WO2010082593A1 - コネクタ及びケーブルアセンブリ - Google Patents
コネクタ及びケーブルアセンブリ Download PDFInfo
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- WO2010082593A1 WO2010082593A1 PCT/JP2010/050307 JP2010050307W WO2010082593A1 WO 2010082593 A1 WO2010082593 A1 WO 2010082593A1 JP 2010050307 W JP2010050307 W JP 2010050307W WO 2010082593 A1 WO2010082593 A1 WO 2010082593A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/594—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures for shielded flat cable
- H01R12/598—Each conductor being individually surrounded by shield, e.g. multiple coaxial cables in flat structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/025—Impedance arrangements, e.g. impedance matching, reduction of parasitic impedance
- H05K1/0253—Impedance adaptations of transmission lines by special lay-out of power planes, e.g. providing openings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/61—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/62—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6473—Impedance matching
- H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
- H01R13/6476—Impedance matching by variation of conductive properties, e.g. by dimension variations by making an aperture, e.g. a hole
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/0218—Reduction of cross-talk, noise or electromagnetic interference by printed shielding conductors, ground planes or power plane
- H05K1/0224—Patterned shielding planes, ground planes or power planes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/117—Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09681—Mesh conductors, e.g. as a ground plane
Definitions
- the present invention relates to a connector and a cable assembly, and more particularly to a connector excellent in high-speed signal transmission characteristics and a cable assembly using the connector.
- Some small electronic devices typified by mobile phones and small personal computers can be folded by rotating the display portion relative to the operation portion.
- a small electronic device in the electrical connection between the display portion and the operation portion, a plurality of ultra-fine coaxial cables are arranged in a horizontal row, and both ends of each coaxial cable are integrated with a connector. Cable assemblies may be used.
- the connector of the cable assembly may be formed of a printed wiring board.
- Patent Document 1 describes an example of such a cable assembly.
- the connector is constituted by a printed wiring board, and a plurality of signal terminals and a common conductor connecting portion electrically connected to the ground are formed on one surface of the printed wiring board. Yes.
- the central conductors of the plurality of coaxial cables are connected to the signal terminals, the external conductors are connected to the common conductor connection portion, and signals are transmitted by the central conductors of the coaxial cables.
- an object of the present invention is to provide a connector that can constitute a cable assembly that enables high-speed transmission of signals, and a cable assembly that uses the connector.
- the present inventors examined a method for reducing crosstalk in a connector of a signal transmitted by a cable assembly.
- a plurality of signal terminals are arranged in parallel on one surface of the substrate, a ground layer is provided on the other surface of the substrate, and the ground layer and the signal terminal are interposed via the substrate.
- a connector with an overlapping configuration was studied.
- the crosstalk in the connector is reduced. Therefore, it seemed that high-speed signal transmission was possible.
- the present inventors have conducted extensive research on a method for reducing crosstalk without reducing the impedance of the signal terminal, and have come to the present invention.
- the connector of the present invention includes a board, a plurality of signal terminals arranged in parallel on one side of the board, and a ground layer provided on the other side of the board, and each of the signals
- the terminal and the ground layer are arranged such that at least a part of the ground layer and at least a part of each of the signal terminals overlap with each other through the substrate, and overlap the signal terminal in the ground layer
- a plurality of holes are formed, and the maximum diameter of the holes is smaller than the distance between the centers of the signal terminals adjacent to each other.
- the capacitance component between the signal terminal and the ground layer can be kept small. Accordingly, the impedance of the signal terminal is suppressed from being reduced. For this reason, in the cable assembly using such a connector, impedance mismatch due to a decrease in the impedance of the signal terminal is suppressed. Therefore, noise due to signal reflection is suppressed even during high-speed signal transmission.
- the cable assembly using the connector according to the present invention suppresses noise due to crosstalk and suppresses noise due to signal reflection due to impedance mismatching even during high-speed signal transmission. Excellent characteristics.
- the connector of the present invention is connected to the device, and the signal terminal and the ground layer are connected to the device.
- the portion where the hole of the substrate is located is prevented from being deformed, and the portion overlapping the hole of the signal terminal is prevented from being deformed.
- At least one ground terminal provided so as to overlap the ground layer via the substrate, and provided so as to penetrate the substrate, the ground layer and the ground terminal It is preferable to further include a first through conductor that connects to the first through conductor.
- the ground terminal is short-circuited because it is electrically connected to the ground layer via the first through conductor. Since the ground terminal is provided between the signal terminals, unnecessary radiation radiated from the signal terminal is absorbed by the ground terminal. For this reason, since the crosstalk between the signal terminals with the ground terminal interposed therebetween can be suppressed, the generation of noise can be further suppressed.
- the hole is not formed in a portion of the ground layer overlapping the ground terminal.
- the first through conductor can be appropriately connected to the ground layer. Therefore, the electrical connection between the ground layer and the ground terminal can be appropriately performed.
- the external conductor common connection portion provided at a predetermined distance from each of the signal terminals, and the ground layer is provided so as to penetrate the substrate. It is preferable that a second through conductor connecting the outer conductor common connection portion is further provided, and a distance between the signal terminal and the outer conductor common connection portion is 0.15 to 0.5 mm.
