EP4168375A1 - Verfahren zur herstellung eines metall-keramik-substrats und metall-keramik-substrat hergestellt mit einem solchen verfahren - Google Patents
Verfahren zur herstellung eines metall-keramik-substrats und metall-keramik-substrat hergestellt mit einem solchen verfahrenInfo
- Publication number
- EP4168375A1 EP4168375A1 EP21754709.0A EP21754709A EP4168375A1 EP 4168375 A1 EP4168375 A1 EP 4168375A1 EP 21754709 A EP21754709 A EP 21754709A EP 4168375 A1 EP4168375 A1 EP 4168375A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal layer
- metal
- ceramic element
- ceramic
- sections
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 70
- 239000000758 substrate Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 230
- 239000002184 metal Substances 0.000 claims abstract description 230
- 238000003754 machining Methods 0.000 claims abstract description 10
- 238000001513 hot isostatic pressing Methods 0.000 claims abstract description 9
- 238000005476 soldering Methods 0.000 claims abstract description 9
- 238000005530 etching Methods 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 13
- 238000009760 electrical discharge machining Methods 0.000 claims description 2
- 238000002848 electrochemical method Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 abstract 2
- 238000001465 metallisation Methods 0.000 description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 238000002955 isolation Methods 0.000 description 13
- 238000009413 insulation Methods 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 239000011889 copper foil Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229910016570 AlCu Inorganic materials 0.000 description 1
- 102100033565 Biogenesis of lysosome-related organelles complex 1 subunit 6 Human genes 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910018565 CuAl Inorganic materials 0.000 description 1
- 229910016525 CuMo Inorganic materials 0.000 description 1
- 201000005400 Hermansky-Pudlak syndrome 9 Diseases 0.000 description 1
- 101000872147 Homo sapiens Biogenesis of lysosome-related organelles complex 1 subunit 6 Proteins 0.000 description 1
- 241000530268 Lycaena heteronea Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
- C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/021—Isostatic pressure welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
- C04B35/6455—Hot isostatic pressing
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
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- 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
- H01L23/373—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials, e.g. fibre reinforced
- B23K2103/166—Multilayered materials
- B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/52—Ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/34—Oxidic
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/34—Oxidic
- C04B2237/343—Alumina or aluminates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/34—Oxidic
- C04B2237/345—Refractory metal oxides
- C04B2237/348—Zirconia, hafnia, zirconates or hafnates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/36—Non-oxidic
- C04B2237/365—Silicon carbide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/36—Non-oxidic
- C04B2237/366—Aluminium nitride
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- C—CHEMISTRY; METALLURGY
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
- C04B2237/36—Non-oxidic
- C04B2237/368—Silicon nitride
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/401—Cermets
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/402—Aluminium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/403—Refractory metals
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/407—Copper
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/64—Forming laminates or joined articles comprising grooves or cuts
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
- C04B2237/706—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the metallic layers or articles
Definitions
- the present invention relates to a method for producing a metal-ceramic substrate and a metal-ceramic substrate produced using such a method.
- Carrier substrates for electrical components are well known, for example as printed circuit boards or circuit boards from the prior art, for example from DE 102013 104739 A1, DE 19927046 B4 and DE 102009033029 A1.
- connection surfaces for electrical components and conductor tracks are arranged on one component side of the metal-ceramic substrate, with the electrical components and conductor tracks being able to be interconnected to form electrical circuits.
- Essential components of the metal-ceramic substrates are an insulation layer, which is preferably made of a ceramic material, and a metal layer or component metallization connected to the insulation layer. Because of their comparatively high insulation strength, ceramic insulation layers have proven to be particularly advantageous in power electronics. By structuring the metal layer, conductor tracks and/or connection areas for the electrical components can then be implemented.
- thermomechanical stresses can be induced or caused, which can lead to bending or even damage to the carrier substrate.
- a method of manufacturing a metal-ceramic substrate comprising:
- a mechanical tool and/or a laser to define the geometry of the side surfaces at least in sections.
- a corresponding course of the side faces is realized in order, for example, to improve the thermal shock resistance of the connection of the at least one metal layer to the ceramic element.
