WO2022270306A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- WO2022270306A1 WO2022270306A1 PCT/JP2022/023070 JP2022023070W WO2022270306A1 WO 2022270306 A1 WO2022270306 A1 WO 2022270306A1 JP 2022023070 W JP2022023070 W JP 2022023070W WO 2022270306 A1 WO2022270306 A1 WO 2022270306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semiconductor device
- terminal
- signal
- conductive portion
- substrate
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 185
- 239000010410 layer Substances 0.000 claims abstract description 204
- 239000000758 substrate Substances 0.000 claims abstract description 155
- 229910052751 metal Inorganic materials 0.000 claims abstract description 101
- 239000002184 metal Substances 0.000 claims abstract description 101
- 239000004020 conductor Substances 0.000 claims abstract description 96
- 239000012790 adhesive layer Substances 0.000 claims abstract description 85
- 239000011347 resin Substances 0.000 claims description 109
- 229920005989 resin Polymers 0.000 claims description 109
- 239000000463 material Substances 0.000 claims description 47
- 239000000853 adhesive Substances 0.000 claims description 44
- 230000001070 adhesive effect Effects 0.000 claims description 44
- 238000001514 detection method Methods 0.000 claims description 35
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 description 16
- 239000010949 copper Substances 0.000 description 10
- 239000000470 constituent Substances 0.000 description 7
- 239000011800 void material Substances 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49811—Additional leads joined to the metallisation on the insulating substrate, e.g. pins, bumps, wires, flat leads
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/60—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49838—Geometry or layout
- H01L23/49844—Geometry or layout for devices being provided for in H01L29/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/07—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L29/00
- H01L25/072—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L29/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
- H01L2224/0601—Structure
- H01L2224/0603—Bonding areas having different sizes, e.g. different heights or widths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/33—Structure, shape, material or disposition of the layer connectors after the connecting process of a plurality of layer connectors
- H01L2224/331—Disposition
- H01L2224/3318—Disposition being disposed on at least two different sides of the body, e.g. dual array
- H01L2224/33181—On opposite sides of the body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L2224/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
- H01L2224/401—Disposition
- H01L2224/40135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/40137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
- H01L2224/40139—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate with an intermediate bond, e.g. continuous strap daisy chain
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L2224/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
- H01L2224/401—Disposition
- H01L2224/40151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/40221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/40245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73215—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73221—Strap and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73263—Layer and strap connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L24/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L24/33—Structure, shape, material or disposition of the layer connectors after the connecting process of a plurality of layer connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L24/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L24/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/73—Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/10251—Elemental semiconductors, i.e. Group IV
- H01L2924/10253—Silicon [Si]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/10251—Elemental semiconductors, i.e. Group IV
- H01L2924/10254—Diamond [C]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/1026—Compound semiconductors
- H01L2924/1027—IV
- H01L2924/10272—Silicon Carbide [SiC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/1026—Compound semiconductors
- H01L2924/1032—III-V
- H01L2924/1033—Gallium nitride [GaN]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
- H01L2924/13055—Insulated gate bipolar transistor [IGBT]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19105—Disposition of discrete passive components in a side-by-side arrangement on a common die mounting substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19107—Disposition of discrete passive components off-chip wires
Definitions
- the present disclosure relates to semiconductor devices.
- Patent Document 1 discloses a conventional semiconductor device (power module).
- a power module described in Patent Document 1 includes a plurality of transistors, a main substrate, a signal substrate and signal terminals. A plurality of transistors are mounted on the main substrate.
- the signal board is mounted on the main board.
- a signal wiring pattern is mounted on the signal board.
- the signal wiring pattern includes, for example, a gate signal wiring pattern and a source sense signal wiring pattern.
- the signal terminals are joined to the signal wiring pattern of the signal board.
- the signal terminals include a gate terminal joined to the signal wiring pattern for gate and a source sense terminal joined to the signal wiring pattern for source sensing.
- the present disclosure has been conceived in view of the above circumstances, and one of the subjects thereof is to provide a semiconductor device with improved reliability.
- a semiconductor device provided by the present disclosure includes a conductive cylindrical holder, a terminal including a metal pin inserted into the holder, a signal substrate including a wiring layer and an insulating substrate, and a signal substrate through the insulating substrate.
- the wiring layer has a back surface, the wiring layer is formed on the main surface, the terminal is fixed, the holder is joined to the wiring layer, and the metal pin extends along the thickness direction.
- the adhesive layer includes an insulating layer that electrically insulates the signal substrate and the support conductor.
- the semiconductor device of the present disclosure reliability of the semiconductor device can be improved.
- FIG. 1 is a perspective view showing a semiconductor device of the present disclosure.
- FIG. 2 is a perspective view of FIG. 1 with a plurality of wires and resin members omitted.
- FIG. 3 is a perspective view of FIG. 2 with the first conductive member omitted.
- FIG. 4 is a plan view showing the semiconductor device of the present disclosure.
- 5 is a diagram showing the resin member in imaginary lines in the plan view of FIG. 4.
- FIG. FIG. 6 is a right side view of the semiconductor device of the present disclosure, showing the resin member in imaginary lines.
- FIG. 9 is a right side view showing the semiconductor device of the present disclosure.
- FIG. 10 is a bottom view showing the semiconductor device of the present disclosure.
- FIG. 11 is a cross-sectional view along line XI-XI in FIG.
- FIG. 12 is a cross-sectional view taken along line XII-XII in FIG.
- FIG. 13 is a partially enlarged view enlarging a part of FIG. 12.
- FIG. FIG. 14 is a partially enlarged view enlarging a part of FIG. 12.
- FIG. 15 is a cross-sectional view along line XV-XV in FIG. 5.
- FIG. 16 is a cross-sectional view taken along line XVI--XVI of FIG.
- FIG. 17 is a cross-sectional view along line XVII-XVII of FIG.
- FIG. 18 is a cross-sectional view along line XVIII-XVIII in FIG.
- FIG. 19 is an enlarged cross-sectional view of a main part showing a semiconductor device according to a first modified example of the present disclosure, and is an enlarged view of a part of the cross section corresponding to FIG. 12 .
- FIG. 20 is an enlarged cross-sectional view of a main part showing a semiconductor device according to a second modification of the present disclosure, and is an enlarged view of a part of the cross section corresponding to FIG. 12 .
- FIG. 20 is an enlarged cross-sectional view of a main part showing a semiconductor device according to a second modification of the present disclosure, and is an enlarged view of a part of the cross section corresponding to FIG. 12 .
- FIG. 21 is an enlarged cross-sectional view of a main part showing a semiconductor device according to a third modified example of the present disclosure, and is an enlarged view of a part of the cross section corresponding to FIG. 12 .
- FIG. 22 is an enlarged cross-sectional view of a main part showing a semiconductor device according to a fourth modified example of the present disclosure, and is an enlarged view of a part of the cross section corresponding to FIG. 12 .
- a certain entity A is formed on a certain entity B
- a certain entity A is formed on (of) an entity B
- mean a certain entity A is directly formed in a certain thing B
- a certain thing A is formed in a certain thing B while another thing is interposed between a certain thing A and a certain thing B” including.
- ⁇ an entity A is arranged on an entity B'' and ⁇ an entity A is arranged on (of) an entity B'' mean ⁇ an entity A being placed directly on a certain thing B", and "a thing A being placed on a certain thing B with another thing interposed between something A and something B" include.
- ⁇ an object A is located on (of) an object B'' means ⁇ a certain object A is in contact with an object B, and an object A is located on an object B. Being located on (of)" and "something A is located on (something) B while another thing is interposed between something A and something B including "things”.
- ⁇ a certain object A overlaps an object B when viewed in a certain direction'' means ⁇ a certain object A overlaps all of an object B'', and ⁇ a certain object A overlaps an object B.'' It includes "overlapping a part of a certain thing B".
- the semiconductor device A1 includes a plurality of semiconductor elements 1, a support conductor 2, a support substrate 3, a plurality of power terminals 41 to 43, a plurality of control terminals 44, a signal substrate 5, an adhesive layer 6, a first conduction member 71, a second conduction A member 72 , a plurality of wires 73 to 76 , a resin member 8 and a resin filling portion 88 are provided.
- the multiple semiconductor elements 1 include multiple first switching elements 1A and multiple second switching elements 1B.
- the support conductor 2 includes a first conductive portion 2A and a second conductive portion 2B.
- the multiple control terminals 44 include multiple first control terminals 45 and multiple second control terminals 46 .
- the signal board 5 includes a first signal board 5A and a second signal board 5B.
- the adhesive layer 6 includes a first adhesive 6A and a second adhesive 6B.
- the three mutually orthogonal directions are the x-direction, the y-direction, and the z-direction.
- the z direction is the thickness direction of the semiconductor device A1.
- the x direction is the horizontal direction in the plan view (see FIG. 4) of the semiconductor device A1.
- the y direction is the vertical direction in the plan view (see FIG. 4) of the semiconductor device A1.
- "planar view” means when viewed in the z direction. Note that descriptions such as “upper”, “lower”, “upper”, “lower”, “upper surface” and “lower surface” indicate the relative positional relationship of each part in the z direction, and are not necessarily the direction of gravity. It is not a term that defines the relationship between The x-direction is an example of a "first direction.”
- Each of the plurality of semiconductor elements 1 is an electronic component that serves as the functional core of the semiconductor device A1.
- Each constituent material of the plurality of semiconductor elements 1 is a semiconductor material mainly including SiC (silicon carbide), for example. This semiconductor material is not limited to SiC, and may be Si (silicon), GaN (gallium nitride), C (diamond), or the like.
- Each semiconductor element 1 is, for example, a power semiconductor chip having a switching function such as a MOSFET (Metal Oxide Semiconductor Field Effect Transistor). Although each semiconductor element 1 is a MOSFET in this embodiment, it is not limited to this, and may be another transistor such as an IGBT (Insulated Gate Bipolar Transistor). Each semiconductor element 1 is the same element.
- Each semiconductor element 1 is, for example, an n-channel MOSFET, but may be a p-channel MOSFET.
- the multiple semiconductor elements 1 include multiple first switching elements 1A and multiple second switching elements 1B. As shown in FIG. 8, the semiconductor device A1 includes four first switching elements 1A and four second switching elements 1B. is not limited to The number of first switching elements 1A and the number of second switching elements 1B are appropriately changed according to the performance required of the semiconductor device A1. The number of first switching elements 1A and the number of second switching elements 1B may be equal or different. The number of first switching elements 1A and the number of second switching elements 1B are determined by the current capacity handled by the semiconductor device A1.
- the semiconductor device A1 is configured, for example, as a half-bridge switching circuit.
- the plurality of first switching elements 1A constitute an upper arm circuit of the semiconductor device A1
- the plurality of second switching elements 1B constitute a lower arm circuit of the semiconductor device A1.
- the plurality of first switching elements 1A are connected in parallel with each other
- the plurality of second switching elements 1B are connected in parallel with each other.
