DE19849919A1 - Active semiconductor module - Google Patents

Active semiconductor module

Info

Publication number
DE19849919A1
DE19849919A1 DE19849919A DE19849919A DE19849919A1 DE 19849919 A1 DE19849919 A1 DE 19849919A1 DE 19849919 A DE19849919 A DE 19849919A DE 19849919 A DE19849919 A DE 19849919A DE 19849919 A1 DE19849919 A1 DE 19849919A1
Authority
DE
Germany
Prior art keywords
base plate
ceramic substrate
semiconductor module
module
active semiconductor
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Withdrawn
Application number
DE19849919A
Other languages
German (de)
Inventor
Heiko Dr Deumer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Duewag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Duewag AG filed Critical Duewag AG
Priority to DE19849919A priority Critical patent/DE19849919A1/en
Publication of DE19849919A1 publication Critical patent/DE19849919A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427Cooling by change of state, e.g. use of heat pipes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

The module has at least one semiconductor module (1). This is fastened to a metallised, electrically insulating ceramic substrate (2). The module also has a base plate (3) which has at least one heat pipe (4). The ceramic substrate is soldered directly onto the base plate.

Description

Die Erfindung bezieht sich auf ein Leistungshalbleiter­ modul mit mindestens einem Halbleiterbauelement, das auf einem metallisierten, elektrisch isolierenden Keramik­ substrat befestigt ist, und mit einer Basisplatte, die zumindest ein Wärmerohr aufweist.The invention relates to a power semiconductor module with at least one semiconductor component based on a metallized, electrically insulating ceramic substrate is attached, and with a base plate, the has at least one heat pipe.

Die im Halbleiterbauelement entstehende Verlustwärme begrenzt in der Regel die elektrischen Parameter, insbe­ sondere die Schaltfrequenz. Vor allem in Anbetracht der mit modernen Halbleiterbauelementen erreichbaren Lei­ stungsdichten werden Technologien zur Kühlung realisiert, die insbesondere auf dem Einsatz von Wärmerohren (heat­ pipes) beruhen.The heat loss generated in the semiconductor component usually limits the electrical parameters, esp special the switching frequency. Especially considering the Lei achievable with modern semiconductor components technologies for cooling are realized, which are particularly based on the use of heat pipes (heat pipes).

Bei einem zum Stand der Technik gehörenden Leistungs­ halbleitermodul mit den eingangs genannten Gattungsmerk­ malen ist das mit dem Halbleiterbauelement versehene Keramiksubstrat durch Löten mit einer Trägerplatte (Zwischen-Basisplatte) verbunden, die ihrerseits über Schrauben an der das Wärmerohr aufweisenden Basisplatte des gesamten Kühlkörpers befestigt ist. Bei dieser Bauweise wird als nachteilig angesehen, daß die Träger­ platte und die Basisplatte zum Erzeugen der erforder­ lichen ebenen Kontaktflächen mechanisch bearbeitet werden müssen; zusätzlich ist es notwendig, zwischen den Kon­ taktflächen der beiden vorgenannten Platten Wärmeleitpa­ ste einzusetzen. With a performance belonging to the state of the art semiconductor module with the generic type mentioned painting is that provided with the semiconductor component Ceramic substrate by soldering with a carrier plate (Intermediate base plate) connected, which in turn via Screws on the base plate containing the heat pipe of the entire heat sink is attached. At this Construction is considered disadvantageous that the carrier plate and the base plate to produce the required planar contact surfaces are machined mechanically have to; in addition, it is necessary to distinguish between the con tact surfaces of the two aforementioned plates ste use.  

Durch die DE-OS 35 04 992 ist ein Leistungshalbleitermo­ dul mit zumindest einem Wärmerohr bekannt, das auf der dem Halbleiterbauelement zugewandten Seite im Substrat integriert ist. Die Nachteile eines solchen Moduls liegen in dem erheblichen Fertigungsaufwand und der begrenzten Wärmeabfuhr.DE-OS 35 04 992 is a power semiconductor mo dul with at least one heat pipe known on the the side facing the semiconductor component in the substrate is integrated. The disadvantages of such a module lie in the considerable manufacturing effort and the limited Heat dissipation.