- At least one of the signal terminals may have a different length from the other signal terminals.
- the distance between the centers of at least one pair of the signal terminals adjacent to each other may be different from the distance between the centers of the other pair of signal terminals adjacent to each other.
- the connector may further include a second substrate and a plurality of second signal terminals arranged in parallel on one surface of the second substrate, the second substrate being the other of the second substrates.
- Each of the second signal terminals includes a portion of the ground layer in which the plurality of holes are formed, and at least a part of each of the second signal terminals. However, they are preferably arranged so as to overlap each other via the second substrate.
- At least one ground terminal provided so as to overlap the ground layer via the substrate, and between the second signal terminals, the second substrate via the second substrate.
- At least one second ground terminal provided so as to overlap with the ground layer, provided so as to penetrate the substrate and the second substrate, and connect the ground terminal, the second ground terminal, and the ground layer. It is preferable to further include a first through conductor.
- the crosstalk between the signal terminals sandwiching the ground terminal and the crosstalk between the second signal terminals sandwiching the second ground terminal can be suppressed. Can be suppressed.
- the hole is not formed in a portion of the ground layer overlapping the ground terminal and the second ground terminal.
- the first through conductor can be appropriately connected to the ground layer. Therefore, the electrical connection between the ground layer and the second ground terminal can be appropriately performed.
- the outer conductor common connection portion provided on the one surface of the substrate, the second outer conductor common connection portion provided on the one surface of the second substrate, the substrate, and the substrate A second through conductor provided to penetrate the second substrate and connecting the outer conductor common connection portion and the second outer conductor common connection portion and the ground layer; and the signal terminal and the external It is preferable that the distance between the common conductor connection portion and the distance between the second signal terminal and the second external conductor common connection portion are both 0.15 to 0.5 mm.
- At least one of the second signal terminals may have a length different from that of the other second signal terminals.
- the distance between the centers of at least one pair of the second signal terminals adjacent to each other may be different from the distance between the centers of the other pair of the second signal terminals adjacent to each other.
- the cable assembly of the present invention includes a set of connectors described above, a plurality of signal lines arranged in parallel to each other, and at least one ground line, and both ends of each of the signal lines are It is connected to the signal terminal in each of the connectors, and both ends of the ground line are electrically connected to the ground layer in each of the connectors.
- the cable assembly of the present invention includes a set of the above-described connectors, a plurality of signal lines arranged in parallel with each other, and at least one ground line, and each of a part of the plurality of signal lines. Both ends of the signal lines are connected to the signal terminals in the connectors, and both ends of the signal lines in other parts of the signal lines are the second signal terminals in the connectors. And both end portions of the ground wire are electrically connected to the ground layer in each of the connectors.
- a connector that can constitute a cable assembly in which noise generation is suppressed during high-speed signal transmission, and a cable assembly using the connector.
- FIG. 10 is a front view of the connector of FIG. 9. It is a rear view of the connector in the cable assembly which concerns on 4th Embodiment of this invention.
- FIG. 12 is a sectional view taken along line XII-XII of the connector of FIG.
- FIG. 1 is a plan view showing a cable assembly according to a first embodiment of the present invention.
- the cable assembly 100 includes a plurality of coaxial cables 20 arranged in parallel to each other and a set of connectors 10 to which the respective coaxial cables 20 are connected.
- FIG. 2 is a cross-sectional view perpendicular to the longitudinal direction of the coaxial cable 20.
- the coaxial cable 20 has a center conductor 26 made of a stranded wire of a metal conductor at the center.
- the center conductor 26 is covered with an insulating layer 27 made of an insulating resin.
- an outer conductor 28 made of a metal braid is provided on the outer peripheral surface of the insulating layer 27, an outer conductor 28 made of a metal braid is provided. Further, the outer conductor 28 is covered with a sheath 29 made of resin.
- FIG. 3 is a front view of the connector 10 of FIG. 1
- FIG. 4 is a rear view of the connector 10 of FIG.
- FIG. 5 is a cross-sectional view taken along line VV of the connector 10 of FIG.
- the connector 10 is composed of a flexible printed wiring board, and has a flexible substrate 11, a pair of ground terminals 35 provided on one surface of the substrate 11, and a plurality of ground terminals 35.
- Part 38 a ground layer 41 provided on the other surface of substrate 11, and a plurality of first through conductors provided so as to penetrate substrate 11 and electrically connecting ground terminals 35, 36 and ground layer 41 45 and a plurality of second through conductors 46 that are provided so as to penetrate the substrate 11 and electrically connect the external conductor common connection portion 38 and the ground layer 41 as main components. .
- the substrate 11 has a substantially rectangular narrow portion 12 and a substantially rectangular wide portion 13, and the long side of the narrow portion 12 and the long side of the wide portion 13 are connected. Yes.
- the substrate 11 has a substantially convex outer shape.
- the narrow portion 12 is inserted into an external device (not shown).