- This proves to be particularly advantageous in cases in which structuring or the formation of the side faces does not take place as part of a conventional etching process in which a curved or sloping etched edge profile is automatically generated at the border area between the at least one metal layer and the ceramic element , which has an advantageous effect on the thermal shock resistance of the bond between the at least one metal layer and the ceramic layer.
- the metal-ceramic substrates produced are circuit boards in which the ceramic element is used as insulation between two metal sections and serves as the at least one metal layer.
- the individual sections of the at least one metal layer form conductor tracks and/or connections to which electrical or electronic components that are carried by the ceramic elements or by the printed circuit board can be connected.
- the formation of the side surfaces, in particular as part of a structuring separates the individual metal sections of the at least one metal layer from one another, so that so-called insulation trenches are realized between the individual metal sections, as a result of which the individual metal sections are electrically insulated from one another.
- the profile of the side surface is fixed or determined by a combination of an etching process and processing with a mechanical tool and/or laser.
- a rear side metallization is provided on the opposite side of the at least one metal layer of the ceramic element.
- the rear-side metallization is preferably provided to counteract sagging of the metal-ceramic substrate, which would otherwise be expected due to the different thermal expansion coefficients.
- the rear side metallization has a correspondingly large thickness to form a sufficient heat capacity.
- the increased thickness of at least one metal layer proves to be particularly advantageous for increasing the heat capacity, since this can already cause effective heat spreading on the component side.
- a thicker at least one metal layer and/or rear-side metallization also proves to be advantageous because it increases the thermal capacity, as a result of which better cooling is possible and at the same time the mechanical stability is increased. This allows for example an omission of a base plate.
- the at least one metal layer is preferably processed before and/or after the connection with the ceramic element by means of a mechanical tool, preferably with different tools, as a result of which a large number of different geometric shapes can be realized.
- processing is carried out by means of the mechanical tool and/or by means of the laser light before the at least one metal layer is connected to the ceramic element and after the connection, the metal layer on the opposite side is cut with the same or another mechanical tool, with laser light and/or or treated with an etchant to remove metal locally.
- the structuring preferably takes place in this way.
- the processing of the metal layer on the opposite sides preferably takes place congruently along the stacking direction perpendicular to the main plane of extension.
- Materials for the at least one metal layer or the rear-side metallization in the metal-ceramic substrate are copper, aluminum, molybdenum and/or their alloys, and laminates such as CuW, CuMo, CuAl, AlCu and/or CuCu conceivable, in particular a copper sandwich structure with a first copper layer and a second copper layer, wherein a grain size in the first copper layer differs from the grain size in a second copper layer.
- the primary metal layer in particular as a component metallization, is surface-modified.
- sealing with a precious metal, in particular silver and/or gold, or ENIG (“electroless nickel immersion gold”), nickel or edge casting on the at least one metal layer to suppress crack formation or widening is conceivable as a surface modification.
- Zr0 2 HPS25
- SiC SiC
- BeO MgO
- high-density MgO > 90% of theoretical density
- TSZ tetragonal stabilized zirconium oxide
- ZTA zirconium oxide
- the ceramic element it is also conceivable for the ceramic element to be designed as a composite or hybrid ceramic, in which several ceramic layers, which differ in terms of their material composition, are arranged one on top of the other and joined together to form an insulating layer to combine various desired properties.
- a metallic intermediate layer is arranged between two ceramic layers, which is preferably thicker than 1.5 mm and/or thicker than the two ceramic layers in total.
- a ceramic that is as thermally conductive as possible is preferably used for the lowest possible thermal resistance.
- DCB method Direct Copper Bond Technology
- DAB method Direct Aluminum Bond Technology
- an active soldering process e.g. B. for connecting metal layers or metal foils, in particular copper layers or copper foils with ceramic material
- a method is to be understood, which is also used specifically for the production of metal-ceramic substrates, at a temperature between approx. 600-1000° C a connection between a metal foil, such as copper foil, and a ceramic substrate, such as aluminum nitride ceramic, produced un ter using a hard solder, which in addition to a Schokom component such as copper, silver and / or gold also contains an active metal.
- This active metal which for example contains at least one element from the group Hf, Ti, Zr,
- connection between the solder and the ceramic by chemical reaction, while the connection between the solder and the metal is a metallic braze joint.