- Each first switching element 1A and each second switching element 1B are connected in series.
- Each of the plurality of semiconductor elements 1 (the plurality of first switching elements 1A and the plurality of second switching elements 1B) has an element main surface 10a and an element back surface 10b, as shown in FIGS.
- the element main surface 10a and the element back surface 10b are spaced apart in the z direction.
- the element main surface 10a faces the z2 direction
- the element back surface 10b faces the z1 direction.
- Each of the plurality of first switching elements 1A is mounted on the support conductor 2 (first conductive portion 2A) as shown in FIGS. 8, 12, 13 and 17, and the like. In the example shown in FIG. 8, the plurality of first switching elements 1A are arranged, for example, in the y-direction and separated from each other. Each of the plurality of first switching elements 1A is conductively joined to the support conductor 2 (first conductive portion 2A) via the conductive joint material 19 .
- the conductive bonding material 19 is, for example, solder, metal paste material, or sintered metal.
- Each of the plurality of second switching elements 1B is mounted on the support conductor 2 (second conductive portion 2B) as shown in FIGS. 8, 12, 14 and 16, and the like.
- the plurality of second switching elements 1B are arranged, for example, in the y direction and separated from each other.
- Each of the plurality of second switching elements 1B is conductively joined to the support conductor 2 (second conductive portion 2B) via the conductive joint material 19 .
- the element rear surface 10b faces the support conductor 2 (second conductive portion 2B).
- the plurality of first switching elements 1A and the plurality of second switching elements 1B overlap when viewed in the x direction. Unlike this configuration, the plurality of first switching elements 1A and the plurality of second switching elements 1B do not have to overlap when viewed in the x direction.
- a plurality of semiconductor elements 1 (a plurality of first switching elements 1A and a plurality of second switching elements 1B), as shown in FIGS. 12 , a third main surface electrode 13 and a back surface electrode 15 .
- Each structure of the first main surface electrode 11 , the second main surface electrode 12 , the third main surface electrode 13 , and the rear surface electrode 15 which will be described below, is common to each semiconductor element 1 .
- the first principal surface electrode 11, the second principal surface electrode 12 and the third principal surface electrode 13 are provided on the element principal surface 10a.
- the first principal surface electrode 11, the second principal surface electrode 12 and the third principal surface electrode 13 are insulated by an insulating film (not shown).
- the back surface electrode 15 is provided on the element back surface 10b.
- the back surface electrode 15 covers the entire area (or substantially the entire area) of the element back surface 10b.
- the back surface electrode 15 is configured by Ag (silver) plating, for example.
- the first main surface electrode 11 is, for example, a gate electrode, and a drive signal (for example, gate voltage) for driving each semiconductor element 1 is input.
- the second principal-surface electrode 12 is, for example, a source electrode through which a source current flows.
- the third principal-surface electrode 13 is, for example, a source sense electrode and has the same potential as the second principal-surface electrode 12 .
- the same source current as the second main surface electrode 12 flows through the third main surface electrode 13 .
- Back surface electrode 15 is, for example, a drain electrode through which drain current flows.
- each semiconductor element 1 switches between a conductive state and a cutoff state according to the drive signal.
- the operation of switching between the conductive state and the cutoff state is called a switching operation.
- a forward current flows from the back surface electrode 15 (drain electrode) to the second main surface electrode 12 (source electrode) in the conducting state, and does not flow in the blocking state.
- Semiconductor device A1 converts a first power supply voltage (for example, DC voltage) into a second power supply voltage (for example, AC voltage) by the function of each semiconductor element 1 .
- a first power supply voltage is input (applied) between the power terminal 41 and the two power terminals 42
- a second power supply voltage is input (applied) to the two power terminals 43 .
- the semiconductor device A1 includes two thermistors 17, as shown in FIGS. Each thermistor 17 is used as a sensor for temperature detection.
- the support conductor 2 supports a plurality of semiconductor elements 1 (a plurality of first switching elements 1A and a plurality of second switching elements 1B).
- the support conductor 2 is bonded onto the support substrate 3 via a conductive bonding material 29 .
- Conductive bonding material 29 is, for example, solder, metal paste material, or sintered metal.
- the bonding between the support conductor 2 and the support substrate 3 may be performed by solid-phase diffusion instead of using the conductive bonding material 29 .
- the support conductor 2 has, for example, a rectangular shape in plan view.
- the supporting conductor 2 together with the first conducting member 71 and the second conducting member 72, constitutes the path of the main circuit current switched by the plurality of first switching elements 1A and the plurality of second switching elements 1B.
- the support conductor 2 includes a first conductive portion 2A and a second conductive portion 2B.
- Each of the first conductive portion 2A and the second conductive portion 2B is a plate-like member made of metal. This metal is Cu (copper) or a Cu alloy.
- Each of first conductive portion 2A and second conductive portion 2B has, for example, a rectangular shape in plan view.
- Each of the first conductive portion 2A and the second conductive portion 2B has, for example, an x-direction dimension of 15 mm or more and 25 mm or less, a y-direction dimension of 30 mm or more and 40 mm or less, and a z-direction dimension of 1.0 mm or more and 5 mm or less. 0 mm or less (preferably about 2.0 mm).
- These dimensions of the first conductive portion 2A and the second conductive portion 2B are not limited to the numerical examples described above, and can be changed as appropriate according to the specifications of the semiconductor device A1.
- the first conductive portion 2A and the second conductive portion 2B are each bonded to the support substrate 3 via a conductive bonding material 29, as shown in FIGS.
- a plurality of first switching elements 1A are bonded to the first conductive portion 2A via conductive bonding materials 19, respectively.
- a plurality of second switching elements 1B are bonded to the second conductive portion 2B via a conductive bonding material 19, respectively.
- the first conductive portion 2A and the second conductive portion 2B are spaced apart in the x direction as shown in FIGS. 3, 8, 11, 12 and 15 .
- the first conductive portion 2A is located in the x1 direction from the second conductive portion 2B.
- the first conductive portion 2A and the second conductive portion 2B overlap when viewed in the x direction.
- the support conductor 2 (each of the first conductive portion 2A and the second conductive portion 2B) has a main surface 201 and a back surface 202.
- the major surface 201 and the back surface 202 are spaced apart in the z-direction as shown in FIGS. 11-18.
- the main surface 201 faces the z2 direction
- the back surface 202 faces the z1 direction.
- the back surface 202 faces the support substrate 3 .
- the support substrate 3 supports the support conductor 2.
- the support substrate 3 is composed of, for example, a DBC (Direct Bonded Copper) substrate. Different from this configuration, the support substrate 3 may be composed of, for example, a DBA (Direct Bonded Aluminum) substrate.
- the support substrate 3 includes an insulating layer 31 , a first metal layer 32 and a second metal layer 33 .
- Insulating layer 31 is made of, for example, ceramic having excellent thermal conductivity. Such ceramics include, for example, AlN (aluminum nitride), SiN (silicon nitride), Al 2 O 3 (aluminum oxide) or ZTA (zirconia toughened alumina).
- the insulating layer 31 may be made of insulating resin instead of ceramic.
- the insulating layer 31 has, for example, a rectangular shape in plan view.
- the first metal layer 32 is formed on the upper surface of the insulating layer 31 (the surface facing the z2 direction).
- the constituent material of the first metal layer 32 includes, for example, Cu.
- the constituent material may contain Al (aluminum) instead of Cu.
- the first metal layer 32 includes a first portion 32A and a second portion 32B.
- the first portion 32A and the second portion 32B are spaced apart in the x-direction.
- the first portion 32A is located on the x1 direction side of the second portion 32B.
- the first portion 32A is joined to the first conductive portion 2A and supports the first conductive portion 2A.
- the second portion 32B is joined to the second conductive portion 2B and supports the second conductive portion 2B.
- Each of the first portion 32A and the second portion 32B has, for example, a rectangular shape in plan view.
- the second metal layer 33 is formed on the lower surface of the insulating layer 31 (the surface facing the z1 direction).
- the constituent material of the second metal layer 33 is the same as the constituent material of the first metal layer 32 .
- the lower surface of the second metal layer 33 (the surface facing the z1 direction) is exposed from the resin member 8, as shown in FIGS. Unlike this configuration, the lower surface of the second metal layer 33 may be covered with the resin member 8 .
- a heat dissipating member for example, a heat sink
- the second metal layer 33 overlaps both the first portion 32A and the second portion 32B in plan view.
- Each of the plurality of power terminals 41 to 43 is made of a plate-shaped metal plate.
- the constituent material of this metal plate is, for example, Cu or a Cu alloy.
- the semiconductor device A1 has one power terminal 41, two power terminals 42 and two power terminals 43. In the example shown in FIGS.
- the first power supply voltage is applied between the power terminal 41 and the two power terminals 42 .
- the power terminal 41 is, for example, a terminal (P terminal) connected to the positive pole of the DC power supply
- the two power terminals 42 are terminals (N terminals) connected to, for example, the negative pole of the DC power supply.
- the power terminal 41 may be the N terminal and the two power terminals 42 may each be the P terminal.
- the wiring inside the package may be appropriately changed according to the change in the polarity of the terminals.
- the second power supply voltage is applied to each of the two power terminals 43 .
- Each of the two power terminals 43 is an output terminal that outputs a voltage (second power supply voltage) obtained by voltage conversion by switching operations of the plurality of first switching elements 1A and the plurality of second switching elements 1B.
- Each of the power terminals 41 to 43 includes a portion covered with the resin member 8 and a portion exposed from the resin member 8 .
- the power terminal 41 is formed integrally with the first conductive portion 2A, as shown in FIGS. Unlike this configuration, the power terminal 41 may be separated from the first conductive portion 2A and conductively joined to the first conductive portion 2A.
- the power terminal 41 is positioned in the x2 direction from the plurality of semiconductor elements 1 and the first conductive portions 2A (supporting conductors 2), as shown in FIG. 8 and the like.
- the insulating layer 31 is electrically connected to the first conductive portion 2A, and is electrically connected to the rear surface electrodes 15 (drain electrodes) of the plurality of first switching elements 1A via the first conductive portion 2A.
- the power terminal 41 is an example of a "first power terminal".
- the two power terminals 42 are separated from the first conductive portion 2A, as shown in FIGS. 8 and 11, respectively.
- a second conductive member 72 is joined to each of the two power terminals 42 .
- Each of the two power terminals 42 is positioned in the x2 direction from the plurality of semiconductor elements 1 and the first conductive portions 2A (supporting conductors 2), as shown in FIG.
- Each of the two power terminals 42 is electrically connected to the second conductive member 72 and electrically connected to the second main surface electrodes 12 (source electrodes) of the plurality of second switching elements 1B via the second conductive member 72 .
- Each power terminal 42 is an example of a "second power terminal.”
- the power terminal 41 and the two power terminals 42 each protrude from the resin member 8 in the x2 direction.
