WO2010067610A1 - 半導体モジュール、半導体モジュールの製造方法および携帯機器 - Google Patents

半導体モジュール、半導体モジュールの製造方法および携帯機器 Download PDF

Info

Publication number
WO2010067610A1
WO2010067610A1 PCT/JP2009/006765 JP2009006765W WO2010067610A1 WO 2010067610 A1 WO2010067610 A1 WO 2010067610A1 JP 2009006765 W JP2009006765 W JP 2009006765W WO 2010067610 A1 WO2010067610 A1 WO 2010067610A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
substrate
semiconductor module
electrodes
semiconductor
Prior art date
Application number
PCT/JP2009/006765
Other languages
English (en)
French (fr)
Inventor
中里真弓
伊藤克実
臼井良輔
五十嵐優助
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to US13/139,075 priority Critical patent/US20110241203A1/en
Publication of WO2010067610A1 publication Critical patent/WO2010067610A1/ja

Links

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
    • H01L23/49838—Geometry or layout
    • 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
    • H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
    • H01L21/563—Encapsulation of active face of flip-chip device, e.g. underfilling or underencapsulation of flip-chip, encapsulation preform on chip or mounting substrate
    • 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
    • H01L23/3114—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed the device being a chip scale package, e.g. CSP
    • 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
    • H01L23/48—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
    • H01L23/49827—Via connections through the substrates, e.g. pins going through the substrate, coaxial cables
    • 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
    • H01L24/10—Bump connectors ; Manufacturing methods related thereto
    • H01L24/15—Structure, shape, material or disposition of the bump connectors after the connecting process
    • H01L24/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
    • H05K1/185—Components encapsulated in the insulating substrate of the printed circuit or incorporated in internal layers of a multilayer circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341—Surface mounted components
    • H05K3/3431—Leadless components
    • H05K3/3436—Leadless components having an array of bottom contacts, e.g. pad grid array or ball grid array components
    • 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
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
    • H01L2224/0231—Manufacturing methods of the redistribution layers
    • H01L2224/02319—Manufacturing methods of the redistribution layers by using a preform
    • 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
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
    • H01L2224/0233—Structure of the redistribution layers
    • H01L2224/02333—Structure of the redistribution layers being a bump
    • 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
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
    • H01L2224/0237—Disposition of the redistribution layers
    • H01L2224/02379—Fan-out arrangement
    • 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
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
    • H01L2224/0237—Disposition of the redistribution layers
    • H01L2224/02381—Side view
    • 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
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
    • H01L2224/0239—Material of the redistribution layers
    • 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
    • H01L2224/0401—Bonding areas specifically adapted for bump connectors, e.g. under bump metallisation [UBM]
    • 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
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/05541—Structure
    • H01L2224/05548—Bonding area integrally formed with a redistribution layer on the semiconductor or solid-state 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
    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/0555—Shape
    • H01L2224/05556—Shape in side view
    • H01L2224/05557—Shape in side view comprising protrusions or indentations
    • 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
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/0556—Disposition
    • H01L2224/05568—Disposition the whole external layer protruding from the surface
    • 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
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/05599—Material
    • H01L2224/056—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
    • H01L2224/05617—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
    • H01L2224/05624—Aluminium [Al] as principal constituent
    • 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
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/05599—Material
    • H01L2224/056—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
    • H01L2224/05638—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
    • H01L2224/05647—Copper [Cu] as principal constituent
    • 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
    • H01L2224/13001—Core members of the bump connector
    • H01L2224/1302—Disposition
    • H01L2224/13022—Disposition the bump connector being at least partially embedded in the surface
    • 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
    • H01L2224/13001—Core members of the bump connector
    • H01L2224/1302—Disposition
    • H01L2224/13024—Disposition the bump connector being disposed on a redistribution layer on the semiconductor or solid-state 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
    • H01L2224/13001—Core members of the bump connector
    • H01L2224/13075—Plural core members
    • H01L2224/1308—Plural core members being stacked
    • H01L2224/13082—Two-layer arrangements
    • 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
    • H01L2224/13001—Core members of the bump connector
    • H01L2224/13099—Material
    • H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
    • H01L2224/13138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
    • H01L2224/13147—Copper [Cu] as principal constituent
    • 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
    • H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
    • H01L2224/161—Disposition
    • H01L2224/16151—Disposition the bump 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
    • H01L2224/16221—Disposition the bump 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
    • H01L2224/16225—Disposition the bump 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 non-metallic, e.g. insulating substrate with or without metallisation
    • 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
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
    • H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
    • H01L2224/161—Disposition
    • H01L2224/16151—Disposition the bump 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
    • H01L2224/16221—Disposition the bump 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
    • H01L2224/16225—Disposition the bump 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 non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/16238—Disposition the bump 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 non-metallic, e.g. insulating substrate with or without metallisation the bump connector connecting to a bonding area protruding from the surface 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
    • H01L2224/01—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
    • H01L2224/2612—Auxiliary members for layer connectors, e.g. spacers
    • H01L2224/26152—Auxiliary members for layer connectors, e.g. spacers being formed on an item to be connected not being a semiconductor or solid-state body
    • H01L2224/26175—Flow barriers
    • 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
    • H01L2224/32225—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 non-metallic, e.g. insulating substrate with or without metallisation
    • 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
    • H01L2224/73203—Bump and layer 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
    • H01L2224/73203—Bump and layer connectors
    • H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
    • 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
    • H01L2224/80—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
    • H01L2224/81—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 bump connector
    • H01L2224/8138—Bonding interfaces outside the semiconductor or solid-state body
    • H01L2224/81385—Shape, e.g. interlocking features
    • 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
    • H01L2224/80—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
    • H01L2224/81—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 bump connector
    • H01L2224/818—Bonding techniques
    • H01L2224/81801—Soldering or alloying
    • H01L2224/81815—Reflow soldering
    • 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
    • H01L2224/91—Methods for connecting semiconductor or solid state bodies including different methods provided for in two or more of groups H01L2224/80 - H01L2224/90
    • H01L2224/92—Specific sequence of method steps
    • H01L2224/921—Connecting a surface with connectors of different types
    • H01L2224/9212—Sequential connecting processes
    • H01L2224/92122—Sequential connecting processes the first connecting process involving a bump connector
    • H01L2224/92125—Sequential connecting processes the first connecting process involving a bump connector the second connecting process involving a layer connector
    • 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
    • H01L23/49816—Spherical bumps on the substrate for external connection, e.g. ball grid arrays [BGA]
    • 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
    • H01L24/02—Bonding areas ; Manufacturing methods related thereto
    • 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
    • H01L24/02—Bonding areas ; Manufacturing methods related thereto
    • H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L24/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • 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
    • H01L24/10—Bump connectors ; Manufacturing methods related thereto
    • H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L24/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump 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
    • H01L24/81—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 bump connector
    • 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
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01004—Beryllium [Be]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01005—Boron [B]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01006—Carbon [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
    • H01L2924/01—Chemical elements
    • H01L2924/01012—Magnesium [Mg]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01013—Aluminum [Al]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01029—Copper [Cu]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/0103—Zinc [Zn]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01033—Arsenic [As]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01047—Silver [Ag]
    • 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
    • H01L2924/01—Chemical elements
    • H01L2924/01078—Platinum [Pt]
    • 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
    • H01L2924/013—Alloys
    • H01L2924/014—Solder alloys
    • 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
    • H01L2924/14—Integrated circuits
    • 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
    • H01L2924/151—Die mounting substrate
    • H01L2924/153—Connection portion
    • H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
    • H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
    • 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
    • H01L2924/30—Technical effects
    • H01L2924/35—Mechanical effects
    • H01L2924/351—Thermal stress
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/111—Pads for surface mounting, e.g. lay-out
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09372—Pads and lands
    • H05K2201/09427—Special relation between the location or dimension of a pad or land and the location or dimension of a terminal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10621—Components characterised by their electrical contacts
    • H05K2201/10674—Flip chip
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10954—Other details of electrical connections
    • H05K2201/10977—Encapsulated connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a semiconductor module in which a semiconductor element is mounted on a substrate.
  • the solder for electrically connecting the external connection electrode of the semiconductor element and the electrode pad of the wiring board swells in the lateral direction (direction parallel to the substrate surface), and the adjacent external connection electrode and the electrode pad There is a possibility that a short circuit may occur due to contact with the connection portion. For this reason, there has been a restriction on narrowing the pitch between the electrode pads.
  • solder connecting the external connection electrode and the electrode pad swells in the lateral direction, so that when the underfill is filled between the semiconductor element and the wiring board, the solder obstructs the flow of the underfill, and a void is generated. There was a fear.
  • the present invention has been made in view of these problems, and an object thereof is a semiconductor module having a soldered structure in which an external connection electrode of a semiconductor element and an electrode pad of a wiring board are an example of a conductive connection member.