- connection between the solder and the metal is a metallic braze joint.
- a thick layer process is also conceivable for connection.
- Hot isostatic pressing is known, for example, from EP 3080055 B1, the content of which with regard to hot isostatic pressing is hereby explicitly referred to.
- the at least one metal layer has a thickness running perpendicularly to the main extension plane, which is greater than 1 mm, preferably greater than 1.3 mm and particularly preferably between 1.5 and 3 mm.
- the use of a mechanical tool or laser light for separating individual sections in at least one metal layer has proven particularly advantageous for such metal-ceramic substrates with such large thicknesses, since this implements comparatively narrow isolation trenches, resulting in a pattern that is as dense as possible can be implemented on cableways and connections. Otherwise, an aspect ratio of less than 1 would be realized by a corresponding etching process, with the aspect ratio defining a ratio of depth to width.
- the thickness of the at least one metal layer above 1 mm a comparatively large distance between the two metal sections that are electrically insulated from one another in the at least one metal layer would be caused.
- the recess between two sections of the at least one metal layer has an aspect ratio that is greater than 1, preferably greater than 1.5 and particularly preferably greater than 2.
- the machining with the mechanical tool and/or the laser light is carried out before the ceramic element is connected to the at least one metal layer.
- the remaining metalization (preferably in the form of a web) that connects the individual metal sections (in particular on the side or on the surface side of the at least one metal layer that faces away from the ceramic element) can then be removed in order to ensure complete insulation between to ensure two adjacent portions of the at least egg nen metal layer.
- the mechanical tool is an embossing and/or punching device and/or comprises a milling or saw blade.
- the light used can be, for example, continuously emitted or pulsed light. It is preferably ultra-short-pulse laser light, with light pulses whose pulse length or pulse durations are shorter than one nanosecond.
- the geometry of the side surface is preferably determined by guiding the tool. For example, a specific course is let into the side surface or caused in it by a targeted lifting movement together with a lateral movement of the mechanical tool.
- the movement of a tip of the milling tool can determine the curved course.
- the geometry of the side face changes along the circumference of the metal layer.
- a geometry that changes in sections and along the direction of rotation around the outermost edge of the at least one metal layer can be set.
- the geometry can, for example, with respect to a Change the curvature of a curved course or, for example, the geometry type changes, for example from curved side surfaces to sloping or stepped side surfaces.
- the processing is carried out in such a way that a web connecting at least two sections of the at least one metal layer is realized.
- the web is in particular dimensioned in such a way that it allows, for example, simple and dimensionally stable handling or simple transport of the at least one metal layer and thus allows simple arrangement from the ceramic element.
- the web is not completely removed after the connection of the at least one metal layer to the ceramic element, but rather sections of the web are provided as a connection surface. In other words, the ridge is only partially removed, i. H. an overhanging section of the web is left and thus provided in order to use it, if necessary, to connect to another metal section and/or to an electrical component and/or an external control source.
- the mechanical tool comprises a milling tool, for example a milling head, and a saw blade and/or a punched or embossed part, the shape of which determines the geometry of the side surface.
- a milling tool for example a milling head
- a saw blade and/or a punched or embossed part the shape of which determines the geometry of the side surface.
- the manufactured side surface at least in sections, inclined and / or bent and / or curved and / or runs in stages.
- the optimized geometry for the side surface can be set for the respective application, so that the metal-ceramic substrate produced has sufficient thermal shock resistance to guarantee a desired, comparatively long service life for the metal-ceramic substrate.
- a plurality of different mechanical tools As a result, further subtleties in the geometry can be implemented, in particular in a flexible manner. For example, different milling or embossing tools with different outer contours are used in order to realize different geometries or a specific course on the side surface.
- the at least one metal layer is preferably divided into a plurality of isolated metal sections and the geometry of the side surface of the isolated metal sections is then defined.
- the at least one metal layer is first electrically insulated from one another by the embedding of insulation trenches.
- the side surfaces running, for example, essentially perpendicularly to the main extension plane are then brought into the desired geometric shape by mechanical processing and/or laser light.
- the side surface and its geometry can be defined at the same time as the metal sections that are insulated from one another are created. This speeds up the process because no separate work steps are required.
