIGS. 7A and 7B shows further another modification of the present embodiment. FIGS. 7A and 7B are cross-sectional views in the directions perpendicular to each other. In the camera module according to the present modification, engagement between the lens holder 13 b and the module board 1 is achieved at the position indicated in FIG. 7B. In the cross-sectional view shown in FIG. 7A rotated by 90 degrees therefrom, the engagement between the lens holder 13 b and the module board 1 is not achieved. [0060] In the cross-sectional view shown in FIG. 7A, the surface of the lens holder 13b, which is opposed to the module board 1, has a width substantially equal to the width of the connector 12 a and is not formed to extend to he side surface of the connector 12 a as a connection part of the connector 12 a (where an external lead terminal is formed). In contrast, in the cross-sectional view shown in FIG. 7B, the surface of the lens holder 13, which is opposed to the module board 1, is formed to extend to the side surface of the connector 12 a. This part is engaged with the connector 12 a with the external terminal of the flexible board 8 set inside. In this manner, mechanical connection is achieved, and it is possible to attain electric connection between the external connection terminal 8 b and the spring electrodes 15 of the connector 12 a. [0061] As described above, in the camera module according to the present embodiment, only two edges are used for a connection part from the photoelectric conversion module 6 to the module board 1 of the external terminal of the photoelectric conversion module 6, and a structure in which an engagement part with the lens holder 13 is provided is formed at the part of the connector 12 a of the other two edges of the connection part. In this manner, down-sizing can be achieved in comparison with the structure which achieves engagement by four edges. [0062]FIG. 8 is a cross-sectional view showing the structure of a camera module according to further another modification of the present embodiment. In the camera module according to the present embodiment, a connector 23 made of conductive rubber is used in place of the connector 12 described above, and a photoelectric conversion module 6 a is used in place of the connector 12. The external connection terminal of the photoelectric conversion module 6 a is connected to the electrode pattern of the module board 1 through the connector 32. [0063] The connector 32 made of conductive rubber is formed by burying a spring made of brass material or the like subjected to plating processing of nickel and gold, as conductive material, in elastic silicone rubber. It is therefore possible to attain electric conductance with anisotropy by compressive deformation of the silicone rubber and spring. [0064] Although the connector 32 made of conductive rubber has a relatively high connection resistance (about several ten to several hundred mΩ), it enables fine wiring at a pitch of 50 μm and down-sizing to a width of about 1 mm. At the time of connection, a conductive rubber connector 32 is provided between the lens holder 33 and the module board 1, to attain electric connection by a compression force between the lens holder 33 and the module board 1. [0065]FIG. 9 is a cross-sectional view showing the structure of a camera module integrated with a lens, which is incorporated in an image pickup apparatus according to a second embodiment of the present invention. In FIG. 9, the same functional parts as those of FIGS. 1 and 2 will be denoted at the same reference symbols, and detailed explanation thereof will be omitted herefrom. [0066] A signal processing IC 2 is mounted on one surface (front) of the module board 1 by means of flip-chip junction. The connector 12 and the chip components 3 are mounted on that surface of the board 1, too. A rubber sheet 35 covers the upper surface of the signal processing IC 2. A photoelectric transducer element 7 is provided on the rubber sheet 35. The lens holder 13 holds an optical lens 5. The lens holder 13 is fitted into the connector 12. The photoelectric module 6 is thereby clamped between the connector 12 and the lens holder 13. In addition, the lens holder 13 can be connected to the