- the board 11 has a connector edge 15 having a long side opposite to the wide portion 13 side in the narrow portion 12 and a fitting that is fitted to the external device when the narrow portion 12 is inserted into the external device. And a recess 16.
- the outer conductor common connection portion 38 has a substantially rectangular shape, and is provided along the long side of the wide portion 13 opposite to the narrow portion 12 side on one surface of the substrate 11.
- the signal terminals 31 and 32 are symmetrical and have an elongated shape, and are provided from the narrow portion 12 to the wide portion 13. Further, the distal end portions of the signal terminals 31 and 32 are arranged in contact with the connector edge 15 so that the signal terminals 31 and 32 can contact electronic components and electronic devices. Further, the signal terminals 31 and 32 are arranged at positions spaced apart from the outer conductor common connection part 38 by a predetermined distance. That is, the rear end portions 31a and 32a, which are the end portions of the signal terminals 31 and 32 on the outer conductor common connection portion 38 side, are spaced apart from the end portions of the outer conductor common connection portion 38 on the signal terminals 31 and 32 side. It is arranged at the position. Accordingly, the signal terminals 31 and 32 are arranged to extend from the connector edge 15 of the substrate 11 to a position at a predetermined distance from the external conductor common connection portion 38.
- the signal terminal 31 and the signal terminal 32 are paired one by one, and the pair of signal terminals 31 and the signal terminals 32 are arranged adjacent to each other.
- a plurality of such a pair of signal terminals 31, 32 are arranged on one surface of the substrate 11, and the distance between the centers of each pair of signal terminals 31, 32 is equal.
- Each ground terminal 36 has an elongated shape, and is provided from the narrow portion 12 to the wide portion 13.
- Each ground terminal 36 has the same length as the signal terminals 31, 32, the front end portion of each ground terminal 36 is disposed in contact with the connector edge 15, and the rear end portion is the external conductor common connection portion 38. Is disposed at a position spaced a predetermined distance from.
- Each ground terminal 36 is disposed between the pair of signal terminals 31 and 32 and the other pair of signal terminals 31 and 32. Accordingly, each ground terminal 36 is adjacent to the signal terminals 31 and 32 so as to be sandwiched between the signal terminal 31 in the pair of signal terminals 31 and 32 and the signal terminal 32 in the other pair of signal terminals 31 and 32. ing.
- the pair of ground terminals 35 are provided so as to sandwich the entire signal terminals 31 and 32 and the ground terminal 36. One of the pair of ground terminals 35 is adjacent to the signal terminal 31, and the other of the ground terminals 35 is adjacent to the signal terminal 32. A part of each ground terminal 35 extends and is connected to both ends of the external conductor common connection portion 38.
- the signal terminal 31 adjacent to the ground terminal 35 is formed with a recess 31b on the side on the ground terminal 35 side, and the signal terminal 31 adjacent to the ground terminal 36 is on the side on the ground terminal 36 side.
- a recess 31b is formed.
- a convex portion 31c is formed on the side portion of the signal terminal 31 opposite to the side portion where the concave portion 31b is formed.
- the convex portion 31 c is formed at the same position as the concave portion 31 b in the direction along the longitudinal direction of the signal terminal 31. For this reason, even when the recess 31b is formed deep in the direction crossing the signal terminal 31, the width of the signal terminal 31 becomes extremely small and the resistance of the signal terminal 31 becomes too high at the place where the recess 31b is formed. Is suppressed.
- the signal terminal 32 adjacent to the ground terminal 35 is formed with a recess 32b on the side on the ground terminal 35 side, and the signal terminal 32 adjacent to the ground terminal 36 is on the side on the ground terminal 36 side.
- a recess 32b is formed.
- a convex portion 32c is formed on the side portion of the signal terminal 32 opposite to the side portion where the concave portion 32b is formed. The convex portion 32 c is formed at the same position as the concave portion 32 b in the direction along the longitudinal direction of the signal terminal 32.
- the capacity of the capacitive coupling between the ground terminals 35 and 36 and the signal terminals 31 and 32 is adjusted by the recesses 31b and 32b.
- the concave portions 31b and 32b formed in the signal terminals 31 and 32, and the portions where the convex portions 31c and 32c and a part of the ground terminal 35 are extended are protective insulating films indicated by broken lines. 14a.
- the ground layer 41 is formed so as to cover substantially the entire substrate 11 except for the vicinity of the connector edge 15. For this reason, the ground layer 41 overlaps the ground terminals 35 and 36 and the signal terminals 31 and 32 via the substrate 11 in a direction perpendicular to the substrate 11.
- a lattice portion 42 is formed at a position overlapping the signal terminals 31 and 32 in the ground layer 41, and a plurality of holes 43 are formed in the lattice portion 42.
- the maximum diameter of the hole 43 is configured to be smaller than the distance L between the centers of the adjacent signal terminals 31 and 32.
- the length of the diagonal line of the quadrangular hole is shorter than the distance between the centers of the adjacent signal terminals 31 and 32.