  • the present invention provides a technique for improving the connection reliability of the solder connection portion.
  • Another object of the present invention is to fill an underfill between a semiconductor element and a wiring board in a semiconductor module having a structure in which an external connection electrode of a semiconductor element and an electrode pad of a wiring board are soldered.
  • the present invention provides a technique capable of suppressing the generation of voids.
  • An aspect of the present invention is a semiconductor module.
  • the semiconductor module includes a substrate on which a first electrode is provided, a semiconductor element on which a second electrode is provided, and a conductive connection member that connects the first electrode and the second electrode, In a cross section along a line connecting adjacent first electrodes at the shortest distance, the width of the first electrode is smaller than the width of the second electrode corresponding to the first electrode, and the first electrode The height of the first electrode is higher than the width.
  • the conductive connection member that connects the first electrode and the second electrode is suppressed from spreading in the lateral direction, the conductive connection member fits inside the width of the second electrode. .
  • the conductive connection member since it is suppressed that a short circuit arises between adjacent 1st electrode and 2nd electrode, without impairing the connection reliability at the time of the connection by an electroconductive connection member, 1st electrode and 2nd The pitch of the electrodes can be reduced.
  • the conductive connecting member since the conductive connecting member is prevented from spreading in the lateral direction, the conductive connecting member becomes an obstacle to filling the underfill when filling the underfill between the element mounting substrate and the semiconductor element.
  • the underfill is likely to enter the gap between the element mounting substrate and the semiconductor element. As a result, generation of voids during underfill filling is suppressed.
  • the conductive connecting member since the conductive connecting member is prevented from spreading in the lateral direction, the conductive connecting member becomes an obstacle to filling the underfill when filling the underfill between the element mounting substrate and the semiconductor element.
  • the underfill is likely to enter the gap between the element mounting substrate and the semiconductor element. As a result, generation of voids during underfill filling is suppressed.
  • the conductive connecting member in the cross section along the line connecting the adjacent first electrodes at the shortest distance, is in a region connecting the bottom side of the first electrode and the upper side of the second electrode. It may fit.
  • the ratio (L1 / S1) between the width L1 of the first electrode and the interval S1 between the adjacent first electrodes is the first It may be smaller than the ratio (L2 / S2) between the width L2 of the second electrode corresponding to the electrode and the interval S2 between the adjacent second electrodes.
  • the side surface of the first electrode in the cross section along the line connecting the adjacent first electrodes with the shortest distance, may be inclined inward of the electrode formation region.
  • the first electrode may be a protruding electrode that protrudes from the wiring layer provided on the substrate toward the semiconductor element.
  • the shape of the first electrode may be substantially triangular or trapezoidal.
  • the portable device includes any one of the semiconductor modules described above.
  • Still another aspect of the present invention is a method for manufacturing a semiconductor module.
  • the manufacturing method of the semiconductor module includes a wiring forming step of patterning a wiring layer including an adjacent substrate electrode on one main surface of the substrate, an element electrode provided on the semiconductor element corresponding to the substrate electrode, and the substrate electrode And an element mounting step of mounting a semiconductor element on the substrate, and in the wiring forming step, in the cross section along the line connecting the adjacent substrate electrodes at the shortest distance, The substrate electrode is formed so that the width is narrower than the width of the element electrode corresponding to the substrate electrode.
  • the conductive connection member that electrically connects the external connection electrode of the semiconductor element and the electrode pad of the wiring board is suppressed from expanding in the lateral direction, and between the connection portions of the adjacent conductive connection members. Since insulation is enhanced, connection reliability at the solder connection portion is improved.
  • FIG. 1 is a cross-sectional view showing a configuration of a semiconductor module according to a first embodiment. It is a top view which shows an example of the pattern of the wiring layer containing a board
  • FIG. 6 is a process cross-sectional view illustrating the method for manufacturing the semiconductor module according to the first embodiment.
  • FIG. 6 is a process cross-sectional view illustrating the method for manufacturing the semiconductor module according to the first embodiment. It is a top view which shows the other example of the wiring layer pattern containing a board
  • FIG. 6 is a cross-sectional view showing a configuration of a semiconductor module according to Embodiment 2.
  • FIG. 10 is a process cross-sectional view illustrating the manufacturing method of the semiconductor module according to the second embodiment.
  • FIG. 10 is a process cross-sectional view illustrating the manufacturing method of the semiconductor module according to the second embodiment.
  • FIG. 10 is a process cross-sectional view illustrating the manufacturing method of the semiconductor module according to the second embodiment.
  • FIG. 10 is a process cross-sectional view illustrating the manufacturing method of the semiconductor module according to the second embodiment.
  • FIG. 10 is a process cross-sectional view illustrating the manufacturing method of the semiconductor module according to the second embodiment.
  • It is sectional drawing which shows the structure of the semiconductor module which concerns on a modification. It is a figure which shows the structure of the mobile telephone provided with the semiconductor module which concerns on embodiment. It is a fragmentary sectional view of the mobile phone shown in FIG.
  • FIG. 1 is a cross-sectional view showing the configuration of the semiconductor module according to the first embodiment.
  • the semiconductor module 10 includes an element mounting substrate 20 and a semiconductor element 30.
  • the semiconductor element 30 is mounted on the element mounting substrate 20 with the electrode forming surface on which the element electrode (external electrode terminal) is formed face down, and the element electrode and the electrode terminal provided on the element mounting substrate 20 are mounted. And are electrically connected using solder. That is, the semiconductor element 30 is flip-chip connected to the element mounting substrate 20.
  • the element mounting substrate 20 includes an insulating resin layer 22, a wiring layer 24 provided on one main surface (on the semiconductor element mounting side) of the insulating resin layer 22, a protective layer 28, and the other main surface of the insulating resin layer 22.
  • the material constituting the insulating resin layer 22 examples include thermosetting resins such as melamine derivatives such as BT resin, liquid crystal polymers, epoxy resins, PPE resins, polyimide resins, fluororesins, phenol resins, and polyamide bismaleimides.
  • thermosetting resins such as melamine derivatives such as BT resin, liquid crystal polymers, epoxy resins, PPE resins, polyimide resins, fluororesins, phenol resins, and polyamide bismaleimides.
  • the insulating resin layer 22 has high thermal conductivity.
  • the insulating resin layer 22 contains silver, bismuth, copper, aluminum, magnesium, tin, zinc, an alloy thereof, and the like as a highly thermally conductive filler.
  • the insulating resin layer 22 is a glass epoxy in which a glass cloth is embedded in the insulating resin layer 22 in order to reduce the difference in thermal expansion coefficient from the semiconductor element 30 or to increase the rigidity of the insulating resin layer 22. You may consist of resin.
  • the wiring layer 24 has a predetermined pattern and is provided on one main surface of the insulating resin layer 22.
  • the wiring layer 24 is formed of a conductive material such as copper.
  • the wiring layer 24 includes a substrate electrode 24 a (electrode pad) for connecting the semiconductor element 30.
  • the substrate electrode 24a corresponds to the “first electrode” of the present invention. The shape of the substrate electrode 24a will be described later.
  • FIG. 2 is a plan view showing an example of the pattern of the wiring layer 24 including the substrate electrode 24a.
  • the substrate electrode 24a has a comb-like shape protruding from a part of the wiring layer 24 (comb-like electrode), and a pair of comb-like electrodes face each other, and the comb-like portion of one comb-like electrode and the other comb-like portion The comb-tooth-shaped portions of the electrode are alternately arranged.
  • the solder for flip chip connection is formed on the substrate electrode 24a. 2 corresponds to a line connecting adjacent substrate electrodes 24a at the shortest distance, and FIG. 1 corresponds to a cross-sectional view taken along the line A-A 'in FIG. 2 indicates a region where the semiconductor device 30 is mounted.
  • the protective layer 28 is provided on one main surface of the insulating resin layer 22 so as to cover the wiring layer 24 excluding the substrate electrode 24a.
  • the protective layer 28 suppresses the oxidation of the wiring layer 24 and the deterioration of the insulating resin layer 22.
  • the protective layer 28 is formed by, for example, a photo solder resist, and the thickness of the protective layer 28 is, for example, 10 to 50 ⁇ m.
  • the wiring layer 26 has a predetermined pattern and is provided on the other main surface of the insulating resin layer 22.
  • the wiring layer 26 is formed of a conductive material such as copper.
  • the thickness of the wiring layer 24 and the wiring layer 26 is, for example, 10 to 25 ⁇ m.
  • a via conductor 40 penetrating the insulating resin layer 22 is provided at a predetermined position of the insulating resin layer 22.
  • the via conductor 40 is formed by, for example, copper plating.
  • the wiring layer 24 and the wiring layer 26 are electrically connected by the via conductor 40.
  • the protective layer 28 is also provided on the other main surface of the insulating resin layer 22 so as to cover the wiring layer 26, and the oxidation of the wiring layer 26 and the deterioration of the insulating resin layer 22 are suppressed by the protective layer 28.
