WO2020183701A1 - 接合基板 - Google Patents
接合基板 Download PDFInfo
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- WO2020183701A1 WO2020183701A1 PCT/JP2019/010545 JP2019010545W WO2020183701A1 WO 2020183701 A1 WO2020183701 A1 WO 2020183701A1 JP 2019010545 W JP2019010545 W JP 2019010545W WO 2020183701 A1 WO2020183701 A1 WO 2020183701A1
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- WIPO (PCT)
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- silicon nitride
- substrate
- copper plate
- nitride ceramic
- ceramic substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
- B23K35/007—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of copper or another noble metal
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- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0006—Exothermic brazing
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- 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
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- 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
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
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- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0233—Sheets, foils
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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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
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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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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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
- C04B37/023—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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
- H01L23/13—Mountings, e.g. non-detachable insulating substrates characterised by the shape
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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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
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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- 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
- B23K2103/18—Dissimilar materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
- C04B2237/122—Metallic interlayers based on refractory metals
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- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
- C04B2237/125—Metallic interlayers based on noble metals, e.g. silver
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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
- C04B2237/407—Copper
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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
- C04B2237/52—Pre-treatment of the joining surfaces, e.g. cleaning, machining
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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
- C04B2237/59—Aspects relating to the structure of the interlayer
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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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
- C22C5/08—Alloys based on silver with copper as the next major constituent
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09136—Means for correcting warpage
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/03—Metal processing
- H05K2203/0307—Providing micro- or nanometer scale roughness on a metal surface, e.g. by plating of nodules or dendrites
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1126—Firing, i.e. heating a powder or paste above the melting temperature of at least one of its constituents
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1131—Sintering, i.e. fusing of metal particles to achieve or improve electrical conductivity
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
- H05K3/067—Etchants
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/102—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by bonding of conductive powder, i.e. metallic powder
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1283—After-treatment of the printed patterns, e.g. sintering or curing methods
- H05K3/1291—Firing or sintering at relative high temperatures for patterns on inorganic boards, e.g. co-firing of circuits on green ceramic sheets
Definitions
- the present invention relates to a bonded substrate.
- Silicon nitride ceramics have high thermal conductivity and high insulation. Therefore, a bonded substrate in which a copper plate is bonded to a silicon nitride ceramic substrate via a bonding layer is suitably used as an insulating heat-dissipating substrate on which a power semiconductor element is mounted.
- the bonded substrate is produced by producing an intermediate product in which the brazing material layer is between the copper plate and the silicon nitride ceramic substrate, and the produced intermediate product is heat-treated to change the brazing material layer into a bonded layer, and the copper plate And manufactured by patterning the bonding layer.
- the copper circuit board is joined to at least one surface of the ceramic substrate formed of silicon nitride via a brazing material layer (paragraphs 0013 and 0020). ..
- the ceramic circuit board includes a brazing material layer interposed between the copper circuit board and the ceramics circuit board, and a brazing material protruding portion protruding outward from the side surface of the copper circuit board (paragraph 0013).
- the brazing filler metal layer is formed from a brazing filler metal containing Ag, Cu and Ti (paragraph 0013).
- the protruding portion of the brazing material does not have high flatness and has holes for exposing the ceramic substrate (FIG. 7).
- the electrical insulation between adjacent copper plates may not be good.
- a DC electric field or an AC electric field of several kV / mm is applied in an environment of 85 ° C. and 85% RH, the electrical insulation between adjacent copper plates may deteriorate.
- the present invention has been made in consideration of this problem.
- the problem to be solved by the present invention is to provide a bonded substrate capable of improving electrical insulation between adjacent copper plates while suppressing defects of the bonded substrate due to concentration of stress on the end portion of the copper plate. It is to be.
- the bonding substrate includes a silicon nitride ceramic substrate, a copper plate, and a bonding layer.
- the copper plate and the bonding layer are arranged on the silicon nitride ceramic substrate.
- a copper plate is bonded to a silicon nitride ceramic substrate.
