EP1145316A2 - Power semiconductor module - Google Patents
Power semiconductor moduleInfo
- Publication number
- EP1145316A2 EP1145316A2 EP00982969A EP00982969A EP1145316A2 EP 1145316 A2 EP1145316 A2 EP 1145316A2 EP 00982969 A EP00982969 A EP 00982969A EP 00982969 A EP00982969 A EP 00982969A EP 1145316 A2 EP1145316 A2 EP 1145316A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- power semiconductor
- semiconductor module
- carrier substrates
- module according
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/07—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L29/00
- H01L25/071—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L29/00 the devices being arranged next and on each other, i.e. mixed assemblies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5385—Assembly of a plurality of insulating substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the power semiconductor module includes
- the invention relates to a power semiconductor module with the features specified in the preamble of independent claim 1.
- Such a power semiconductor module has become known, for example, from WO 98/15005 and has a plurality of semiconductor components which are electrically connected on the upper side to a conductor level of a first carrier substrate and on the underside to a conductor level of a second carrier substrate.
- the stack formed from the two carrier substrates and the semiconductor components arranged therebetween can be expanded by superimposing further carrier substrates, a layer with semiconductor components being provided between each two carrier substrates.
- a metal plate which serves as a heat sink, is arranged on at least one of the two outer carrier substrates.
- the arrangement formed from the stack and the heat sink must be used in a hermetically sealed housing part.
- the disadvantage here is that the heat first flows to the heat sink and can only then reach the outside through a housing wall.
- the heat sink is provided as a housing wall, for example as a metallic housing floor, there are major problems with the hermetic sealing of the housing. Since the heat sink must be quite large in order to achieve efficient cooling, an overall bulky structure must be hermetically encapsulated, the design of the housing depending on the size of the heat sink or heat sink used. The heat sink in the encapsulated housing can no longer be changed, so that a flexible adaptation of the heat sink to the type and number of heat-generating semiconductor components is not possible.
- cooling channels must be introduced into the cooling body in a complex manner, through which a cooling liquid flows. Since the cooling channels are formed on the heat sink located in the interior of the housing, considerable effort has to be expended in order to allow the coolant to be supplied and discharged into the hermetically sealed housing.
- the respective top and bottom carrier substrate of the stack also forms an upper and lower housing wall of the power semiconductor module and the heat generated by the semiconductor components is dissipated to the outer carrier substrates, it is achieved that the heat from the outer carrier substrates directly to those surrounding the housing part Outside space can be delivered and is not derived within the housing part on a heat sink.
- the housing seteil advantageously comprises the upper and lower housing wall formed from the outer carrier substrates and a circumferential wall forming the four side walls of the housing part, which is attached to the carrier substrates. In this way, a hermetically sealed and extremely compact structure can be easily realized, which also enables very efficient heat dissipation to the housing environment.
- the power semiconductor module according to the invention can be used without a complex design of cooling channels and without changing the housing structure m a cooling medium flowing around or can be contacted with a heat sink.
- the heat dissipated to the outer carrier substrates is advantageously given off directly to the respectively preferred heat sink. Due to the diverse and flexible possible uses, the power semiconductor module according to the invention offers considerable advantages over the solutions known in the prior art.
- Semiconductor component arranged carrier substrate is produced by soldering, a particularly rapid dissipation of the heat in the stack is made possible on the outer carrier substrates.
- the heat dissipation can be improved further in that the spaces between the stacked carrier substrates are completely filled with a flowable, curable and heat-conducting medium.
- the flowable, curable and heat-conducting medium can advantageously be applied at the same time to the end faces of the carrier substrates that run perpendicular to the main surfaces of the carrier substrates in such a way that the flowable, hardenable medium forms the peripheral wall. In this way, an additional manufacturing step for fixing the wall on the stack can be avoided.
- a capillary flowable adhesive can advantageously be used as the flowable, curable and heat-conducting medium.
- the flowable, curable and heat-conducting medium consists of injection molding compound.
- the stack consisting of the carrier substrates and the semiconductor components can then be produced, for example, in an injection molding process or by transfer molding.
- the connections of the power semiconductor module are advantageously formed by contact elements which are each electrically contacted with a conductor track arranged on a carrier substrate and are led out laterally from the gaps between the carrier substrates and are led outwards through the surrounding wall from the housing part.