- the lattice portion 42 is not formed at a position overlapping the ground terminals 35 and 36 and a position overlapping the external conductor common connection portion 38. Accordingly, the hole 43 is not formed at a position overlapping the ground terminals 35 and 36 in the ground layer 41 and a position overlapping the external conductor common connection portion 38.
- the entire back surface of the substrate 11 is covered with a protective insulating film 14b indicated by a broken line.
- the substrate 11 is connected with the first through conductor 45 constituted by a through hole connecting the ground layer 41 and the ground terminal 36, and the ground layer 41 and the external conductor common connection portion 38.
- a second through conductor 46 constituted by a through hole is formed.
- the substrate 11 is formed with a first through conductor 45 constituted by a through hole connecting the ground layer 41 and the ground terminal 35. In this way, the ground terminals 35 and 36, the external conductor common connection portion 38, and the ground layer 41 are electrically connected.
- the hole 43 is not formed in the position which overlaps with the ground terminals 35 and 36 in the ground layer 41, and the position which overlaps with the external conductor common connection part 38 as mentioned above, the 1st penetration conductor 45 and 2nd The through conductor 46 can be appropriately connected by the ground layer 41. Therefore, in the present embodiment, electrical connection between the ground layer 41 and the ground terminals 35 and 36 and the external conductor common connection portion 38 can be appropriately performed.
- the center conductor 26 and the outer conductor 28 are exposed at both ends of each coaxial cable 20.
- the center conductor 26 in a pair of coaxial cable 20 is arrange
- the center conductor 26 in some of the coaxial cables 20 is disposed on the ground terminal 36 and fixed by solder (not shown).
- the center conductor 26 in the other coaxial cable 20 is disposed on the signal terminals 31 and 32 and fixed by solder (not shown).
- the outer conductors 28 of all the coaxial cables 20 are disposed on the outer conductor common connection portion 38, sandwiched between the outer conductor common connection portion 38 and the ground bar 51, and fixed by solder (not shown).
- the central conductor 26 connected to the ground terminals 35 and 36 and the respective external conductors 28 connected to the external conductor common connection portion 38 serve as ground lines.
- the respective central conductors 26 connected to the signal terminals 31 and 32 are signal lines.
- the distance between the rear end portions 31a and 32a of the signal terminals 31 and 32 shown in FIG. 3 and the external conductor common connection portion 38 is preferably 0.15 to 0.5 mm, and preferably 0.2 to 0. More preferably, it is 3 mm.
- the impedance can be reduced if the distance between the rear end portions 31a and 32a and the outer conductor common connection portion 38 is 0.5 mm or less. If the distance is 0.3 mm or less, the impedance can be further matched.
- the center conductor 26 is fixed on the signal terminals 31 and 32 by solder and the outer conductor 28 is fixed by solder on the outer conductor common connection portion 38, the rear end portion 31a, If the distance between 32a and the outer conductor common connection portion 38 is 0.15 mm or more, it is possible to effectively suppress short circuit between the signal terminals 31 and 32 and the outer conductor common connection portion 38 due to a solder bridge or the like. Therefore, it is preferable that the thickness is 0.2 mm or more, since this short circuit can be further prevented and productivity is improved.
- the central conductor 26 of the coaxial cable 20 as a signal line is arranged on the signal terminals 31 and 32 in the connector 10, and the signal terminals 31 and 32 are used to Signal transmission is performed between the outside of the cable assembly 100 and the central conductor 26 of the coaxial cable 20.
- the center conductor 26 of the coaxial cable 20 as a ground line connected to the ground terminals 35 and 36 and the outer conductor 28 of the coaxial cable 20 as a ground line connected to the external conductor common connection portion 38 are ground layers. 41 is grounded.
- the signal terminals 31 and 32 are formed on one surface of the substrate 11 in the connector 10, the ground layer 41 is formed on the other surface of the substrate, and the signal terminals 31 and 32 and the ground layer 41 are formed on the substrate 11. Are arranged so as to overlap each other. Therefore, unnecessary radiation generated from the signal terminals 31 and 32 is absorbed by the ground layer 41, and crosstalk between the signal terminals 31 and 32 is reduced. For this reason, generation of noise due to crosstalk is suppressed even during high-speed signal transmission.
- a plurality of holes 43 are formed in the portion of the ground layer 41 where the signal terminals 31 and 32 and the ground layer 41 overlap. For this reason, the capacitive coupling between the signal terminals 31 and 32 and the ground layer 41 can be suppressed to be small. Therefore, the impedance of the signal terminals 31 and 32 is suppressed from being reduced. Accordingly, impedance mismatch between the central conductor 26 and the signal terminals 31 and 32 in the coaxial cable 20 due to the impedance of the signal terminals 31 and 32 being reduced is suppressed. For this reason, generation of noise due to signal reflection is suppressed even during high-speed signal transmission.
- the cable assembly 100 suppresses the generation of noise due to crosstalk at the time of high-speed signal transmission in the connector 10 and suppresses the generation of noise due to signal reflection due to impedance mismatching. Excellent.
