WO2006067013A1 - Halbleitermodul mit geringer thermischer belastung - Google Patents
Halbleitermodul mit geringer thermischer belastung Download PDFInfo
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- WO2006067013A1 WO2006067013A1 PCT/EP2005/056097 EP2005056097W WO2006067013A1 WO 2006067013 A1 WO2006067013 A1 WO 2006067013A1 EP 2005056097 W EP2005056097 W EP 2005056097W WO 2006067013 A1 WO2006067013 A1 WO 2006067013A1
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Definitions
- the invention relates to a semiconductor module having at least one carrier body and at least two semiconductor components arranged on a surface section of the carrier body.
- the semiconductor module is, for example, a
- the power semiconductor module has a plurality of electrically controllable power semiconductor components combined on one or more carrier bodies (circuit carriers, substrates) and interconnected with one another.
- An electrically controllable power semiconductor component used in this case is, for example, a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) or an IGBT (Insulated Gate Bipolar Transistor). These controllable power semiconductor components are characterized by the fact that high currents can be switched in the kA range. Bonding wires are usually used for electrically contacting the contacts of the power semiconductor components.
- Power semiconductor module is known for example from WO 03/030247 A2.
- the power semiconductor components are arranged on a substrate.
- the substrate is, for example, a DCB (Direct Copper Bonding) substrate, which consists of a carrier layer of a ceramic material, on both sides of which electrically conductive layers of copper (copper foils) are applied.
- the ceramic material is, for example, aluminum oxide (Al 2 O 3 ).
- the electrical contacting of the contacts of the power semiconductor components is planar and large area.
- the procedure for electrically contacting a contact of a power semiconductor component is as follows: A power semiconductor component is soldered to one of the electrically conductive layers of copper of the DCB substrate such that an electrical contact surface of the power semiconductor component pointing away from the substrate is present.
- the power semiconductor component is, for example, a MOSFET.
- the contact area of the MOSFET is a source, gate or drain chip area of the MOSFET.
- a plastic film based on polyimide or epoxy is laminated to the power semiconductor component and to the substrate under vacuum, so that the plastic film is tightly connected to the power semiconductor component and the substrate. The plastic film covers the power semiconductor device and the substrate.
- a window is produced in the plastic film.
- the window is generated for example by laser ablation.
- the corresponding contact surface of the power semiconductor device is exposed.
- the electrical contacting of the contact surface takes place.
- a mask is applied to the plastic film, which leaves the contact surface and regions of the plastic film for a connecting line to the contact surface.
- the connecting line for making electrical contact with the contact surface of the power semiconductor component is formed.
- the result is a power semiconductor module with a multilayer structure of electrically insulating and electrically conductive layers.
- the power semiconductor components of the known power semiconductor modules are characterized by a considerable power loss. Therefore, in the operation of the power semiconductor modules, a strong heating of the power semiconductor components and thus also a strong heating of the substrate on which the
- Power semiconductor components are arranged. This results in a strong thermal load of the semiconductor module. To prevent local overheating, the power semiconductor module must be cooled. It must be ensured for an efficient cooling device. This can only be done with additional effort.
- the object of the present invention is to provide a semiconductor module which has a lower thermal load in operation compared to the prior art.
- a semiconductor module is specified with at least one carrier body, one on one
- Surface portion of the carrier body disposed semiconductor device having a contact surface facing away from the surface portion of the carrier body, at least one disposed on the surface portion of the carrier body further semiconductor device with a further contact surface facing away from the surface portion of the carrier body, wherein the semiconductor devices are arranged side by side on the surface portion, the contact surface of the semiconductor device and the further contact surface of the further semiconductor device are contacted planar and a distance between the semiconductor devices along the surface portion is greater than a lateral dimension of at least one of the semiconductor devices.
- the lateral dimension corresponds to a dimension along a planar extent of the semiconductor component.
- the Lateral dimension is, for example, a length or a width of the semiconductor device.
