EP2054930A1 - Corps de refroidissement pour composants semi-conducteurs ou appareils similaires et son procédé de fabrication - Google Patents

Corps de refroidissement pour composants semi-conducteurs ou appareils similaires et son procédé de fabrication

Info

Publication number
EP2054930A1
EP2054930A1 EP07801566A EP07801566A EP2054930A1 EP 2054930 A1 EP2054930 A1 EP 2054930A1 EP 07801566 A EP07801566 A EP 07801566A EP 07801566 A EP07801566 A EP 07801566A EP 2054930 A1 EP2054930 A1 EP 2054930A1
Authority
EP
European Patent Office
Prior art keywords
base plate
rib
cooling
integrally formed
heat sink
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Withdrawn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
EP07801566A
Other languages
German (de)
English (en)
Inventor
Stephan Bock
Uwe Bock
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.)
3A Composites International AG
Original Assignee
Alcan Technology and Management Ltd
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 Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Publication of EP2054930A1 publication Critical patent/EP2054930A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W40/00—Arrangements for thermal protection or thermal control
    • H10W40/20—Arrangements for cooling
    • H10W40/22—Arrangements for cooling characterised by their shape, e.g. having conical or cylindrical projections
    • H10W40/226—Arrangements for cooling characterised by their shape, e.g. having conical or cylindrical projections characterised by projecting parts, e.g. fins to increase surface area
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W40/00—Arrangements for thermal protection or thermal control
    • H10W40/01—Manufacture or treatment
    • H10W40/03—Manufacture or treatment of arrangements for cooling
    • H10W40/037—Assembling together parts thereof