- the maximum diameter of the plurality of holes 43 formed in the ground layer 41 is configured to be smaller than the distance L between the centers of the adjacent signal terminals 31 and 32. Therefore, when the connector 10 is connected to a device, even if the signal terminals 31 and 32 and the ground layer 41 are held between the terminals of the device, the portion where the hole 43 of the substrate 11 is located The portion corresponding to the hole 43 of the signal terminals 31 and 32 is prevented from being deformed by deformation or the like.
- a ground terminal 36 is disposed between the signal terminal 31 and the signal terminal 32. Therefore, unnecessary radiation emitted from the signal terminals 31 and 32 is absorbed by the ground terminal 36. Accordingly, the occurrence of crosstalk beyond the ground terminal 36 in the signal terminals 31 and 32 located on both sides of the ground terminal 36 is suppressed. Therefore, it is further suppressed that noise due to crosstalk is superimposed on the signal transmitted by the cable assembly 100.
- the ground line is constituted not only by the central conductor 26 of some coaxial cables 20 but also by the outer conductor 28 of each coaxial cable 20, and the outer conductor 28 is connected to the outer conductor common connection portion 38. It is arranged above and is electrically connected to the ground layer 41 via the second through conductor 46. For this reason, the ground is strengthened, and measures against EMI (Electro Magnetic Interference) can be further strengthened.
- EMI Electro Magnetic Interference
- FIG. 6 is a front view showing a cable assembly according to the second embodiment of the present invention.
- the cable assembly 101 of this embodiment includes a plurality of coaxial cables 20 and a set of connectors 10a as main components.
- FIG. 7 is a front view of the connector 10a shown in FIG.
- a plurality of signal terminals 33 and an external conductor common connection portion 38a provided in parallel are provided on one surface of the substrate 11, and ground terminals 35 and 36 are provided.
- ground terminals 35 and 36 are provided.
- the signal terminals are provided at equal intervals, the distance between the centers of a pair of adjacent signal terminals 33, 33 is the center of the other pair of signal terminals 33, 33. It is equal to the distance between.
- the outer conductor common connection portion 38a has the same shape as the outer conductor common connection portion 38 of the first embodiment.
- the outer conductor common connection portion 38a is different from the outer conductor common connection portion 38 of the first embodiment in that both ends are not connected to other terminals.
- Each signal terminal 33 has an elongated shape, and is different from the signal terminals 31 and 32 of the first embodiment in that the concave portion and the convex portion 1 are not formed on the side portion along the longitudinal direction.
- FIG. 8 is a rear view of the connector 10a shown in FIG.
- the outer shape of the ground layer 41a is the same as the outer shape of the ground layer 41 of the first embodiment.
- the lattice portion 42a covers the entire region of the ground layer 41a where the ground layer 41a and the signal terminal 33 overlap. In the point provided, it differs from the lattice part 42 of 1st Embodiment.
- the external conductor common connection part 38a is electrically connected with the ground layer 41a by the 2nd penetration conductor 46 similarly to the connector 10 of 1st Embodiment.
- each external conductor 28 connected to the external conductor common connection portion 38a is a ground line
- each center conductor 26 connected to the signal terminal 33 is a signal line.
- the distance between the rear end portion 33a of the signal terminal 33 and the external conductor common connection portion 38a shown in FIG. 7 is the distance between the signal terminals 31 and 32 and the external conductor common connection portion 38 in the first embodiment. It is preferable that the distance is the same for the same reason.
- the cable assembly 101 can be used for an unbalanced transmission system. For this reason, it is not necessary to arrange a ground terminal between the signal terminals, and the signal can be transmitted more efficiently.
- FIG. 9 is a plan view showing a cable assembly according to the third embodiment of the present invention.
- the cable assembly 102 of this embodiment includes a plurality of insulated cables 21 and a set of connectors 10b as main components.
- Each insulation cable 21 is configured such that the central conductor 26 is covered with an insulation layer 27.
- FIG. 10 is a front view of the connector 10b shown in FIG.
- the connector 10 b has a plurality of ground terminals 36 and a plurality of signal terminals 31 and 32 arranged in parallel on one surface of the substrate 11. Further, the ground layer 41 described in FIG. 4 is provided on the other surface of the substrate 11, and the ground layer 41, the plurality of ground terminals 36, and the plurality of signal terminals 31 and 32 are interposed via the substrate 11. overlapping.
- Each pair of signal terminals 31 and 32 is disposed between the ground terminals 36 so as to be adjacent to the ground terminal 36.
- Each ground terminal 36 is electrically connected to the ground layer 41 by the first through conductor 45.
- the center conductors 26 are exposed at both ends of the insulated cable 21. Then, both ends of the central conductor 26 in some of the insulated cables 21 are disposed on the ground terminal 36 in the connector 10b and are fixed by solder (not shown). Further, both end portions of the central conductor 26 in the other part of the insulated cable 21 are arranged on the signal terminals 31 and 32 in the connector 10b and fixed by solder (not shown). Thus, the central conductor 26 of each insulated cable 21 connected to the ground terminal 36 is a ground line. Further, the central conductor 26 of each insulated cable 21 connected to the signal terminals 31 and 32 is a signal line.