- the distance is preferably below 0, 5 m. In a particular embodiment, the distance is selected from the range of 5 mm to 100 mm inclusive and more particularly 10 mm to 50 mm inclusive.
- the semiconductor devices are spaced from each other. In this case, the distance between the semiconductor components can be chosen to be relatively large. This is possible through the planar contacting.
- the distance between the semiconductor devices to be contacted should be as small as possible, since the bonding wires have significantly higher inductances than flat, planar connecting lines and the height of the inductances occurring increases with the length of the bonding wires.
- short bonding wires mean a small distance between the semiconductor devices.
- the small distance leads to a high thermal load of the semiconductor module.
- the semiconductor components Due to the planar contacting, it is possible to contact the semiconductor components over greater distances without the inductances occurring increasing to the same extent as with bonding wires.
- the semiconductor components can be arranged at a greater distance from each other. This results in the operation of the semiconductor module to a heat or. Temperature spread. Heat does not occur concentrated, but spreads out. The occurring temperature peaks are smaller. For example, not a single local temperature maximum, but several, but smaller local temperature maxima occur. The thermal load of the semiconductor module is significantly reduced compared to the prior art. Elaborate cooling devices for cooling the semiconductor module are no longer necessary.
- at least one of the contact surfaces of the semiconductor components is contacted by means of an electrical connection line, which has a deposition of an electrically conductive material.
- Deposition is to be understood as meaning a solid material which is produced by separation from a gas phase and / or from a liquid phase.
- the gas phase or the liquid phase are formed by (reactive) mixtures. From these mixtures, the deposit is formed.
- the deposition is, for example, a vapor phase deposition.
- the vapor phase deposition is produced, for example, by a physical vapor deposition (PVD) process or by a chemical vapor deposition (CVD) process.
- the deposition may also be a liquid phase deposition.
- the liquid phase deposition is for example a galvanic deposition.
- the electrodeposition consists, for example, of elemental copper which is deposited from a solution containing copper ions by electrolysis.
- connection line for making electrical contact with the contact surface of one of the semiconductor components may be connected to an electrical load connection to the outside.
- the contacting takes place in particular internally, ie within the semiconductor module.
- the contact surface of the semiconductor device and the further contact surface of the further semiconductor device by means of the deposition of the electrically conductive material are electrically conductively connected to each other.
- the connecting line Through the connecting line, the two semiconductor devices are electrically connected together. In this sense, it is possible, for example, a single semiconductor device by a plurality of smaller, juxtaposed
- the carrier body has a cooling device.
- the carrier body in the form of a substrate for example, DCB substrate
- the heat sink is for example a
- the carrier body itself acts as a heat sink for the semiconductor components of the semiconductor module.
- the semiconductor components are applied in an electrically insulated manner to the copper block which acts as a heat sink.
- an electrically insulating, but thermally conductive adhesive is used.
- the heat sink not only has very good thermally conductive material.
- the shape of the heat sink can be chosen so that heat is dissipated very well. In a particular embodiment, therefore, the heat sink has a curvature.
- a surface of the heat sink is curved or. arched.
- the heat sink has cooling fins. It is also conceivable that the heat sink is a bent or. folded copper sheet is.
- the copper sheet acts as a carrier body. Along the surface portion of the copper sheet on which the semiconductor devices are arranged, the copper sheet has, for example between semiconductor devices one or more curvatures.
- any semiconductor device is conceivable.
- the semiconductor device an LED (Light Emitting Diode).
- at least one of the semiconductor components is a power semiconductor component.
- the power semiconductor component is selected from the group diode, IGBT, MOSFET, thyristor and / or bipolar
- the power semiconductor components are combined to form a power semiconductor module.
- a circuit breaker is realized, which is used for a power converter.
- the invention provides the following essential advantages:
- the invention makes it possible to obtain a semiconductor module which, due to the distance between the semiconductor components during operation, is exposed to a lower thermal load compared to a semiconductor module of the prior art.