- the power terminal 41 and the two power terminals 42 are spaced apart from each other.
- the two power terminals 42 are positioned opposite to each other with the power terminal 41 interposed therebetween in the y direction. 6, 7 and 9, the power terminal 41 and the two power terminals 42 overlap each other when viewed in the y-direction.
- Each of the two power terminals 43 is formed integrally with, for example, the second conductive portion 2B, as shown in FIGS. Unlike this configuration, each of the two power terminals 43 may be separated from the second conductive portion 2B and conductively joined to the second conductive portion 2B. Each of the two power terminals 43 is positioned in the x1 direction from the plurality of semiconductor elements 1 and the second conductive portions 2B (supporting conductors 2), as shown in FIG. Each power terminal 43 is electrically connected to the first conductive portion 2A, and is electrically connected to the back surface electrode 15 (drain) of each second switching element 1B via the first conductive portion 2A. Note that the number of power terminals 43 is not limited to two, and may be, for example, one or three or more. For example, if there is only one power terminal 43, it is desirable that it is connected to the central portion of the second conductive portion 2B in the y direction. Each power terminal 43 is an example of a "third power terminal".
- the plurality of control terminals 44 are pin-shaped terminals for controlling driving of the plurality of semiconductor elements 1 (the plurality of first switching elements 1A and the plurality of second switching elements 1B). Each of the plurality of control terminals 44 is, for example, a press-fit terminal.
- the z-direction dimension of each of the plurality of control terminals 44 is, for example, 10 mm or more and 30 mm or less (15.8 mm in one example).
- the dimension of the control terminal 44 in the z direction is the length from the lower end (z1 direction end) of the holder 441 described later to the upper end (z2 direction end) of the metal pin 442 described later.
- the plurality of control terminals 44 includes a plurality of first control terminals 45 and a plurality of second control terminals 46, as shown in FIGS.
- the multiple first control terminals 45 are used to control the multiple first switching elements 1A.
- the plurality of second control terminals 46 are used for controlling the plurality of second switching elements 1B.
- the plurality of first control terminals 45 are arranged at intervals in the y direction, as shown in FIG.
- the plurality of first control terminals 45 are fixed to the signal board 5 (first signal board 5A).
- the plurality of first control terminals 45 are positioned between the plurality of first switching elements 1A and the plurality of power terminals 41, 42 in the x-direction, as shown in FIGS.
- the plurality of first control terminals 45 as shown in FIGS. 1 and 4, includes a first drive terminal 45A and a plurality of first detection terminals 45B-45E.
- the first drive terminal 45A is a terminal (gate terminal) for inputting drive signals to the plurality of first switching elements 1A.
- a first drive signal for driving the plurality of first switching elements 1A is input to the first drive terminal 45A (for example, a gate voltage is applied).
- the first detection terminal 45B is a terminal (source sense terminal) for detecting source signals of the plurality of first switching elements 1A.
- a first detection signal for detecting the conductive state of the plurality of first switching elements 1A is output to the first detection terminal 45B.
- the voltage applied to the second main surface electrode 12 (source electrode) of the first switching element 1A (voltage corresponding to the source current) is detected as the first detection signal from the first detection terminal 45B.
- the first detection terminal 45C and the first detection terminal 45D are terminals that are electrically connected to one of the two thermistors 17, respectively.
- the one thermistor 17 is mounted on a first signal board 5A, which will be described later.
- the first detection terminal 45E is a terminal (drain sense terminal) for detecting drain signals of the plurality of first switching elements 1A.
- a voltage (a voltage corresponding to the drain current) applied to each back surface electrode 15 (drain electrode) of the plurality of first switching elements 1A is detected from the first detection terminal 45E.
- the plurality of second control terminals 46 are arranged at intervals in the y direction, as shown in FIG.
- the plurality of second control terminals 46 are fixed to the signal board 5 (second signal board 5B).
- the plurality of second control terminals 46 are positioned between the plurality of second switching elements 1B and the plurality of power terminals 43 in the x-direction, as shown in FIGS.
- the plurality of second control terminals 46 as shown in FIGS. 1 and 4, includes a second drive terminal 46A and a plurality of second detection terminals 46B-46E.
- the second drive terminal 46A is a terminal (gate terminal) for inputting drive signals for the plurality of second switching elements 1B.
- a second drive signal for driving the plurality of second switching elements 1B is input to the second drive terminal 46A (for example, a gate voltage is applied).
- the second detection terminal 46B is a terminal (source sense terminal) for detecting source signals of the plurality of second switching elements 1B.
- a plurality of second detection terminals 46B output a second detection signal for detecting the conductive state of the plurality of second switching elements 1B.
- the voltage applied to the second main surface electrode 12 (source electrode) of the second switching element 1B (voltage corresponding to the source current) is detected as the second detection signal from the second detection terminal 46B.
- the second detection terminal 46C and the second detection terminal 46D are terminals that are electrically connected to the other of the two thermistors 17, respectively.
- the other thermistor 17 is mounted on a second signal board 5B, which will be described later.
- the second detection terminal 46E is a terminal (drain sense terminal) for detecting drain signals of the plurality of second switching elements 1B.
- a voltage (a voltage corresponding to the drain current) applied to each back surface electrode 15 (drain electrode) of the plurality of second switching elements 1B is detected from the second detection terminal 46E.
- the plurality of control terminals 44 (the plurality of first control terminals 45 and the plurality of second control terminals 46) each include a holder 441 and a metal pin 442.
- the holder 441 is made of a conductive material. As shown in FIGS. 13 and 14, the holder 441 is bonded to the signal substrate 5 (first metal layer 52 described below) via a conductive bonding material 449. As shown in FIG.
- the holder 441 includes a tubular portion, an upper flange, and a lower flange. The upper brim portion is connected to the upper end portion of the tubular portion in the z direction (z2 direction), and the lower end brim portion is connected to the lower end portion of the tubular portion in the z direction (z1 direction).
- a metal pin 442 is inserted through at least the upper brim portion and the tubular portion of the holder 441 .
- the holder 441 is covered with the resin member 8 .
- the metal pin 442 is a rod-shaped member extending in the z direction.
- the metal pin 442 is supported by being press-fitted into the holder 441 .
- the metal pin 442 is electrically connected to the signal substrate 5 (first metal layer 52 described later) through at least the holder 441 .
- the metal pin 442 is a conductive It is electrically connected to the signal substrate 5 also through the bonding material 449 .
- the signal board 5 supports a plurality of control terminals 44.
- the signal board 5 is interposed between the support conductor 2 and each control terminal 44 in the z-direction.
- the thickness (dimension in the thickness direction z) of the signal substrate 5 is, for example, 0.5 mm or more and 1.0 mm or less.
- the dimension in the thickness direction z of each control terminal 44 is 20 to 30 times the thickness of the signal board 5 (dimension in the thickness direction z).
- the signal board 5 includes a first signal board 5A and a second signal board 5B.
- the first signal board 5A is arranged on the first conductive portion 2A and supports a plurality of first control terminals 45, as shown in FIGS. As shown in FIGS. 12, 13 and 15, the first signal board 5A is adhered to the first conductive portion 2A via the adhesive layer 6 (first adhesive 6A).
- the second signal board 5B is arranged on the second conductive portion 2B and supports a plurality of second control terminals 46, as shown in FIGS. As shown in FIGS. 12, 14 and 15, the second signal board 5B is adhered to the second conductive portion 2B via the adhesive layer 6 (second adhesive 6B).
- the signal boards 5 are composed of, for example, DBC boards.
- the signal substrate 5 has an insulating substrate 51, a first metal layer 52 and a second metal layer 53 which are laminated together.
- the insulating substrate 51, first metal layer 52 and second metal layer 53 described below are common to the first signal substrate 5A and the second signal substrate 5B unless otherwise specified.
- Insulating substrate 51 is made of ceramic, for example. AlN, SiN, Al 2 O 3 or the like is used as such ceramics.
- the insulating substrate 51 has, for example, a rectangular shape in plan view.
- the insulating substrate 51 as shown in FIGS. 13 and 14, has a main surface 51a and a back surface 51b.
- the main surface 51a and the back surface 51b are spaced apart in the z direction.
- the main surface 51a faces the z2 direction
- the back surface 51b faces the z1 direction.
- the back surface 51b faces the support conductor 2 .
- the second metal layer 53 is formed on the back surface 51b of the insulating substrate 51, as shown in FIGS.
- the second metal layer 53 is adhered to the supporting conductor 2 via the adhesive layer 6 .
- the second metal layer 53 of the first signal substrate 5A is bonded to the first conductive portion 2A via a first adhesive 6A, which will be described later, and the second metal layer 53 of the second signal substrate 5B is bonded to the second adhesive. It is adhered to the second conductive portion 2B via 6B.
- the second metal layer 53 is made of Cu or a Cu alloy, for example.
- the second metal layer 53 is an example of a "metal layer".
- the first metal layer 52 is formed on the main surface 51a of the insulating substrate 51, as shown in FIGS. Each of the plurality of control terminals 44 is erected on the first metal layer 52 . A plurality of first control terminals 45 are erected on the first metal layer 52 of the first signal board 5A, and a plurality of second control terminals 46 are erected on the first metal layer 52 of the second signal board 5B. be done.
- the first metal layer 52 is made of Cu or a Cu alloy, for example. As shown in FIG. 8, the first metal layer 52 includes a plurality of wiring layers 521-526. A plurality of wiring layers 521 to 526 are separated from each other and insulated.
- the wiring layer 521 is connected to a plurality of wires 73 and is electrically connected to the first main surface electrode 11 (gate electrode) of each semiconductor element 1 via each wire 73 .
- the wiring layer 521 of the first signal substrate 5A is electrically connected to the first main surface electrodes 11 of the first switching elements 1A through the wires 73.
- the wiring layer 521 of the second signal substrate 5B is electrically connected to the first main surface electrodes 11 of the second switching elements 1B through the wires 73. As shown in FIG.
- the wiring layer 526 is connected to a plurality of wires 75 and electrically connected to the wiring layer 521 via each wire 75 .
- the wiring layer 526 of the first signal substrate 5A is connected to the first main surface electrode 11 (gate electrode) of each first switching element 1A via each wire 75, the wiring layer 521 of the first signal substrate 5A and each wire 73. conduct.
- the wiring layer 526 of the second signal substrate 5B is connected to the first main surface electrode 11 (gate electrode) of each second switching element 1B via each wire 75, the wiring layer 521 of the second signal substrate 5B and each wire 73. conduct.
- a first drive terminal 45A is joined to the wiring layer 526 of the first signal board 5A
- a second drive terminal 46A is joined to the wiring layer 526 of the second signal board 5B.
- the wiring layer 522 is connected to a plurality of wires 74 and is electrically connected to the third main surface electrode 13 (source sense electrode) of each semiconductor element 1 via each wire 74 .