- an insulated cable may be used in a differential transmission system.
- the insulated wires used in the differential transmission method are used by twisting two insulated cables.
- the cables can be arranged in parallel as in this embodiment. Thereby, cost can be reduced compared with the cable assembly which twists two cables.
- the thickness of the cable assembly can be suppressed, and it is possible to cope with a severe limitation on the thickness of the cable assembly.
- FIG. 11 is a rear view of the connector in the cable assembly according to the embodiment
- FIG. 12 is a cross-sectional view taken along line XII-XII of the connector shown in FIG.
- the connector 10c of the cable assembly in the present embodiment has the same configuration as that of the front of the connector 10 of the first embodiment shown in FIG. 3 when viewed from the front.
- the connector 10c includes a second substrate 111 made of the same substrate as the substrate 11 of the connector 10 of the first embodiment, in addition to the connector 10 of the first embodiment.
- the second substrate 111 has one surface facing away from the substrate 11 and the other surface facing the ground layer 41.
- the second substrate 111 is bonded to the ground layer 41 with an adhesive 52. Furthermore, as shown in FIG.
- the connector 10c of this embodiment has the same configuration as that of the connector 10 of the first embodiment shown in FIG. 3 when viewed from the front and the back, and is provided between the board 11 and the second board 111.
- the ground layer 41 is arranged.
- the first through conductor 145 penetrates the substrate 11 and the second substrate 111, and the ground terminal 36 on the substrate 11, the ground terminal 136 on the second substrate 111, and the ground layer 41. And are electrically connected.
- the second through conductor 146 passes through the substrate 11 and the second substrate 111, and the outer conductor common connection portion 38 on the substrate 11, the outer conductor common connection portion 138 on the second substrate 111, and the ground layer 41. And are electrically connected.
- the first through conductor 145 and the second through conductor 146 may be formed after the second substrate 111 is bonded.
- a cable assembly using the connector 10c will be described.
- a plurality of coaxial cables similar to the coaxial cable 20 in the first embodiment are connected to a pair of connectors 10c.
- the center conductor and the outer conductor are exposed at both ends of each coaxial cable.
- the connector 10c of the present embodiment has the same configuration as that of the connector 10 of the first embodiment shown in FIG. 3 when viewed from the front and from the back, and is thus connected to the connector 10c.
- the plurality of coaxial cables are the same coaxial cables as the coaxial cable 20 shown in FIG. 2, and half of them are connected to the ground terminals 35 and 36, the signal terminals 31 and 32, and the external conductor common connection portion 38 on the substrate 11. The remaining half is connected to the second ground terminals 135 and 136, the second signal terminals 131 and 132, and the second external conductor common connection part 138 on the second substrate 111.
- the center conductor in some coaxial cables is disposed on the ground terminals 35 and 36 on the substrate 11, and the center conductor in some other coaxial cables is disposed on the signal terminals 31 and 32 on the substrate 11, It is fixed with solder.
- the outer conductor of the coaxial cable whose center conductor is connected to the ground terminals 35 and 36 and the signal terminals 31 and 32 on the substrate 11 is disposed on the outer conductor common connection portion 38, and is connected to the outer conductor common connection portion 38 and the ground. It is sandwiched between bars and fixed with solder.
- the center conductor is disposed on the second ground terminals 135 and 136 on the second substrate 111, and the center conductor in some other coaxial cables is disposed on the second signal terminals 131 and 132 on the second substrate 111. And fixed with solder.
- the outer conductor of the coaxial cable whose central conductor is connected to the second ground terminals 135 and 136 and the second signal terminals 131 and 132 on the second substrate 111 is disposed on the second outer conductor common connection portion 138. It is sandwiched between the second outer conductor common connecting portion 138 and the ground bar and fixed by solder.
- the ground terminal, the center conductor connected to the second ground terminal, and the respective external conductors connected to the external conductor common connection portion and the second external conductor common connection portion Is the ground line.
- the respective central conductors connected to the signal terminal and the second signal terminal are signal lines.
- the shape of the plurality of holes 43 provided in the ground layer 41 is arbitrary, and for example, a plurality of circular holes may be provided.
- the connector is configured by a flexible printed wiring board.
- a printed wiring board using a substrate that is not necessarily a flexible printed wiring board and does not have flexibility may be used.
- the ground layer 41 is formed so as to cover substantially the entire board except for the vicinity of the connector edge 15. You may touch. By doing so, each signal terminal can be configured to completely overlap the ground layer 41.
- the hole 43 is not formed at the position overlapping the ground terminals 35 and 36 in the ground layer 41 and the position overlapping the external conductor common connection portion 38.
- the hole 43 may be formed in at least a part of the position overlapping the ground terminals 35 and 36 and the position overlapping the external conductor common connection portion 38.
- At least one of the plurality of signal terminals 31 and 32 may have a different length from the other signal terminals 31 and 32.
- at least one of the plurality of second signal terminals 131 and 132 may have a different length from the other second signal terminals 131 and 132.
- the distance between the centers of at least one pair of signal terminals 31 and 32 adjacent to each other may be different from the distance between the centers of another pair of signal terminals 31 and 32 adjacent to each other.