Der Erfindung liegt die Aufgabe zugrunde, ein Leistungs­ halbleitermodul im Hinblick auf eine möglichst hohe Verlustleistungsabfuhr und eine einfache, kostengünstige Fertigung auszubilden.The invention has for its object a performance semiconductor module with a view to the highest possible Power dissipation and a simple, inexpensive Train manufacturing.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Keramiksubstrat direkt auf die Basisplatte gelötet ist.This object is achieved in that the ceramic substrate is soldered directly onto the base plate is.

Das direkte Auflöten des Keramiksubstrats auf die Basis­ platte ermöglicht vorteilhaft die Anwendung von Stan­ dardbauteilen und damit eine besonders kostengünstige Fertigung des Leistungshalbleitermoduls. Durch das besagte direkte Auflöten, bei dem eine früher übliche Trägerplatte (Zwischen-Basisplatte) entfällt, verringert sich außerdem günstig der thermische Übergangswiderstand innerhalb des Moduls, so daß eine höhere, forcierte Abfuhr von Verlustleistung erreicht wird.The direct soldering of the ceramic substrate onto the base plate advantageously allows the use of Stan standard components and thus a particularly cost-effective one Production of the power semiconductor module. By the said direct soldering, in which a previously common Carrier plate (intermediate base plate) omitted, reduced the thermal contact resistance is also favorable inside the module so that a higher, forced Power dissipation is achieved.

Gemäß dem in der Zeichnung schematisch und als Ausschnitt dargestellten Ausführungsbeispiel eines Leistungshalb­ leitermoduls nach der Erfindung ist ein Leistungshalb­ leiter-Bauelement 1 durch Löten (Lotschicht 5) mit einem elektrisch isolierenden Keramiksubstrat 2 verbunden, das auf jeder Seite eine Kupferschicht 6 aufweist. Die Kupferschichten 6 können zum besseren Löten vernickelt sein. Um die thermische Ausdehnung zu begrenzen, besteht die Möglichkeit, hier nicht gezeigte Molybdänzwischen­ scheiben einzusetzen, die allerdings nicht zwingend sind. Die Dicke des Keramiksubstrats 2 kann den geforderten elektrischen Parametern frei angepaßt werden, beispiels­ weise zum Erzielen sehr hoher Isolationswerte des Halb­ leiterbauelements 1 gegenüber dem Bezugspotential einer Basisplatte 3.According to the embodiment of a power semiconductor module according to the invention, shown schematically and as a detail in the drawing, a power semiconductor component 1 is connected by soldering (solder layer 5 ) to an electrically insulating ceramic substrate 2 which has a copper layer 6 on each side. The copper layers 6 can be nickel-plated for better soldering. In order to limit the thermal expansion, it is possible to use molybdenum washers, not shown here, but these are not mandatory. The thickness of the ceramic substrate 2 can be freely adapted to the required electrical parameters, for example to achieve very high insulation values of the semiconductor component 1 with respect to the reference potential of a base plate 3 .

Das Keramiksubstrat 2 ist über seine untere Kupferschicht 6 direkt auf die Basisplatte 3 gelötet (Lotschicht 7), in die ein Wärmerohr 4 eingelassen ist. Es können Wärmerohre 4 mit oder ohne Kapillarstruktur verwendet werden. Die Anzahl der Wärmerohre 4 sowie deren Größe und die Anzahl der Kühlrippen sind dem jeweiligen Anwendungsfall ent­ sprechend auszuwählen. Nach dem Auflöten des Keramiksub­ strats 2 werden die Wärmerohre 4 mit einer für den Anwendungsfall geeigneten Flüssigkeit gefüllt und mittels üblicher Technologien verschlossen.The ceramic substrate 2 is soldered directly via its lower copper layer 6 onto the base plate 3 (solder layer 7 ), into which a heat pipe 4 is embedded. Heat pipes 4 with or without a capillary structure can be used. The number of heat pipes 4 , their size and the number of cooling fins are to be selected accordingly for the respective application. After soldering the ceramic substrate 2 , the heat pipes 4 are filled with a liquid suitable for the application and sealed using conventional technologies.