- the circumferential wall consists of an electrically conductive material, for example insulating bushings can be provided for the contact elements.
- the insulating bushings can be introduced, for example, as glass bushings in a recess in the circumferential wall.
- the circumferential wall at least partially perpendicular to the the main surface of the carrier substrates extending end faces of the carrier substrates is fixed.
- the wall can be produced, for example, from a single metal strip, which is glued or soldered onto the end faces of the carrier substrates or attached in some other way.
- peripheral wall by at least one closed peripheral frame which is inserted between an upper and a lower carrier substrate in such a way that at least the at least one semiconductor component is completely surrounded by the frame, the frame with the upper carrier substrate and the lower carrier substrate is tightly connected.
- a frame is required for each space between two carrier substrates.
- the frames are preferably designed as metal frames and soldered over a large area to a circumferential conductor track of the upper carrier substrate and to a circumferential conductor track of the lower carrier substrate.
- the frames are advantageously soldered together with the soldering of the semiconductor components on the conductor tracks of the carrier substrates.
- the production of such a power semiconductor module is particularly simple and reliable. Since the circumferential frames do not allow the connections to be led out laterally from the space between the carrier substrates, the electrical connections of the semiconductor components are led to the outside via vias in the carrier substrates and are electrically connected to contact elements on the outside of the outer carrier substrates.
- Another advantageous exemplary embodiment of the invention provides that at least one carrier substrate with an elastically resilient layer is attached to the stack. is arranged, the stack formed in a direction perpendicular to the plane of the carrier substrates being resiliently compressible.
- This advantageously enables the power semiconductor module to be used in a suitably designed groove or pocket of a heat sink, the outer carrier substrates being pressed firmly against the heat sink by the resilience of the elastically resilient layer. A screw connection is not necessary for this.
- the elastically resilient layer can be made, for example, from an elastically deformable plastic.
- FIG. 1 a shows a cross section through a first exemplary embodiment of the power semiconductor module according to the invention
- Fig. Lb a section through Fig. La along the line BB
- Fig. Lc a section through Fig. La along the line CC
- Fig. Ld a section through Fig. La along the line AA
- Fig. 2a a cross section through a second Embodiment of the invention
- FIG. 2b shows a section through FIG. 2a along the line DD
- FIG. 3a shows a cross section through a third embodiment of the invention
- FIG. 3b shows a section through FIG. 3a along the line DD
- FIG. 4 shows a cross section through a fourth Embodiment of the invention.
- the power semiconductor module comprises a stack of several carrier substrates 1, 2, 3.
- the power semiconductor module comprises a total of three carrier substrates, but it is also possible to use a stack of only two carrier substrates or of more than three carrier substrates.
- the support substrates 1, 2, 3 in the example of FIGS. 1 a to 1d are so-called IMS substrates (insulated metal substrates), each of which comprises a metal plate 11, 12, 13.
- the metal plate is provided on at least one main surface with a thin insulating layer 21, 22, 23, 24. In each case a thin metal layer is applied to the insulating layer, m the conductor tracks 31-36 are formed by structuring m in a known manner.
- the first carrier substrate 1 thus comprises the conductor tracks 31, 32 on its underside.
- the carrier substrate 2 has a conductor track 33 on the upper side and two conductor tracks 34 and 35 on the underside.
- the third carrier substrate has a conductor track 36 on its upper side. As shown in FIG. 1 a, the two intermediate spaces 4, 5 between the three carrier substrates 1, 2, 3 are
- Semiconductor devices 40-43 arranged. As can be seen in FIGS. 1 a and 1 c, the underside of the semiconductor components 41 and 43 are soldered onto the conductor track 36 of the lower carrier substrate 3 and are thereby electrically contacted with the conductor track 36.
- the second carrier substrate 2 is soldered to the lower conductor tracks 34 and 35 on the upper side of the semiconductor components 41, 43.
- the conductor track 34 is in each case electrically connected to a first connection, not shown, and the second conductor track 35 is electrically connected to a second connection of the semiconductor components 41, 43.
- Two further semiconductor components 40, 42 are soldered onto the upper conductor track 33 of the middle second carrier substrate.
- the end of the stack is formed by a first carrier substrate 1, which connects to the semiconductor components with conductor tracks 31, 32 40.42 is soldered.