- the wiring layer 522 of the first signal substrate 5A is electrically connected to the third main surface electrode 13 (source sense electrode) of each first switching element 1A through each wire 74 .
- the wiring layer 522 of the second signal substrate 5B is electrically connected to the third main surface electrode 13 (source sense electrode) of each second switching element 1B through each wire 74 .
- a first detection terminal 45B is joined to the wiring layer 522 of the first signal board 5A, and a second detection terminal 46B is joined to the wiring layer 522 of the second signal board 5B.
- the thermistor 17 is joined to the wiring layer 523 and the wiring layer 524, as shown in FIG. As shown in FIG. 8, the first detection terminal 45C and the first detection terminal 45D are joined to the wiring layer 523 and the wiring layer 524 of the first signal board 5A, respectively. A second detection terminal 46C and a second detection terminal 46D are joined to the wiring layer 523 and the wiring layer 524 of the second signal substrate 5B, respectively.
- Each wire 76 is joined to the wiring layer 525 and is electrically connected to the supporting conductor 2 via each wire 76 .
- the wiring layer 525 of the first signal board 5A is electrically connected to the first conductive portion 2A through the wire 76.
- the wiring layer 525 of the second signal board 5B is electrically connected to the second conductive portion 2B through the wire 76.
- a first detection terminal 45E is joined to the wiring layer 525 of the first signal substrate 5A.
- a second detection terminal 46E is joined to the wiring layer 525 of the second signal substrate 5B.
- the signal board 5 may be a printed board such as a glass epoxy board instead of the DBC board. At least the wiring layers 521 to 526 are formed on the printed circuit board.
- the adhesive layer 6 bonds the signal substrate 5 and the supporting conductor 2 together.
- the adhesive layer 6 is interposed between the signal substrate 5 and the support conductors 2 in the z-direction.
- the adhesive layer 6 overlaps the signal substrate 5 in plan view.
- the thickness (dimension in the z direction) of the adhesive layer 6 is, for example, 20 ⁇ m or more and 200 ⁇ m or less (85 ⁇ m in one example).
- the adhesive layer 6 includes a first adhesive 6A and a second adhesive 6B, as shown in FIGS.
- the first adhesive 6A bonds the first signal substrate 5A and the first conductive portion 2A.
- the first adhesive 6A is interposed between the first signal substrate 5A and the first conductive portion 2A, and overlaps the first signal substrate 5A in plan view.
- the second adhesive 6B bonds the second signal substrate 5B and the second conductive portion 2B. It is interposed between the second signal board 5B and the second conductive portion 2B, and overlaps the second signal board 5B in plan view.
- the adhesive layer 6 (first adhesive body 6A and second adhesive body 6B, respectively) includes an insulating layer 61 and a pair of adhesive layers 62 and 63, as shown in FIGS.
- the insulating layer 61 and the pair of adhesive layers 62 and 63 described below are common to the first adhesive body 6A and the second adhesive body 6B unless otherwise specified.
- the insulating layer 61 is made of a resin material. Considering heat resistance and insulation, the resin material is preferably polyimide, for example.
- the insulating layer 61 of the first adhesive 6A electrically insulates the first signal substrate 5A and the first conductive portion 2A
- the insulating layer 61 of the second adhesive 6B electrically isolates the second signal substrate 5B from the second conductive portion 2A. It electrically insulates from the part 2B.
- Insulating layer 61 is, for example, film-like.
- the insulating layer 61 may be sheet-like or plate-like instead of film-like. In this disclosure, a sheet is as soft as a film, but thicker than the film.
- the plate shape is harder than films and sheets, less bendable, and thicker than sheets.
- the definitions of film, sheet, and plate are not limited to these, and may be appropriately changed according to conventional classification.
- the thickness (dimension in the thickness direction z) of the insulating layer 61 is 0.1% or more and 1.0% or less with respect to the dimension in the thickness direction z of each control terminal 44 .
- the thickness of the insulating layer 61 (dimension in the thickness direction z) is 20% or more and 75% or less of the thickness of the adhesive layer 6 (dimension in the thickness direction z).
- the thickness (dimension in the z direction) of the insulating layer 61 is, for example, 10 ⁇ m or more and 150 ⁇ m or less (25 ⁇ m in one example).
- the insulating layer 61 includes a main surface 61a and a back surface 61b.
- the main surface 61a and the back surface 61b are spaced apart in the z direction.
- the main surface 61a faces the z2 direction (upward in the z direction), and the back surface 61b faces in the z1 direction (downward in the z direction).
- a pair of adhesive layers 62 and 63 are formed on both sides of the insulating layer 61 in the z direction.
- Each of the pair of adhesive layers 62 and 63 is made of, for example, a silicone adhesive or an acrylic adhesive.
- Each thickness (dimension in the thickness direction z) of the pair of adhesive layers 62 and 63 is 10% or more and 150% or less of the thickness (dimension in the thickness direction z) of the insulating layer 61 .
- Each thickness (dimension in the z direction) of the pair of adhesive layers 62 and 63 is, for example, 5 ⁇ m or more and 50 ⁇ m or less (30 ⁇ m in one example).
- the adhesive layer 62 is formed on the main surface 61a, as shown in FIGS.
- the adhesive layer 62 is interposed between the insulating layer 61 and the signal substrate 5 in the z-direction.
- the adhesive layer 62 of the first adhesive 6A is interposed between the insulating layer 61 of the first adhesive 6A and the first signal substrate 5A in the z direction, and the adhesive layer 62 of the second adhesive 6B is interposed in the z direction. , it is interposed between the insulating layer 61 of the second adhesive 6B and the second signal substrate 5B.
- the adhesive layer 63 is formed on the back surface 61b as shown in FIGS.
- the adhesive layer 63 is interposed between the insulating layer 61 and the support conductor 2 in the z-direction.
- the adhesive layer 63 of the first adhesive 6A is interposed between the insulating layer 61 of the first adhesive 6A and the first conductive portion 2A in the z-direction, and the adhesive layer 63 of the second adhesive 6B is interposed in the second It is interposed between the insulating layer 61 of the adhesive 6B and the second conductive portion 2B.
- the adhesive layer 6 of the present disclosure is like a double-sided adhesive tape, for example.
- the adhesive layer 6 is attached to the support conductor 2 after being attached to the signal substrate 5 to which the plurality of control terminals 44 are bonded, for example.
- the adhesive layer 6 does not have to be a double-sided adhesive tape, except for a material such as solder that temporarily melts when two members are bonded together.
- the adhesive layer 6 may be any material as long as it can adhere the two members together without being melted.
- the first conducting member 71 and the second conducting member 72 together with the supporting conductor 2, provide paths for the main circuit current switched by the plurality of semiconductor elements 1 (the plurality of first switching elements 1A and the plurality of second switching elements 1B).
- the first conductive member 71 and the second conductive member 72 are spaced apart in the z2 direction from the main surfaces 201 of the first conductive portion 2A and the second conductive portion 2B, and overlap the main surfaces 201 in plan view.
- Each of first conduction member 71 and second conduction member 72 is made of, for example, a metal plate.
- the metal is for example Cu or a Cu alloy.
- the first conductive member 71 and the second conductive member 72 are appropriately bent.
- the first conducting member 71 conducts the plurality of first switching elements 1A and the second conducting portion 2B. As shown in FIGS. 5 and 8, the first conductive member 71 is connected to the second main surface electrode 12 (source electrode) of each first switching element 1A and the second conductive portion 2B to The second main surface electrode 12 of 1A and the second conductive portion 2B are electrically connected.
- the first conductive member 71 constitutes a path of main circuit current switched by the plurality of first switching elements 1A.
- the first conduction member 71 includes a main portion 711, a plurality of first connection ends 712 and a plurality of second connection ends 713, as shown in FIGS.
- the main portion 711 is positioned between the plurality of first switching elements 1A and the second conductive portion 2B in the x direction.
- the main portion 711 is a strip-shaped portion extending in the y direction.
- the main portion 711 is positioned in the z2 direction from the plurality of first connection ends 712 and the plurality of second connection ends 713 .
- the main portion 711 is formed with a plurality of openings 711a.
- Each of the plurality of openings 711a is a through hole penetrating through the first conduction member 71 (main portion 711) in the z direction.
- the plurality of openings 711a are arranged at intervals in the y direction.
- the plurality of openings 711a do not overlap the second conduction member 72 in plan view.
- the plurality of openings 711a are formed on the upper side (z2 direction side) and the lower side (z1 direction side) in the vicinity of the main portion 711 (first conductive member 71) when injecting a fluid resin material to form the resin member 8. side) to facilitate the flow of the resin material.
- the shape of the main portion 711 is not limited to this configuration, and for example, the opening 711a may not be formed.
- the plurality of first connection end portions 712 and the plurality of second connection end portions 713 are respectively connected to the main portion 711 and arranged to face the plurality of first switching elements 1A. As shown in FIG. 12 , the plurality of first connection ends 712 are respectively joined to the respective second main surface electrodes 12 of the plurality of first switching elements 1A via conductive joint materials 719 . Each of the plurality of second connecting end portions 713 is joined to the second conductive portion 2B via a conductive joining material 719 .
- the conductive bonding material 719 is, for example, solder, metal paste material, or sintered metal. In the examples shown in FIGS. 8, 12, 13 and 17, each first connection end 712 is formed with an opening 712a.
- Each opening 712a is preferably formed so as to overlap the central portion of each first switching element 1A in plan view. 12, 13 and 17, each opening 712a is, for example, a through hole penetrating through each first connection end 712 in the z direction. The opening 712a is used when positioning the first conducting member 71 with respect to the supporting conductor 2, for example.
- the plurality of first connection end portions 712 and the plurality of second connection end portions 713 are each connected to each other by the main portion 711, but unlike this configuration, the main portion 711 is connected to a plurality of sites. It may be divided, and the divided portions connect each of the plurality of first connection end portions 712 and each of the plurality of second connection end portions 713 . In other words, one first conductive member 71 may be provided for each of the plurality of first switching elements 1A.
- the second conductive member 72 is connected to the second main surface electrode 12 (source electrode) of each second switching element 1B and the plurality of power terminals 42, and is connected to the power terminals 42 of each second switching element 1B.
- the second principal surface electrode 12 and each power terminal 42 are electrically connected.
- the second conductive member 72 constitutes a path of main circuit current switched by the plurality of second switching elements 1B.
- the second conductive member 72 has a maximum dimension in the x direction of, for example, 25 mm or more and 40 mm or less, and a maximum dimension in the y direction of, for example, 30 mm or more and 45 mm or less.
- the second conducting member 72 includes a pair of first wiring portion 721 , second wiring portion 722 , third wiring portion 723 and fourth wiring portion 724 .
- each of the pair of first wiring portions 721 is connected to one of the pair of power terminals 42 , and the other of the pair of first wiring portions 721 is connected to the other of the pair of power terminals 42 .
- each of the pair of first wiring portions 721 has a strip shape extending in the x direction in plan view.