- the Halbleiermodul can be compared to a conventional semiconductor module at approximately the same thermal stress with a larger active area of the semiconductor devices and thus operated at a higher power. Due to the lower thermal load, a cooling device with a lower compared to the prior art cooling performance can be used.
- FIG. 1 shows a semiconductor module in a lateral cross section.
- FIG. 2 shows a section of the semiconductor module in a lateral cross section.
- FIG. 3 shows a further semiconductor module in a lateral cross section.
- the exemplary embodiments each relate to a semiconductor module in the form of a power semiconductor module 1.
- the power semiconductor module 1 has a
- the power semiconductor devices 12 and 13 are IGBTs. According to alternative embodiments, the power semiconductor devices 12 and 13 are MOSFETs.
- the contact surfaces 121 and 131 of the power semiconductor components 12 and 13 are contacted over a large area.
- the power semiconductor components 12 and 13 are applied to a surface portion 111 of a carrier body 11.
- the carrier body 11 is a DCB substrate.
- the DCB substrate has a carrier layer 112 of aluminum oxide and electrically conductive layers 113 and 114 of copper applied to both sides (see FIG.
- the power semiconductor device 12 and the power semiconductor device 12, respectively, are. soldered the other power semiconductor device. This results in each case a solder layer 116.
- Power semiconductor components 12 and 13 along the surface portion 111 of the carrier body 11 is greater than a lateral dimension 123 of the
- the DCB substrate 11 soldered onto a heat sink 17 (see Figure 1).
- the heat sink 17 is made of copper.
- the DCB substrate 11 is soldered onto the heat sink 17 via the further line layer 114.
- the result is a solder layer 171 between the DCB substrate 11 and the heat sink 17.
- each of the power semiconductor components 12 and 13 is applied to a respective DCB substrate (see FIG.
- the DCB substrates are soldered onto a folded copper sheet 172.
- the folded copper sheet 172 has at least one curvature 173 between the power semiconductor components 12 and 13. The result is a heat sink 17 with a relatively large surface. By passing a cooling fluid past the folded copper sheet 172, efficient heat and temperature spreading can be provided.
- a cover film 174 is above the power semiconductor components 12 and 13 or. their electrical connection lines laminated.
- the power semiconductor components 12 and 13 are so on the DCB substrate 11 and. soldered onto the DCB substrates 11, in that the contact surface 121 of the power semiconductor component
- an insulating film (plastic film) 14 is laminated under vacuum.
- the insulating film 14 is laminated onto the DCB substrate 11 and the power semiconductor components 12 and 13 in such a way that a surface contour 122 of the power semiconductor component 12, a further surface contour 132 of the further power semiconductor component 13 and a surface contour 115 of the DCB substrate 11 in a surface contour 141 of FIG Insulation film 14 is shown, which is the DCB substrate 11 and the power semiconductor device 12 and 13 turned away.
- the topography, which results from the power semiconductor component 12, the further power semiconductor component 13 and the DCB substrate 11, is formed by the insulation film 14.
- the procedure is as follows: First, an arrangement of the power semiconductor components 12 and 33 on the substrate 11 or. provided on the substrates 11. Subsequently, a plastic film 14 is laminated under vacuum. By opening the window 142 and the further window 143 in the plastic film 14, the contact surface 121 of the power semiconductor device 12 and the other
- the contact surfaces 121 and 131 are electrically connected to each other. It will be one electrical connection line 16 between the contact surfaces 121 and 131 generates. For this purpose, a deposit 161 is produced on the contact surfaces 121 and 131 and on the plastic film 14. It is deposited electrically conductive material.