  • the protective layer 28 is provided with an opening for mounting the solder ball 80 on a predetermined region (land region) of the wiring layer 26.
  • the solder ball 80 is connected to the wiring layer 26 in the opening provided in the protective layer 28, and the semiconductor module 10 is connected to a printed wiring board (not shown) by the solder ball 80.
  • the semiconductor element 30 is an active element such as an IC (integrated circuit) or an LSI (large scale integrated circuit).
  • An element electrode 32 (electrode pad) is provided on the electrode forming surface of the semiconductor element 30 corresponding to the substrate electrode 24 a provided on the element mounting substrate 20, and a copper post 33 is formed on the surface of the element electrode 32.
  • the cross-sectional shape of the copper post 33 is the same as that of the element electrode 32.
  • the copper post 33 and the substrate electrode 24 a are connected by solder 70.
  • the element electrode 32 and the copper post 33 correspond to the “second electrode” of the present invention.
  • the element electrode 32 and the substrate electrode 24 a may be connected by the solder 70 without using the copper post 33. In this case, the element electrode 32 corresponds to the “second electrode” of the present invention.
  • the solder 70 corresponds to the “conductive connection member” of the present invention.
  • An underfill 72 is filled between the semiconductor element 30 and the element mounting substrate 20.
  • the underfill 72 protects the solder joint between the substrate electrode 24a and the element electrode 32, and reduces the stress acting between the semiconductor element 30 and the element mounting substrate 20. Therefore, the connection reliability of the semiconductor module 10 can be reduced. More improved.
  • the width L1 of the substrate electrode 24a is narrower than the width L2 of the element electrode 32 corresponding to the substrate electrode 24a. More preferably, when the interval between adjacent substrate electrodes 24a is S1, and the interval between adjacent element electrodes 32 is S2, the L / S ratio (L1 / S1) of the substrate electrode 24a is L / S ( L2 / S2). Further, the height H of the substrate electrode 24a is higher than the width L1 of the substrate electrode 24a, and the relationship of H> L1 is established.
  • the side surface of the substrate electrode 24a is inclined inward of the substrate electrode 24a.
  • the angle formed by the substrate surface of the element mounting substrate 20 and the side surface of the substrate electrode 24a is an acute angle. If this condition is satisfied, the shape of the substrate electrode 24a is not particularly limited.
  • the shape of the substrate electrode 24a in the cross section along the line connecting the adjacent substrate electrodes 24a is substantially triangular or trapezoidal.
  • the solder 70 is suppressed from spreading in the lateral direction (the surface direction of the element mounting substrate 20), the solder 70 is accommodated inside the width L2 of the element electrode 32. More specifically, the solder 70 is contained in a region connecting the bottom 24 b of the substrate electrode 24 a (the portion where the substrate electrode 24 and the insulating resin layer 22 are in contact) and the upper side 32 a of the element electrode 32. As a result, the occurrence of a short circuit between the adjacent substrate electrode 24a and the element electrode 32 is suppressed, so that the pitch between the substrate electrode 24a and the element electrode 32 is reduced without impairing the connection reliability at the time of solder connection. be able to.
  • the underfill 72 is filled between the element mounting substrate 20 and the semiconductor element 30 by suppressing the solder 70 from spreading in the lateral direction, the solder 70 becomes an obstacle to filling the underfill 72.
  • the underfill 72 is likely to enter the gap between the element mounting substrate 20 and the semiconductor element 30. As a result, generation of voids during underfill filling is suppressed.
  • the width L1 of the substrate electrode 24a can be reduced by the structure in which the height H of the substrate electrode 24a is higher than the width L1 of the substrate electrode 24a. Therefore, the adjacent substrate electrodes 24a can be narrowed or densified.
  • an insulating resin layer 22 having a copper foil 23 attached to one main surface and a copper foil 25 attached to the other main surface is prepared.
  • via holes 27 are formed in predetermined regions of the insulating resin layer 22 and the copper foils 23 and 25 by excavation such as drilling and laser processing.
  • the via hole 27 is filled with copper by the electroless plating method and the electrolytic plating method to form the via conductor 40 and provided on the main surface of the insulating resin layer 22.
  • the copper foils 23 and 25 are thickened.
  • resist patterns 100a, 100b, 102 corresponding to the wiring layers 24, 24a, 26 are formed on the copper foils 23, 25, respectively.
  • the wiring layer 24 having a predetermined pattern including the substrate electrode 24a on one main surface of the insulating resin layer 22 is formed.
  • patterning is performed so that the width L1 of the substrate electrode 24a is narrower than the width of the element electrode corresponding to the substrate electrode 24a in the cross section along the line connecting the adjacent substrate electrodes 24a. More preferably, a ratio (L1 / S1) between the width L1 of the substrate electrode 24a and the interval S1 between the adjacent substrate electrodes 24a in a cross section along the line connecting the adjacent substrate electrodes 24a corresponds to the element corresponding to the substrate electrode 24a.
  • the patterning is performed so as to be smaller than the ratio (L2 / S2) between the electrode width L2 and the interval S2 between adjacent element electrodes. Further, patterning is performed so that the side surface of the substrate electrode 24a is inclined inward of the formation region of the substrate electrode 24a.
  • the wiring layer 26 is formed on the other main surface of the insulating resin layer 22 by performing wet etching using the resist pattern 102 as a mask.
  • the wiring layer 24 excluding the substrate electrode 24a is coated on one main surface of the insulating resin layer 22 by using a well-known photolithography method.
  • a protective layer 28 is formed. Further, a protective layer 28 having an opening that exposes the land region of the wiring layer 26 in a predetermined region is formed on the other main surface of the insulating resin layer 22.
  • a semiconductor element 30 is prepared in which the element electrode 32 and the copper post 33 are provided on the electrode forming surface, and the solder 70 is mounted on the copper post 33. Then, the semiconductor element 30 is mounted on the element mounting substrate 20.
  • the copper post 33 can be formed using, for example, a plating method.
  • the corresponding copper post 33 and the substrate electrode 24a are bonded using a solder 70 by a reflow process.
  • the copper post 33 and the substrate electrode 24a are electrically connected.
  • an underfill 72 is filled between the semiconductor element 30 and the element mounting substrate 20.
  • solder balls 80 are mounted on the wiring layer 26 in the openings provided in the protective layer 28.
  • the semiconductor module 10 according to the first embodiment can be manufactured.
  • the semiconductor element 30 may be sealed with a sealing resin layer using a transfer molding method or the like.
  • FIG. 5 is a plan view showing another example of a wiring layer pattern including a substrate electrode.
  • the protective layer 28 provided on one main surface of the insulating resin layer 22 is provided with an opening T corresponding to the outer peripheral portion of the mounted semiconductor device. In the opening T, the substrate electrode 24a and the insulating resin layer 22 are exposed.
  • the substrate electrode 24 a is formed at one end of the wiring layer 24, and the via conductor 40 is connected to the other end of the wiring layer 24.
  • the wiring layer 24 extends from the substrate electrode 24 to the via conductor 40.
  • the via conductors 40 are provided at predetermined positions in the semiconductor device mounting region (inside the opening T in FIG. 5) and outside the semiconductor device mounting region (outside the opening T in FIG. 5). .
  • a plurality of substrate electrodes 24a are provided in the opening T.
  • the longitudinal direction of the substrate electrode 24 a is provided so as to cross the opening T. 5 corresponds to a line connecting adjacent substrate electrodes 24a with the shortest distance, and the mounting region of the semiconductor element 30 in FIG. 1 is a cross-sectional view taken along the line CC ′ in FIG. Equivalent to.
  • FIG. 6 is a cross-sectional view showing the configuration of the semiconductor module according to the second embodiment.
  • the semiconductor module 10 includes an element mounting substrate 20 and a semiconductor element 30.
  • the semiconductor element 30 is formed using, for example, a P-type silicon wafer.
  • An element electrode 32 connected to the integrated circuit is provided on the main surface MS1 serving as a mounting surface.
  • a metal such as aluminum (Al) or copper (Cu) is used as the material of the device electrode 32.
  • the device electrode 32 corresponds to the “second electrode” of the present invention.
  • a protective layer 34 is formed on main surface MS1 of semiconductor element 30 so that element electrode 32 is exposed.
  • a silicon oxide film (SiO 2 ), a silicon nitride film (SiN), a polyimide (PI) film, or the like is suitable.
  • the element mounting substrate 20 is formed integrally with the insulating resin layer 22, the wiring layer 24 (rewiring) provided on the main surface of the insulating resin layer 22 opposite to the semiconductor element 30, and the wiring layer 24. And a protruding electrode 90 protruding from the wiring layer 24 toward the insulating resin layer 22 side.