- the bonding layer includes an inter-plate portion between the silicon nitride ceramic substrate and the copper plate, and a protruding portion protruding from between the silicon nitride ceramic substrate and the copper plate. The protruding portion covers the silicon nitride ceramic substrate so as not to expose the silicon nitride ceramic substrate.
- the concentration of stress on the end portion of the copper plate is relaxed by the protruding portion. As a result, it is possible to suppress defects in the bonded substrate due to stress concentration on the ends of the copper plate.
- the electrical insulation property of the bonded substrate can be improved.
- FIG. 5 is an enlarged cross-sectional view schematically showing a part of the bonded substrate of the first embodiment. It is a flowchart which shows the manufacturing flow of the bonded substrate of 1st Embodiment. It is sectional drawing which shows typically the intermediate product obtained in the process of manufacturing the bonded substrate of 1st Embodiment. It is sectional drawing which shows typically the intermediate product obtained in the process of manufacturing the bonded substrate of 1st Embodiment. It is sectional drawing which shows typically the intermediate product obtained in the process of manufacturing the bonded substrate of 1st Embodiment. It is sectional drawing which shows typically the intermediate product obtained in the process of manufacturing the bonded substrate of 1st Embodiment.
- the protruding portion provided in the conventional bonded substrate represented by the ceramic circuit board described in Patent Document 1 contains silver and copper. Further, silver and copper contained in the protruding portion are likely to be removed during the process of manufacturing the bonded substrate, particularly during the etching performed during the process of manufacturing the bonded substrate. Therefore, the protruding portion does not have high flatness. If the protruding portion does not have high flatness, a chemical residue that causes a decrease in electrical insulation tends to remain on the protruding portion. This is a major cause of deterioration in electrical insulation in conventional bonded substrates.
- the chemical solution that causes the chemical solution residue is a chemical solution used for etching the copper plate and the bonding layer, a chemical solution used for cleaning the surface of the copper plate by acid cleaning, and the like.
- the chemical residue is composed of hydrochloric acid, sulfuric acid, etc. contained in the chemical solution. If a chemical residue remains on the protruding portion, silver, copper, etc. contained in the protruding portion, or an alloy containing silver, copper, etc. contained in the protruding portion may cause ion migration. In particular, when a DC electric field or an AC electric field of several kV / mm is applied between adjacent protruding portions in a high temperature and high humidity environment such as 85 ° C. and 85% RH, this problem becomes remarkable.
- FIG. 1 is a cross-sectional view schematically showing the bonded substrate of the first embodiment.
- FIG. 2 is an enlarged cross-sectional view schematically showing a part of the bonded substrate of the first embodiment.
- FIG. 2 is an enlarged view of a part A of FIG.
- the bonding substrate 100 of the first embodiment includes a silicon nitride ceramic substrate 110, a copper plate 111, a bonding layer 112, a copper plate 113, and a bonding layer 114.
- the bonded substrate 100 may include elements other than these elements.
- One of the set of the copper plate 111 and the bonding layer 112 and the set of the copper plate 113 and the bonding layer 114 may be omitted.
- the copper plates 111 and 113 are bonded to the silicon nitride ceramic substrate 110 via the bonding layers 112 and 114, respectively.
- the copper plates 111 and 113 are brazed to the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110 by the active metal brazing method by the bonding layers 112 and 114, respectively.
- the bonded substrate 100 may be used in any way, and is used, for example, as an insulated heat-dissipating substrate on which a power semiconductor element is mounted.
- the copper plate 111 and the bonding layer 112 are arranged on the main surface 1101 of the silicon nitride ceramic substrate 110 as shown in FIGS. 1 and 2.
- the copper plate 113 and the bonding layer 114 are arranged on the main surface 1102 of the silicon nitride ceramic substrate 110 as shown in FIG.
- the bonding layers 112 and 114 join the copper plates 111 and 113 to the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110, respectively.
- the joint layer 112 includes an inter-plate portion 120 and a protruding portion 121.
- the inter-plate portion 120 is located between the silicon nitride ceramic substrate 110 and the copper plate 111.
- the protruding portion 121 protrudes from between the silicon nitride ceramic substrate 110 and the copper plate 111.
- the bonding layer 114 includes an inter-plate portion 122 and a protruding portion 123.