- the processing of the at least one metal layer for at least sectional definition of a geometry of a side surface that does not run parallel to the main plane of extension is carried out largely by means of laser light. “Usually” is to be understood as meaning that more than 50%, preferably more than 75% and particularly preferably more than 85% of the time required to create the side surface is due to processing using laser light.
- Another object of the present invention is a method for producing a metal-ceramic substrate, comprising:
- a further object of the present invention is a metal-ceramic substrate produced using the method according to the invention. All the properties and advantages described for the process can be transferred analogously to the metal-ceramic substrate and vice versa.
- the metal-ceramic Substrate Part of a power module and serves as a carrier for electrical or electronic components.
- Fig.1 a metal-ceramic substrate according to a first preferred
- FIG. 3 shows a method for producing a metal-ceramic substrate according to a first, a second and a third embodiment of the present invention
- FIG. 4 shows a method for producing a metal-ceramic substrate according to a fourth embodiment of the present invention
- FIG. 5 shows a method for producing a metal-ceramic substrate according to a fifth embodiment of the present invention
- 6 shows a method for producing a metal-ceramic substrate according to a sixth embodiment of the present inventions
- 7 shows a method of manufacturing a metal-ceramic substrate according to a seventh embodiment of the present invention
- FIG. 1 shows a schematic representation of a metal-ceramic substrate 1 according to a first preferred embodiment of the present invention.
- a metal-ceramic substrate 1 is preferably a carrier for electrical components. It is provided in particular that the metal-ceramic substrate 1 has a ceramic element 30 and at least one metal layer 10, the ceramic element 30 and the at least one metal layer 10 extending along a main extension plane HSE.
- the at least one metal layer 10 is bonded to the ceramic element 30, the at least one metal layer 10 and the ceramic element 30 being arranged one above the other in a stacking direction S running perpendicular to the main plane of extension HSE.
- the at least one metal layer 10 has a plurality of metal sections which, for example, are arranged next to one another, electrically insulated from one another, along a direction running parallel to the main extension plane HSE. Furthermore, it is particularly preferably provided that, seen in the stacking direction S, a rear-side metallization 20 is provided on the ceramic element 30 on the opposite side of the at least one metal layer 10 .
- the rear side metallization 20 is intended in particular to counteract bending that would otherwise occur during operation, which is caused by thermomechanical stresses, which in turn are the result of different expansion coefficients in the at least one metal layer 10 and the ceramic element 30 .
- the rear-side metallization 20 should provide sufficient thermal capacity, which is particularly desirable in order to be able to provide a corresponding buffer in overload situations.
- the increased thickness of the at least one metal layer 10 also proves to be particularly advantageous here for increasing the thermal capacity, since this can already cause effective heat spreading on the component side.
- a thicker at least one metal layer 10 and/or rear-side metallization 20 also proves to be advantageous because it increases the thermal capacity, as a result of which better cooling is possible and at the same time the mechanical stability is increased. This makes it possible, for example, to eliminate a floor panel.
- the at least one metal layer 10 has a thickness D1 perpendicular to the main extension plane HSE that is greater than 1 mm , is preferably greater than 1.3 mm or particularly preferably between 1.5 mm and 3 mm. With such a comparatively large thickness of the at least one metal layer 10, it is possible to bring about a comparatively high degree of symmetry between the at least one metal layer 10 and the rear-side metallization 20 and at the same time to ensure sufficient thermal capacity through the rear-side metallization 20.
- the mechanical tool 40 can be a milling tool and/or a stamping or embossing tool, with which the at least one metal layer 10 is structured. Provision is preferably made for the processing to be carried out using the mechanical tool 40 or the laser light in such a way that the at least one metal layer 10 can still be transported as a component. For this purpose, for example, there is no need to separate individual metal sections from one another by means of the mechanical tool 40 or the laser light, i. H. webs 14 are realized between the metal sections in the at least one metal layer 10, which are sufficiently thick so that they do not bend during transport or handling, for example by means of a robot.
- connection methods such as a direct connection method, hot isostatic pressing or an active soldering method, are used to connect the at least one metal layer 10 to the ceramic element 30 .
- web 14 which connects two adjacent metal sections of at least one metal layer 10 to one another, is partially or completely removed, for example by means of mechanical processing, using laser light or a chemical process or etching process.