  • the protruding electrode 90 corresponds to the “first electrode” of the present invention. 6 corresponds to a cross-sectional view along a line connecting adjacent protruding electrodes 90 with the shortest distance.
  • the insulating resin layer 22 is made of an insulating resin, and is formed of a material that causes plastic flow when heated or pressurized, for example.
  • a material that causes plastic flow when pressed is an epoxy thermosetting resin.
  • the epoxy thermosetting resin used for the insulating resin layer 22 may be any material having a viscosity of 1 kPa ⁇ s under conditions of a temperature of 160 ° C. and a pressure of 8 Mpa, for example.
  • the viscosity of the resin is reduced to about 1/8 compared to the case where no pressure is applied. .
  • the B stage epoxy resin before thermosetting is not as viscous as when the resin is not pressurized under the condition of the glass transition temperature Tg or lower, and does not cause viscosity even when pressurized.
  • the epoxy thermosetting resin is a dielectric having a dielectric constant of about 3-4.
  • the wiring layer 24 is provided on the main surface of the insulating resin layer 22 opposite to the semiconductor element 30 and is made of a conductive material, preferably a rolled metal, and further rolled copper. Since rolled copper is stronger in terms of mechanical strength than a metal film made of copper formed by plating or the like, it is excellent as a material for rewiring.
  • the wiring layer 24 may be formed of electrolytic copper or the like.
  • the wiring layer 24 and the protruding electrode 90 are integrally formed, so that the connection between the wiring layer 24 and the protruding electrode 90 is ensured.
  • the projecting electrode 90 has an overall shape that decreases in diameter as it approaches the tip.
  • the side surface of the protruding electrode 90 is tapered to the inside of the electrode formation region.
  • the angle formed by the surface of the wiring layer 24 and the side surface of the protruding electrode 90 is an acute angle.
  • the diameter of the tip (top surface) and the base surface of the protruding electrode 90 are, for example, about 45 ⁇ m ⁇ and about 60 ⁇ m ⁇ , respectively.
  • the height of the protruding electrode 90 is, for example, 20 ⁇ m.
  • the top surface of the protruding electrode 90 and the element electrode 32 corresponding to the protruding electrode 90 are joined by solder 70.
  • the width L 1 of the base portion of the protruding electrode 90 is narrower than the width L 2 of the element electrode 32 corresponding to the protruding electrode 90. More preferably, when the interval between the base portions of the adjacent protruding electrodes 90 is S1 and the interval between the adjacent element electrodes 32 is S2, the L / S ratio (L1 / S1) of the protruding electrodes 90 is L of the element electrodes 32. It is smaller than / S (L2 / S2). Furthermore, since the diameter of the protruding electrode 90 becomes smaller as it approaches the tip, the width L1 'of the top surface of the protruding electrode 90 is narrower than the width L1 of the base of the protruding electrode 90.
  • a protective layer 28 for preventing the wiring layer 24 from being oxidized is provided on the main surface of the wiring layer 24 opposite to the insulating resin layer 22.
  • the protective layer 28 include a solder resist layer.
  • An opening is formed in a predetermined region of the protective layer 28, and a part of the wiring layer 24 is exposed through the opening.
  • Solder balls 80 as external connection electrodes are formed in the openings, and the solder balls 80 and the wiring layer 24 are electrically connected.
  • the position where the solder ball 80 is formed, that is, the area where the opening is formed is, for example, an end portion that is routed by rewiring (wiring layer 24).
  • a semiconductor element 30 in which an element electrode 32 and a protective layer 34 are previously formed on one main surface of a semiconductor substrate 31 is prepared.
  • a semiconductor substrate 31 such as a P-type silicon substrate by using a semiconductor manufacturing process in which a well-known lithography technique, etching technique, ion implantation technique, film forming technique, and heat treatment technique are combined.
  • a predetermined integrated circuit is formed on the surface and an element electrode 32 is formed on the outer peripheral edge thereof.
  • a metal such as aluminum or copper is employed as the material of the element electrode 32.
  • An insulating protective layer 34 for protecting the semiconductor substrate 31 is formed on the main surface of the semiconductor substrate 31 excluding these element electrodes 32.
  • a silicon oxide film (SiO 2 ), a silicon nitride film (SiN), polyimide (PI), or the like is employed.
  • a solder 70 is mounted on the element electrode 32 exposed at the opening of the protective layer 34 by a screen printing method. Specifically, a solder paste in which a resin and a solder material are pasted is printed on a desired location by a screen mask and heated to a solder melting temperature to form solder 70.
  • a copper plate 200 is prepared as a metal plate having a thickness at least larger than the sum of the height of the protruding electrode 90 and the thickness of the wiring layer 24 as shown in FIG.
  • the thickness of the copper plate 200 is, for example, 125 ⁇ m.
  • a rolled metal made of rolled copper is employed as the copper plate 200.
  • a resist 210 is selectively formed by a lithography method in accordance with a pattern corresponding to the projected electrode formation region. Specifically, a resist film having a predetermined thickness is attached to the copper plate 200 using a laminator device, exposed using a photomask having a pattern of the protruding electrodes 90, and then developed to form a resist on the copper plate 200. 210 is selectively formed. In order to improve the adhesion to the resist, it is desirable to perform pretreatment such as polishing and cleaning on the surface of the copper plate 200 as needed before laminating the resist film. It is desirable to protect the copper plate 200 by forming a resist protective film (not shown) on the entire surface opposite to the surface on which the resist 210 is provided (upper surface side).
  • a predetermined frustoconical pattern protruding from the surface of the copper plate 200 is performed by performing a wet etching process using a chemical such as a ferric chloride solution using the resist 210 as a mask.
  • the protruding electrode 90 is formed.
  • the protruding electrode 90 is formed to have a tapered side surface portion whose diameter (dimension) becomes narrower as it approaches the tip portion.
  • the wet etching process is performed under such a condition that the diameter (width) L1 of the base portion of the protruding electrode 90 is smaller than the width L2 (see FIG. 1) of the element electrode 32 corresponding to the protruding electrode 90.
  • the diameter of the base portion, the diameter of the top portion, and the height of the protruding electrode 90 of this embodiment are, for example, 100 to 140 ⁇ m ⁇ , 50 ⁇ m ⁇ , and 20 to 25 ⁇ m, respectively.
  • the resist 210 and the resist protective film are stripped using a stripping agent.
  • the bump electrode 90 is integrally formed on the copper plate 200.
  • a metal mask such as silver (Ag) may be employed instead of the resist 210.
  • the patterning of the bump electrode 90 can be further miniaturized.
  • the insulating resin layer 22 is laminated on the surface of the copper plate 200 on the side where the protruding electrodes 90 are provided, using a vacuum laminating method.
  • an insulating material that causes plasticity or deformation by pressure or heating is used as the insulating resin layer 22, as described above.
  • the insulating resin layer 22 is thinned so that the top surface of the protruding electrode 90 is exposed using O 2 plasma etching.
  • the surface of the copper plate 200 opposite to the side where the protruding electrodes 90 are provided is etched back by wet etching using a chemical solution such as ferric chloride solution.
  • the copper plate 200 is thinned.
  • a resist protective film (not shown) is formed on the side where the protruding electrode 90 is provided to protect the protruding electrode 90 and the copper plate 200, and the resist protective film is removed after the etching process.
  • the copper plate 200 that is processed to have a predetermined thickness (the thickness of the wiring layer 24) and is provided with the predetermined protruding electrodes 90 integrally is formed.
  • the thickness of the copper plate 200 of this embodiment is about 20 ⁇ m.
  • the semiconductor element 30 and the copper plate 200 are pressure-bonded in a state where the corresponding protruding electrode 90 and the element electrode 32 are in contact with each other by press molding using a press machine.
  • the pressure and temperature during pressing are about 17 kN and 200 ° C., respectively.
  • the solder 70 is melted by reflow, and the corresponding protruding electrode 90 and the element electrode 32 are joined by the solder 70.
  • the solder 70 Since the wettability between the molten solder 70 and the top surface of the bump electrode 90 is higher than the wettability between the molten solder 70 and the insulating resin layer 22, the solder 70 is attracted to the top surface of the bump electrode 90, In the vicinity of the top surface of the electrode 90, the width of the solder 70 is within the top surface of the protruding electrode 90.
  • the wiring layer 24 (rewiring) is formed by processing the copper plate 200 into a predetermined wiring pattern using a lithography technique and an etching technique.
  • a protective layer (photo solder resist layer) 28 is laminated on the wiring layer 24 and the insulating resin layer 22, a predetermined region (solder) of the protective layer 28 is formed by photolithography. An opening is provided in the ball mounting area.
  • the protective layer 28 functions as a protective film for the wiring layer 24.
  • An epoxy resin or the like is employed for the protective layer 28, and the film thickness is, for example, about 40 ⁇ m.
  • solder balls 80 are mounted on the openings of the protective layer 28 by screen printing.