connector 12 while maintaining the optical distance between the optical lens 5 and the photoelectric conversion element 7. [0067] Meanwhile, at a position immediately below the signal processing IC 2 in the other side (back surface side) of the module board 1, a connector 4 for connection to the main board is mounted by soldering. In addition, the chip component 3 is installed at a different position. [0068] In the image pickup apparatus according to the present embodiment, the same advantages as those of the embodiment described above can be obtained, and the signal processing IC 2 and the photoelectric conversion module 6 are constructed in a layered structure through a rubber sheet 35, in the side of the front surface of the module board 1. Therefore, no dead space exists on the back surface of the module board 1, contributing to total down-sizing. In addition, the degree of freedom increases when mounting a connector 4 and chip components 3 on the module board 1. Therefore, the entire apparatus can be formed to be very compact. In addition, the optical lens 13 can be connected to the connector while maintaining the optical distance to the photoelectric conversion element due to compression deformation of the elastic material. [0069]FIG. 10 is a perspective view of a portable telephone (portable apparatus) according a third embodiment of this invention. The telephone incorporates an image pickup apparatus according to any one of the embodiments described above. [0070] The portable telephone apparatus according to the present embodiment comprises an image pickup device 111 and a display section 112, as an image transmission function, in addition to a general telephone function based on voices. The portable phone apparatus comprises two cases 114 a and 114 b which can be opened by a hinge 113. One case 114 a is provided with an input microphone 115 and a keyboard 116. In addition, the other case 114 b is provided with an antenna 117, a speaker 118, a liquid crystal display section 112, and an image pick up apparatus 111. Any of the image pickup apparatuses explained in the above embodiments is used for the image pickup apparatus 111. [0071] According to this portable phone apparatus, it is possible to pick up an image with excellent image quality by the image pickup apparatus described above. Note that similar advantages can be obtained if an image pickup apparatus (small-size optical part) according to any of the embodiments described above is mounted on a note-type personal computer or the like. [0072] In the image pickup apparatus according to this embodiment, the photoelectric module is not directly connected to the module board. Rather, a connector electrically connects the module to the board. Hence, the apparatus can be manufactured, without performing a heating process on the photoelectric module. The photoelectric module can attain high quality. Additionally, the components can be mounted on the module board at high density, successfully rendering the image pickup apparatus as small as desired. The electric apparatus that incorporates the image pickup apparatus can be have a simple internal structure. If any portable electric apparatus that incorporates the image pickup apparatus can be easily manufactured. [0073]FIGS. 11A and 11B show a camera module 200 integrated with a lens, which is incorporated in the image pickup apparatus according to a fourth embodiment of the present invention. FIG. 11A is a plan view showing a lens holder 210, and FIG. 11B is a plan view showing a connector 240. In addition, FIGS. 12A and 12B are views showing cross-sections of the camera module 200. FIG. 12A is a cross-sectional view cut along the position of the line I-I′ in FIG. 11B, observed in the arrow direction. FIG. 12B is a cross-sectional view cut along the line II-II′ in FIG. 11B, observed in the arrow direction. [0074] The camera module 200 comprises a lens holder 210, a photoelectric conversion module 220, a module board 230, and a connector 240. [0075] The lens holder 210 comprises a cylindrical lens-barrel part 211 and a plate-like plug part 212 attached to this lens-barrel part 211. An optical lens 213 is attached to the lens-barrel part 211. An opening part is provided