- the pair of first wiring portions 721 are spaced apart in the y direction and arranged parallel (or substantially parallel).
- each of the pair of first wiring portions 721 includes a first end portion 721a.
- Each first end portion 721a is an end portion of each first wiring portion 721 on the x2 direction side. As shown in FIG.
- each first end portion 721a is positioned in the z1 direction from the other portion of each first wiring portion 721. As shown in FIG. As shown in FIG. 11, each first end 721a is joined to each of the pair of power terminals 42 via a conductive joining material 729. As shown in FIG. Conductive bonding material 729 is, for example, solder, metal paste, or sintered metal. In the example shown in FIG. 5, each first wiring portion 721 is formed with a plurality of notches. The plurality of cutouts formed in each first wiring portion 721 has, for example, a semicircular shape in plan view, and overlaps the support conductor 2 in plan view.
- the second wiring portion 722 is connected to both of the pair of first wiring portions 721 as shown in FIG.
- the second wiring portion 722 is sandwiched between the pair of first wiring portions 721 in the y direction.
- the second wiring portion 722 has a strip shape extending in the y direction in plan view.
- the second wiring portion 722 overlaps the plurality of second switching elements 1B, as shown in FIG.
- the second wiring portion 722 is connected to each second switching element 1B.
- the second wiring portion 722 has a plurality of concave regions 722a. As shown in FIG. 16, each of the plurality of recessed regions 722a protrudes downward in the z direction (z1 direction) from other portions of the second wiring portion 722. As shown in FIG.
- each recessed region 722a of the second wiring portion 722 and each second main surface electrode 12 (source electrode) of the plurality of second switching elements 1B are bonded via a conductive bonding material 729 as shown in FIG. be done.
- each recessed area 722a is formed with a slit. The slit is located in the center of each recessed area 722a in the y direction and extends in the x direction.
- Each recessed area 722a consists of two parts separated in the y-direction with the slit therebetween. Note that slits may not be formed in each concave region 722a.
- the third wiring portion 723 is connected to both of the pair of first wiring portions 721 as shown in FIG.
- the first wiring portion 721 is sandwiched between a pair of first wiring portions 721 in the y direction.
- the third wiring portion 723 has a strip shape extending in the y direction in plan view.
- the third wiring portion 723 is separated from the second wiring portion 722 in the x direction.
- the third wiring portion 723 is arranged parallel (or substantially parallel) to the second wiring portion 722 .
- the third wiring portion 723 overlaps the plurality of first switching elements 1A in plan view.
- the third wiring portion 723 is located above each first connection end portion 712 of the first conduction member 71 (z2 direction) in the z direction.
- the third wiring portion 723 overlaps the first connection end portion 712 in plan view.
- Each of the plurality of fourth wiring portions 724 is connected to both the second wiring portion 722 and the third wiring portion 723 as shown in FIG. Each fourth wiring portion 724 is sandwiched between the second wiring portion 722 and the third wiring portion 723 in the x direction.
- Each fourth wiring portion 724 has a strip shape extending in the x direction in plan view.
- the plurality of fourth wiring portions 724 are spaced apart in the y direction and arranged parallel (or substantially parallel) in a plan view. Also, the plurality of fourth wiring portions 724 are arranged parallel (or substantially parallel) to the pair of first wiring portions 721 .
- each of the plurality of fourth wiring portions 724 One end in the x direction of each of the plurality of fourth wiring portions 724 is connected to a portion of the third wiring portion 723 that overlaps between two first switching elements 1A that are adjacent in the y direction in plan view.
- the other end in the x direction of each of the plurality of fourth wiring portions 724 is connected to a portion of the second wiring portion 722 that overlaps between two second switching elements 1B adjacent in the y direction in plan view.
- Each of the plurality of fourth wiring portions 724 overlaps, for example, the first conduction member 71 (main portion 711).
- Each of the plurality of wires 73-76 is, for example, a bonding wire, and conducts two parts separated from each other.
- the constituent material of each wire 73-76 includes, for example, Au (gold), Al or Cu.
- a plurality of wires 73 are joined to the wiring layer 521 and the first main surface electrode 11 (gate electrode) of each semiconductor element 1 to conduct them. As shown in FIG. 8, the plurality of wires 73 are connected to the wiring layer 521 of the first signal substrate 5A and the first main surface electrodes 11 of the first switching elements 1A, and the wiring of the second signal substrate 5B. layer 521 and bonded to the first main surface electrode 11 of each second switching element 1B.
- a plurality of wires 74 are joined to the wiring layer 522 and the third main surface electrode 13 (source sense electrode) of each semiconductor element 1 to conduct them. As shown in FIG. 8, the plurality of wires 74 are connected to the wiring layer 522 of the first signal substrate 5A and the third main surface electrodes 13 of the first switching elements 1A, and the wiring of the second signal substrate 5B. layer 522 and bonded to the third main surface electrode 13 of each second switching element 1B. A plurality of wires 74 are joined to each second main surface electrode 12 instead of each third main surface electrode 13 in a configuration in which each semiconductor element 1 does not have a third main surface electrode 13 .
- a plurality of wires 75 are joined to the wiring layer 521 and the wiring layer 526 to conduct them. As shown in FIG. 8, the plurality of wires 75 are connected to the wiring layer 521 of the first signal board 5A and the wiring layer 526 of the first signal board 5A, and the wiring layer 521 of the second signal board 5B. Also included are those joined to the wiring layer 526 of the second signal board 5B.
- a plurality of wires 76 are joined to the wiring layer 525 and the supporting conductor 2 to conduct them. As shown in FIG. 8, the plurality of wires 76 are connected to the wiring layer 525 of the first signal board 5A and the first conductive section 2A, and connected to the wiring layer 525 of the second signal board 5B and the second conductive section. 2B and those joined to.
- the resin member 8 is a sealing material that protects the plurality of semiconductor elements 1 (the plurality of first switching elements 1A and the plurality of second switching elements 1B).
- the resin member 8 includes the plurality of semiconductor elements 1 (the plurality of first switching elements 1A and the plurality of second switching elements 1B), the support conductors 2 (the first conductive portions 2A and the second conductive portions 2B), and the support substrate 3. (excluding the lower surface of the second metal layer 33), some of the plurality of power terminals 41 to 43, some of the plurality of control terminals 44, and the signal board 5 (the first signal board 5A and the second signal board).
- Resin member 8 is made of, for example, black epoxy resin.
- the resin member 8 is formed by molding, for example.
- the resin member 8 has, for example, a dimension in the x direction of approximately 35 mm to 60 mm, a dimension in the y direction of approximately 35 mm to 50 mm, and a dimension in the z direction of approximately 4 mm to 15 mm. These dimensions are the largest part sizes along each direction.
- the resin member 8 has a resin main surface 81, a resin back surface 82 and a plurality of resin side surfaces 831-834.
- the resin main surface 81 and the resin back surface 82 are spaced apart in the z-direction as shown in FIGS.
- the resin main surface 81 faces the z2 direction
- the resin back surface 82 faces the z1 direction.
- a plurality of control terminals 44 protrude from the resin main surface 81 .
- the resin back surface 82 has a frame shape surrounding the lower surface of the second metal layer 33 of the support substrate 3 in plan view. The lower surface of the second metal layer 33 is exposed from the resin back surface 82 and is flush with the resin back surface 82, for example.
- Each of the plurality of resin side surfaces 831 to 834 is connected to both the resin main surface 81 and the resin back surface 82 and sandwiched between them in the z direction.
- the resin side surface 831 and the resin side surface 832 are spaced apart in the x direction.
- the resin side surface 831 faces the x1 direction, and the resin side surface 832 faces the x2 direction.
- Two power terminals 43 protrude from the resin side surface 831
- a plurality of power terminals 41 and 42 protrude from the resin side surface 832 .
- the resin side surface 833 and the resin side surface 834 are spaced apart in the y direction.
- the resin side surface 833 faces the y1 direction
- the resin side surface 834 faces the y2 direction.
- a plurality of recesses 832a are formed on the resin side surface 832 as shown in FIG.
- Each recess 832a is a portion recessed in the x direction in plan view.
- the plurality of recesses 832a are formed between the power terminal 41 and one of the two power terminals 42 and between the power terminal 41 and the other of the two power terminals 42 in plan view. There is.
- the plurality of recesses 832a divide the creepage distance between the power terminal 41 and one of the two power terminals 42 along the resin side surface 832 and the creepage distance between the power terminal 41 and the other of the two power terminals 42 along the resin side surface 832. designed to be enlarged.
- the resin member 8 has a plurality of first protrusions 851, a plurality of second protrusions 852, and resin voids 86, as shown in FIGS.
- Each of the plurality of first protrusions 851 protrudes from the resin main surface 81 in the z direction.
- the plurality of first protrusions 851 are arranged near the four corners of the resin member 8 in plan view.
- a first protruding end face 851a is formed at the tip of each first protruding portion 851 (the end in the z2 direction).
- Each first projecting end surface 851 a of the plurality of first projecting portions 851 is parallel (or substantially parallel) to the resin main surface 81 .
- the plurality of first projecting end faces 851a are arranged on the same plane (xy plane).
- Each first projecting portion 851 has, for example, a bottomed hollow truncated cone shape.
- the plurality of first protrusions 851 are used as spacers when the semiconductor device A1 is mounted on a control circuit board or the like.
- the control circuit board is included in a device that uses power generated by the semiconductor device A1.
- each of the plurality of first protrusions 851 has a recess 851b and an inner wall surface 851c formed in the recess 851b.
- the shape of each first projecting portion 851 may be columnar, and is preferably columnar. It is preferable that the concave portion 851b has a columnar shape, and the inner wall surface 851c has a single perfect circle shape in a plan view.
- the semiconductor device A1 may be fixed to the control circuit board or the like by a method such as screwing.
- the inner wall surface 851c of the recessed portion 851b of each first projecting portion 851 can be formed with a female screw thread.
- An insert nut or the like may be embedded in the concave portion 851b of each first projecting portion 851 .
- the plurality of second protrusions 852 protrude from the resin main surface 81 in the z-direction as shown in FIG. 12 and the like.
- the plurality of second protrusions 852 overlap the plurality of control terminals 44 in plan view.
- Each metal pin 442 of the plurality of control terminals 44 protrudes from each second protrusion 852 .
- Each second protrusion 852 has a truncated cone shape.
- Each second protrusion 852 covers the holder 441 and part of the metal pin 442 at each control terminal 44 .
- the resin void 86 extends from the resin principal surface 81 to the principal surfaces 201 of the first conductive portion 2A and the second conductive portion 2B in the z direction.
- the resin void 86 is formed in a tapered shape, and the cross-sectional area of the plane orthogonal to the z-direction decreases from the resin main surface 81 toward each main surface 201 in the z-direction.
- the resin void portion 86 is formed when the resin member 8 is molded, and is a portion where the resin member 8 is not formed during the molding.