  • the solder ball 80 is formed by printing a solder paste made of a resin and a solder material in a paste form on a desired location using a screen mask and heating to a solder melting temperature.
  • the semiconductor module according to the second embodiment can be manufactured through the above steps.
  • the solder 70 fits in the width L ⁇ b> 1 ′ of the top surface of the protruding electrode 90.
  • the width L1 ′ of the top surface of the bump electrode 90 is narrower than the width L1 of the base portion of the bump electrode 90, and the width L1 of the base portion of the bump electrode 90 is equal to the width L2 of the element electrode 32 corresponding to the bump electrode 90. Narrower than that. That is, the width of the solder 70 on the protruding electrode 90 side is suppressed from spreading in the lateral direction (the surface direction of the element mounting substrate 20) so as to be within the width L2 of the element electrode 32.
  • the solder 70 is provided between the top surface of the bump electrode 90 and the element electrode 32, and the solder 70 is in contact with the top surface of the bump electrode 90. As long as it is within L2, it may be in contact with the side surface of the protruding electrode 90.
  • a gap is formed between the side surface portion of the tip portion of the protruding electrode 90 and the insulating resin layer 22, and the solder 70 enters the gap, whereby the protrusion
  • the solder 70 may be in contact with the side surface of the tip portion of the electrode 90.
  • the width of the side surface portion of the bump electrode 90 is narrower than the width L1 of the base portion of the bump electrode 90, and the width of the solder 70 in contact with the bump electrode 90 is narrower than the width L1 of the base portion of the bump electrode 90. . That is, the width of the solder 70 on the protruding electrode 90 side is suppressed from spreading in the lateral direction (the surface direction of the element mounting substrate 20) so as to be within the width L2 of the element electrode 32.
  • a portable device provided with the semiconductor module of the present invention.
  • the example mounted in a mobile telephone is shown as a portable apparatus, even if it is electronic apparatuses, such as a personal digital assistant (PDA), a digital video camera (DVC), a music player, and a digital still camera (DSC), for example. Good.
  • PDA personal digital assistant
  • DVC digital video camera
  • DSC digital still camera
  • FIG. 13 is a diagram showing a configuration of a mobile phone including the semiconductor module 10 according to the embodiment.
  • a cellular phone 1111 has a structure in which a first housing 1112 and a second housing 1114 are connected by a movable portion 1120. The first housing 1112 and the second housing 1114 can be rotated around the movable portion 1120.
  • the first housing 1112 is provided with a display portion 1118 and a speaker portion 1124 for displaying information such as characters and images.
  • the second housing 1114 is provided with an operation portion 1122 such as operation buttons and a microphone portion 1126. Note that any one of the semiconductor modules according to the embodiments of the present invention is mounted inside the mobile phone 1111.
  • the semiconductor module of the present invention mounted on a mobile phone is employed in a power supply circuit for driving each circuit, an RF generating circuit for generating RF, a DAC, an encoder circuit, and a display unit of the mobile phone. It can be employed as a drive circuit for a backlight as a light source of a liquid crystal panel.
  • FIG. 14 is a partial cross-sectional view (cross-sectional view of the first casing 1112) of the mobile phone shown in FIG.
  • the semiconductor module 10 according to the embodiment of the present invention is mounted on a printed circuit board 1128 via solder balls 80 and is electrically connected to the display unit 1118 and the like via such printed circuit board 1128.
  • a heat radiating substrate 1116 such as a metal substrate is provided on the back surface side of the semiconductor module 10 (the surface opposite to the solder ball 80). For example, heat generated from the semiconductor module 10 is transferred into the first housing 1112. The heat can be efficiently radiated to the outside of the first housing 1112 without stagnation.
  • the portable device including the semiconductor module according to the embodiment of the present invention, the following effects can be obtained.