- the inter-plate portion 122 is located between the silicon nitride ceramic substrate 110 and the copper plate 113.
- the protruding portion 123 protrudes from between the silicon nitride ceramic substrate 110 and the copper plate 113.
- the concentration of stress on the ends of the copper plates 111 and 113 is relaxed by the protruding portions 121 and 123, respectively. As a result, it is possible to suppress defects in the bonded substrate 100 due to stress concentration on the ends of the copper plates 111 and 113.
- the bonding layers 112 and 114 preferably have a thickness of 0.1 ⁇ m or more and 3 ⁇ m or less. Since the bonding layers 112 and 114 have such a small thickness, the concentration of stress on the ends of the copper plates 111 and 113 is effectively alleviated by the protruding portions 121 and 123, respectively.
- the protruding portions 121 and 123 cover the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110 so as not to expose the main surfaces 1101 and 1102, respectively. Therefore, unlike the brazing material protrusions provided in the ceramic circuit board described in Japanese Patent No. 6158144, the protruding portions 121 and 123 do not have holes for exposing the silicon nitride ceramic substrate 110.
- the upper surface 121U of the protruding portion 121 and the upper surface 123U of the protruding portion 123 preferably have an arithmetic mean roughness Ra of 0.7 ⁇ m or less and a maximum height Rz of 5 ⁇ m or less.
- the protruding portions 121 and 123 have such high flatness. Therefore, chemical residue that causes a decrease in electrical insulation is unlikely to remain on the protruding portions 121 and 123. Thereby, the electrical insulation property of the bonded substrate 100 can be improved.
- the bonding layers 112 and 114 are at least one element selected from the group consisting of titanium (Ti) and zirconium (Zr) and at least one element selected from the group consisting of nitrogen (N) and silicon (Si). However, it does not contain silver (Ag) and copper (Cu), which are generally contained in the bonding layer. For this reason, the protruding portions 121 and 123 also contain a compound of at least one element selected from the group consisting of titanium and zirconium and at least one element selected from the group consisting of nitrogen and silicon, but the bonding layer. Does not contain silver and copper commonly found in.
- FIG. 3 is a flowchart showing a flow of manufacturing a bonded substrate according to the first embodiment.
- 4, 5 and 6 are cross-sectional views schematically illustrating an intermediate product obtained in the process of manufacturing the bonded substrate of the first embodiment.
- steps S101 to S104 shown in FIG. 3 are sequentially executed.
- step S101 as shown in FIG. 4, brazing material layers 132 and 134 are formed on the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110, respectively.
- the formation of the brazing material layer 132 is omitted.
- the formation of the brazing material layer 134 is omitted.
- a paste containing an active metal brazing filler metal and a solvent is prepared.
- the paste may further contain binders, dispersants, defoamers and the like.
- the prepared paste is screen-printed on the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110, and the first and second screen-printed films are formed on the main surfaces 1101 and 1102 of the silicon nitride ceramic substrate 110, respectively. Will be done.
- the solvent contained in the formed first and second screen printing films is volatilized. As a result, the first and second screen printing films are changed to the brazing filler metal layers 132 and 134, respectively.
- the brazing filler metal layers 132 and 134 include an active metal brazing filler metal.
- the brazing filler metal layers 132 and 134 may be formed by a method different from this method.
- the active metal brazing material includes silver (Ag) powder and at least one hydrogenated metal powder selected from the group consisting of titanium hydride (TiH 2 ) powder and zirconium hydride (ZrH 2 ) powder.
- the active metal brazing material preferably contains 40% by weight or more and 80% by weight or less of silver powder. Since the active metal brazing material contains only a small amount of silver powder in this way, the silver constituting the silver powder can be diffused to the copper plates 111A and 113A in the step S103 described below to eliminate the silver from the bonding layers 112B and 114B. It will be easier.
- the active metal brazing material preferably consists of a powder having an average particle size of 0.1 ⁇ m or more and 10 ⁇ m or less.