- the resin void portion 86 is formed, for example, because it was not filled with a fluid resin material because it was occupied by a pressing member during molding of the resin member 8 .
- the pressing member applies a pressing force to each main surface 201 during molding, and is inserted through the notch formed in each first wiring portion 721 of the second conduction member 72 .
- the support conductor 2 (the first conductive portion 2A and the second conductive portion 2B) can be pressed by the pressing member without interfering with the second conductive member 72, and the support substrate 3 to which the support conductor 2 is joined can be secured. Warping can be suppressed.
- the semiconductor device A1 includes a resin-filled portion 88, as shown in FIG.
- the resin filling portion 88 fills the resin void portion 86 so as to fill the resin void portion 86 .
- Resin-filled portion 88 is made of, for example, an epoxy resin like resin member 8 , but may be made of a resin material different from that of resin member 8 .
- the actions and effects of the semiconductor device A1 are as follows.
- the semiconductor device A1 includes control terminals 44, a signal substrate 5 including wiring layers 521 to 526, a support conductor 2, and an adhesive layer 6. Each control terminal 44 is fixed to each wiring layer 521-526.
- the support conductor 2 supports the wiring layers 521 to 526 with the insulating substrate 51 interposed therebetween.
- An adhesive layer 6 is interposed between the support conductor 2 and the signal substrate 5 .
- the adhesive layer 6 includes an insulating layer 61 that electrically insulates the support conductor 2 and the signal substrate 5 . In this configuration, the signal substrate 5 is supported by the supporting conductors 2 via the adhesive layer 6 .
- solder is interposed between the signal substrate 5 and the support conductor 2. . Since the solder is temporarily melted during the joining process, it is difficult to control the thickness of the solder (dimension in the z direction), and the thickness of the solder may vary. As a result, the signal board 5 assumes an inclined posture with respect to the support conductor 2 . On the other hand, in the semiconductor device A1, an adhesive layer 6 different from solder is interposed between the signal substrate 5 and the support conductor 2, thereby suppressing the thickness variation as described above. Accordingly, it is possible to prevent the signal substrate 5 from being tilted with respect to the support conductor 2 .
- the semiconductor device A1 can suppress defective connection of each control terminal 44 and variation in the position of each control terminal 44, so that reliability can be improved.
- each control terminal 44 includes a holder 441 and a metal pin 442.
- the holder 441 is bonded to the first metal layer 52 (wiring layers 521 to 526) of the signal board 5, and the metal pin 442 extends along the z direction. That is, each control terminal 44 is configured as a pin-shaped terminal extending in the z-direction. In this configuration, the inclination of the tip of each metal pin 442 with respect to the support conductor 2 is greater than the inclination of the signal board 5 with respect to the support conductor 2 . In particular, when the dimension in the thickness direction z of each control terminal 44 is 20 times or more the dimension in the thickness direction z of the signal board 5, the inclination of the tip of the metal pin 442 becomes more pronounced.
- each control terminal 44 is a pin-shaped terminal extending in the z-direction
- the semiconductor device A1 can be configured such that each signal terminal extends along a plane perpendicular to the z-direction as in Patent Document 1, for example. In comparison, miniaturization in plan view is possible. That is, the semiconductor device A1 is suitable for miniaturization in plan view.
- the insulating layer 61 of the adhesive layer 6 is film-shaped, and a pair of adhesive layers 62 and 63 are formed on both sides of the insulating layer 61.
- the adhesive layer 6 is composed of, for example, double-sided adhesive tape. Therefore, in the manufacturing process of the semiconductor device A1, the signal substrate 5 can be easily bonded to the support conductor 2 because the signal substrate 5 can be attached to the support conductor 2 using the adhesive layer 6 .
- the adhesive layer 6 is configured to use the film-like insulating layer 61 as a base material, it is possible to reduce the dimension of the adhesive layer 6 in the z direction. As a result, even if the thickness of the adhesive layer 6 varies, the variation is small. Therefore, since variations in the thickness of the adhesive layer 6 are suppressed, the semiconductor device A1 can suppress poor bonding of the control terminals 44 and variation in the positions of the control terminals 44 .
- the insulating layer 61 of the adhesive layer 6 is made of polyimide, for example.
- heat is generated by switching operations of the plurality of semiconductor elements 1.
- FIG. Heat from each semiconductor element 1 is transmitted through the support conductor 2 .
- heat transfer from the support conductor 2 to the signal substrate 5 can be suppressed due to the heat insulating properties of the insulating layer 61 .
- the semiconductor device A1 can suppress the transmission of heat from each semiconductor element 1 to the wires 73 to 76 joined to the signal substrate 5 (each wiring layer 521 to 526). In other words, the semiconductor device A1 can reduce the heat load on the wires 73-76.
- the plurality of first control terminals 45 are fixed to the wiring layers 521 to 526 of the first signal board 5A and supported by the first conductive portion 2A via the first signal board 5A.
- the plurality of first control terminals 45 are arranged on the x2 direction side of the plurality of first switching elements 1A.
- the plurality of second control terminals 46 are fixed to the wiring layers 521 to 526 of the second signal board 5B and supported by the second conductive portion 2B via the second signal board 5B.
- the plurality of second control terminals 46 are arranged on the x1 direction side of the plurality of second switching elements 1B.
- the plurality of first control terminals 45 and the plurality of second control terminals 46 are arranged at intervals in the y direction.
- the plurality of first control terminals 45 and the plurality of second control terminals 46 are connected to the plurality of first switching elements 1A forming the upper arm circuit and the plurality of second switching elements 1B forming the lower arm circuit, respectively.
- the semiconductor device A1 is preferable for miniaturization while reducing the parasitic inductance component.
- FIG. 19 shows a semiconductor device A2 according to the first modified example.
- the semiconductor device A2 differs from the semiconductor device A1 in that the signal substrates 5 (each of the first signal substrate 5A and the second signal substrate 5B) do not include the second metal layer 53. different in
- the insulating substrate 51 is adhered to the supporting conductor 2 by the adhesive layer 6. That is, the insulating substrate 51 of the first signal substrate 5A is bonded to the first conductive portion 2A by the first adhesive 6A, and the insulating substrate 51 of the second signal substrate 5B is bonded to the second conductive portion 2B by the second adhesive 6B. It is
- each wiring layer 521 to 526 is attached to the support conductor 2 by interposing an adhesive layer 6 different from solder between the signal substrate 5 and the support conductor 2. It is possible to suppress the tilted posture. Therefore, the semiconductor device A2 can suppress defective connection of each control terminal 44 and variation in the position of each control terminal 44, so that reliability can be improved.
- the signal substrate 5 is adhered to the support conductor 2 by the adhesive layer 6, similar to the semiconductor device A1.
- the adhesive layer 6 Similar to the semiconductor device A1.
- the signal substrate 5 is supported if the signal substrate 5 does not include the second metal layer 53 as in the semiconductor device A1. It was difficult to join to the conductor 2 .
- a pair of adhesive layers 62 and 63 are formed on both sides of the insulating substrate 51 in the z direction, as in the semiconductor device A1. This makes it possible to bond the signal substrate 5 to the support conductor 2 even if the insulating substrate 51 does not include the second metal layer 53 .
- the signal substrate 5 includes the second metal layer 53, it is more effective than when it does not include the second metal layer 53 in the following points.
- warping of the signal substrate 5 is suppressed.
- the second metal layer 53 increases the heat capacity of the signal substrate 5, the temperature rise of the signal substrate 5 is suppressed.
- FIG. 20 shows a semiconductor device A3 according to the second modified example.
- the semiconductor device A3 differs from the semiconductor device A2 in that the signal substrates 5 (each of the first signal substrate 5A and the second signal substrate 5B) do not include an insulating substrate 51. .
- the first metal layer 52 (each wiring layer 521 to 526) is adhered to the supporting conductor 2 by the adhesive layer 6. . That is, the first metal layer 52 (each wiring layer 521 to 526) of the first signal board 5A is bonded to the first conductive portion 2A by the first adhesive 6A, and the first metal layer 52 (each wiring layer 521 to 526) of the second signal board 5B is bonded to the first conductive portion 2A. The wiring layers 521 to 526) are adhered to the second conductive portion 2B by the second adhesive 6B.
- an adhesive layer 6 different from solder is interposed between the wiring layers 521 to 526 and the supporting conductor 2, so that the wiring layers 521 to 526 are tilted with respect to the supporting conductor 2. can be prevented from becoming Therefore, the semiconductor device A3 can suppress defective connection of each control terminal 44 and variation in the position of each control terminal 44, so that reliability can be improved.
- the adhesive layer 6 includes an insulating layer 61, similar to the semiconductor devices A1 and A2.
- the adhesive layer 6 can , the wiring layers 521 to 526 are insulated from the support conductor 2 (the first conductive portion 2A and the second conductive portion 2B, respectively), and the wiring layers 521 to 526 are connected to the support conductor 2 (the first conductive portion 2B) by the adhesive layer 6. It becomes possible to adhere to the conductive portion 2A and the second conductive portion 2B, respectively).
- FIG. 21 shows a semiconductor device A4 according to the third modified example.
- semiconductor device A4 is different from semiconductor device A3 in that adhesive layer 6 (first adhesive body 6A and second adhesive body 6B, respectively) includes a pair of adhesive layers 62 and 63. The difference is that there is no
- the insulating layer 61 in the adhesive layer 6 (each of the first adhesive body 6A and the second adhesive body 6B) is made of an adhesive insulating material.
- the first metal layer 52 (wiring layers 521 to 526) is adhered to the support conductor 2, while the first metal layer 52 (wiring layers 521 to 526) and the support conductor 2 are insulated.
- the wiring layers 521 to 526 are connected to the supporting conductors by interposing an adhesive layer 6 different from solder between the wiring layers 521 to 526 and the supporting conductors 2. 2 can be suppressed. Therefore, since the semiconductor device A4 can suppress defective connection of each control terminal 44 and variation in the position of each control terminal 44, reliability can be improved.
- the signal substrate 5 is composed of the first metal layer 52 (each wiring layer 521 to 526). and the second signal substrate 5B) may further include an insulating substrate 51 like the semiconductor device A2, or may further include an insulating substrate 51 and a second metal layer 53 like the semiconductor device A1. may contain.
- FIG. 22 shows a semiconductor device A5 according to the fourth modified example. As shown in FIG. 22, the semiconductor device A5 differs from the semiconductor device A1 in that it does not include the support conductor 2 (each of the first conductive portion 2A and the second conductive portion 2B).
- the signal substrate 5 is adhered to the first metal layer 32 of the support substrate 3 by the adhesive layer 6. That is, the first signal board 5A is adhered to the first portion 32A by the first adhesive 6A, and the second signal board 5B is adhered to the second portion 32B by the second adhesive 6B.
- the first portion 32A and the second portion 32B are examples of the “supporting conductor,” the first portion 32A is an example of the “first conductive portion,” and the second portion 32B is the “second conductive portion.” is an example of
- the power terminal 41 is conductively joined to the first portion 32A, and each power terminal 43 is conductively joined to the second portion 32B.
