DE102004012231A1 - Metal-ceramic substrate for electronics switches or modules comprises a ceramic layer containing aluminum oxide, zirconium oxide and yttrium oxide with a copper foil or layer formed on both sides - Google Patents
Metal-ceramic substrate for electronics switches or modules comprises a ceramic layer containing aluminum oxide, zirconium oxide and yttrium oxide with a copper foil or layer formed on both sides Download PDFInfo
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- DE102004012231A1 DE102004012231A1 DE102004012231A DE102004012231A DE102004012231A1 DE 102004012231 A1 DE102004012231 A1 DE 102004012231A1 DE 102004012231 A DE102004012231 A DE 102004012231A DE 102004012231 A DE102004012231 A DE 102004012231A DE 102004012231 A1 DE102004012231 A1 DE 102004012231A1
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- ceramic
- ceramic layer
- substrate
- metallization
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- 239000000919 ceramic Substances 0.000 title claims abstract description 95
- 239000000758 substrate Substances 0.000 title claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000011889 copper foil Substances 0.000 title abstract description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 title 1
- 229910001928 zirconium oxide Inorganic materials 0.000 title 1
- 238000001465 metallisation Methods 0.000 claims description 40
- 229910010293 ceramic material Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/117—Composites
- C04B35/119—Composites with zirconium oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/021—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles in a direct manner, e.g. direct copper bonding [DCB]
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
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- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
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- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3735—Laminates or multilayers, e.g. direct bond copper ceramic substrates
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49866—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers characterised by the materials
- H01L23/49894—Materials of the insulating layers or coatings
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- H05K1/00—Printed circuits
- H05K1/02—Details
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- H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
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- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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Abstract
Description
Die Erfindung bezieht sich auf ein Substrat gemäß Oberbegriff Patentanspruch 1.The The invention relates to a substrate according to the preamble claim 1.
Ein
Metall-Keramik-Substrat dieser Art ist bekannt (
Nachteilig sind bei diesem bekannten Substrat u.a. die hohen Produktionskosten, die reduzierte Haftfestigkeit der Metallisierung auf der Keramikschicht sowie auch Unebenheiten an den Oberflächenseiten der Keramikschicht durch einen großen Schrumpfungsfaktor beim Sintern bzw. Brennen der Keramik, und zwar jeweils bedingt durch den hohen Anteil an ZrO2. Dieses macht es schwierig, große Formate und Mehrfachnutzen herzustellen.Disadvantages of this known substrate include the high production costs, the reduced adhesive strength of the metallization on the ceramic layer and also unevennesses on the surface sides of the ceramic layer due to a large shrinkage factor during sintering or firing of the ceramic, in each case due to the high proportion of ZrO 2 , This makes it difficult to produce large formats and multiple uses.
Aufgabe der Erfindung ist es, ein Metall-Keramik-Substrat aufzuzeigen, die diese Nachteile vermeidet. Zur Lösung dieser Aufgabe ist ein Metall-Keramik-Substrat entsprechend dem Patentanspruch 1 ausgebildet.task The invention is to show a metal-ceramic substrate, the avoids these disadvantages. To the solution This object is a metal-ceramic substrate according to the Claim 1 is formed.
Der Erfindung liegt die überraschende Erkenntnis zugrunde, dass trotz eines relativ niedrigen Anteils an ZrO2 eine hohe thermische Leitfähigkeit > 20 W/mK für das Keramikmaterial der Keramikschicht erreichbar ist und auch die mechanische Festigkeit ausreichend hoch ist, und zwar bei deutlich verbesserter Haftfestigkeit der Metallisierungen > als 40 N/cm, vielfach sogar größer als 50 N/cm.The invention is based on the surprising finding that, despite a relatively low proportion of ZrO 2, a high thermal conductivity> 20 W / mK can be achieved for the ceramic material of the ceramic layer and also the mechanical strength is sufficiently high, namely with significantly improved adhesion of the metallizations > than 40 N / cm, often even greater than 50 N / cm.
Die Biege-Bruch-Festigkeit der Keramik ist bei dem erfindungsgemäßen Substrat > 500 MPa. Die Biege-Bruch-Festigkeit des Substrates insgesamt liegt bei der Erfindung bei beidseitiger Metallisierung deutlich über 600 MPa.The Bend-fracture strength of the ceramic is> 500 MPa in the substrate according to the invention. The bending-fracture-strength the total substrate is in the invention in bilateral Metallization clearly over 600 MPa.
Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche. Die Erfindung wird im Folgenden anhand der Figuren an Ausführungsbeispielen näher erläutert. Es zeigen:further developments The invention are the subject of the dependent claims. The invention is in Explained below with reference to the figures of exemplary embodiments. It demonstrate:
Das
in den Figuren allgemein mit
Üblicherweise
wird das Substrat
Das
Substrat
Die
Keramik der Keramikschicht
ZrO2 maximal 9 Gewichtsprozent, bevorzugt im
Bereich zwischen etwa 2 und 9 Gewichtsprozent,
Al2O3 im Bereich zwischen etwa 91–98 Gewichtsprozent,
Y2O3 maximal 1 Gewichtsprozent,
vorzugsweise im Bereich zwischen 0,04 und 1 Gewichtsprozent,
und
zwar jeweils bezogen auf das Gesamtgewicht des Keramikmaterials
der Keramikschicht
ZrO 2 at most 9 percent by weight, preferably in the range between about 2 and 9 percent by weight,
Al 2 O 3 ranging between about 91-98 weight percent,
Y 2 O 3 at most 1 percent by weight, preferably in the range between 0.04 and 1 percent by weight,
in each case based on the total weight of the ceramic material of the ceramic layer
Hierbei
ist es auch möglich,
dass der Anteil an Y2O3 ganz
oder teilweise durch CaO ersetzt ist. Mit dieser Zusammensetzung
des Materials der Keramikschicht
Messungen
haben ergeben, dass die Haftfestigkeit (Peelfestigkeit) der mit
dem DCB-Verfahren (Direct
Copper Bonding – US-PS
37 44 120 oder DE-PS 23 19 854) auf die Keramikschicht
Die
Haftfestigkeit der Metallisierungen
Von
Bedeutung für
die Qualität
des Substrates
Die
Messung der Temperaturwechselfestigkeit erfolgt unter extremen Bedingungen,
die in dieser Form in der Praxis zwar nicht auftreten, dennoch aber
ein zuverlässiges
und aussagekrätiges
Messergebnis liefern. Für
die Messung der Temperaturwechselfestigkeit wird eine Einrichtung
verwendet, die in der
In
jeder Kammer
Für die Ermittlung,
ob eine Rissbildung bereits eingetreten ist oder nicht, eignet sich
die sogenannte Grindo-Sonic-Methode, die üblicherweise zur Bestimmung
des E-Moduls verwendet
wird. Bei dieser Methode wird jeweils die Eigenfrequenz des Substrates
Die
Von
besonderer Bedeutung für
die Qualität des
Substrates
Die
Von
ganz entscheidender Bedeutung ist aber die Wärmeleitfähigkeit der Keramikschicht
Von
entscheidender Bedeutung ist insbesondere auch bei den geringen
Dicken der Keramikschicht
Die
Die Erfindung wurde voranstehend an einem Ausführungsbeispiel beschrieben. Es versteht sich, dass Abwandlungen möglich sind, ohne das dadurch der der Erfindung zugrunde liegende Erfindungsgedanke verlassen wird.The The invention has been described above with reference to an exemplary embodiment. It is understood that modifications are possible without this The invention underlying the invention is abandoned.