Definitions

  • Heatsink for semiconductor devices od. Like. Apparatus and method for its production
  • the invention relates to a heat sink for semiconductor devices od.
  • Devices in particular a Hochlei- ststühle unit of extruded aluminum or other light metal - with spaced from one another connected to a base plate and thereof - preferably parallel to each other - towering cooling fins, each as a hollow profile are formed with two mutually parallel rib walls and these connecting transverse webs; the cooling fins are od in use grooves.
  • Recesses of the base plate firmly.
  • the insert grooves are each bounded by ledge projections of the base plate.
  • the invention covers a method for producing this heat sink.
  • Such a heat sink the document to DE 296 02 367 Ul.
  • the cooling fin rests firmly in a retaining or insertion groove of the base plate, and in addition to each cooling groove containing insert groove of the heat sink is arranged in the base plate a cross-sectionally funnel-shaped insertion groove other shape and dimension, which receives an opposite cooling fin of a second heat sink.
  • the cooling fins of the first heat sink engage.
  • the free end of the cooling fin is formed by a pair on both sides of a gap extending end webs. This rib shape is possible only at a small leg distance.
  • the resulting small rib spacing limits the use of such heat sinks to forced convection; for the field of free Convection requires a larger rib spacing.
  • a relatively high dimensional deviation of the base spacing which would lead to considerable problems during insertion into the retaining grooves of the base plate, would be unavoidable in terms of pressing technique.
  • hollow fin heatsinks have increased air inlet and outlet flow resistance.
  • each rib wall of the cooling rib in each case has a free plug-in end which is to be introduced into an insertion groove of the base plate and held there; the insertion grooves limiting lateral ledge projections project advantageously from the surface of the base plate and are of different heights.
  • the two mating ends of the cooling fin are connected by a molded crosspiece whose distance from the foot edge of the mating end is shorter than the distance of the head surface associated with it Leistenanformung the base plate from the deepest of the insert groove.
  • a molded crosspiece whose distance from the foot edge of the mating end is shorter than the distance of the head surface associated with it Leistenanformung the base plate from the deepest of the insert groove.
  • the distance of the transverse web to the foot edge of the mating end is shorter than the height of this mating end, so that by axial pressure allows separation of the crosspiece of the mating ends becomes;
  • the crosspiece is provided on both sides at the transition to the mating end of the cooling fin with a predetermined breaking point, which is preferably formed by at least one of the cross section of the crosspiece narrowing notch.
  • a puck-flat of the socket strip should be connected to the solder breaker.
  • the rib walls of the cooling rib are inserted with their respective free plug ends in each one of the insertion grooves of the base plate until the integrally formed transverse web sits two lateral grooved moldings of the base plate, after which the transverse web is crushed by pressure on the cooling rib at both ends on the support area ,
  • the cooling fins are pressed after removing that crosspiece to the stop at the lowest of the insert groove in this.
  • the plug longitudinal notches are formed, which define a tooth profile forming longitudinal strips, so that the side walls of the insert groove are able to intervene in this holding in a molding process.
  • the invention thus consists, inter alia, in that the transverse web formed in the cooling rib in the immediate base region is provided on the upper side and lower side, preferably with generally triangular notches.
  • the crosspiece - as described - is supported on the mutually adjacent ingot formations. Combined with the joining process, the crosspiece is broken out by pressure on the cooling ribs.
  • the two rib or flank walls of the individual cooling rib are provided with an inclined front edge at least at one end.
  • the two rib or flank walls in each case at both ends with an inclined front edge.
  • the front edge should enclose an angle of preferably about 60 ° with the surface of the base plate.
  • the inclined front edge emanating from a surface perpendicular to the base plate head portion, which is associated with the head portion of the cooling fin.
  • Fig. 1 the front view of a
  • High performance cooling unit according to the prior art of two heat sinks with cooling fins in a housing
  • Fig. 2 a single fin of the
  • Fig. 3, 6 respectively the front view of a portion of a heat sink according to the invention.
  • Fig. 5 a partial side view of the
  • Fig. 7 the side view of another
  • FIG. 8 shows a detail enlarged relative to FIGS. 3, 6 during the assembly of the heat sink; 9 shows a section through an enlarged region of FIG. 8 along the arrow IX thereof; FIG.
  • Fig. 10 the detail of Figure 9 at the end of the installation process.
  • FIG. 11 shows a detail of FIG. 8 after the assembly of the heat sink.
  • the latter form with the base plate 14 a - extruded - rectangular gutter.
  • the height h of this housing 12 measures 47.5 mm in the example chosen.