in the plug part 212 and is provided on the extended line of the optical axis of the optical lens 213. A flat part in the periphery of this opening is opposed to an area of the flexible board 221 that includes an external connection terminal, and is used for installation of a connector 240 which will be described later. In case where a diaphragm is required for the optical lens 213, the lens holder 210 may be provided with a diaphragm function. [0076] The photoelectric conversion module 220 comprises a flexible board 221. The flexible board 221 is formed of a base board made of polyimide and having a thickness of 25 μm, and a gold-plated copper wire is formed through an adhesive agent layer. On the back surface of the base board, a cover film layer having a thickness of about 200 μm is formed through an adhesive agent layer. So constructed, the flexible board 221 is rigid to some degree, preventing positional changes of the sensor. Note that the material of the flexible board 221 may be polyester, liquid crystal polymer, or the like in place of polyimide and is not limited hitherto. [0077] An opening part 221 a is formed at the center of the flexible board 221. In the side of the back surface of the flexible board 221, a bare chip of a photoelectric conversion element 222 such as a CCD, a CMOS sensor, or the like is installed, and the photoelectric conversion part of the photoelectric conversion element 222 is arranged so as to face the opening part 221 a. This photoelectric conversion element 222 is mounted by flip chip assembly to the flexible board 221 through a bump (external connection terminal) 224 by an anisotropic conductive adhesive film 223. In addition, in the bump electrode 226 of the flexible board 221, for example, total thirty terminals are arranged in two parallel rows at a pitch of about 0.5 mm. [0078] Optical glass 225 is fixed to the surface of this flexible board 221, by an adhesive agent, so as to face the opening part 221 a and oppose to the photoelectric conversion element 222. On the surface of the optical glass 225, there is provided a thin film made of one layer or multiple layers, in correspondence with a required optical characteristic. [0079] Further, an external connection terminal 226 like an electrode pad used for connection to the outside is formed at an outer circumferential part of the flexible board 221 in the side of its back surface. [0080] Since the photoelectric conversion module 220 does not use solder material, the apparatus can be assembled without applying much heat to the photoelectric conversion element 222. It is possible to make junction by flip chip bonding based on ultrasonic junction or by photosensitive resin. [0081] A bump 224 for connection, which is formed on the electrode pad of the photoelectric conversion element 222 is a gold ball having a diameter of several ten to hundred and several ten μm. The bump 224 is provided by electric plating, a wire bonding method, or a transfer method. [0082] The module board 230 comprises, for example, a double-sided wiring board 231 using a glass epoxy board (FR-4) subjected to multi-layer wiring of six layers, a ceramic board, a glass wiring board, or the like. In the side of the back surface of the double-sided wiring board 231, chip components 232 and a connector 233 for external connection are mounted by soldering. In addition, in the side of the front surface of the double-sided wiring board 231, a signal processing IC (DSP) 234 mounted by flip chip bonding, a connection part 235, and spring electrodes 236 soldered to the connection part 235 are provided. [0083] At the position of the module board 230 which surrounds the photoelectric conversion element 222, a connector 240 of a surface mount type is soldered to an electrode on the surface of the module board 230, by reflow soldering, and is thus mechanically fixed thereto. [0084] As shown in FIG. 11B, insertion guide posts 241 are provided respectively at four corners of the connector 240. The connector 240 has two positioning pins 242 and 243 that have different diameters. The positioning pins 242 and 243 are diametrically opposite to each other across the opening. The insertion guide posts 241 for placing the lens holder 