- the distance between the centers of at least one pair of second signal terminals 131 and 132 adjacent to each other is different from the distance between the centers of the other pair of second signal terminals 131 and 132 adjacent to each other. May be.
- the structure of the front and back was the same connector as the structure of the front of the connector 10 of 1st Embodiment, this invention is not limited to this,
- the front and back are 2nd. It is good also as a structure similar to the front of the connector 10a of embodiment, and the front of the connector 10b of 3rd Embodiment.
- a connector that can constitute a cable assembly in which noise generation is suppressed during high-speed signal transmission, and a cable assembly using the connector.
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Abstract
Description
図1は、本発明の第1実施形態に係るケーブルアセンブリを示す平面図である。
次に、本発明の第2実施形態について図6~図8を参照して詳細に説明する。なお、第1実施形態と同一又は同等の構成要素については、同一の参照符号を付して、特に言及する場合を除き重複する説明は省略する。
次に、本発明の第3実施形態について図9及び図10を参照して詳細に説明する。なお、第1実施形態と同一又は同等の構成要素については、同一の参照符号を付して特に言及する場合を除き重複する説明は省略する。
次に、本発明の第4実施形態について図11、図12を参照して詳細に説明する。なお、第1実施形態と同一又は同等の構成要素については、同一の参照符号を付して特に言及する場合を除き重複する説明は省略する。
11、111・・・基板
20・・・同軸ケーブル
21・・・絶縁ケーブル
26・・・中心導体
27・・・絶縁層
28・・・外部導体
29・・・シース
35、36、135、136・・・グランド端子
31、32、33、131、132・・・信号端子
38、38a、138・・・外部導体共通接続部
41、41a・・・グランド層
42、42a・・・格子部
43・・・穴
45、145・・・第1貫通導体
46、146・・・第2貫通導体
51・・・グランドバー
52・・・接着剤
100、101、102・・・ケーブルアセンブリ
Claims (14)
- 基板と、
前記基板の一方の面上に並設される複数の信号端子と、
前記基板の他方の面上に設けられるグランド層と、
を備え、
それぞれの前記信号端子及び前記グランド層は、前記グランド層の少なくとも一部と、それぞれの前記信号端子の少なくとも一部とが、前記基板を介して互いに重なるように配置され、
前記グランド層における前記信号端子と重なる部分の少なくとも一部には、複数の穴が形成され、
前記穴の最大径は、互いに隣り合う前記信号端子の中心間距離よりも小さい
ことを特徴とするコネクタ。 - 前記信号端子の間において、前記基板を介して前記グランド層と重なるように設けられる少なくとも1つのグランド端子と、
前記基板を貫通するように設けられ、前記グランド層と前記グランド端子とを接続する第1貫通導体と、
を更に備える
ことを特徴とする請求項1に記載のコネクタ。 - 前記グランド層における前記グランド端子と重なる部分には、前記穴が形成されていないことを特徴とする請求項2に記載のコネクタ。
- 前記基板の前記一方の面上において、それぞれの前記信号端子と所定の距離をあけて設けられる外部導体共通接続部と、
前記基板を貫通する様に設けられ、前記グランド層と前記外部導体共通接続部とを接続する第2貫通導体と、
を更に備え、
前記信号端子と前記外部導体共通接続部との距離が0.15~0.5mmとされる
ことを特徴とする請求項1~3のいずれか1項に記載のコネクタ。 - 前記信号端子の少なくとも1つは、他の前記信号端子と異なる長さであることを特徴とする請求項1~4に記載のコネクタ。
- 互いに隣り合う少なくとも一組の前記信号端子の中心間距離は、他の互いに隣り合う一組の前記信号端子の中心間距離と異なることを特徴とする請求項1~5に記載のコネクタ。
- 第2基板と、
前記第2基板の一方の面上に並設される複数の第2信号端子と、
を更に備え、
前記第2基板は、前記第2基板の他方の面と前記グランド層とが対向するように配置され、
それぞれの前記第2信号端子は、前記グランド層の前記複数の穴が形成された部分と、それぞれの前記第2信号端子の少なくとも一部とが、前記第2基板を介して互いに重なるように配置される
ことを特徴とする請求項1に記載のコネクタ。 - 前記信号端子の間において、前記基板を介して前記グランド層と少なくとも一部が重なるように設けられる少なくとも1つのグランド端子と、
前記第2信号端子の間において、前記第2基板を介して前記グランド層と少なくとも一部が重なるように設けられる少なくとも1つの第2グランド端子と、
前記基板及び前記第2基板を貫通するように設けられ、前記グランド端子及び前記第2グランド端子と、前記グランド層とを接続する第1貫通導体と、
を更に備える、
ことを特徴とする請求項7に記載のコネクタ。 - 前記グランド層における前記グランド端子及び前記第2グランド端子と重なる部分には、前記穴が形成されていないことを特徴とする請求項8に記載のコネクタ。
- 前記基板の前記一方の面上において、それぞれの前記信号端子と所定の距離をあけて設けられる外部導体共通接続部と、
前記第2基板における前記一方の面上において、それぞれの前記第2信号端子と所定の距離をあけて設けられる第2外部導体共通接続部と、
前記基板及び前記第2基板を貫通する様に設けられ、前記外部導体共通接続部及び第2外部導体共通接続部と前記グランド層とを接続する第2貫通導体と、
を更に備え、