- Semiconductor components 40-43 are, for example, power transistors.
- the stack structure is not limited to the exemplary embodiment shown. In this way, further semiconductor components and other electronic circuit points can be provided in each interstice 4, 5 of the stack structure.
- the semiconductor components can also be connected to the conductor tracks 31-36 via an electrically conductive adhesive.
- the soldering of the semiconductor components is preferred, since the solder connections lead to a particularly rapid dissipation of the heat generated by the semiconductor components onto the outer carrier substrates 1 and 3.
- carrier substrates can be introduced into the carrier substrates in order to connect the different interconnect levels with one another or to improve the heat dissipation in a direction perpendicular to the carrier substrates.
- carrier substrates is not limited to IMS substrates.
- DCB substrates Direct copper bonded
- a ceramic core or other suitable substrates can also be used.
- the upper carrier substrate 1 and the lower carrier substrate 3 of the essentially cuboid stack form an upper and lower housing wall of the power semiconductor module.
- the four side walls of the housing part are formed by a circumferential wall 70, which is fixed to the end faces 15, 16, 17 of the carrier substrates that run perpendicular to the main surfaces of the carrier substrates 1, 2, 3.
- the wall 70 can be designed as a metal foil and is attached to the end faces of the carrier substrates, for example by soldering, gluing or in some other way.
- m Fig. Lb and ld are shown six contact elements 51-56 contacted each with one of the conductor tracks 31-36.
- the ends of the contact elements facing the power semiconductor module are soldered to the associated conductor tracks in the gaps 4, 5 of the carrier substrates or are contacted in some other suitable way.
- the contact element 53 is electrically connected to the conductor track 33, for example.
- the contact elements 51, 55 are soldered to the upper conductor tracks 31 and 32, which cannot be seen in FIG. 1 d. This can be done together with the soldering of the semiconductor components.
- the ends of the contact elements 51 to 56 facing away from the power semiconductor module are led out of the housing part through the wall 70.
- Glass feedthroughs 59 which are provided in openings on the end wall 71 of the wall 70 and concentrically surround the contact elements, serve to isolate the contact elements from the metallic wall 70.
- the wall 70 can be formed in one part or in several parts.
- the end wall 71 with the glass leadthroughs can be produced separately and connected with a U-shaped metal foil wrapped around the carrier substrates, as can best be seen in FIG. Id. If the end wall 71 is slightly spaced from the stack of carrier substrates, as shown in FIG.
- covers 72, 73 which are connected to the upper and lower housing wall on the one hand and to the end wall 71 on the other hand, serve to seal the housing part ,
- the end wall 71 can also directly on one
- the possible distance between the end wall 71 and the carrier substrates and the gaps 4, 5 between the carrier substrates can be filled with a flowable, curable and heat-conducting medium, for example a capillary adhesive. which is known as underfill from flip-chip technology, for example.
- the flowable, curable and heat-conducting medium improves the heat dissipation to the outer carrier substrates 1, 3 and also increases the tightness of the housing formed.
- the housing part is preferably hermetically sealed by fixing the wall 70 to the end walls 15, 16, 17.
- FIGS. 2a and 2b Another exemplary embodiment of the invention is shown in FIGS. 2a and 2b.
- the three carrier substrates 1, 2, 3 consist of DCB substrates, each of which has a ceramic plate 61, 62, 63 made of, for example, Al 2 O 3 or AIN, which is coated on its top and bottom with a copper layer.
- Printed conductors 30-37 are structured in the copper layers, the printed conductors 31 to 36 corresponding to the printed conductors shown in FIGS. 1a and 1c.
- Semiconductor components 40-47 which are soldered to the conductor tracks 31 to 36 as described in the first exemplary embodiment, are arranged in the spaces 4.5 between the carrier substrates 1, 2, 3.
- the circumferential wall is formed here by two circumferential rectangular frames 80, wherein in each case an interstice 4, 5 is arranged in a closed frame which surrounds the semiconductor components accommodated there.
- the frames 80 are preferably metallic frames that are soldered to circumferential conductor tracks 38, 39 of the carrier substrates.
- the upper frame 80 is, for example, soldered to the carrier substrate 2 with a closed conductor track 39 and to the carrier substrate 1 with a closed conductor track 38, the semiconductor components 40, 42, 44, 46 all being located within the closed conductor tracks 38, 39 the carrier substrates 1, 2 are arranged.