- the average particle size can be obtained by measuring the particle size distribution with a commercially available laser diffraction type particle size distribution measuring device and calculating D50 from the measured particle size distribution. Since the active metal brazing material is composed of a powder having such a small average particle size, the brazing material layers 132 and 134 can be thinned.
- the brazing filler metal layers 132 and 134 preferably have a thickness of 0.1 ⁇ m or more and 5 ⁇ m or less. Since the brazing filler metal layers 132 and 134 have such a small thickness, the amount of silver powder contained in the brazing filler metal layers 132 and 134 is reduced, and the silver constituting the silver powder in the step S103 described below is formed on the copper plate 111A. And 113A makes it easy to eliminate silver from the bonding layers 112B and 114B.
- step S102 as shown in FIG. 5, copper plates 111A and 113A are arranged on the brazing material layers 132 and 134 formed, respectively.
- an intermediate product 100A including the silicon nitride ceramic substrate 110, the copper plate 111A, the brazing material layer 132, the copper plate 113A, and the brazing material layer 134 can be obtained.
- the arrangement of the copper plate 111A is omitted.
- the arrangement of the copper plate 113A is omitted.
- step S103 the obtained intermediate product 100A is heat-treated.
- the brazing filler metal layers 132 and 134 are changed to the bonding layers 112B and 114B, respectively, as shown in FIG.
- an intermediate product 100B including a silicon nitride ceramic substrate 110, a copper plate 111A, and bonding layers 112B and 114B can be obtained.
- the bonding layers 112B and 114B bond the copper plates 111A and 113A to the silicon nitride ceramic substrate 110, respectively.
- the bonding layers 112B and 114B are composed of a compound of at least one element selected from the group consisting of titanium and zirconium and at least one element selected from the group consisting of nitrogen and silicon, and contain silver. Absent. At least one element selected from the group consisting of nitrogen and silicon is supplied from the silicon nitride ceramic substrate 110.
- step S103 preferably, hot pressing is performed on the intermediate product 100A.
- hot pressing it is desirable that the intermediate product 100A is in the thickness direction of the silicon nitride ceramic substrate 110 according to the surface pressure profile in which the maximum surface pressure is 5 MPa or more and 25 MPa or less in vacuum or an inert gas. Is pressurized and heated according to a temperature profile with a maximum temperature of 800 ° C. or higher and 900 ° C. or lower.
- the copper plates 111A and 113A are made of silicon nitride without forming voids. It can be bonded to the ceramic substrate 110. Further, since the brazing filler metal layers 132 and 134 can be thinned without forming voids, the amount of silver contained in the brazing filler metal layers 132 and 134 can be reduced, and silver is diffused to the copper plates 111A and 113A to form a bonding layer. It becomes easy to eliminate silver from 112B and 114B.
- the shape of the particles constituting the active metal brazing material is changed to a layered shape, and silver or the like is diffused into the copper plates 111A and 113A, so that the bonding layers 112B and 114B are substantially 0.1 ⁇ m or more and 3 ⁇ m or less. Will have a uniform thickness of.
- step S104 the copper plate 111A, the bonding layer 112B, the copper plate 113A, and the bonding layer 114B are patterned.
- the copper plates 111A and 113A are changed to the patterned copper plates 111 and 113 shown in FIG. 1, respectively.
- the bonding layers 112B and 114B are changed to the patterned bonding layers 112 and 114 shown in FIG. 1, respectively.
- FIG. 7 is a flowchart showing the flow of patterning of the copper plate and the bonding layer in the production of the bonding substrate of the first embodiment.
- 8 and 9 are cross-sectional views schematically illustrating an intermediate product obtained in the process of patterning a copper plate and a bonding layer in the production of the bonding substrate of the first embodiment.
- the steps S111 to S113 shown in FIG. 7 are sequentially executed.
- step S111 the copper plates 111A and 113A are etched. As a result, a part of the copper plates 111A and 113A is removed, and as shown in FIG. 8, the copper plates 111A and 113A are changed to the etched copper plates 111C and 113C, respectively. Further, in the bonding layer 112B, a first portion 140 between the silicon nitride ceramic substrate 110 and the etched copper plate 111C and a second portion not between the silicon nitride ceramic substrate 110 and the etched copper plate 111C are formed. 141 is formed.