- a plurality of first switching elements 1A are mounted on the first portion 32A, and a plurality of second switching elements 1B are mounted on the second portion 32B.
- the semiconductor device A5 an adhesive layer 6 different from solder is interposed between the signal substrate 5 and the first metal layer 32, so that the wiring layers 521 to 526 are tilted with respect to the first metal layer 32. can be suppressed. Therefore, the semiconductor device A5 can suppress defective connection of each control terminal 44 and variation in the position of each control terminal 44, thereby improving reliability.
- each control terminal 44 is fixed to each wiring layer 521 to 526, and the wiring layers 521 to 526 are supported by the supporting conductor 2 via the adhesive layer 6.
- each of the power terminals 41 to 43 may be fixed to a wiring layer different from the wiring layers 521 to 526, and the wiring layer may be supported by the support conductor 2 via the adhesive layer 6.
- each of the power terminals 41-43 is an example of a "terminal".
- control terminals 44 are press-fit terminals including holders 441 and metal pins 442. but not limited to this.
- the control terminal 44 (each of the plurality of first control terminals 45 and the plurality of second control terminals 46) may be a metal plate.
- the metal plate (control terminal 44) may be configured to be bent and extend in the z-direction, or may be configured to extend in the z-direction without being bent and along a plane (xy plane) perpendicular to the z-direction. may be configured to extend
- the semiconductor device according to the present disclosure is not limited to the above-described embodiments.
- the specific configuration of each part of the semiconductor device of the present disclosure can be changed in various ways.
- the present disclosure includes embodiments described in the appendices below.
- Appendix 1 a terminal including a conductive tubular holder and a metal pin inserted into the holder; a signal substrate including a wiring layer and an insulating substrate; a supporting conductor that supports the wiring layer through the insulating substrate; an adhesive layer interposed between the support conductor and the signal substrate; and
- the insulating substrate has a main surface and a back surface spaced apart in the thickness direction of the signal substrate, the wiring layer is formed on the main surface and the terminal is fixed;
- the holder is joined to the wiring layer,
- the metal pin extends along the thickness direction,
- the semiconductor device, wherein the adhesive layer includes an insulating layer that electrically insulates the signal substrate and the support conductor.
- Appendix 2 The semiconductor device according to appendix 1, wherein the adhesive layer further includes a pair of adhesive layers respectively formed on both sides of the insulating layer in the thickness direction.
- Appendix 3. The semiconductor device according to appendix 2, wherein the dimension in the thickness direction of each of the pair of adhesive layers is 10% or more and 150% or less of the dimension in the thickness direction of the insulating layer.
- Appendix 4. 3. The semiconductor device according to any one of appendices 1 to 3, wherein the dimension in the thickness direction of the insulating layer is 0.1% or more and 1.0% or less with respect to the dimension in the thickness direction of the terminal. . Appendix 5. 5. 5.
- the semiconductor device according to any one of appendices 1 to 4, wherein the dimension of the terminal in the thickness direction is 20 to 30 times the dimension of the signal substrate in the thickness direction.
- Appendix 6. The semiconductor device according to any one of appendices 2 to 5, wherein the insulating layer is film-like.
- Appendix 7. The semiconductor device according to appendix 6, wherein the insulating layer contains a resin material.
- Appendix 8. The semiconductor device according to appendix 7, wherein the resin material is polyimide.
- Appendix 9. The semiconductor device according to any one of appendices 1 to 8, wherein the insulating substrate contains ceramic.
- the signal substrate includes a metal layer formed on the back surface, 10.
- the supporting conductor includes a first conductive portion and a second conductive portion spaced apart from each other in a first direction perpendicular to the thickness direction,
- the semiconductor element includes a first switching element joined to the first conductive portion and a second switching element joined to the second conductive portion,
- the control terminal includes a first control terminal for controlling the first switching element and a second control terminal for controlling the second switching element;
- the signal board includes a first signal board supporting the first control terminal and a second signal board supporting the second control terminal, Appendix 12, wherein the adhesive layer includes a first adhesive that bonds the first signal substrate to the first conductive portion, and a second adhesive that bonds the second signal substrate to the second conductive portion.
- the first control terminal includes a first drive terminal for driving the first switching element, and a first detection terminal for detecting the conduction state of the first switching element, 14.
- the second control terminal includes a second drive terminal for driving the second switching element, and a second detection terminal for detecting the conduction state of the second switching element. semiconductor device. Appendix 15.
- the semiconductor device according to appendix 15 wherein each of the first control terminal and the second control terminal protrudes through the resin member in the thickness direction.
- the resin member has a resin main surface and a resin back surface separated in the thickness direction, and a pair of resin side surfaces each sandwiched between the resin main surface and the resin back surface in the thickness direction, The pair of resin side surfaces are separated from each other in the first direction, the first power terminal and the second power terminal protrude in the first direction from one of the pair of resin side surfaces; 17.
- the semiconductor device according to appendix 16 wherein the third power terminal protrudes in the first direction from the other of the pair of resin side surfaces.
- Appendix 18. 18.
- A1 to A5 semiconductor device 1: semiconductor element 1A: first switching element 1B: second switching element 10a: element main surface 10b: element back surface 11: first main surface electrode 12: second main surface electrode 13: third main surface Plane electrode 15: Back electrode 17: Thermistor 19: Conductive joint material 2: Support conductor 2A: First conductive part 2B: Second conductive part 201: Main surface 202: Back surface 29: Conductive joint material 3: Support substrate 31: Insulating layer 32: First metal layer 32A: First part 32B: Second part 33: Second metal layer 41, 42, 43: Power terminal 44: Control terminal 441: Holder 442: Metal pin 449: Conductive bonding material 45 : First control terminal 45A: First drive terminals 45B to 45E: First detection terminal 46: Second control terminal 46A: Second drive terminal 46B to 46E: Second detection terminal 5: Signal board 5A: First signal board 5B : second signal substrate 51: insulating substrate 51a: main surface 51b: back surface 52: first metal layer 521 to 526: wiring layer 53
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Power Conversion In General (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
付記1.
導電性を有する筒状のホルダおよび前記ホルダに挿入された金属ピンを含む端子と、
配線層および絶縁基板を含む信号基板と、
前記絶縁基板を介して前記配線層を支持する支持導体と、
前記支持導体と前記信号基板との間に介在する接着層と、
を備えており、
前記絶縁基板は、前記信号基板の厚さ方向に離間する主面および裏面を有し、
前記配線層は、前記主面に形成され、且つ、前記端子が固定されており、
前記ホルダは、前記配線層に接合され、
前記金属ピンは、前記厚さ方向に沿って延びており、
前記接着層は、前記信号基板と前記支持導体とを電気的に絶縁する絶縁層を含む、半導体装置。
付記2.
前記接着層は、前記絶縁層の前記厚さ方向における両面のそれぞれに形成された一対の粘着層をさらに含む、付記1に記載の半導体装置。
付記3.
前記一対の粘着層の各々の前記厚さ方向の寸法は、前記絶縁層の前記厚さ方向の寸法に対して10%以上150%以下である、付記2に記載の半導体装置。
付記4.
前記絶縁層の前記厚さ方向の寸法は、前記端子の前記厚さ方向の寸法に対して0.1%以上1.0%以下である、付記1ないし付記3のいずれかに記載の半導体装置。
付記5.
前記端子の前記厚さ方向の寸法は、前記信号基板の前記厚さ方向の寸法に対して20倍以上30倍以下である、付記1ないし付記4のいずれかに記載の半導体装置。
付記6.
前記絶縁層は、フィルム状である、付記2ないし付記5のいずれかに記載の半導体装置。
付記7.
前記絶縁層は、樹脂材料を含む、付記6に記載の半導体装置。
付記8.
前記樹脂材料は、ポリイミドである、付記7に記載の半導体装置。
付記9.
前記絶縁基板は、セラミックを含む、付記1ないし付記8のいずれかに記載の半導体装置。
付記10.
前記信号基板は、前記裏面に形成された金属層を含み、
前記金属層は、前記接着層によって前記支持導体に接着される、付記1ないし付記9のいずれかに記載の半導体装置。
付記11.
前記端子に電気的に接続された半導体素子をさらに備え、
前記半導体素子は、前記支持導体に接合されている、付記10に記載の半導体装置。
付記12.
前記端子は、前記半導体素子を制御するための制御端子である、付記11に記載の半導体装置。
付記13.
前記支持導体は、前記厚さ方向に対して直交する第1方向において互いに離間する第1導電部および第2導電部を含み、
前記半導体素子は、前記第1導電部に接合された第1スイッチング素子と、前記第2導電部に接合された第2スイッチング素子と、を含み、
前記制御端子は、前記第1スイッチング素子を制御するための第1制御端子と、前記第2スイッチング素子を制御するための第2制御端子と、を含み、
前記信号基板は、前記第1制御端子を支持する第1信号基板と、前記第2制御端子を支持する第2信号基板と、を含み、
前記接着層は、前記第1信号基板を前記第1導電部に接着する第1接着体と、前記第2信号基板を前記第2導電部に接着する第2接着体と、を含む、付記12に記載の半導体装置。
付記14.
前記第1制御端子は、前記第1スイッチング素子を駆動させるための第1駆動端子と、前記第1スイッチング素子の導通状態を検出するための第1検出端子と、を含み、
前記第2制御端子は、前記第2スイッチング素子を駆動させるための第2駆動端子と、前記第2スイッチング素子の導通状態を検出するための第2検出端子と、を含む、付記13に記載の半導体装置。
付記15.
第1電源電圧が印加される第1電力端子および第2電力端子と、
第2電源電圧が印加される第3電力端子と、
をさらに備え、
前記第1電力端子は、前記第1導電部に繋がり、前記第1導電部を介して前記第1スイッチング素子に電気的に接続され、
前記第2電力端子は、前記第2スイッチング素子に電気的に接続され、
前記第3電力端子は、前記第2導電部に繋がり、前記第2導電部を介して前記第1スイッチング素子および前記第2スイッチング素子の両方に電気的に接続される、付記13または付記14に記載の半導体装置。
付記16.
前記第1制御端子および前記第2制御端子の一部ずつと、前記第1信号基板および前記第2信号基板と、前記第1スイッチング素子および前記第2スイッチング素子とを覆う樹脂部材をさらに備え、
前記第1制御端子および前記第2制御端子の各々は、前記樹脂部材を前記厚さ方向に突出する、付記15に記載の半導体装置。
付記17.
前記樹脂部材は、前記厚さ方向に離間する樹脂主面および樹脂裏面と、各々が前記厚さ方向において前記樹脂主面および前記樹脂裏面に挟まれた一対の樹脂側面とを有し、
前記一対の樹脂側面は、前記第1方向において互いに離間し、
前記第1電力端子および前記第2電力端子は、前記一対の樹脂側面の一方から前記第1方向に突出し、
前記第3電力端子は、前記一対の樹脂側面の他方から前記第1方向に突出する、付記16に記載の半導体装置。
付記18.