- metal sections are provided on the ceramic element 10, which are arranged comparatively close to one another and thus provide comparatively narrow isolation trenches.
- connection lugs or connection areas can be used, for example, to connect different metal sections of the at least one metal layer 10 to one another and/or to realize a connection between components and/or to realize a connection to an external controller.
- FIG. 2 shows a metal-ceramic substrate 1 according to a second exemplary embodiment of the present invention.
- a geometry of a side surface 15 that does not run parallel to the main extension plane HSE is defined by machining using the mechanical tool 40 and/or the laser light. While in the prior art, in particular by etching, a course is produced in the side surface ⁇ 5, which in particular is curved or inclined to the main plane of extension HSE, this is not necessarily the case if a mechanical tool 40 or laser light is used.
- the inclined or curved side surface 15, in particular at the boundary between the at least one metal layer 10 and the ceramic element 30 for the thermal shock resistance has proven to be advantageous, it is advantageous for comparatively narrow insulation trenches, which cannot be realized by etching alone, to define the geometry of the side surface 15 by means of the mechanical tool 40 or with the laser light.
- sections of the side surface 15 in the at least one metal layer 10 in the lower third, ie in the third that faces the ceramic element 30, assume a curved or curved shape.
- FIG. 3 shows metal-ceramic substrates 1 according to a third (left), fourth (middle) and fifth (right) embodiment of the present invention.
- FIG. 3 shows the respective metal-ceramic substrates 1 schematically with mechanical tools 40, with which the at least one metal layer 10 is structured in order to realize corresponding recesses or insulating areas between sections of the at least one metal layer 10.
- the embodiment on the left shows a Milling head, which is essentially conical, whereby an essentially inclined geometry of the side surfaces 15 can be realized.
- the milling head is narrower than the recess between the adjacent metal sections of the at least one metal layer 10. In the middle of FIG curved course of the side surfaces 15 in the at least one metal layer 10 allows.
- a saw blade is provided for cutting or structuring between two metal sections of the at least one metal layer 10, i.e. for defining the geometry of the side surfaces 15, the outer contours of which are essentially wedge-shaped or trapezoidal in order to cut corresponding side surfaces 15 on the at least to design a metal layer 10 in such a way that they run obliquely, in particular not forming an angle of 90°, to the flap extension plane FISE.
- FIG. 4 shows a method for preparing a metal-ceramic substrate 1 according to a fourth preferred embodiment of the present invention. It is provided in particular that the at least one metal layer 10 is structured, for example by means of an embossing tool, and is combined with a further metal layer 10′, into which a structure has been embedded by means of an etching process.
- the structured at least one metal layer 10 is structured in such a way that its structuring is configured congruently with the structuring in the at least one additional metal layer 10', so that the at least one metal layer 10 and the at least one additional metal layer 10 can be connected
- Metal layer 10' leads to a pre-composite in which the geometries produced during the individual structuring conditions are combined in the pre-composite.
- the at least one metal layer 10 is more than 0.5 times, preferably more than 1.0 times and particularly preferably more than 2.0 times as thick as at least one further metal layer 10′.
- the at least one metal layer 10 comparatively large and (partial) side surfaces 15 that are deep, preferably straight and/or perpendicular to the main plane of extension, while the at least one additional metal layer 10' creates a curved or curved profile of the (partial) side surface 15, in particular on a manufactured State the ceramic element 30 facing portion.
- the at least one metal layer 10 and/or the at least one further metal layer 10' for the connection in the pre-assembly is heated in such a way that a connection is formed between them, whereby the at least one metal layer 10 and the at least a further metal layer 10' can be connected to form a one-piece, in particular monolithic, body which can be attached to a ceramic element 30 comparatively easily.
- the at least one metal layer 10 or the pre-composite is processed in such a way that a web 14 connecting the two adjacent metal sections is removed and/or or is structured in such a way that two adjacent metal sections are produced, between which a comparatively narrow isolation trench is arranged. It is conceivable, for example, for the etching process in the at least one additional metal layer 10' to produce the desired curved or bent side surface on the manufactured at least one metal layer 10 or on the preliminary composite.
- FIG. 5 a method for producing a metal-ceramic substrate 1 according to a fifth embodiment of the present invention is shown schematically.