210 and the module board 230 at desired positions. The pins 242 and 243 cooperate to prevent the operator to inset the lens holder 210 in a wrong direction. [0085] The connector 240 is provided with a lens holder fixing metal fitting 244 for fixing the lens holder 210, and a part of the fitting is mechanically fixed to the module board 230 by soldering. [0086] The camera module 200 thus constructed is assembled by assembling steps shown in FIGS. 13A to 13E. Note that FIGS. 13A to 13E are cross-sectional views cut along the position II′-I′ and observed in the arrow direction. [0087] As shown in FIG. 13A, a signal processing IC 234 and the like are previously mounted by flip chip bonding through an anisotropic conductive adhesive film on the surface of a module board 230. A bump 234 a is previously formed at an electrode of the signal processing IC 234. The anisotropic conductive adhesive film may be provided as a paste-like material by pattern-applying it a dispense method, a screen printing method, or the like or by adhering a sheet-like material. The anisotropic adhesive film has been made by kneading metal particles into thermosetting epoxy resin. [0088] The surface where the bump 234 a is provided is pressed against the anisotropic conductive adhesive film (for about 10 seconds at 200� C.) to achieve thermocompression bonding. In this manner, the electrodes of the signal processing IC 234 and the module board are connected by the bump 234 a, thereby to attain electric connection therebetween. By press-contact using an insulating adhesive film in place of an anisotropic conductive adhesive film, the electrodes of the signal processing IC 234 and the module board 230 may be connected to each other. [0089] Next, as shown in FIG. 13B, chip components 232 and an external connector 234 are mounted on the backside of the module board 230. As FIG. 13B shows, the connector 240 is fastened to the module board 230 by means of re-flow soldering. The connector 240 surrounds the signal processing IC 234 mounted on the module board 230. [0090] As shown in FIG. 13C, the external connection terminal 226 of the flexible board 221 is arranged above the connector 240 so as to correspond to spring electrodes 236 of the connector 240, with use of positioning pins 242 and 243 and a positioning hole 211 a, above the connector 240. [0091] Next, as shown in FIG. 13D, the lens holder 210 which fixes and holds the optical lens 213 is inserted to be pressed against the spring electrodes of the connector 240 through the flexible board 221. At this time, the lens holder fixing metal fitting 244 spreads outward with an elastic force. [0092] As shown in FIG. 13E, as the plug part 212 of the lens holder 210 is situated below the hook-like shape oriented downward to the inside, the displacement of the lens holder fixing metal fitting 244 returns, and the upward stress transmitted through the flexible board 221 by the spring electrodes 236 is restricted by the hook-like part of the lens holder fixing metal fitting 244 from the upper side. [0093] At this time, the inside of the lens holder 210 is let contact the surface of the optical glass 225 of the photoelectric conversion module 220, the optical lens 213 and the photoelectric conversion element 222 are arranged so as to oppose each other while the optical distance therebetween is maintained at a predetermined value. [0094] The spring electrodes 236 are electrically connected to the electrodes on the surface of the module board 230 by soldering, and at the spring parts, the spring electrodes is pressed into contact with the external connection terminal 226, thereby to attain electric connection. [0095] At this time, a reaction force is received through the external connection terminal 226, and simultaneously, the upper surface of the plug part 212 is held down by the lens holder fixing metal fitting 244. In this manner, the press-contact force between the spring electrodes 236 and the flexible board 221 is ensured so that mechanical and electric connection is maintained. [0096] As has been described above, according to the camera module 200 according to the present embodiment, the photoelectric conversion element 222 can be electrically connected very