- a first portion 142 between the silicon nitride ceramics substrate 110 and the etched copper plate 113C and a second portion not between the silicon nitride ceramics substrate 110 and the etched copper plate 113C are formed.
- An etching solution such as an iron chloride aqueous solution system or a copper chloride aqueous solution system can be used for etching the copper plates 111A and 113A.
- step S112 as shown in FIG. 9, the formed second portions 141 and 143 are etched. As a result, the second portions 141 and 143 are removed, leaving the first portions 140 and 142. The remaining first portions 140 and 142 become the bonding layers 120 and 122, respectively.
- An etching solution such as an aqueous ammonium fluoride solution can be used for etching the second portions 141 and 143.
- step S113 the etched copper plates 111C and 113C are soft-etched. As a result, the vicinity of the end portions of the etched copper plates 111C and 113C is removed. Further, the etched copper plates 111C and 113C are changed to the patterned copper plates 111 and 113 shown in FIG. 1, respectively. Further, the interplate portions 120 and 122 shown in FIG. 1 are formed on the etched joint layers 140 and 142, respectively, and the protruding portions 121 and 123 shown in FIG. 1 are formed, respectively.
- an etching solution such as an iron chloride aqueous solution system or a copper chloride aqueous solution system can be used.
- the bonding layer 112B and the bonding layer 114B do not contain silver and copper which are easily removed by the etching solution. Therefore, in the steps S111, S112, and S113 described above, the decrease in flatness caused by the removal of silver or copper is unlikely to occur.
- the bonded substrate 100 was produced by the method for manufacturing the bonded substrate 100 described above. Further, in Comparative Example 1, an active metal brazing material containing a large amount of silver and copper was used, the thicknesses of the brazing material layers 132 and 134 were set to 15 ⁇ m, and the surface pressure at which the maximum surface pressure was 0.2 MPa.
- the bonded substrate 100 was manufactured by the same manufacturing method as the bonded substrate 100 described above except that the intermediate product 100A was pressed in the thickness direction of the silicon nitride ceramic substrate 110 according to the profile. .. In Examples 1, 2 and 3, and Comparative Example 1, the width of the gap between the adjacent protruding portions 121 was set to 1 mm.
- the cross section of the intermediate product 100B obtained in the process of producing the bonded substrate 100 in Example 1 was observed with an electron microscope (SEM).
- SEM electron microscope
- Example 1 Further, the cross section of the bonded substrate 100 produced in Example 1 was observed by SEM.
- the SEM image obtained by observation is shown in FIG. From the SEM image, it can be understood that the flatness of the upper surface 121U of the protruding portion 121 caused by the removal of silver or copper is unlikely to decrease.
- the surface roughness of the upper surface 121U of the protruding portion 121 of the produced bonded substrate 100 and the main surface 1101 of the silicon nitride ceramic substrate 110 was evaluated.
- the surface profiles of the upper surface 121U and the main surface 1101 were measured by the surface roughness meter Surfcom 480A manufactured by Tokyo Seimitsu Co., Ltd., and the arithmetic average roughness Ra and the maximum height of the upper surface 121U and the main surface 1101 were measured. Rz was obtained. The results are shown in Table 1.
- the electrical insulation of the produced bonded substrate 100 was evaluated.
- a test was conducted in which the produced bonded substrate 100 was applied between adjacent copper plates 111 at a voltage of 1 kV for 1000 hours in an environment of 85 ° C. and 85% RH, and the electrical insulation after the test was improved. It was confirmed whether or not it was deteriorated from that before the test. The results are shown in Table 1.
- the surface roughness of the upper surface 121U of the protruding portion 121 of the bonded substrate 100 of Examples 1, 2 and 3 is significantly smaller than that of Comparative Example 1. Further, the surface roughness of the upper surface 121U of the protruding portion 121 of the bonding substrate 100 of Examples 1, 2 and 3 is the surface roughness of the main surface 1101 of the silicon nitride ceramic substrate 110 of the bonding substrate 100 of Examples 1, 2 and 3, respectively. Close to roughness. This means that since the protruding portion 121 has a uniform thickness, the flatness of the main surface 1101 of the silicon nitride ceramic substrate 110 is reflected in the flatness of the upper surface 121U of the protruding portion 121 almost as it is.