BezugszeichenlisteReference list

11

Leistungshalbleiter-Bauelement
Power semiconductor component

22nd

Keramiksubstrat
Ceramic substrate

33rd

Basisplatte
Base plate

44th

Wärmerohr
Heat pipe

55

Lotschicht
Solder layer

66

Kupferschicht
Copper layer

77

Lotschicht
Solder layer

Claims (1)

Leistungshalbleitermodul mit mindestens einem Halblei­ terbauelement (1), das auf einem metallisierten, elek­ trisch isolierenden Keramiksubstrat (2) befestigt ist, und mit einer Basisplatte (3), die zumindest ein Wärme­ rohr (4) aufweist, dadurch gekennzeichnet, daß das Keramiksubstrat (2) direkt auf die Basisplatte (3) gelötet ist.Power semiconductor module with at least one semiconductor component ( 1 ) which is fastened on a metallized, electrically insulating ceramic substrate ( 2 ), and with a base plate ( 3 ) which has at least one heat pipe ( 4 ), characterized in that the ceramic substrate ( 2 ) is soldered directly onto the base plate ( 3 ).
DE19849919A 1997-11-07 1998-10-29 Active semiconductor module Withdrawn DE19849919A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19849919A DE19849919A1 (en) 1997-11-07 1998-10-29 Active semiconductor module

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29719778U DE29719778U1 (en) 1997-11-07 1997-11-07 Power semiconductor module
DE19849919A DE19849919A1 (en) 1997-11-07 1998-10-29 Active semiconductor module

Publications (1)

Publication Number Publication Date
DE19849919A1 true DE19849919A1 (en) 1999-05-12

Family

ID=8048308

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29719778U Expired - Lifetime DE29719778U1 (en) 1997-11-07 1997-11-07 Power semiconductor module
DE19849919A Withdrawn DE19849919A1 (en) 1997-11-07 1998-10-29 Active semiconductor module

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE29719778U Expired - Lifetime DE29719778U1 (en) 1997-11-07 1997-11-07 Power semiconductor module

Country Status (1)

Country Link
DE (2) DE29719778U1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001003484A1 (en) * 1999-07-01 2001-01-11 Nokia Corporation Method of installing heat source, and micro heat pipe module
DE10137748A1 (en) * 2001-08-01 2003-02-13 Conti Temic Microelectronic Cooling system for heat-generating semiconductor component e.g. for vehicle brake control system, has hollow heat pipe extending between component and heat sink body
US6981322B2 (en) 1999-06-08 2006-01-03 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US6988315B2 (en) 1998-06-08 2006-01-24 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US7150312B2 (en) 2001-11-27 2006-12-19 Thermotek, Inc. Stacked low profile cooling system and method for making same
US7857037B2 (en) 2001-11-27 2010-12-28 Thermotek, Inc. Geometrically reoriented low-profile phase plane heat pipes
US9113577B2 (en) 2001-11-27 2015-08-18 Thermotek, Inc. Method and system for automotive battery cooling

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7686069B2 (en) 1998-06-08 2010-03-30 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US6988315B2 (en) 1998-06-08 2006-01-24 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US7322400B2 (en) 1998-06-08 2008-01-29 Thermotek, Inc. Cooling apparatus having low profile extrusion
US7802436B2 (en) 1998-06-08 2010-09-28 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US8418478B2 (en) 1998-06-08 2013-04-16 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
US6981322B2 (en) 1999-06-08 2006-01-03 Thermotek, Inc. Cooling apparatus having low profile extrusion and method of manufacture therefor
WO2001003484A1 (en) * 1999-07-01 2001-01-11 Nokia Corporation Method of installing heat source, and micro heat pipe module
DE10137748A1 (en) * 2001-08-01 2003-02-13 Conti Temic Microelectronic Cooling system for heat-generating semiconductor component e.g. for vehicle brake control system, has hollow heat pipe extending between component and heat sink body
US7150312B2 (en) 2001-11-27 2006-12-19 Thermotek, Inc. Stacked low profile cooling system and method for making same
US7857037B2 (en) 2001-11-27 2010-12-28 Thermotek, Inc. Geometrically reoriented low-profile phase plane heat pipes
US8621875B2 (en) 2001-11-27 2014-01-07 Thermotek, Inc. Method of removing heat utilizing geometrically reoriented low-profile phase plane heat pipes
US9113577B2 (en) 2001-11-27 2015-08-18 Thermotek, Inc. Method and system for automotive battery cooling
US9877409B2 (en) 2001-11-27 2018-01-23 Thermotek, Inc. Method for automotive battery cooling

Also Published As

Publication number Publication date
DE29719778U1 (en) 1999-04-01

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Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8127 New person/name/address of the applicant

Owner name: SIEMENS DUEWAG SCHIENENFAHRZEUGE GMBH, 47829 KREFE

8127 New person/name/address of the applicant

Owner name: SIEMENS AG, 80333 MUENCHEN, DE

8110 Request for examination paragraph 44
8130 Withdrawal