easily, in a short time, to the module board 230 to which the optical system having a lens, the chip components 232, and the like are reflow-connected, by mechanical press-contact between the plug part 212 of the lens holder 210 and the spring electrodes 236 of the connector 240. It is therefore possible to provide camera modules having a small size with excellent yield. [0097] In addition, since an area where parts can be mounted exists inside the connector 240, a stack structure with the photoelectric conversion element 222 can be constructed by flip chip bonding the signal processing IC 234 at this area. Therefore, there is a high advantage in down-sizing of the module board area. [0098] In addition, stress can be prevented from being concentrated on the lens holder 210 and the lens holder fixing metal fitting 244, by providing the insertion guide posts 241 of the lens holder 210 at four corners of the connector 240 and by further arranging the outer shape thereof in the outside of the lens holder 210 and the lens holder fixing metal fitting 244. [0099] The structure is arranged such that a part of the outer circumference of the lens holder 210 is guided by the insertion guide posts 241 at the four corners when inserting the lens holder 210. In this manner, the mechanism is constructed such that the lens holder can be simply and securely inserted can be even in case where an operator cannot directly observe the positioning pins 242 and 243. Therefore, the productivity can be improved. [0100] Further, the outer sides of the insertion guide posts 241 are arranged outside any of the lens holder 210 and the lens holder fixing metal fitting 244. In this manner, for example, it is possible to avoid at least the stress being concentrated only on the lens holder fixing metal fitting 244 when interference with an external casing occurs at the time of drop impact, and to prevent image quality from being reduced due to a position shift of the optical lens 213. [0101] The image pickup apparatus according to the present embodiment may be incorporated in the portable phone apparatus shown in FIG. 10. [0102] Further, if positioning with higher precision is necessary for the optical distance, a screw structure may be provided for both of a cylindrical bulk to which the optical lens 213 is attached and the lens-barrel of the lens holder, thereby to construct a positioning mechanism. [0103] Of course, the present invention is not limited to the embodiments described above but may be variously modified without deviating from the scope of the present invention. [0104] Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiment shown and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5130804 *Dec 28, 1990Jul 14, 1992Konica CorporationCompact recording apparatus with functional components mounted on a substrateUS5153734 *Nov 26, 1990Oct 6, 1992Fuji Photo Film Co., Ltd.Solid state image pickup device mounting structureUS5191224 *Dec 13, 1990Mar 2, 1993Hitachi, Ltd.Wafer scale of full wafer memory system, packaging method thereof, and wafer processing method employed thereinUS5861654 *Nov 28, 1995Jan 19, 1999Eastman Kodak CompanyImage sensor assemblyUS20020044215 *May 13, 1997Apr 18, 2002Yuichi TakagiSolid-state imaging apparatus and camera using the sameUS20030025824 *May 21, 1998Feb 6, 2003Koji IshikawaImage pickup device incorporating a position defining memberUS20030137595 *May 13, 1998Jul 24, 2003Taizo TakachiImage pickup device and camera* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7078799Apr 19, 2004Jul 18, 2006Stmicroelectronics S.A.Semiconductor packageUS7091599 *Dec 18, 2003Aug 15, 2006Olympus CorporationSolid-state imaging deviceUS7115961Aug 24, 2004Oct 3, 2006Micron Technology, Inc.Packaged microelectronic imaging devices and methods of packaging microelectronic imaging devicesUS7171745Sep 30, 2004Feb 6, 2007National Semiconductor CorporationApparatus and method for force mounting semiconductor packages to printed circuit boardsUS7189954Jul 19, 2004Mar 13, 2007Micron Technology, Inc.Microelectronic imagers with optical devices and methods of manufacturing such microelectronic imagersUS7190039Feb 18, 2005Mar 13, 2007Micron Technology, Inc.Microelectronic imagers with shaped