- This exemplary embodiment provides for structuring in the at least one metal layer 10 on a side facing the ceramic element 30 in the manufactured state, for example by means of etching, and then for realizing a connection of the at least one metal layer 10 to the ceramic element 30 .
- the etched structures are preferably placed in the at least one metal layer 10 in such a way that they define the areas of the planned isolation trenches. gen. With subsequent mechanical processing in the areas above half of these etched structures, the isolation trenches are exposed.
- the course or the geometry of the side surface 15 is defined by a combination of etching and mechanical processing or by means of laser light. In this way, for example, corresponding isolation trenches with overlapping in the area of the ceramic element 30 can be realized. In particular, there is no risk of the ceramic element 30 being damaged by the mechanical tool 40 .
- FIG. 6 shows a method for producing a metal-ceramic substrate 1 according to a sixth exemplary embodiment of the present invention.
- the embodiment of FIG. 6 essentially differs from that of FIG. 5 only in that, in addition to a structuring of the side that faces the ceramic element 30 in the manufactured state, there is also structuring on the opposite side, in particular congruent with the structuring on the side facing the ceramic element 30.
- a structuring of the side that faces the ceramic element 30 in the manufactured state there is also structuring on the opposite side, in particular congruent with the structuring on the side facing the ceramic element 30.
- the structuring of the at least one metal layer 10 on both sides is also visible from the outside after it has been attached to the ceramic element 30, at which points the structuring in the at least one metal layer 10 is placed, so that it can be used in the subsequent mechanical processing, for example by means of a milling tool or a sawing tool, and/or to remove the metal areas between the structured upper sides or structured recesses on the opposite side of the at least one metal layer 10 by means of laser light, as a result of which the isolation trenches are finally exposed.
- FIG. 7 shows a method for producing a metal-ceramic substrate 1 according to a seventh exemplary embodiment of the present invention.
- recesses or recesses 50 are embedded, in particular using a mechanical see tool or laser light, to then connect the at least one metal layer 10 with the side that includes the recess 50 and/or recess to the ceramic element 30.
- the cutout or recess 50 which faces the ceramic element 30 during the connection process, is exposed coming from the opposite side.
- a stepped profile of the side faces 15 is preferably realized in that recesses of different widths are realized on the opposite sides of the at least one metal layer 10 .
- the step height of the side surface 15 of the individual steps is approximately the same size in order to bring about the most efficient possible heat spreading for the components that are arranged in the edge region of the at least one metal layer 10 or the corresponding metallization .
- the step depth created after the binding is greater than that caused by the preparation step when forming the recess 50 .
- FIGS. 8a to 8h Various embodiments of metal-ceramic substrates 1, in particular of various isolation trenches, are shown in FIGS. 8a to 8h.
- the insulation trenches are, in particular, the areas of a metal-ceramic substrate 1 in which two adjacent metal layer sections are separated from one another and are mechanically connected to one another via the ceramic element 30 that has an insulating effect.
- FIG. 8a shows a stepped profile of the side surface 15, which can be produced, for example, using the method from FIG. Also all Other embodiments of the side surface 15 shown in Figures 8a to 8h can preferably be implemented by combining the formation of a recess 50 and/or recess using a mechanical tool or laser light on the side of the at least one metal layer 10, which after bonding the Ceramic element 30 faces, while the recess 50 and/or recess on the side of the at least one metal layer 10 facing away from the ceramic element 30 is realized, for example by an etching process, laser light and/or a mechanical tool, preferably after bonding.
- FIG. 8b shows a side face 15 in which an intermediate section 17 running obliquely relative to the main plane of extension HSE is provided between two side face sections 16 running substantially vertically.
- a side surface section 16 running obliquely to the main extension plane HSE extends from the upper side of the at least one metal layer 10 to a substantially vertical side surface section 16 adjoining the ceramic element 30 .
- One of the side surface sections 16 can run essentially vertically or perpendicularly to the main plane of extension HSE.
- FIG. 8d shows an exemplary embodiment which essentially differs from the purely stepped profile, for example from FIG. 8a, in that the at least one metal layer 10 on the side facing ceramic element 30 has a curved profile, in particular in the a flinter cut 18 has.