  • the semiconductor module 10 since the reliability of the connection between the first electrode on the substrate side and the second electrode on the semiconductor element side is improved, the operation reliability of the semiconductor module 10 is improved. Therefore, the semiconductor module 10 is mounted. The operational reliability of the mobile device is improved.
  • the heat from the semiconductor module 10 can be efficiently radiated to the outside through the heat dissipation substrate 1116, the temperature rise of the semiconductor module 10 is suppressed, and the thermal stress between the conductive member and the wiring layer is reduced. The For this reason, compared with the case where the heat dissipation substrate 1116 is not provided, the conductive member in the semiconductor module is prevented from peeling from the wiring layer, and the reliability (heat resistance reliability) of the semiconductor module 10 is improved. As a result, the reliability (heat resistance reliability) of the portable device can be improved.
  • the semiconductor module 10 described in the above embodiment can be reduced in size, a portable device equipped with such a semiconductor module 10 can be reduced in thickness and size.
  • solder is used as a conductive connection member that electrically connects an electrode provided on the element mounting substrate 20 and an electrode provided on the semiconductor element 30.
  • a conductive paste such as a silver paste may be used in addition to the solder.
  • the present invention can be used for a semiconductor module in which a semiconductor element is mounted on a substrate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Geometry (AREA)
  • Wire Bonding (AREA)

Abstract

　半導体モジュール１０は、素子搭載用基板２０および半導体素子３０を備える。半導体素子３０は素子搭載用基板２０にフリップチップ接続されており、半導体素子３０に設けられた素子電極３２と素子搭載用基板２０に設けられた基板電極２４ａとがはんだ７０により接続されている。隣接する基板電極２４ａを結ぶ線に沿った断面において、基板電極２４ａの幅Ｌ１は、基板電極２４ａに対応する素子電極３２の幅Ｌ２に比べて狭くなっている。

Description

半導体モジュール、半導体モジュールの製造方法および携帯機器
　本発明は、半導体素子が基板に実装された半導体モジュールに関する。
　近年、電子機器の小型化・高機能化に伴い、電子機器に使用される半導体モジュールのさらなる小型化が求められている。こうした半導体モジュールの小型化に伴い、半導体素子（半導体チップ）を配線基板に実装するための電極パッド間の狭ピッチ化が不可欠となっている。半導体素子の表面実装方法としては、半導体素子の外部接続電極と配線基板の電極パッドとをはんだ付けするフリップチップ実装方法が知られている。
特開２００６－３５１５８９号公報
　従来のフリップチップ接続では、半導体素子の外部接続電極と配線基板の電極パッドとを電気的に接続するはんだが横方向（基板面と平行な方向）に膨らみ、隣接する外部接続電極と電極パッドの接続部分に接触することにより短絡が生じてしまうおそれがあった。このため、電極パッド間の狭ピッチ化に制約が生じていた。
　また、外部接続電極と電極パッドと接続するはんだが横方向に膨らむことにより、半導体素子と配線基板との間にアンダーフィルを充填する際にはんだがアンダーフィルの流れの障害となり、ボイドが発生するおそれがあった。
　本発明はこうした課題に鑑みてなされたものであり、その目的は、半導体素子の外部接続電極と配線基板の電極パッドとが導電性接続部材の一例であるはんだ付けされた構造を有する半導体モジュールにおいて、はんだ接続部分の接続信頼性を向上させる技術の提供にある。また、本発明の他の目的は、半導体素子の外部接続電極と配線基板の電極パッドとがはんだ付けされた構造を有する半導体モジュールにおいて、半導体素子と配線基板との間にアンダーフィルを充填する際にボイドが発生することを抑制することができる技術の提供にある。
　本発明のある態様は、半導体モジュールである。当該半導体モジュールは、第１の電極が設けられた基板と、第２の電極が設けられた半導体素子と、第１の電極と第２の電極とを接続する導電性接続部材と、を備え、隣接する第１の電極を最短距離で結ぶ線に沿った断面において、第１の電極の幅が、第１の電極に対応する第２の電極の幅に比べて狭く、かつ第１の電極の幅に比べて第１の電極の高さが高いことを特徴とする。
　この態様によれば、第１の電極と第２の電極とを接続する導電性接続部材が横方向に広がることが抑制されるため、導電性接続部材が第２の電極の幅の内側に収まる。これにより、隣接する第１の電極および第２の電極の間で短絡が生じることが抑制されるため、導電性接続部材による接続時の接続信頼性を損なうことなく、第１の電極および第２の電極の狭ピッチ化を図ることができる。
　また、導電性接続部材が横方向に広がることが抑制されることにより、素子搭載用基板と半導体素子との間にアンダーフィルを充填する場合に、導電性接続部材がアンダーフィルの充填の障害になることが低減し、素子搭載用基板と半導体素子との隙間にアンダーフィルが入り込みやすくなる。この結果、アンダーフィル充填時にボイドが発生することが抑制される。
　また、導電性接続部材が横方向に広がることが抑制されることにより、素子搭載用基板と半導体素子との間にアンダーフィルを充填する場合に、導電性接続部材がアンダーフィルの充填の障害になることが低減し、素子搭載用基板と半導体素子との隙間にアンダーフィルが入り込みやすくなる。この結果、アンダーフィル充填時にボイドが発生することが抑制される。
　上記態様の半導体モジュールに関し、隣接する第１の電極を最短距離で結ぶ線に沿った断面において、導電性接続部材が、第１の電極の底辺と第２の電極の上辺とを結ぶ領域内に収まっていてもよい。また、隣接する第１の電極を最短距離で結ぶ線に沿った断面において、第１の電極の幅Ｌ１と隣接する第１の電極の間隔Ｓ１との比（Ｌ１／Ｓ１）が、第１の電極に対応する第２の電極の幅Ｌ２と隣接する第２の電極の間隔Ｓ２との比（Ｌ２／Ｓ２）より小さくてもよい。また、隣接する第１の電極を最短距離で結ぶ線に沿った断面において、第１の電極の側面が電極形成領域の内側に傾いていてもよい。また、第１の電極が基板に設けられた配線層から半導体素子の側へ突出する突起電極であってもよい。また、隣接する第１の電極を最短距離で結ぶ線に沿った断面において、第１の電極の形状が略三角形または台形であってもよい。
　本発明の他の態様は、携帯機器である。当該携帯機器は、上述したいずれかの態様の半導体モジュールを備えることを特徴とする。
　本発明のさらに他の態様は、半導体モジュールの製造方法である。当該半導体モジュールの製造方法は、基板の一方の主表面に、隣接する基板電極を含む配線層をパターニングする配線形成工程と、基板電極に対応して半導体素子に設けられた素子電極と基板電極とを導電性接続部材を用いて接続し、基板に半導体素子を搭載する素子搭載工程と、を備え、配線形成工程において、隣接する基板電極を最短距離で結ぶ線に沿った断面において、基板電極の幅が基板電極に対応する素子電極の幅よりも狭くなるように基板電極を形成することを特徴とする。
　本発明によれば、半導体素子の外部接続電極と配線基板の電極パッドとを電気的に接続する導電性接続部材が横方向に膨らむことが抑制され、隣接する導電性接続部材の接続部分間の絶縁性が高まるため、はんだ接続部分における接続信頼性が向上する。
実施の形態１に係る半導体モジュールの構成を示す断面図である。 基板電極を含む配線層のパターンの一例を示す平面図である。 実施の形態１に係る半導体モジュールの製造方法を示す工程断面図である。 実施の形態１に係る半導体モジュールの製造方法を示す工程断面図である。 基板電極を含む配線層パターンの他の例を示す平面図である。 実施の形態２に係る半導体モジュールの構成を示す断面図である。 実施の形態２に係る半導体モジュールの製造方法を示す工程断面図である。 実施の形態２に係る半導体モジュールの製造方法を示す工程断面図である。 実施の形態２に係る半導体モジュールの製造方法を示す工程断面図である。 実施の形態２に係る半導体モジュールの製造方法を示す工程断面図である。 実施の形態２に係る半導体モジュールの製造方法を示す工程断面図である。 変形例に係る半導体モジュールの構成を示す断面図である。 実施の形態に係る半導体モジュールを備えた携帯電話の構成を示す図である。 図１３に示した携帯電話の部分断面図である。