image sensors and methods for manufacturing microelectronic imagersUS7199439Jun 14, 2004Apr 3, 2007Micron Technology, Inc.Microelectronic imagers and methods of packaging microelectronic imagersUS7202460Aug 6, 2003Apr 10, 2007Fujitsu LimitedCamera module for compact electronic equipmentsUS7232754Jun 29, 2004Jun 19, 2007Micron Technology, Inc.Microelectronic devices and methods for forming interconnects in microelectronic devicesUS7245834 *Oct 19, 2004Jul 17, 2007Stmicroelectronics S.A.Optical device for optical semiconductor package and fabrication methodUS7253390Apr 17, 2006Aug 7, 2007Micron Technology, Inc.Methods for packaging microelectronic imagersUS7253397 *Feb 23, 2004Aug 7, 2007Micron Technology, Inc.Packaged microelectronic imagers and methods of packaging microelectronic imagersUS7253957May 13, 2004Aug 7, 2007Micron Technology, Inc.Integrated optics units and methods of manufacturing integrated optics units for use with microelectronic imagersUS7262134Sep 1, 2005Aug 28, 2007Micron Technology, Inc.Microfeature workpieces and methods for forming interconnects in microfeature workpiecesUS7262405Jun 14, 2004Aug 28, 2007Micron Technology, Inc.Prefabricated housings for microelectronic imagersUS7265330Jun 28, 2006Sep 4, 2007Micron Technology, Inc.Microelectronic imagers with optical devices and methods of manufacturing such microelectronic imagersUS7271482Dec 30, 2004Sep 18, 2007Micron Technology, Inc.Methods for forming interconnects in microelectronic workpieces and microelectronic workpieces formed using such methodsUS7276393Aug 26, 2004Oct 2, 2007Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7282693Feb 26, 2007Oct 16, 2007Fujitsu LimitedCamera module for compact electronic equipmentsUS7288757Sep 1, 2005Oct 30, 2007Micron Technology, Inc.Microelectronic imaging devices and associated methods for attaching transmissive elementsUS7294827 *Sep 21, 2004Nov 13, 2007Delphi Technologies, Inc.Electronic module with light-blocking featuresUS7294897Jun 29, 2004Nov 13, 2007Micron Technology, Inc.Packaged microelectronic imagers and methods of packaging microelectronic imagersUS7300857Sep 2, 2004Nov 27, 2007Micron Technology, Inc.Through-wafer interconnects for photoimager and memory wafersUS7303931Feb 10, 2005Dec 4, 2007Micron Technology, Inc.Microfeature workpieces having microlenses and methods of forming microlenses on microfeature workpiecesUS7321455Jul 22, 2005Jan 22, 2008Micron Technology, Inc.Microelectronic devices and methods for packaging microelectronic devicesUS7329943May 3, 2006Feb 12, 2008Micron Technology, Inc.Microelectronic devices and methods for forming interconnects in microelectronic devicesUS7341881Apr 24, 2006Mar 11, 2008Micron Technology, Inc.Methods of packaging and testing microelectronic imaging devicesUS7364934Aug 10, 2004Apr 29, 2008Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7368695 *May 3, 2005May 6, 2008Tessera, Inc.Image sensor package and fabrication methodUS7390687Oct 31, 2006Jun 24, 2008Micron Technology, Inc.Microelectronic imagers with shaped image sensors and methods for manufacturing microelectronic imagersUS7397066Aug 19, 2004Jul 8, 2008Micron Technology, Inc.Microelectronic imagers with curved image sensors and methods for manufacturing microelectronic imagersUS7402453Jul 28, 2004Jul 22, 2008Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7416913Jul 16, 2004Aug 26, 2008Micron Technology, Inc.Methods of manufacturing microelectronic imaging units with discrete standoffsUS7417294Jan 17, 2007Aug 26, 2008Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7419841Jul 28, 2006Sep 2, 2008Micron Technology, Inc.Microelectronic imagers and methods of packaging microelectronic imagersUS7429494Aug 24, 2004Sep 30, 2008Micron Technology, Inc.Microelectronic imagers with optical devices having integral reference features and methods for manufacturing such microelectronic imagersUS7439598Oct 19, 2006Oct 21, 2008Micron Technology, Inc.Microelectronic imaging unitsUS7456483May 9, 2005Nov 25, 2008Sharp Kabushiki KaishaSemiconductor device, manufacturing method of semiconductor device and module for optical deviceUS7498606Jun 1, 2006Mar 3, 2009Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7498647Jun 10, 2004Mar 3, 2009Micron