- the electrical connections of the power semiconductor module are not led out of the stack on the sides, but via through contacts.
- tion 81-86 connected to contact elements 51-56 on the outer sides of the outer carrier substrates 1,3.
- the contact elements 51-56 are formed by structuring from the outer conductor tracks 30 and 37 of the stack and, if necessary, are reinforced by metal foils.
- the ends of the contact elements 51-56 facing away from the power semiconductor module preferably protrude from the power semiconductor module as connecting lugs.
- the conductor tracks 31 and 32 connected to the upper connections of the semiconductor components 40, 42, 44, 46 can be led directly to the outside via plated-through holes 81 and 85, while those with the lower connection surface of the Semiconductor components 40, 42, 44, 46 connected to interconnect 33 are soldered to via 83 via a contact piece 88.
- the soldering of the contact piece 88 can be carried out together with the soldering of the semiconductor components 40, 42, 44, 46, the height of the contact piece corresponding approximately to the height of the semiconductor components m. The same applies to the conductor tracks 34-36 and the lower semiconductor components 41, 43, 45, 47 and lower contact pieces 88.
- FIGS. 3a and 3b show a third exemplary embodiment which differs from the example shown in FIGS. 2a and 2b only in that the central carrier substrate 2 is constructed differently.
- the carrier substrate 2 comprises a central layer 90 which is elastically resilient.
- the layer 90 consists of an elastically deformable plastic or of several spring elements arranged in one plane.
- a ceramic layer 62a and 62b is applied to the top and bottom of the elastically deformable layer 90.
- a conductor track 33 and 34 is applied to the side of the ceramic layer 62a and 62b facing away from the elastic layer 90.
- the power half term module is constructed in the same way as the m in FIG. example provided.
- the stack of carrier substrates can be compressed perpendicular to the main surface of the carrier substrates by the elastically resilient layer 90. Despite the deformability of the stack, however, the housing of the power semiconductor module is always tightly sealed, since the two frames 80 move relative to one another in the event of compression.
- the power semiconductor module shown can be used, for example, by pressing together the groove-shaped receptacle of a heat sink 95. Due to the resilience of the elastically resilient layer, the outer carrier substrates 1 and 3 with the outer conductor tracks 30 and 37 are pressed firmly against the heat sink, thus improving the heat dissipation. It is not necessary to screw the power semiconductor module to the heat sink.
- Fig. 4 shows a fourth embodiment of the invention.
- the carrier substrates 1, 2, 3 are DCB substrates with a central ceramic plate 61, 62, 63.
- the circumferential wall here is not formed by a wound wall fastened to the carrier substrates and also not by a plurality of stacked circumferential frames, but by injection molding compound 101, which in such a way tired of a correspondingly designed injection mold Spaces 4.5 between the carrier substrates 1, 2, 3 and onto the end faces 15, 16, 17 of the carrier substrates is sprayed in such a way that after the mold has been removed from the mold, a peripheral wall 100 made of plastic material remains on the end faces 15-17, which the Power semiconductor module metically encapsulated.
- the connections 51-56 of the power semiconductor module are formed by contact elements which are soldered to the conductor tracks 31-35 in a manner similar to that in FIG. 1. The contact elements can advantageously be bent into a desired shape before overmolding.
- the power semiconductor module shown in FIGS. 1-4 can be introduced with a flowing cooling liquid or the air flow of a cooling unit.