- the deposition 161 has a multilayer structure, not shown. It consists of several Partmetallabborgungen, each take on different functions. A first partial deposit of titanium acts as a primer layer, a second
- each of the contact surfaces 121 and 131 of the power semiconductor components 12 and 13 is electrically conductively connected via an electrical connection line to an external load connection in each case.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/793,919 US20070296078A1 (en) | 2004-12-22 | 2005-11-21 | Semiconductor Module Having Low Thermal Load |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004061907.7 | 2004-12-22 | ||
DE102004061907A DE102004061907A1 (de) | 2004-12-22 | 2004-12-22 | Halbleitermodul mit geringer thermischer Belastung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006067013A1 true WO2006067013A1 (de) | 2006-06-29 |
Family
ID=35788674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/056097 WO2006067013A1 (de) | 2004-12-22 | 2005-11-21 | Halbleitermodul mit geringer thermischer belastung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070296078A1 (de) |
KR (1) | KR20070093433A (de) |
DE (1) | DE102004061907A1 (de) |
WO (1) | WO2006067013A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007046969B3 (de) * | 2007-09-28 | 2009-04-02 | Siemens Ag | Elektronische Schaltung aus Teilschaltungen und Verfahren zu deren Herstellung und demgemäßer Umrichter oder Schalter |
US9406646B2 (en) | 2011-10-27 | 2016-08-02 | Infineon Technologies Ag | Electronic device and method for fabricating an electronic device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903590A (en) * | 1973-03-10 | 1975-09-09 | Tokyo Shibaura Electric Co | Multiple chip integrated circuits and method of manufacturing the same |
US6219253B1 (en) * | 1997-12-31 | 2001-04-17 | Elpac (Usa), Inc. | Molded electronic package, method of preparation using build up technology and method of shielding |
WO2003030247A2 (de) * | 2001-09-28 | 2003-04-10 | Siemens Aktiengesellschaft | Verfahren zum kontaktieren elektrischer kontaktflächen eines substrats und vorrichtung aus einem substrat mit elektrischen kontaktflächen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08288438A (ja) * | 1995-04-14 | 1996-11-01 | Hitachi Ltd | 電子機器の冷却装置 |
US6201701B1 (en) * | 1998-03-11 | 2001-03-13 | Kimball International, Inc. | Integrated substrate with enhanced thermal characteristics |
DE10129006B4 (de) * | 2001-06-15 | 2009-07-30 | Conti Temic Microelectronic Gmbh | Elektronische Baugruppe |
DE10225431A1 (de) * | 2002-06-07 | 2004-01-08 | Siemens Dematic Ag | Verfahren zur Anschlußkontaktierung von elektronischen Bauelementen auf einem isolierenden Substrat und nach dem Verfahren hergestelltes Bauelement-Modul |
DE10320877A1 (de) * | 2003-05-09 | 2004-12-09 | eupec Europäische Gesellschaft für Leistungshalbleiter mbH | Halbleiterbauelement und Verfahren zum Herstellen eines Halbleiterbauelements |
-
2004
- 2004-12-22 DE DE102004061907A patent/DE102004061907A1/de not_active Withdrawn
-
2005
- 2005-11-21 US US11/793,919 patent/US20070296078A1/en not_active Abandoned
- 2005-11-21 KR KR1020077016720A patent/KR20070093433A/ko not_active Application Discontinuation
- 2005-11-21 WO PCT/EP2005/056097 patent/WO2006067013A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903590A (en) * | 1973-03-10 | 1975-09-09 | Tokyo Shibaura Electric Co | Multiple chip integrated circuits and method of manufacturing the same |
US6219253B1 (en) * | 1997-12-31 | 2001-04-17 | Elpac (Usa), Inc. | Molded electronic package, method of preparation using build up technology and method of shielding |
WO2003030247A2 (de) * | 2001-09-28 | 2003-04-10 | Siemens Aktiengesellschaft | Verfahren zum kontaktieren elektrischer kontaktflächen eines substrats und vorrichtung aus einem substrat mit elektrischen kontaktflächen |
Also Published As
Publication number | Publication date |
---|---|
DE102004061907A1 (de) | 2006-07-13 |
US20070296078A1 (en) | 2007-12-27 |
KR20070093433A (ko) | 2007-09-18 |
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