Technology, Inc.Packaged microelectronic imagers and methods of packaging microelectronic imagersUS7504615Mar 27, 2007Mar 17, 2009Aptina Imaging CorporationMicroelectronic imagers with optical devices and methods of manufacturing such microelectronic imagersUS7505215Sep 26, 2006Mar 17, 2009Sony CorporationCamera module and electronic apparatusUS7511262Aug 22, 2005Mar 31, 2009Micron Technology, Inc.Optical device and assembly for use with imaging dies, and wafer-label imager assemblyUS7511374Jun 7, 2006Mar 31, 2009Aptina Imaging CorporationMicroelectronic imaging units having covered image sensorsUS7547877Jul 31, 2008Jun 16, 2009Micron Technology, Inc.Microelectronic imagers with integrated optical devices and methods for manufacturing such microelectronic imagersUS7583862 *Nov 26, 2003Sep 1, 2009Aptina Imaging CorporationPackaged microelectronic imagers and methods of packaging microelectronic imagersUS7593636 *Dec 20, 2007Sep 22, 2009Tessera, Inc.Pin referenced image sensor to reduce tilt in a camera moduleUS7619684 *Dec 6, 2004Nov 17, 2009Sharp Kabushiki KaishaCamera module, manufacturing method of camera module, electronic apparatus, and manufacturing method of electronic apparatusUS7632713 *Apr 27, 2004Dec 15, 2009Aptina Imaging CorporationMethods of packaging microelectronic imaging devicesUS7646075Jul 7, 2005Jan 12, 2010Micron Technology, Inc.Microelectronic imagers having front side contactsUS7646427 *Mar 29, 2005Jan 12, 2010Fujifilm CorporationImage capture apparatusUS7655507Feb 2, 2010Micron Technology Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7663096Feb 16, 2010Aptina Imaging CorporationMicroelectronic imaging devices and associated methods for attaching transmissive elementsUS7663693 *Mar 1, 2004Feb 16, 2010United Microelectronics Corp.Camera moduleUS7691660Aug 15, 2007Apr 6, 2010Aptina Imaging CorporationMethods of manufacturing microelectronic imaging units on a microfeature workpieceUS7696588Apr 13, 2010Aptina Imaging CorporationMicroelectronic imagers with shaped image sensors and methods for manufacturing microelectronic imagersUS7709776Feb 20, 2009May 4, 2010Aptina Imaging CorporationMicroelectronic imagers with optical devices and methods of manufacturing such microelectronic imagersUS7714931Jun 25, 2004May 11, 2010Flextronics International Usa, Inc.System and method for mounting an image capture device on a flexible substrateUS7723741Jun 13, 2006May 25, 2010Aptina Imaging CorporationSpacers for packaged microelectronic imagers and methods of making and using spacers for wafer-level packaging of imagersUS7744296 *Oct 23, 2007Jun 29, 2010Hon Hai Precision Industry Co., Ltd.Camera module having colloid layer surrounding sensorUS7768574May 4, 2005Aug 3, 2010Tessera, Inc.Compact lens turret assemblyUS7786574Feb 12, 2009Aug 31, 2010Aptina Imaging Corp.Microelectronic imaging unitsUS7795649Sep 20, 2007Sep 14, 2010Aptina Imaging CorporationMicrofeature workpieces having microlenses and methods of forming microlenses on microfeature workpiecesUS7842915May 26, 2009Nov 30, 2010Micron Technology, Inc.Microelectronic imagers with integrated optical devices and methods for manufacturing such microelectronic imagersUS7858420Jul 2, 2008Dec 28, 2010Micron Technology, Inc.Microelectronic imaging units and methods of manufacturing microelectronic imaging unitsUS7858429Sep 27, 2007Dec 28, 2010Round Rock Research, LlcPackaged microelectronic imagers and methods of packaging microelectronic imagersUS7898085Jul 10, 2006Mar 1, 2011Olympus CorporationSolid-state imaging device and manufacturing method thereofUS7902643Mar 8, 2011Micron Technology, Inc.Microfeature workpieces having interconnects and conductive backplanes, and associated systems and methodsUS7993944Aug 9, 2011Micron Technology, Inc.Microelectronic imagers with optical devices having integral reference features and methods for manufacturing such microelectronic imagersUS8035179Feb 2, 2009Oct 11, 2011Micron Technology, Inc.Packaged microelectronic imagers and methods of packaging microelectronic imagersUS8053857Dec 23, 2010Nov 8, 2011Round Rock Research, LlcPackaged microelectronic imagers and methods of packaging microelectronic imagersUS8092734May 13, 2004Jan 10, 2012Aptina Imaging CorporationCovers