- the electrical insulation after the test is deteriorated as compared with that before the test, but in the bonded substrate 100 of Examples 1, 2 and 3, the electrical insulation after the test is performed.
- the sex is not worse than that before the test. From these facts, it can be understood that according to the bonding substrate 100 of Examples 1, 2 and 3, the electrical insulation between adjacent copper plates 111 is improved.
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Abstract
Description
特許文献1に記載されたセラミックス回路基板に代表される従来の接合基板に備えられるはみ出し部は、銀及び銅を含む。また、当該はみ出し部に含まれる銀及び銅は、接合基板を製造する途上で、特に接合基板を製造する途上で行われるエッチング中に除去されやすい。このため、当該はみ出し部は、高い平坦性を有しない。そして、当該はみ出し部が高い平坦性を有しない場合は、当該はみ出し部上に電気絶縁性の低下の原因となる薬液残渣が残りやすい。これが、従来の接合基板において電気絶縁性が低下する大きな原因である。薬液残渣の原因となる薬液は、銅板及び接合層をエッチングするために使用される薬液、銅板の表面を酸洗浄によりクリーニングするために使用される薬液等である。薬液残渣は、薬液に含まれる塩酸、硫酸等からなる。はみ出し部上に薬液残渣が残った場合は、はみ出し部に含まれる銀、銅等、又ははみ出し部に含まれる銀、銅等を含む合金がイオンマイグレーションを引き起こすことがある。特に、85℃85%RH等の高温高湿環境下で隣接するはみ出し部の間に数kV/mmの直流電界又は交流電界が印加された場合は、この問題が顕著にあらわれる。
図1は、第1実施形態の接合基板を模式的に図示する断面図である。図2は、第1実施形態の接合基板の一部を模式的に図示する拡大断面図である。図2は、図1の一部Aを拡大して図示する。
銅板111及び接合層112は、図1及び図2に図示されるように、窒化ケイ素セラミックス基板110の主面1101上に配置される。銅板113及び接合層114は、図1に図示されるように、窒化ケイ素セラミックス基板110の主面1102上に配置される。
はみ出し部121及び123は、それぞれ、窒化ケイ素セラミックス基板110の主面1101及び1102を露出させないように主面1101及び1102を覆う。このため、はみ出し部121及び123は、特許第6158144号公報に記載されたセラミックス回路基板に備えられるろう材はみ出し部と異なり、窒化ケイ素セラミックス基板110が露出する孔を有しない。
図3は、第1実施形態の接合基板の製造の流れを示すフローチャートである。図4、図5及び図6は、第1実施形態の接合基板の製造の途上で得られる中間品を模式的に図示する断面図である。
図7は、第1実施形態の接合基板の製造における銅板及び接合層のパターニングの流れを示すフローチャートである。図8及び図9は、第1実施形態の接合基板の製造における銅板及び接合層のパターニングの途上で得られる中間品を模式的に図示する断面図である。
実施例1、2及び3においては、上述した接合基板100の製造方法により、接合基板100を作製した。また、比較例1においては、銀及び銅を多く含む活性金属ろう材を用いた点、ろう材層132及び134の厚さを15μmとした点、並びに最高面圧が0.2MPaとなる面圧プロファイルにしたがって窒化ケイ素セラミックス基板110の厚さ方向に中間品100Aが加圧された点を除いて上述した接合基板100の製造方法と同様の接合基板100の製造方法により、接合基板100を作製した。実施例1、2及び3、並びに比較例1においては、隣接するはみ出し部121の間の間隙の幅を1mmとした。
110 窒化ケイ素セラミックス基板
111,113,111A,113A 銅板
112,114,112B,114B 接合層
120,122 板間部
121,123 はみ出し部
132,134 ろう材層
100A 中間品
140 第1の部分
141 第2の部分
Claims (3)
- 窒化ケイ素セラミックス基板と、
前記窒化ケイ素セラミックス基板上に配置される銅板と、
前記窒化ケイ素セラミックス基板上に配置され、前記銅板を前記窒化ケイ素セラミックス基板に接合し、前記窒化ケイ素セラミックス基板と前記銅板との間にある板間部、及び前記窒化ケイ素セラミックス基板と前記銅板との間からはみ出すはみ出し部を備え、前記はみ出し部が前記窒化ケイ素セラミックス基板を露出させないように前記窒化ケイ素セラミックス基板を覆う接合層と、
を備える接合基板。 - 前記接合層の上面は、0.7μm以下の算術平均粗さRaを有し、5μm以下の最大高さRzを有する