- 11
- Kupfer-Keramik-SubstratCopper-ceramic substrate
- 1a1a
- Mess- oder Prüfsubstratmeasurement or test substrate
- 2, 2a2, 2a
- Keramikschichtceramic layer
- 3, 3a3, 3a
- Metallisierungmetallization
- 3a.13a.1
-
verbreiteter
Abschnitt der Metallisierung
3a common section of the metallization3a - 3a.23a.2
-
streifenförmiger Abschnitt
der Metallisierung
3a strip-shaped section of the metallization3a - 44
- Metallisierungmetallization
- 55
- SollbruchlinieLine of weakness
- 66
- Unterlagedocument
- 77
- Bruchliniebreakline
- 7.1, 7.27.1 7.2
- Teilbruchpartial break
- 8, 98th, 9
- Behandlungsraumtreatment room
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004012231A DE102004012231B4 (en) | 2004-03-09 | 2004-03-12 | Metal-ceramic substrate for electronics switches or modules comprises a ceramic layer containing aluminum oxide, zirconium oxide and yttrium oxide with a copper foil or layer formed on both sides |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011835.3 | 2004-03-09 | ||
DE102004011835 | 2004-03-09 | ||
DE102004012231A DE102004012231B4 (en) | 2004-03-09 | 2004-03-12 | Metal-ceramic substrate for electronics switches or modules comprises a ceramic layer containing aluminum oxide, zirconium oxide and yttrium oxide with a copper foil or layer formed on both sides |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004012231A1 true DE102004012231A1 (en) | 2005-09-29 |
DE102004012231B4 DE102004012231B4 (en) | 2006-03-23 |
Family
ID=34895196
Family Applications (1)
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---|---|---|---|
DE102004012231A Expired - Lifetime DE102004012231B4 (en) | 2004-03-09 | 2004-03-12 | Metal-ceramic substrate for electronics switches or modules comprises a ceramic layer containing aluminum oxide, zirconium oxide and yttrium oxide with a copper foil or layer formed on both sides |
Country Status (1)
Country | Link |
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DE (1) | DE102004012231B4 (en) |
Cited By (5)
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DE102012110322A1 (en) * | 2012-10-29 | 2014-04-30 | Curamik Electronics Gmbh | Metal-ceramic substrate and method for producing a metal-ceramic substrate |
US8980398B2 (en) | 2007-04-24 | 2015-03-17 | CeramTee GmbH | Component having a ceramic base with a metalized surface |
CN108698936A (en) * | 2016-02-26 | 2018-10-23 | 贺利氏德国有限两合公司 | Copper/ceramic complexes |
US10710936B2 (en) | 2014-08-28 | 2020-07-14 | Byd Company Limited | Ceramic substrate and its manufacturing method, power module |
WO2021012448A1 (en) | 2019-07-23 | 2021-01-28 | 南充三环电子有限公司 | Zirconia compounded alumina ceramic sintered body, preparation method therefor and use thereof |
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DE202016008286U1 (en) | 2016-02-26 | 2017-06-21 | Heraeus Deutschland GmbH & Co. KG | Copper-ceramic composite |
DE202016008287U1 (en) | 2016-02-26 | 2017-06-21 | Heraeus Deutschland GmbH & Co. KG | Copper-ceramic composite |
EP3210957B1 (en) | 2016-02-26 | 2019-01-02 | Heraeus Deutschland GmbH & Co. KG | Copper ceramic composite |
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HUE053549T2 (en) | 2016-02-26 | 2021-07-28 | Heraeus Deutschland Gmbh & Co Kg | Copper ceramic composite |
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DE202016008371U1 (en) | 2016-02-26 | 2017-09-11 | Heraeus Deutschland GmbH & Co. KG | Copper-ceramic composite |
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DE4444681A1 (en) * | 1994-11-26 | 1996-05-30 | Schulz Harder Juergen | Substrate used in mfr. of electrical integrated circuits |
US5675181A (en) * | 1995-01-19 | 1997-10-07 | Fuji Electric Co., Ltd. | Zirconia-added alumina substrate with direct bonding of copper |
-
2004
- 2004-03-12 DE DE102004012231A patent/DE102004012231B4/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4444681A1 (en) * | 1994-11-26 | 1996-05-30 | Schulz Harder Juergen | Substrate used in mfr. of electrical integrated circuits |
US5675181A (en) * | 1995-01-19 | 1997-10-07 | Fuji Electric Co., Ltd. | Zirconia-added alumina substrate with direct bonding of copper |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8980398B2 (en) | 2007-04-24 | 2015-03-17 | CeramTee GmbH | Component having a ceramic base with a metalized surface |
DE102012110322A1 (en) * | 2012-10-29 | 2014-04-30 | Curamik Electronics Gmbh | Metal-ceramic substrate and method for producing a metal-ceramic substrate |
DE102012110322B4 (en) * | 2012-10-29 | 2014-09-11 | Rogers Germany Gmbh | Metal-ceramic substrate and method for producing a metal-ceramic substrate |
EP2911994B1 (en) | 2012-10-29 | 2020-01-01 | Rogers Germany GmbH | Electric or electronic circuit or circuit module containing a metal-ceramic substrate in the shape of a circuit board and a method for producing the same |
US10710936B2 (en) | 2014-08-28 | 2020-07-14 | Byd Company Limited | Ceramic substrate and its manufacturing method, power module |
CN108698936A (en) * | 2016-02-26 | 2018-10-23 | 贺利氏德国有限两合公司 | Copper/ceramic complexes |
WO2021012448A1 (en) | 2019-07-23 | 2021-01-28 | 南充三环电子有限公司 | Zirconia compounded alumina ceramic sintered body, preparation method therefor and use thereof |
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