  • the base plate 14 are open to the housing interior 18 open - by bottom ribs 20 separate from each other - insert grooves 22, 24 formed; the latter are alternately of rectangular and funnel-like groove cross-section, wherein the deepest 23 of the rectangular insertion groove 22 extends at a distance e from here 2 mm above the lowest 25 of the funnel-like insertion groove 24.
  • each a hollow or cooling fin 30 of length z of about 76.5 mm is used with a groove cross-section filling the coupling base 32 of the width k of here 5.5 mm; from the side surfaces of the better fit ' half longitudinal strips 34 are formed out sawtooth-like cross-section.
  • From the coupling base 32 are two parallel to the central axis M of the cooling fin 30 rib walls 36, which are connected at clear intervals q by six transverse webs 38; these limit profile or flow channels 40.
  • the opposite parallel strips 42 are each arranged offset, as exemplified Fig. 2 reproduces.
  • the hollow or cooling rib 30 ends with a pair of parallel end webs 44, which in turn offer a plurality of parallel longitudinal strips 34 on the outer surfaces.
  • the end webs 44 define an end widening gap 46 and their outer surfaces define at the rounded tips 45 a transverse distance s of slightly more than 4 mm.
  • the base plate 14 and the cooling fins 30 are manufactured separately, in each case by way of extrusion as light metal profiles. Then the - here five - cooling fins 30 in the insertion grooves 32 of the base plate 14 are fixed to each other in a form-fitting manner.
  • a one-piece heat sink 10 is created, which still contains those insert grooves 24 funnel-shaped cross section between the individual pressed-in cooling fins 30.
  • a head groove 49 is provided at the head end 48 a of the other flank wall 16, a spring 50 with a serrated side surface.
  • Two similar embodied heat sink 10 of the type described are interleaved by turning the one heat sink 10 into each other to the high-performance cooling unit.
  • the pairs of end webs 44 engage at the free end of the cooling fins 30 in the funnel-shaped insertion grooves 24 of the respective other heat sink 10 a.
  • both parts are braced due to the spring action of the end webs 44 during assembly by means of a - applied to the base plates 14 of both heat sink 10 - compressive force.
  • the springs 50 of the flank walls 16 engage in the head grooves 49 of the associated other flank walls 16.
  • molded from light metal heat sink 60 protrude from a base plate 62 of thickness ID 1 at transverse intervals S 1 fins 70 a height h x , each of which is designed as a U-profile of an inner width c.
  • the height Ji 1 is approximately six times longer than the measure of the width c, which in turn corresponds approximately to the transverse distance S 1 .
  • First strip 72 parallel rib or profile walls 74 of the thickness of n spans about half the height h x a on both sides integrally formed transverse strip 73, which the inner space of the cooling fin 70 into two interior portions 71, 71 a shares.
  • an integrally formed on the inner surface base strip 77 goes out, and the width k x of the foot edge 76 corresponds to about twice the wall thickness n of the profile wall 74th
  • the outer last molding 64 is of smaller cross-section than the inner ingot molding 66, in addition to a channel indentation 65 of part-circular cross-section is introduced into it at the corner of the transition to the groove deepest here forming the plate surface 63.
  • a is cross-sectional Lich upwardly widening indentation 69, whose deepest intended here as well from the plate surface 63 as the deepest an outer between two adjacent Leistenanformungen extends between the two inner Leistenanformept 66 for a cooling rib 70 64 extending Rinneneinformung 69 a whose cross-section thus extends between two cooling fins 70.
  • the profile or flank walls 74 are provided at one end with vertical edges 78 rising at right angles from the base plate 62; on the front - ie the left end, the Fig. 5 - the front edge 79 is inclined to the base plate 62 at an angle t of about 60 ° inwardly, wherein a head portion 79 a small height h 2 is designed as a vertical edge.
  • the heat sink 60 a of FIGS. 6, 7 differs from the heat sink 60 discussed above in that the former is equipped at both ends with an inclined at that angle t front edge 79 , which merges just below the ridge strip 72 in the designed as a vertical edge head portion 79 a ,
  • the total length g of the base plate 62 becomes clear.
  • the upper ends of the mutually opposite base strips 77 of the two plug ends 80 of a heat sink 60 or 60 a are firmly connected by a transverse rib 86 integrally formed on both sides.
  • Their cross-section tapers at the transition to plug-in end 80 thanks to notches 87 formed in cross-section to form a predetermined breaking strip 88 as a predetermined breaking point.
  • the distance i 3 of the head surface 67 a of the nose rib 67 from the deepest 63 a of the insert groove 68 - ie the height i 3 of the inner groin 66 - is significantly greater than the axial distance V 1 of the lower surface of the crosspiece 86 of the foot edge 76, so that upon further thrust in the printing direction x and decreasing distance q x between the root edge 76 of the flank wall 74 and the lowest 63 a of the insert groove 68 of the increasing pressure leads to a break of the predetermined breaking strip 88 and two fractured surfaces 90.
  • the crosspiece 86 remains on the nose ribs 67 lie and the foot edge 76 of the male end 80 is shown in FIG. 10 the lowest 63 a of the Eins- groove 68 supplied, so the surface 63 of the base plate 62nd
  • flank pressure P on the two strip moldings 64, 66 a forming connection of the inner side surfaces 58 and the longitudinal strips 84 of the male end 80 take place.