請求項1の接合基板。 - 前記はみ出し部は、銀及び銅を含まない
請求項1又は2の接合基板。
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JP2021505452A JP7197677B2 (ja) | 2019-03-14 | 2019-03-14 | 接合基板 |
PCT/JP2019/010545 WO2020183701A1 (ja) | 2019-03-14 | 2019-03-14 | 接合基板 |
EP19919323.6A EP3941166A4 (en) | 2019-03-14 | 2019-03-14 | BOUND SUBSTRATE |
US17/460,694 US20210387923A1 (en) | 2019-03-14 | 2021-08-30 | Bonded substrate |
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PCT/JP2019/010545 WO2020183701A1 (ja) | 2019-03-14 | 2019-03-14 | 接合基板 |
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WO2023074470A1 (ja) * | 2021-10-25 | 2023-05-04 | 株式会社 東芝 | セラミックス銅回路基板およびそれを用いた半導体装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6158144B2 (ja) | 1979-06-08 | 1986-12-10 | Sanyo Denki Kk | |
WO2017006661A1 (ja) * | 2015-07-09 | 2017-01-12 | 株式会社東芝 | セラミックス金属回路基板およびそれを用いた半導体装置 |
JP2017035805A (ja) * | 2015-08-07 | 2017-02-16 | Jx金属株式会社 | 金属セラミック接合基板及び、その製造方法 |
WO2017200004A1 (ja) * | 2016-05-19 | 2017-11-23 | 三菱マテリアル株式会社 | パワーモジュール用基板 |
Family Cites Families (6)
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JP4345066B2 (ja) * | 2005-05-24 | 2009-10-14 | 日立金属株式会社 | セラミックス回路基板及びこれを用いたパワー半導体モジュール |
WO2013094213A1 (ja) * | 2011-12-20 | 2013-06-27 | 株式会社 東芝 | セラミックス銅回路基板とそれを用いた半導体装置 |
JP6400422B2 (ja) * | 2014-10-07 | 2018-10-03 | Dowaメタルテック株式会社 | 金属−セラミックス回路基板およびその製造方法 |
CN110690187B (zh) * | 2015-09-28 | 2023-12-12 | 株式会社东芝 | 电路基板及半导体装置 |
WO2020138283A1 (ja) * | 2018-12-28 | 2020-07-02 | デンカ株式会社 | セラミックス-銅複合体、セラミックス回路基板、パワーモジュール及びセラミックス-銅複合体の製造方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6158144B2 (ja) | 1979-06-08 | 1986-12-10 | Sanyo Denki Kk | |
WO2017006661A1 (ja) * | 2015-07-09 | 2017-01-12 | 株式会社東芝 | セラミックス金属回路基板およびそれを用いた半導体装置 |
JP2017035805A (ja) * | 2015-08-07 | 2017-02-16 | Jx金属株式会社 | 金属セラミック接合基板及び、その製造方法 |
WO2017200004A1 (ja) * | 2016-05-19 | 2017-11-23 | 三菱マテリアル株式会社 | パワーモジュール用基板 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112679220A (zh) * | 2020-12-30 | 2021-04-20 | 中国电子科技集团公司第十三研究所 | 氮化硅陶瓷覆铜基板及其制备方法 |
WO2023074470A1 (ja) * | 2021-10-25 | 2023-05-04 | 株式会社 東芝 | セラミックス銅回路基板およびそれを用いた半導体装置 |
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JP7197677B2 (ja) | 2022-12-27 |
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