　以下、本発明の実施の形態を図面を参照して説明する。なお、すべての図面において、同様な構成要素には同様の符号を付し、適宜説明を省略する。
　（実施の形態１）
　図１は、実施の形態１に係る半導体モジュールの構成を示す断面図である。半導体モジュール１０は、素子搭載用基板２０および半導体素子３０を備える。半導体素子３０は、素子電極（外部電極端子）が形成された電極形成面をフェイスダウンした状態で素子搭載用基板２０に実装され、当該素子電極と、素子搭載用基板２０に設けられた電極端子とがはんだを用いて電気的に接続されている。すなわち、半導体素子３０は素子搭載用基板２０にフリップチップ接続されている。
　素子搭載用基板２０は、絶縁樹脂層２２と、絶縁樹脂層２２の一方の主表面（半導体素子搭載側）に設けられた配線層２４、保護層２８と、絶縁樹脂層２２の他方の主表面に設けられた配線層２６、保護層２８、はんだボール８０を備える。
　絶縁樹脂層２２を構成する材料としては、たとえば、ＢＴレジン等のメラミン誘導体、液晶ポリマー、エポキシ樹脂、ＰＰＥ樹脂、ポリイミド樹脂、フッ素樹脂、フェノール樹脂、ポリアミドビスマレイミド等の熱硬化性樹脂が例示される。半導体モジュール１０の放熱性向上の観点から、絶縁樹脂層２２は高熱伝導性を有することが望ましい。このため、絶縁樹脂層２２は、銀、ビスマス、銅、アルミニウム、マグネシウム、錫、亜鉛およびこれらの合金などを高熱伝導性フィラーとして含有することが好ましい。また、絶縁樹脂層２２は、半導体素子３０との熱膨張係数の差を小さくするため、または、絶縁樹脂層２２の剛性を高めるために、絶縁樹脂層２２内にガラスクロスが埋め込まれたガラスエポキシ樹脂からなっていてもよい。
　配線層２４は、所定パターンを有し、絶縁樹脂層２２の一方の主表面に設けられている。配線層２４は、銅などの導電材料により形成される。配線層２４は、半導体素子３０を接続するための基板電極２４ａ（電極パッド）を含む。基板電極２４ａは、本発明の「第１の電極」に相当する。基板電極２４ａの形状については後述する。
　図２は、基板電極２４ａを含む配線層２４のパターンの一例を示す平面図である。基板電極２４ａは、配線層２４の一部から突出した櫛状をなしており（櫛状電極）、一対の櫛状電極が互いに対向し、一方の櫛状電極の櫛歯状部と他方の櫛状電極の櫛歯状部が互い違いに併設した構造を有する。フリップチップ接続用のはんだは、基板電極２４ａの上に形成される。なお、図２のＡ－Ａ’線は、隣接する基板電極２４ａを最短距離で結ぶ線に相当し、図１は図２のＡ－Ａ’線に沿った断面図に相当する。なお、図２に示す領域Ｒは、半導体装置３０が搭載される領域を示す。
　図１に戻り、保護層２８は、基板電極２４ａを除く配線層２４を覆うように絶縁樹脂層２２の一方の主表面に設けられている。保護層２８によって配線層２４の酸化や絶縁樹脂層２２の劣化が抑制される。保護層２８は、たとえばフォトソルダーレジストにより形成され、保護層２８の厚さは、例えば１０～５０μｍである。
　配線層２６は、所定パターンを有し、絶縁樹脂層２２の他方の主表面に設けられている。配線層２６は、銅などの導電材料により形成される。配線層２４および配線層２６の厚さは、例えば１０～２５μｍである。
　絶縁樹脂層２２の所定位置において、絶縁樹脂層２２を貫通するビア導体４０が設けられている。ビア導体４０は、例えば、銅めっきにより形成される。ビア導体４０により、配線層２４と配線層２６とが電気的に接続されている。
　保護層２８は、配線層２６を覆うように絶縁樹脂層２２の他方の主表面にも設けられており、保護層２８によって配線層２６の酸化や絶縁樹脂層２２の劣化が抑制される。保護層２８には、配線層２６の所定領域（ランド領域）上にはんだボール８０を搭載するための開口部が設けられている。はんだボール８０は、保護層２８に設けられた開口部内において、配線層２６に接続され、半導体モジュール１０は、はんだボール８０によって図示しないプリント配線基板に接続される。
　半導体素子３０は、ＩＣ（集積回路）、ＬＳＩ（大規模集積回路）などの能動素子である。半導体素子３０の電極形成面には、素子搭載用基板２０に設けられた基板電極２４ａに対応して素子電極３２（電極パッド）が設けられており、素子電極３２の表面に銅ポスト３３が形成されている。銅ポスト３３の断面形状は素子電極３２と同様である。この銅ポスト３３と基板電極２４ａとがはんだ７０により接続されている。素子電極３２および銅ポスト３３は、本発明の「第２の電極」に相当する。なお、銅ポスト３３を介さずに、素子電極３２と基板電極２４ａとがはんだ７０により接続されていてもよい。この場合には、素子電極３２が本発明の「第２の電極」に相当する。また、はんだ７０は、本発明の「導電性接続部材」に相当する。
　半導体素子３０と素子搭載用基板２０との間にアンダーフィル７２が充填されている。アンダーフィル７２により、基板電極２４ａと素子電極３２とのはんだ接合部分が保護されるとともに、半導体素子３０と素子搭載用基板２０との間に働く応力が緩和されるため、半導体モジュール１０の接続信頼性がより向上する。
　ここで、基板電極２４ａの特徴について説明する。
　隣接する基板電極２４ａを結ぶ線に沿った断面において、基板電極２４ａの幅Ｌ１は、基板電極２４ａに対応する素子電極３２の幅Ｌ２に比べて狭くなっている。より好ましくは、隣接する基板電極２４ａの間隔をＳ１、隣接する素子電極３２の間隔をＳ２としたとき、基板電極２４ａのＬ／Ｓ比（Ｌ１／Ｓ１）は、素子電極３２のＬ／Ｓ（Ｌ２／Ｓ２）より小さい。また、基板電極２４ａの高さＨは、基板電極２４ａの幅Ｌ１より高くなっており、Ｈ＞Ｌ１という関係が成り立っている。
　この他、基板電極２４ａの側面は、基板電極２４ａの内側に傾いている。言い換えると、素子搭載用基板２０の基板面と基板電極２４ａの側面とのなす角は鋭角である。この条件を満たせば、基板電極２４ａの形状は特に限定されないが、たとえば、隣接する基板電極２４ａを結ぶ線に沿った断面における基板電極２４ａの形状は略三角形状、台形状である。
　以上の構成によれば、はんだ７０が横方向（素子搭載用基板２０の面方向）に広がることが抑制されるため、はんだ７０が素子電極３２の幅Ｌ２の内側に収まる。より具体的には、はんだ７０は、基板電極２４ａの底辺２４ｂ（基板電極２４と絶縁樹脂層２２とが接する部分）と素子電極３２の上辺３２ａを結ぶ領域内に収まっている。これにより、隣接する基板電極２４ａおよび素子電極３２の間で短絡が生じることが抑制されるため、はんだ接続時の接続信頼性を損なうことなく、基板電極２４ａおよび素子電極３２の狭ピッチ化を図ることができる。
　また、はんだ７０が横方向に広がることが抑制されることにより、素子搭載用基板２０と半導体素子３０との間にアンダーフィル７２を充填する場合に、はんだ７０がアンダーフィル７２の充填の障害になることが低減し、素子搭載用基板２０と半導体素子３０との隙間にアンダーフィル７２が入り込みやすくなる。この結果、アンダーフィル充填時にボイドが発生することが抑制される。
　また、基板電極２４ａの高さＨが基板電極２４ａの幅Ｌ１より高い構造により、基板電極２４ａの幅Ｌ１を狭めることができる。このため、隣接する基板電極２４ａを狭ピッチ化あるいは高密度化することができる。
　（実施の形態１の半導体モジュールの製造方法）
　実施の形態１に係る素子搭載用基板および半導体モジュールの製造方法について図３および図４を参照して説明する。
　まず、図３（Ａ）に示すように、一方の主表面に銅箔２３が、他方の主表面に銅箔２５が貼り付けられた絶縁樹脂層２２を準備する。
　次に、図３（Ｂ）に示すように、ドリル加工、レーザ加工などの掘削加工により、絶縁樹脂層２２および銅箔２３、２５の所定領域にビアホール２７を形成する。
　次に、図３（Ｃ）に示すように、無電解めっき法および電解めっき法により、ビアホール２７に銅を充填してビア導体４０を形成するとともに、絶縁樹脂層２２の主表面に設けられた銅箔２３、２５を厚膜化する。
　そして、図３（Ｄ）に示すように、銅箔２３、２５の上にそれぞれ配線層２４、２４ａ、２６に対応したレジストパターン１００ａ、１００ｂ、１０２を形成する。
　次に、図３（Ｅ）に示すように、レジストパターン１００ａ、１００ｂをマスクとしてウェットエッチングを行うことにより、絶縁樹脂層２２の一方の主表面に基板電極２４ａを含む所定パターンの配線層２４を形成する。ここで、隣接する基板電極２４ａを結ぶ線に沿った断面において、基板電極２４ａの幅Ｌ１が当該基板電極２４ａに対応する素子電極の幅よりも狭くなるようにパターニングを行う。より好ましくは、隣接する基板電極２４ａを結ぶ線に沿った断面において、基板電極２４ａの幅Ｌ１と隣接する基板電極２４ａの間隔Ｓ１との比（Ｌ１／Ｓ１）が、基板電極２４ａに対応する素子電極の幅Ｌ２と隣接する素子電極の間隔Ｓ２との比（Ｌ２／Ｓ２）より小さくなるようにパターニングを行う。また、基板電極２４ａの側面が基板電極２４ａの形成領域の内側に傾くようにパターニングを行う。
　一方、レジストパターン１０２をマスクとしてウェットエッチングを行うことにより、絶縁樹脂層２２の他方の主表面に配線層２６を形成する。
　次に、図４（Ａ）に示すように、フォトソルダーレジストを積層した後、周知のフォトリソグラフィ法を用いて、絶縁樹脂層２２の一方の主表面に基板電極２４ａを除く配線層２４を被覆する保護層２８を形成する。また、絶縁樹脂層２２の他方の主表面において、所定領域に配線層２６のランド領域が露出するような開口部を有する保護層２８を形成する。
　次に、図４（Ｂ）に示すように、電極形成面に素子電極３２および銅ポスト３３が設けられ、銅ポスト３３にはんだ７０が搭載された半導体素子３０を準備する。そして、半導体素子３０を素子搭載用基板２０の上に搭載する。銅ポスト３３は、たとえば、めっき法を用いて形成することができる。
　次に、図４（Ｃ）に示すように、素子搭載用基板２０に半導体素子３０が搭載された状態で、リフロー工程により対応する銅ポスト３３と基板電極２４ａとをはんだ７０を用いて接合し、銅ポスト３３と基板電極２４ａとを電気的に接続する。
　次に、図４（Ｄ）に示すように、半導体素子３０と素子搭載用基板２０との間にアンダーフィル７２を充填する。また、保護層２８に設けられた開口部において、配線層２６にはんだボール８０を搭載する。
　以上の工程により、実施の形態１に係る半導体モジュール１０を製造することができる。なお、図示は省略するが、トランスファーモールド法などを用いて、半導体素子３０を覆うように封止樹脂層により封止してもよい。
　（配線層パターンの他の例）