for microelectronic imagers and methods for wafer-level packaging of microelectronics imagersUS8319885 *Mar 26, 2010Nov 27, 2012Hon Hai Precision Industry Co., Ltd.Detachable camera moduleUS8531596 *Feb 5, 2008Sep 10, 2013Sharp Kabushiki KaishaCamera apparatus and electronic device provided with the sameUS8703518Sep 20, 2011Apr 22, 2014Micron Technology, Inc.Packaged microelectronic imagers and methods of packaging microelectronic imagersUS8816463Jan 12, 2012Aug 26, 2014Round Rock Research, LlcWafer-level packaged microelectronic imagers having interconnects formed through terminalsUS9060111 *Sep 6, 2012Jun 16, 2015Apple Inc.Electronic device with compact camera moduleUS20040130640 *Dec 18, 2003Jul 8, 2004Olympus CorporationSolid-state imaging device and manufacturing method thereofUS20040212718 *Jan 16, 2004Oct 28, 2004Nokia CorporationPlacement of a camera module in a portable deviceUS20040239793 *May 24, 2004Dec 2, 2004Cheng-Hsien LuOptical module for a digital cameraUS20040247311 *Mar 30, 2004Dec 9, 2004Satoshi AjikiMounting structure for compact camera moduleUS20050001923 *Jul 6, 2004Jan 6, 2005Tsung-Wei ChiangDigital camera moduleUS20050039330 *Sep 30, 2004Feb 24, 2005National Semiconductor CorporationApparatus and method for force mounting semiconductor packages to printed circuit boardsUS20070228403 *Oct 24, 2006Oct 4, 2007Samsung Electronics Co., Ltd.Micro-element package module and manufacturing method thereofUS20100045855 *Feb 5, 2008Feb 25, 2010Sharp Kabushiki KaishaCamera apparatus and electronic device provided with the sameUS20120044411 *Dec 25, 2010Feb 23, 2012Hon Hai Precision Industry Co., Ltd.Camera module and method for assembling the sameUS20120044412 *Dec 29, 2010Feb 23, 2012Hon Hai Precision Industry Co., Ltd.Camera module and assembly method the sameUS20120176534 *Jul 12, 2012Hon Hai Precision Industry Co., Ltd.Camera moduleUS20140063302 *Sep 6, 2012Mar 6, 2014Ashutosh Y. ShuklaElectronic Device with Compact Camera ModuleEP1398832A2 *Aug 5, 2003Mar 17, 2004Fujitsu LimitedCamera module for compact electronic equipmentsEP1596438A2 *May 10, 2005Nov 16, 2005Sharp CorporationSemiconductor device, manufacturing method of semiconductor device and module for optical deviceEP1646088A1 *Sep 12, 2005Apr 12, 2006Delphi Technologies, Inc.Electronic module with light-blocking featuresEP1722554A2 *Apr 25, 2006Nov 15, 2006Robert Bosch GmbhImage pick-up device and method for manufacturing the sameEP1734743A2 *Jun 13, 2006Dec 20, 2006Basler AktiengesellschaftCarrier for sensor boardsEP1774453A2 *Jun 22, 2005Apr 18, 2007Flextronics International USA Inc.System and method for mounting an image capture device on a flexible substrateEP1781019A1 *Oct 27, 2006May 2, 2007Sony CorporationCamera module and electronic apparatusWO2004010687A1 *Jul 11, 2003Jan 29, 2004Erik H GrootCamera module, holder for use in a camera module, camera system and method of manufacturing a camera moduleWO2005055316A2 *Nov 12, 2004Jun 16, 2005Micron Technology IncPackaged microelectronic imagers and methods of packaging microelectronic imagersWO2005084012A1 *Aug 7, 2004Sep 9, 2005Ids Co LtdCamera moduleWO2006012139A2Jun 22, 2005Feb 2, 2006Flextronics Int Usa IncSystem and method for mounting an image capture device on a flexible substrateWO2007124994A1 *Mar 30, 2007Nov 8, 2007Siemens AgOptical module, and method for the production of an optical module* Cited by examinerClassifications U.S. Classification358/509, 348/E05.027, 257/E31.111, 348/E05.028, 257/E31.127, 257/E31.117International ClassificationH01L27/146, H01L31/0232, H01L31/0203, H04N5/225, H01L31/02Cooperative ClassificationH01L2224/32225, H04N5/2254, H01L31/02002, H04N5/2253, H01L27/14618, H01L31/0232, H01L31/0203, H04N2007/145, H01L2224/73204, H01L2224/16225, H01L2924/07811European ClassificationH01L31/0203, H01L27/146A6, H01L31/02E, H01L31/0232, H04N5/225C3, H04N5/225C4Legal EventsDateCodeEventDescriptionNov 13, 2001ASAssignmentOwner name: KABUSHIKI KAISHA TOSHIBA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SEGAWA, MASAO;OOISHI, MICHIKO;KARASAWA, JUN;AND OTHERS;REEL/FRAME:012308/0684Effective date: 20011107May 4, 2011FPAYFee paymentYear of fee payment: 4May 20, 2015FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services