- Figure 8d combines a curved profile of the at least one metal layer 10 in the area adjacent to the ceramic element 30 with a stepped profile of the at least one metal layer 10.
- the curved profile is curved or aligned in such a way that a lateral
- the extent of the recess 50 (measured parallel to the main extension plane HSE) of the at least one metal layer 10 decreases as the distance from the ceramic element 30 increases.
- FIG. 8e it is provided that the bent or curved course of the at least one metal layer 10--in contrast to the embodiment from FIG. 8d--extends from the ceramic element 30 to a substantially horizontal side surface section 16.
- the side surface section 16 running essentially vertically from FIG. 8d is missing here.
- the side surface 15 In the embodiment of the example in FIG increases again until the side surface 15 merges into the top of the min least one metal layer 10 . Provision is preferably made for the side surface 15 to be formed from at least two, preferably exactly two, three or four, side surface sections 16, with the individual side surface sections 16 differing in their geometric shape or in their general course.
- the dem Ceramic element 30 is turned away.
- etching can be used to produce comparatively large curvatures or large radii of curvature, while the use of mechanical tools and/or lasers cuts light from the narrow and preferably rectilinear isolation trenches with side surface sections 16 running essentially perpendicular to the main plane of extension HSE on the dem Ceramic element 30 facing side of the at least one metal layer 10 can be realized.
- FIGS. 9a and 9b show a method for producing a metal-ceramic substrate 1 according to an eighth preferred embodiment of the present invention. It is provided that a recess 50 is first made in the at least one metal layer 10 on the side facing the ceramic element 30 in the manufactured state by means of a mechanical tool 40 . In this case, a milling and/or drilling depth is greater than half, preferably greater than 2/3 and particularly preferably greater than % of the thickness D1 of the at least one metal layer 10. After bonding, for example via a soldering material 60, the at least one Metal layer 10 is processed by means of an etching process, in particular in an area which was not removed after processing with the mechanical tool 40, ie was left standing.
- the etching process is controlled in such a way that a projection 55 tapering to a point remains on the side surface 15 .
- two tapered protrusions 55 located at the same height remain after etching.
- the etched portion of the side face 15, ie the side face portion 16 associated with the etching has a curved shape which results in particular from the isotropic effect of the etchant.
- the Projection 55 on the side facing the ceramic element 30 has a flat, in particular essentially horizontal, course, while the side facing away from the ceramic element 30 has a curved course.
- a structured resist layer 70 is arranged on the at least one metal layer 10 for the etching, with which the localization and/or the size of the etching can be advantageously determined.
- the projection 55 is arranged in the upper section facing away from the ceramic element 30 , ie the upper half, preferably the upper third and particularly preferably the upper quarter of the at least one metal layer 10 .
- FIGS. 10a to 10c Various side surfaces 15 are shown in FIGS. 10a to 10c, which can be realized with the method for producing the metal-ceramic substrates 1 according to an exemplary embodiment of the present invention.
- recesses 50 of different widths are made in the at least one metal layer 10 by means of two machining processes, for example on two opposite sides.
- FIG. 10a This makes it possible to provide the largest possible area on the upper side or on the outside of the at least one metal layer 10, in which a connection for electrical components is possible.
- a projection 55 protruding from the at least one metal layer 10 extends at least in regions above the isolation trench.
- the projection 55 is flush with the outside of the at least one metal layer 10 .
- two saw blades of different thicknesses which then realize recesses 50 of different widths in the at least one metal layer 10 on opposite sides.
- This makes it possible to realize side faces 15 with side face sections 16 which are laterally offset from one another and preferably run parallel to one another, so that a stepped profile of the side face 15 can be realized.
- a stepped course in the at least one metal layer 10 is admitted, in particular in the half that faces the ceramic element 30.
- the side face preferably comprises at least three, preferably at least four and particularly preferably five steps.
- the at least one metal layer 10 is then bonded to the ceramic element 30 . After the bonding process, the at least one metal layer 10 is then separated on the side facing away from the ceramic element 30 to form different metal sections in the at least one metal layer 10.
- the exemplary embodiment in FIG. 10c differs from the exemplary embodiment in FIG Metal layer 10 facing away th side of the at least one metal layer 10 to realize.