Landscapes

  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

Dans le corps de refroidissement selon l'invention pour composants semi-conducteurs ou appareils similaires, en particulier une unité de refroidissement à haute puissance en aluminium extrudé ou un autre métal léger, avec des nervures de refroidissement (70) espacée l'une de l'autre et étant associées à et sortant d'une plaque de base (62) qui servent respectivement de profil creux avec deux parois de nervures (74) parallèles l'une à l'autres et des traverses (72, 73) les reliant et qui sont immobilisées dans des rainures d'empiècement ou évidements similaires (68) de la plaque de base, chaque paroi de nervure comporte une extrémité d'insertion (80) libre qui peut être insérée dans une rainure d'empiècement (68) de la plaque de base (62) ; les moulures de charge (64, 66) délimitant la rainure d'empiècement (68) s'élèvent depuis la surface (63) de la plaque de base (62) et sont de hauteurs (i3) différentes. Les deux extrémités d'insertion (80) de chaque nervure de refroidissement sont connectées par des traverses (86) moulurées dont la distance (Vl) au bord inférieur de l'extrémité d'insertion (80) est inférieure à la distance (i3) de la surface supérieure d'une moulure de charge (66) de la plaque de base (62) qui lui est associée de la plus profonde (63a) des rainures d'empiècement (68).
EP07801566A 2006-08-21 2007-08-09 Corps de refroidissement pour composants semi-conducteurs ou appareils similaires et son procédé de fabrication Withdrawn EP2054930A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006038980A DE102006038980B4 (de) 2006-08-21 2006-08-21 Kühlkörper für Halbleiterbauelemente sowie Verfahren zu seiner Herstellung
PCT/EP2007/007032 WO2008022712A1 (fr) 2006-08-21 2007-08-09 Corps de refroidissement pour composants semi-conducteurs ou appareils similaires et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP2054930A1 true EP2054930A1 (fr) 2009-05-06

Family

ID=38666937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801566A Withdrawn EP2054930A1 (fr) 2006-08-21 2007-08-09 Corps de refroidissement pour composants semi-conducteurs ou appareils similaires et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP2054930A1 (fr)
DE (1) DE102006038980B4 (fr)
WO (1) WO2008022712A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102230604B (zh) * 2011-07-18 2014-07-30 安徽海威半导体照明有限公司 一种led灯模块式散热器
CN104427827A (zh) * 2013-08-29 2015-03-18 台达电子工业股份有限公司 组合式铝挤型散热器
TW201509286A (zh) * 2013-08-29 2015-03-01 台達電子工業股份有限公司 組合式鋁擠型散熱器
WO2016096042A1 (fr) * 2014-12-19 2016-06-23 Arcelik Anonim Sirketi Ailette de refroidissement individuelle et moteur électrique la comportant
EP3624184A1 (fr) * 2018-09-12 2020-03-18 Siemens Aktiengesellschaft Procédé de fabrication d'une unité de module de puissance, unité de module de puissance, bloc d'alimentation et convertisseur de fréquence
EP3872845A1 (fr) 2020-02-28 2021-09-01 Siemens Aktiengesellschaft Procédé de fabrication d'une unité de module de puissance
CN116249335B (zh) * 2023-05-11 2023-08-04 天津锐新昌科技股份有限公司 一种铝合金半插片散热器及其加工工艺

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DE3518310A1 (de) * 1985-05-22 1986-11-27 Aluminium-Walzwerke Singen Gmbh, 7700 Singen Kuehlkoerper fuer halbleiterbauelemente und verfahren zu seiner herstellung
ES2076503T3 (es) * 1990-10-24 1995-11-01 Alusuisse Lonza Services Ag Refrigerador para componentes semiconductores.
DE9409517U1 (de) * 1994-06-13 1994-07-28 Siemens AG, 80333 München Kühlkörper
DE29602367U1 (de) * 1995-03-24 1996-05-15 Alusuisse-Lonza Services AG, Neuhausen am Rheinfall Kühlkörper für Halbleiterbauelemente o.dgl.
US5819407A (en) * 1995-04-19 1998-10-13 Tousui, Ltd. Method of joining together a pair of members each having a high thermal conductivity
EP0744241B1 (fr) * 1995-05-16 2001-11-14 TOUSUI, Ltd. Procédé pour joindre deux pièces, chacune ayant une haute conductivité thermique
JPH09192758A (ja) * 1996-01-16 1997-07-29 Tousui Kikaku:Kk 押し出し材同志の結合方法及びヒートシンク
JPH10277671A (ja) * 1997-04-09 1998-10-20 Tosui Kikaku:Kk 押し出し材同志の結合方法及結合構造
DE20309856U1 (de) * 2003-06-24 2004-10-28 Autokühler GmbH & Co. KG Kühlkörper für Bauelemente

Non-Patent Citations (1)

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Title
See references of WO2008022712A1 *

Also Published As

Publication number Publication date
DE102006038980B4 (de) 2009-02-19
WO2008022712A1 (fr) 2008-02-28
DE102006038980A1 (de) 2008-03-13

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