CH422165A - Semiconductor converter elements which are used in a cooling device - Google Patents
Semiconductor converter elements which are used in a cooling deviceInfo
- Publication number
- CH422165A CH422165A CH1401264A CH1401264A CH422165A CH 422165 A CH422165 A CH 422165A CH 1401264 A CH1401264 A CH 1401264A CH 1401264 A CH1401264 A CH 1401264A CH 422165 A CH422165 A CH 422165A
- Authority
- CH
- Switzerland
- Prior art keywords
- cooling device
- converter elements
- semiconductor
- semiconductor converter
- housing
- Prior art date
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
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
Halbleiterstromrichterelemente, welche in einer Kühleinrichtung eingesetzt sind Die Erfindung betrifft Halbleiterstromrichterele- mente, welche in einer Kühleinrichtung eingesetzt sind.
Halbleiterstromrichterelemente werden bekannt lich bei hohen Strömen gekühlt. Zu diesem Zwecke sind sie in eine Kühleinrichtung eingesetzt, welche beispielsweise mit Rippen versehen ist, an denen ein Kühlmittel vorbeiströmt. Die Wärme wird nun in er ster Linie an der Halbleiterscheibe selbst erzeugt und muss möglichst rasch abgeleitet werden können.
Die Halbleiterscheibe selbst ist in ein Gehäuse eingesetzt und dieses Gehäuse wiederum ist erst mit der Kühl- einrichtung verbunden. Es sind,also mindestens zwei Übergänge erforderlich bis zu dem Element, das durch das Kühlmittel bestrichen wird. Der Übergang von einem Teil dieser Anordnung zu einem anderen erhöht den Wärmewiderstand wesentlich, wodurch die Belastbarkeit des Halbleiterelementes vermindert wird.
Bisher ist man so vorgegangen; dass diese Übergänge durch flaches Aufeinanderlegen gebildet werden. Hierdurch ist aber der Übergangswiderstand verhältnismässig hoch, da in der Regel eine völlige Berührung der Fläche nicht erreicht werden kann, sondern durch nicht vermeidliche, wenn auch noch so feine Rauhigkeiten die tatsächlich in Berührung ste hende Oberfläche nur einen geringen Prozentsatz der Gesamtfläche ausmacht. Hierdurch wird der Wärme widerstand unnötigerweise erhöht und die Kühlung erschwert.
Um diesen Nachteil zu vermeiden, wird erfin dungsgemäss vorgeschlagen, dass an der Verbin- dungsstelle zwischen der Kühleinrichtung und dem, das Halbleiterelement enthaltenden Gehäuse einer seits und dem Gehäuse und dem Halbleiterelement andererseits Rillen vorgesehen sind, mit welchen die genannten Teile ineinandergreifen. Beispiele des Erfindungsgegenstandes sind in den Fig. 1 und 2 dargestellt.
In der Fig. 1 ist der obere Teil der Aufriss und der untere Teil der Grundriss eines Halbleiterstromrichterelementes. Beispielsweise ist der Übergang von dem Gehäuse zur Kühleinrich tung dargestellt. Beides ist nur angedeutet.
Das Ge häuse 1 besitzt Erhebungen 2, welche in: Rillen 3 der Kühleinrichtung 4 eingreifen. Hierdurch wird er reicht, dass einmal die Gesamtfläche durch die Ril- lenform erhöht wird und zweitens die Berührung nicht nur in einzelnen Punkten, sondern in jeder Rille vorhanden ist, so dass eine wesentliche Verringerung des Wärmeübergangswiderstandes erreicht werden kann.
Wie der Grundriss in der Fig. 1 zeigt, können die Rillen parallel zueinander liegen oder, wie Fig. 2 zeigt, können sie auch kreisförmig angeordnet sein, was eine Herstellung auf einer Drehbank ermöglicht.
Semiconductor converter elements which are used in a cooling device The invention relates to semiconductor converter elements which are used in a cooling device.
Semiconductor converter elements are known Lich cooled at high currents. For this purpose, they are inserted into a cooling device which is provided with ribs, for example, through which a coolant flows. The heat is now primarily generated on the semiconductor wafer itself and must be able to be dissipated as quickly as possible.
The semiconductor wafer itself is inserted into a housing, and this housing, in turn, is only connected to the cooling device. At least two transitions are required up to the element that is coated by the coolant. The transition from one part of this arrangement to another increases the thermal resistance significantly, as a result of which the load-bearing capacity of the semiconductor element is reduced.
So far this has been done; that these transitions are formed by laying them flat on top of one another. As a result, however, the contact resistance is relatively high, since as a rule complete contact with the surface cannot be achieved, but rather the surface that is actually in contact only makes up a small percentage of the total area due to unavoidable, no matter how fine roughness. This unnecessarily increases the heat resistance and makes cooling more difficult.
In order to avoid this disadvantage, it is proposed according to the invention that grooves be provided at the connection point between the cooling device and the housing containing the semiconductor element on the one hand and the housing and the semiconductor element on the other hand, with which the named parts interlock. Examples of the subject matter of the invention are shown in FIGS.
In FIG. 1, the upper part is the elevation and the lower part is the plan of a semiconductor power converter element. For example, the transition from the housing to the Kühleinrich device is shown. Both are only hinted at.
The Ge housing 1 has elevations 2 which engage in grooves 3 of the cooling device 4. It is thereby achieved that, on the one hand, the total area is increased by the groove shape and, on the other hand, the contact is not only present in individual points but in every groove, so that a significant reduction in the heat transfer resistance can be achieved.
As the plan view in FIG. 1 shows, the grooves can be parallel to one another or, as FIG. 2 shows, they can also be arranged in a circle, which enables production on a lathe.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1401264A CH422165A (en) | 1964-10-29 | 1964-10-29 | Semiconductor converter elements which are used in a cooling device |
FR36367A FR1452410A (en) | 1964-10-29 | 1965-10-27 | solid-state solid-state converter elements which are placed in a cooling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1401264A CH422165A (en) | 1964-10-29 | 1964-10-29 | Semiconductor converter elements which are used in a cooling device |
Publications (1)
Publication Number | Publication Date |
---|---|
CH422165A true CH422165A (en) | 1966-10-15 |
Family
ID=4397195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1401264A CH422165A (en) | 1964-10-29 | 1964-10-29 | Semiconductor converter elements which are used in a cooling device |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH422165A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4748483A (en) * | 1979-07-03 | 1988-05-31 | Higratherm Electric Gmbh | Mechanical pressure Schottky contact array |
-
1964
- 1964-10-29 CH CH1401264A patent/CH422165A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4748483A (en) * | 1979-07-03 | 1988-05-31 | Higratherm Electric Gmbh | Mechanical pressure Schottky contact array |
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