- the outer carrier substrates 1, 3 are then cooled directly by a coolant flowing around the housing part.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19950026 | 1999-10-09 | ||
DE19950026A DE19950026B4 (en) | 1999-10-09 | 1999-10-09 | The power semiconductor module |
PCT/DE2000/003529 WO2001027997A2 (en) | 1999-10-09 | 2000-10-07 | Power semiconductor module |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1145316A2 true EP1145316A2 (en) | 2001-10-17 |
EP1145316A3 EP1145316A3 (en) | 2002-02-13 |
Family
ID=7925962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00982969A Withdrawn EP1145316A3 (en) | 1999-10-09 | 2000-10-07 | Power semiconductor module |
Country Status (7)
Country | Link |
---|---|
US (1) | US6697257B1 (en) |
EP (1) | EP1145316A3 (en) |
JP (1) | JP4886137B2 (en) |
KR (1) | KR100665933B1 (en) |
DE (1) | DE19950026B4 (en) |
HU (1) | HU225864B1 (en) |
WO (1) | WO2001027997A2 (en) |
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JP3780230B2 (en) | 2002-07-03 | 2006-05-31 | 株式会社日立製作所 | Semiconductor module and power conversion device |
JP3673776B2 (en) | 2002-07-03 | 2005-07-20 | 株式会社日立製作所 | Semiconductor module and power conversion device |
JP3847676B2 (en) * | 2002-07-15 | 2006-11-22 | 三菱電機株式会社 | Power semiconductor device |
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DE10303103B4 (en) * | 2003-01-28 | 2009-07-09 | Ixys Semiconductor Gmbh | Semiconductor component, in particular power semiconductor component |
DE10303463B4 (en) * | 2003-01-29 | 2006-06-14 | Infineon Technologies Ag | Semiconductor device having at least two integrated in a housing and contacted by a common contact clip chips |
DE10352079A1 (en) * | 2003-11-08 | 2005-06-02 | Robert Bosch Gmbh | Electric motor, and method of making such |
US7068515B2 (en) * | 2004-11-24 | 2006-06-27 | Hewlett-Packard Development Company, L.P. | Multi-chip module with stacked redundant power |
US7623349B2 (en) * | 2005-03-07 | 2009-11-24 | Ati Technologies Ulc | Thermal management apparatus and method for a circuit substrate |
DE102005039478B4 (en) | 2005-08-18 | 2007-05-24 | Infineon Technologies Ag | Power semiconductor device with semiconductor chip stack and method for producing the same |
JP4979909B2 (en) | 2005-08-19 | 2012-07-18 | 株式会社日立製作所 | Power converter |
US7554188B2 (en) * | 2006-04-13 | 2009-06-30 | International Rectifier Corporation | Low inductance bond-wireless co-package for high power density devices, especially for IGBTs and diodes |
DE102006018161A1 (en) | 2006-04-19 | 2007-10-25 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic component module |
JP4564937B2 (en) | 2006-04-27 | 2010-10-20 | 日立オートモティブシステムズ株式会社 | Electric circuit device, electric circuit module, and power conversion device |
US8089150B2 (en) * | 2006-11-14 | 2012-01-03 | Rinehart Lawrence E | Structurally robust power switching assembly |
JP4694514B2 (en) * | 2007-02-08 | 2011-06-08 | トヨタ自動車株式会社 | Semiconductor device cooling structure |
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JP5434914B2 (en) * | 2008-06-12 | 2014-03-05 | 株式会社安川電機 | Power module and control method thereof |
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WO2019012677A1 (en) * | 2017-07-14 | 2019-01-17 | 新電元工業株式会社 | Electronic module |
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1999
- 1999-10-09 DE DE19950026A patent/DE19950026B4/en not_active Expired - Fee Related
-
2000
- 2000-10-07 EP EP00982969A patent/EP1145316A3/en not_active Withdrawn
- 2000-10-07 US US09/857,802 patent/US6697257B1/en not_active Expired - Fee Related
- 2000-10-07 HU HU0200604A patent/HU225864B1/en not_active IP Right Cessation
- 2000-10-07 WO PCT/DE2000/003529 patent/WO2001027997A2/en active Application Filing
- 2000-10-07 JP JP2001530117A patent/JP4886137B2/en not_active Expired - Fee Related
- 2000-10-07 KR KR1020017007064A patent/KR100665933B1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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See references of WO0127997A2 * |
Also Published As
Publication number | Publication date |
---|---|
HUP0200604A2 (en) | 2002-06-29 |
HU225864B1 (en) | 2007-11-28 |
DE19950026A1 (en) | 2001-04-12 |
EP1145316A3 (en) | 2002-02-13 |
JP2003511864A (en) | 2003-03-25 |
DE19950026B4 (en) | 2010-11-11 |
HUP0200604A3 (en) | 2003-02-28 |
WO2001027997A3 (en) | 2001-12-06 |
WO2001027997A2 (en) | 2001-04-19 |
KR100665933B1 (en) | 2007-01-09 |
JP4886137B2 (en) | 2012-02-29 |
US6697257B1 (en) | 2004-02-24 |
KR20010104308A (en) | 2001-11-24 |
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