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Abstract
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PCT/EP2021/070217 WO2022018061A1 (de) | 2020-07-21 | 2021-07-20 | Verfahren zur herstellung eines metall-keramik-substrats und metall-keramik-substrat hergestellt mit einem solchen verfahren |
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EP4311819A1 (de) * | 2022-07-29 | 2024-01-31 | Heraeus Electronics GmbH & Co. KG | Metall-keramik-substrat mit kontaktbereich |
DE102022122799A1 (de) | 2022-09-08 | 2024-03-14 | Rogers Germany Gmbh | Elektronikmodul und Verfahren zur Herstellung eines solchen Elektronikmoduls |
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JP2002280705A (ja) | 2001-03-19 | 2002-09-27 | Hitachi Metals Ltd | 複合基板の回路形成方法及び複合基板 |
JP2003163315A (ja) * | 2001-11-29 | 2003-06-06 | Denki Kagaku Kogyo Kk | モジュール |
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WO2008078788A1 (ja) * | 2006-12-26 | 2008-07-03 | Kyocera Corporation | 放熱基板およびこれを用いた電子装置 |
JP2008186893A (ja) | 2007-01-29 | 2008-08-14 | Matsushita Electric Ind Co Ltd | 放熱配線基板とその製造方法 |
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JP2010238753A (ja) | 2009-03-30 | 2010-10-21 | Kyocera Corp | 放熱用部材およびこれを用いたモジュール |
DE102009033029A1 (de) | 2009-07-02 | 2011-01-05 | Electrovac Ag | Elektronische Vorrichtung |
DE102012103786B4 (de) * | 2012-04-30 | 2017-05-18 | Rogers Germany Gmbh | Metall-Keramik-Substrat sowie Verfahren zum Herstellen eines Metall-Keramik-Substrates |
DE102013104739B4 (de) | 2013-03-14 | 2022-10-27 | Rogers Germany Gmbh | Metall-Keramik-Substrate sowie Verfahren zum Herstellen eines Metall-Keramik-Substrates |
DE102013105528B4 (de) * | 2013-05-29 | 2021-09-02 | Rogers Germany Gmbh | Metall-Keramik-Substrat sowie Verfahren zum Herstellen eines Metall-Keramik-Substrates |
DE102013113734B4 (de) | 2013-12-10 | 2018-03-08 | Rogers Germany Gmbh | Verfahren zum Herstellen eines Metall-Keramik-Substrates |
US10183358B2 (en) * | 2014-12-27 | 2019-01-22 | Cooler Master Co., Ltd. | Bonded functionally graded material structure for heat transfer |
JP6375086B1 (ja) * | 2017-02-23 | 2018-08-15 | 日本碍子株式会社 | 絶縁放熱基板 |
DE112018000457T5 (de) * | 2017-02-23 | 2019-09-26 | Ngk Insulators, Ltd. | Isoliertes wärmeableitungssubstrat |
DE102018123681A1 (de) * | 2018-09-26 | 2020-03-26 | Rogers Germany Gmbh | Trägersubstrat für elektrische, insbesondere elektronische Bauteile und Verfahren zum Herstellen eines Trägersubstrats |
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2020
- 2020-07-21 DE DE102020119208.8A patent/DE102020119208A1/de active Pending
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2021
- 2021-07-20 WO PCT/EP2021/070217 patent/WO2022018061A1/de unknown
- 2021-07-20 JP JP2023504253A patent/JP7478899B2/ja active Active
- 2021-07-20 KR KR1020237001016A patent/KR20230022443A/ko active Search and Examination
- 2021-07-20 US US18/017,334 patent/US20230294213A1/en active Pending
- 2021-07-20 CN CN202180049933.8A patent/CN115884952A/zh active Pending
- 2021-07-20 EP EP21754709.0A patent/EP4168375A1/de active Pending
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US20230294213A1 (en) | 2023-09-21 |
JP2023538229A (ja) | 2023-09-07 |
DE102020119208A1 (de) | 2022-01-27 |
KR20230022443A (ko) | 2023-02-15 |
JP7478899B2 (ja) | 2024-05-07 |
CN115884952A (zh) | 2023-03-31 |
WO2022018061A1 (de) | 2022-01-27 |
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