前記第1導電部および前記第2導電部を支持する支持基板をさらに備える、付記13ないし付記17のいずれかに記載の半導体装置。
1A:第1スイッチング素子 1B:第2スイッチング素子
10a:素子主面 10b:素子裏面 11:第1主面電極
12:第2主面電極 13:第3主面電極 15:裏面電極
17:サーミスタ 19:導電性接合材 2:支持導体
2A:第1導電部 2B:第2導電部 201:主面
202:裏面 29:導電性接合材 3:支持基板
31:絶縁層 32:第1金属層 32A:第1部分
32B:第2部分 33:第2金属層
41,42,43:電力端子 44:制御端子
441:ホルダ 442:金属ピン 449:導電性接合材
45:第1制御端子 45A:第1駆動端子
45B~45E:第1検出端子 46:第2制御端子
46A:第2駆動端子 46B~46E:第2検出端子
5:信号基板 5A:第1信号基板 5B:第2信号基板
51:絶縁基板 51a:主面 51b:裏面
52:第1金属層 521~526:配線層
53:第2金属層 6:接着層 6A:第1接着体
6B:第2接着体 61:絶縁層 61a:主面
61b:裏面 62,63:粘着層 71:第1導通部材
711:主部 711a:開口 712:第1接続端部
712a:開口 713:第2接続端部 719:導電性接合材
72:第2導通部材 721:第1配線部 721a:第1端部
722:第2配線部 722a:凹状領域 723:第3配線部
724:第4配線部 729:導電性接合材 73~76:ワイヤ
8:樹脂部材 81:樹脂主面 82:樹脂裏面
831~834:樹脂側面 832a:凹部 851:第1突出部
851a:第1突出端面 851b:凹部 851c:内壁面
852:第2突出部 86:樹脂空隙部 88:樹脂充填部
Claims (18)
- 導電性を有する筒状のホルダおよび前記ホルダに挿入された金属ピンを含む端子と、
配線層および絶縁基板を含む信号基板と、
前記絶縁基板を介して前記配線層を支持する支持導体と、
前記支持導体と前記信号基板との間に介在する接着層と、
を備えており、
前記絶縁基板は、前記信号基板の厚さ方向に離間する主面および裏面を有し、
前記配線層は、前記主面に形成され、且つ、前記端子が固定されており、
前記ホルダは、前記配線層に接合され、
前記金属ピンは、前記厚さ方向に沿って延びており、
前記接着層は、前記信号基板と前記支持導体とを電気的に絶縁する絶縁層を含む、半導体装置。 - 前記接着層は、前記絶縁層の前記厚さ方向における両面のそれぞれに形成された一対の粘着層をさらに含む、請求項1に記載の半導体装置。
- 前記一対の粘着層の各々の前記厚さ方向の寸法は、前記絶縁層の前記厚さ方向の寸法に対して10%以上150%以下である、請求項2に記載の半導体装置。
- 前記絶縁層の前記厚さ方向の寸法は、前記端子の前記厚さ方向の寸法に対して0.1%以上1.0%以下である、請求項1ないし請求項3のいずれか一項に記載の半導体装置。
- 前記端子の前記厚さ方向の寸法は、前記信号基板の前記厚さ方向の寸法に対して20倍以上30倍以下である、請求項1ないし請求項4のいずれか一項に記載の半導体装置。
- 前記絶縁層は、フィルム状である、請求項2ないし請求項5のいずれか一項に記載の半導体装置。
- 前記絶縁層は、樹脂材料を含む、請求項6に記載の半導体装置。
- 前記樹脂材料は、ポリイミドである、請求項7に記載の半導体装置。
- 前記絶縁基板は、セラミックを含む、請求項1ないし請求項8のいずれか一項に記載の半導体装置。
- 前記信号基板は、前記裏面に形成された金属層を含み、
前記金属層は、前記接着層によって前記支持導体に接着される、請求項1ないし請求項9のいずれか一項に記載の半導体装置。 - 前記端子に電気的に接続された半導体素子をさらに備え、
前記半導体素子は、前記支持導体に接合されている、請求項10に記載の半導体装置。 - 前記端子は、前記半導体素子を制御するための制御端子である、請求項11に記載の半導体装置。
- 前記支持導体は、前記厚さ方向に対して直交する第1方向において互いに離間する第1導電部および第2導電部を含み、
前記半導体素子は、前記第1導電部に接合された第1スイッチング素子と、前記第2導電部に接合された第2スイッチング素子と、を含み、
前記制御端子は、前記第1スイッチング素子を制御するための第1制御端子と、前記第2スイッチング素子を制御するための第2制御端子と、を含み、
前記信号基板は、前記第1制御端子を支持する第1信号基板と、前記第2制御端子を支持する第2信号基板と、を含み、
前記接着層は、前記第1信号基板を前記第1導電部に接着する第1接着体と、前記第2信号基板を前記第2導電部に接着する第2接着体と、を含む、請求項12に記載の半導体装置。 - 前記第1制御端子は、前記第1スイッチング素子を駆動させるための第1駆動端子と、前記第1スイッチング素子の導通状態を検出するための第1検出端子と、を含み、
前記第2制御端子は、前記第2スイッチング素子を駆動させるための第2駆動端子と、前記第2スイッチング素子の導通状態を検出するための第2検出端子と、を含む、請求項13に記載の半導体装置。 - 第1電源電圧が印加される第1電力端子および第2電力端子と、
第2電源電圧が印加される第3電力端子と、
をさらに備え、
前記第1電力端子は、前記第1導電部に繋がり、前記第1導電部を介して前記第1スイッチング素子に電気的に接続され、
前記第2電力端子は、前記第2スイッチング素子に電気的に接続され、
前記第3電力端子は、前記第2導電部に繋がり、前記第2導電部を介して前記第1スイッチング素子および前記第2スイッチング素子の両方に電気的に接続される、請求項13または請求項14に記載の半導体装置。 - 前記第1制御端子および前記第2制御端子の一部ずつと、前記第1信号基板および前記第2信号基板と、前記第1スイッチング素子および前記第2スイッチング素子とを覆う樹脂部材をさらに備え、
前記第1制御端子および前記第2制御端子の各々は、前記樹脂部材を前記厚さ方向に突出する、請求項15に記載の半導体装置。 - 前記樹脂部材は、前記厚さ方向に離間する樹脂主面および樹脂裏面と、各々が前記厚さ方向において前記樹脂主面および前記樹脂裏面に挟まれた一対の樹脂側面とを有し、
前記一対の樹脂側面は、前記第1方向において互いに離間し、
前記第1電力端子および前記第2電力端子は、前記一対の樹脂側面の一方から前記第1方向に突出し、
前記第3電力端子は、前記一対の樹脂側面の他方から前記第1方向に突出する、請求項16に記載の半導体装置。 - 前記第1導電部および前記第2導電部を支持する支持基板をさらに備える、請求項13ないし請求項17のいずれか一項に記載の半導体装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280043844.7A CN117546282A (zh) | 2021-06-24 | 2022-06-08 | 半导体装置 |
DE112022002743.6T DE112022002743T5 (de) | 2021-06-24 | 2022-06-08 | Halbleitervorrichtung |
JP2023529811A JPWO2022270306A1 (ja) | 2021-06-24 | 2022-06-08 | |
US18/501,436 US20240105566A1 (en) | 2021-06-24 | 2023-11-03 | Semiconductor device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021105049 | 2021-06-24 | ||
JP2021-105049 | 2021-06-24 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/501,436 Continuation US20240105566A1 (en) | 2021-06-24 | 2023-11-03 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022270306A1 true WO2022270306A1 (ja) | 2022-12-29 |
Family
ID=84544292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/023070 WO2022270306A1 (ja) | 2021-06-24 | 2022-06-08 | 半導体装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240105566A1 (ja) |
JP (1) | JPWO2022270306A1 (ja) |
CN (1) | CN117546282A (ja) |
DE (1) | DE112022002743T5 (ja) |
WO (1) | WO2022270306A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011066078A (ja) * | 2009-09-15 | 2011-03-31 | Panasonic Electric Works Co Ltd | 回路モジュールおよびその製造方法 |
JP2019186329A (ja) * | 2018-04-05 | 2019-10-24 | 新光電気工業株式会社 | 配線基板、電子装置 |
JP2021019064A (ja) * | 2019-07-19 | 2021-02-15 | 富士電機株式会社 | 半導体装置及び半導体装置の製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6425380B2 (ja) | 2013-12-26 | 2018-11-21 | ローム株式会社 | パワー回路およびパワーモジュール |
-
2022
- 2022-06-08 DE DE112022002743.6T patent/DE112022002743T5/de active Pending
- 2022-06-08 CN CN202280043844.7A patent/CN117546282A/zh active Pending
- 2022-06-08 JP JP2023529811A patent/JPWO2022270306A1/ja active Pending
- 2022-06-08 WO PCT/JP2022/023070 patent/WO2022270306A1/ja active Application Filing
-
2023
- 2023-11-03 US US18/501,436 patent/US20240105566A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011066078A (ja) * | 2009-09-15 | 2011-03-31 | Panasonic Electric Works Co Ltd | 回路モジュールおよびその製造方法 |
JP2019186329A (ja) * | 2018-04-05 | 2019-10-24 | 新光電気工業株式会社 | 配線基板、電子装置 |
JP2021019064A (ja) * | 2019-07-19 | 2021-02-15 | 富士電機株式会社 | 半導体装置及び半導体装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
DE112022002743T5 (de) | 2024-03-28 |
JPWO2022270306A1 (ja) | 2022-12-29 |
CN117546282A (zh) | 2024-02-09 |
US20240105566A1 (en) | 2024-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN117712049B (zh) | 半导体模块 | |
CN116936561B (zh) | 半导体模块 | |
JP7354475B1 (ja) | 半導体モジュール | |
WO2022270306A1 (ja) | 半導体装置 | |
WO2022080072A1 (ja) | 半導体モジュール | |
WO2024075514A1 (ja) | 接合構造体および半導体装置 | |
US20240047433A1 (en) | Semiconductor device | |
WO2024084954A1 (ja) | 半導体装置および半導体装置の製造方法 | |
WO2022259824A1 (ja) | 接合構造および半導体装置 | |
US20240234361A9 (en) | Semiconductor device | |
US20240136320A1 (en) | Semiconductor device | |
WO2023017708A1 (ja) | 半導体装置 | |
WO2023140050A1 (ja) | 半導体装置 | |
WO2022080100A1 (ja) | 半導体モジュール、および半導体モジュールの製造方法 | |
JP2023130642A (ja) | 半導体装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22828223 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023529811 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280043844.7 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112022002743 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22828223 Country of ref document: EP Kind code of ref document: A1 |