前記信号端子と前記外部導体共通接続部との距離、及び、前記第2信号端子と前記第2外部導体共通接続部との距離が共に0.15~0.5mmとされる
ことを特徴とする請求項7から9のいずれか1項に記載のコネクタ。 - 前記第2信号端子の少なくとも1つは、他の前記第2信号端子と異なる長さであることを特徴とする請求項7~10に記載のコネクタ。
- 互いに隣り合う少なくとも一組の前記第2信号端子の中心間距離は、他の互いに隣り合う一組の前記第2信号端子の中心間距離と異なることを特徴とする請求項7~11に記載のコネクタ。
- 一組の請求項1から6のいずれか1項に記載のコネクタと、
互いに並設される複数の信号線と、
少なくとも1つのグランド線と、
を備え、
それぞれの前記信号線の両端部が、それぞれの前記コネクタにおける前記信号端子と接続され、
前記グランド線の両端部が、それぞれの前記コネクタにおける前記グランド層と電気的に接続されること
を特徴とするケーブルアセンブリ。 - 一組の請求項7から12のいずれか1項に記載のコネクタと、
互いに並設される複数の信号線と、
少なくとも1つのグランド線と、
を備え、
前記複数の信号線の一部におけるそれぞれの前記信号線の両端部は、それぞれの前記コネクタにおける前記信号端子と接続され、前記信号線の他の一部におけるそれぞれの前記信号線の両端部は、それぞれの前記コネクタにおける前記第2信号端子と接続され、
前記グランド線の両端部が、それぞれの前記コネクタにおける前記グランド層と電気的に接続されること
を特徴とするケーブルアセンブリ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10731262.1A EP2388868A4 (en) | 2009-01-16 | 2010-01-14 | CONNECTOR AND CABLE ASSEMBLY |
JP2010546636A JPWO2010082593A1 (ja) | 2009-01-16 | 2010-01-14 | コネクタ及びケーブルアセンブリ |
KR1020117018670A KR101256927B1 (ko) | 2009-01-16 | 2010-01-14 | 커넥터 및 케이블 어셈블리 |
CN2010800036395A CN102257684A (zh) | 2009-01-16 | 2010-01-14 | 连接器以及线缆组件 |
US13/144,634 US8202111B2 (en) | 2009-01-16 | 2010-01-14 | Connector and cable assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009-008268 | 2009-01-16 | ||
JP2009008268 | 2009-01-16 |
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WO2010082593A1 true WO2010082593A1 (ja) | 2010-07-22 |
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PCT/JP2010/050307 WO2010082593A1 (ja) | 2009-01-16 | 2010-01-14 | コネクタ及びケーブルアセンブリ |
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US (1) | US8202111B2 (ja) |
EP (1) | EP2388868A4 (ja) |
JP (1) | JPWO2010082593A1 (ja) |
KR (1) | KR101256927B1 (ja) |
CN (1) | CN102257684A (ja) |
WO (1) | WO2010082593A1 (ja) |
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KR101920623B1 (ko) * | 2012-01-30 | 2018-11-21 | 삼성전자주식회사 | 신호케이블, 케이블커넥터 및 이를 포함하는 신호케이블 연결장치 |
KR101489494B1 (ko) * | 2013-10-04 | 2015-02-04 | (주)우주일렉트로닉스 | 접지 기능을 구비하는 fpc/ffc용 커넥터 |
CN108092015B (zh) * | 2013-11-26 | 2020-03-06 | 申泰公司 | 缆线、缆线组件以及将缆线连接到基板的方法 |
KR102214509B1 (ko) | 2014-09-01 | 2021-02-09 | 삼성전자 주식회사 | 반도체 장치용 테스트 소켓 및 그를 포함하는 테스트 장치 |
US9509098B1 (en) * | 2015-11-18 | 2016-11-29 | Tyco Electronics Corporation | Pluggable connector having bussed ground conductors |
JP2019106473A (ja) * | 2017-12-13 | 2019-06-27 | 住友電気工業株式会社 | フレキシブルプリント基板及び光モジュール |
JP7368932B2 (ja) * | 2017-12-28 | 2023-10-25 | 日本ルメンタム株式会社 | 光モジュール及び光伝送装置 |
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Also Published As
Publication number | Publication date |
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JPWO2010082593A1 (ja) | 2012-07-05 |
KR101256927B1 (ko) | 2013-04-19 |
KR20110114643A (ko) | 2011-10-19 |
US20110294340A1 (en) | 2011-12-01 |
CN102257684A (zh) | 2011-11-23 |
US8202111B2 (en) | 2012-06-19 |
EP2388868A1 (en) | 2011-11-23 |
EP2388868A4 (en) | 2014-09-17 |
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