　図５は、基板電極を含む配線層パターンの他の例を示す平面図である。絶縁樹脂層２２の一方の主表面に設けられた保護層２８には、搭載される半導体装置の外周部に対応して開口部Ｔが設けられている。開口部Ｔにおいて、基板電極２４ａおよび絶縁樹脂層２２が露出している。基板電極２４ａは、配線層２４の一方の端部に形成されており、配線層２４の他方の端部に、ビア導体４０が接続されている。言い換えると、基板電極２４からビア導体４０まで配線層２４により引き回されている。ビア導体４０の設置位置は、半導体装置の搭載領域内（図５の開口部Ｔの内部）と、半導体装置の搭載領域外（図５の開口部Ｔの外部）の所定箇所に設けられている。
　開口部Ｔにおいて、複数の基板電極２４ａが併設されている。基板電極２４ａの長手方向は、開口部Ｔを横切るように設けられている。図５のＣ－Ｃ’線は、隣接する基板電極２４ａを最短距離で結ぶ線に相当し、図１の半導体素子３０の搭載領域は、図５のＣ－Ｃ’線に沿った断面図に相当する。
　（実施の形態２）
　図６は、実施の形態２に係る半導体モジュールの構成を示す断面図である。
　半導体モジュール１０は、素子搭載用基板２０および半導体素子３０を備える。
　半導体素子３０は、たとえば、Ｐ型シリコンウエハを用いて形成される。実装面となる主表面ＭＳ１に集積回路に接続された素子電極３２が設けられている。素子電極３２の材料として、アルミニウム（Ａｌ）や銅（Ｃｕ）などの金属が用いられる。素子電極３２は、本発明の「第２の電極」に相当する。
　素子電極３２が露出するように半導体素子３０の主表面ＭＳ１上に保護層３４が形成されている。保護層３４として、シリコン酸化膜（ＳｉＯ２）やシリコン窒化膜（ＳｉＮ）やポリイミド（ＰＩ）膜などが好適である。
　素子搭載用基板２０は、絶縁樹脂層２２と、絶縁樹脂層２２の半導体素子３０と反対側の主表面に設けられた配線層２４（再配線）と、配線層２４と一体的に形成され、配線層２４から絶縁樹脂層２２側に突出している突起電極９０とを備える。突起電極９０は、本発明の「第１の電極」に相当する。なお、図６は、隣接する突起電極９０を最短距離で結ぶ線に沿った断面図に相当する。
　絶縁樹脂層２２は、絶縁性の樹脂からなり、たとえば加熱または加圧したときに塑性流動を引き起こす材料で形成されている。加圧したときに塑性流動を引き起こす材料としては、エポキシ系熱硬化型樹脂が挙げられる。絶縁樹脂層２２に用いられるエポキシ系熱硬化型樹脂は、たとえば、温度１６０℃、圧力８Ｍｐａの条件下で、粘度が１ｋＰａ・ｓの特性を有する材料であればよい。また、このエポキシ系熱硬化型樹脂は、たとえば温度１６０℃の条件下で、５～１５Ｍｐａで加圧した場合に、加圧しない場合と比較して、樹脂の粘度が約１／８に低下する。これに対して、熱硬化前のＢステージのエポキシ樹脂は、ガラス転移温度Ｔｇ以下の条件下では、樹脂を加圧しない場合と同程度に、粘性がなく、加圧しても粘性は生じない。また、このエポキシ系熱硬化型樹脂は、約３～４の誘電率を有する誘電体である。
　配線層２４は、絶縁樹脂層２２の半導体素子３０と反対側の主表面に設けられており、導電材料、好ましくは圧延金属、さらには圧延銅により形成される。圧延銅は、めっき処理等によって形成された銅からなる金属膜と比較すると、機械的強度の点において強いので、再配線のための材料として優れている。なお、配線層２４は電解銅などで形成されてもよい。本実施の形態においては、配線層２４と突起電極９０とは一体的に形成されており、それにより配線層２４と突起電極９０との接続が確実になっている。
　突起電極９０はその全体的な形状が、先端に近づくにつれて径が細くなっている。言い換えると、突起電極９０の側面は電極形成領域の内側に傾いたテーパ状となっている。言い換えると、配線層２４の面と突起電極９０の側面とのなす角は鋭角である。突起電極９０の先端（頂部面）の径および基面の径は、それぞれたとえば約４５μｍφおよび約６０μｍφである。また、突起電極９０の高さは、たとえば、２０μｍである。突起電極９０の頂部面と突起電極９０に対応する素子電極３２とは、はんだ７０により接合されている。
　隣接する突起電極９０を結ぶ線に沿った断面において、突起電極９０の基底部の幅Ｌ１は、突起電極９０に対応する素子電極３２の幅Ｌ２に比べて狭くなっている。より好ましくは、隣接する突起電極９０の基底部の間隔をＳ１、隣接する素子電極３２の間隔をＳ２としたとき、突起電極９０のＬ／Ｓ比（Ｌ１／Ｓ１）は、素子電極３２のＬ／Ｓ（Ｌ２／Ｓ２）より小さい。さらに、突起電極９０の形状は、先端に近づくにつれて径が細くなっているため、突起電極９０の頂部面の幅Ｌ１’は突起電極９０の基底部の幅Ｌ１より狭い。
　配線層２４の絶縁樹脂層２２と反対側の主表面には、配線層２４の酸化などを防ぐための保護層２８が設けられている。保護層２８としては、ソルダーレジスト層などが挙げられる。保護層２８の所定の領域には開口部が形成されており、開口部によって配線層２４の一部が露出している。開口部内には外部接続電極としてのはんだボール８０が形成され、はんだボール８０と配線層２４とが電気的に接続されている。はんだボール８０を形成する位置、すなわち開口部の形成領域は、たとえば再配線（配線層２４）で引き回した先の端部である。
　（実施の形態２の半導体モジュールの製造方法）
　実施の形態２に係る素子搭載用基板および半導体モジュールの製造方法について図７乃至図１１を参照して説明する。
　まず、図７（Ａ）に示すように、あらかじめ半導体基板３１の一方の主表面に素子電極３２および保護層３４が形成された半導体素子３０を用意する。具体的には、Ｐ型シリコン基板などの半導体基板３１に対して、周知のリソグラフィ技術、エッチング技術、イオン注入技術、成膜技術、及び熱処理技術などを組み合わせた半導体製造プロセスを用いて一方の主表面に所定の集積回路とその外周縁部に素子電極３２を形成する。素子電極３２の材料にはアルミニウムや銅などの金属が採用される。これらの素子電極３２を除いた半導体基板３１の主表面上に、半導体基板３１を保護するための絶縁性の保護層３４が形成されている。保護層３４としてはシリコン酸化膜（ＳｉＯ２）やシリコン窒化膜（ＳｉＮ）やポリイミド（ＰＩ）などが採用される。
　次に、図７（Ｂ）に示すように、保護層３４の開口部において露出する素子電極３２の上にスクリーン印刷法によりはんだ７０を搭載する。具体的には、樹脂とはんだ材をペースト状にしたはんだペーストをスクリーンマスクにより所望の箇所に印刷し、はんだ溶融温度に加熱することではんだ７０を形成する。
　一方、図８（Ａ）に示すように、図６に示したような突起電極９０の高さと配線層２４の厚さとの和より少なくとも大きい厚さを有する金属板としての銅板２００を用意する。銅板２００の厚さは、たとえば１２５μｍである。銅板２００としては圧延された銅からなる圧延金属が採用される。
　次に、図８（Ｂ）に示すように、リソグラフィ法により、突起電極の形成予定領域に対応したパターンに合わせてレジスト２１０を選択的に形成する。具体的には、ラミネーター装置を用いて銅板２００に所定膜厚のレジスト膜を貼り付け、突起電極９０のパターンを有するフォトマスクを用いて露光した後、現像することによって、銅板２００の上にレジスト２１０が選択的に形成される。なお、レジストとの密着性向上のために、レジスト膜のラミネート前に、銅板２００の表面に研磨、洗浄等の前処理を必要に応じて施すことが望ましい。なお、レジスト２１０を設けた面と反対側（上面側）の全面にはレジスト保護膜（図示せず）を形成して銅板２００を保護しておくことが望ましい。
　次に、図８（Ｃ）に示すように、レジスト２１０をマスクとして塩化第二鉄溶液などの薬液を用いたウェットエッチング処理を行うことにより、銅板２００の表面から突出する所定の円錐台パターンの突起電極９０を形成する。この際、突起電極９０はその先端部に近づくにつれて径（寸法）が細くなるテーパ状の側面部を有するように形成される。当該ウェットエッチング処理は、突起電極９０の基底部の径（幅）Ｌ１が、突起電極９０に対応する素子電極３２の幅Ｌ２（図１参照）よりも狭くなるような条件で行われる。本実施形態の突起電極９０における基底部の径、頂部の径、高さは、たとえばそれぞれ、１００～１４０μｍφ、５０μｍφ、２０～２５μｍである。
　次に、図８（Ｄ）に示すように、レジスト２１０およびレジスト保護膜を剥離剤を用いて剥離する。以上説明した工程により、銅板２００に突起電極９０が一体的に形成される。なお、レジスト２１０に代えて銀（Ａｇ）などの金属マスクを採用してもよい。この場合には銅板２００とのエッチング選択比が十分確保されるため、突起電極９０のパターニングのさらなる微細化を図ることが可能となる。
　次に、図９（Ａ）に示すように、真空ラミネート法を用いて、突起電極９０が設けられた側の銅板２００の表面に絶縁樹脂層２２を積層する。絶縁樹脂層２２としては、上述したように、加圧または加熱により可塑性または変形を引き起こす絶縁材料が用いられる。
　次に、図９（Ｂ）に示すように、Ｏ２プラズマエッチングを用いて、突起電極９０の頂部面が露出するように絶縁樹脂層２２を薄膜化する。
　次に、図９（Ｃ）に示すように、塩化第二鉄溶液などの薬液を用いたウェットエッチング処理などにより、突起電極９０が設けられた側と反対側の銅板２００の表面をエッチバックし銅板２００を薄膜化する。この際、突起電極９０が設けられた側にはレジスト保護膜（図示せず）を形成して突起電極９０および銅板２００を保護しておき、エッチング処理後にレジスト保護膜を除去する。これにより、所定の厚さ（配線層２４の厚さ）に加工され、所定の突起電極９０が一体的に設けられた銅板２００が形成される。本実施形態の銅板２００の厚さは約２０μｍである。
　次に、図１０（Ａ）に示すように、プレス機を構成する一対の平板プレート５００ａ、５００ｂの間に、半導体素子３０と、突起電極９０が一体的に形成された銅板２００とを設置する。この際に、対応する突起電極９０と素子電極３２との位置合わせを行う。
　次に、図１０（Ｂ）に示すように、プレス機を用いて加圧成形することにより、対応する突起電極９０と素子電極３２とが当接した状態で半導体素子３０と銅板２００とを圧着する。プレス加工時の圧力および温度は、それぞれ約１７ｋＮおよび２００℃である。この工程の際、またはこの工程の後、リフローによりはんだ７０を溶融し、はんだ７０により対応する突起電極９０と素子電極３２とを接合する。溶融したはんだ７０と突起電極９０の頂部面との濡れ性は、溶融したはんだ７０と絶縁樹脂層２２との濡れ性に比べて高いため、はんだ７０は突起電極９０の頂部面に引き寄せられ、突起電極９０の頂部面近傍において、はんだ７０の幅は突起電極９０の頂部面内に収まる。
　次に、図１１（Ａ）に示すように、リソグラフィ技術およびエッチング技術を用いて銅板２００を所定の配線パターンに加工することにより、配線層２４（再配線）を形成する。
　次に、図１１（Ｂ）に示すように、配線層２４および絶縁樹脂層２２の上に保護層（フォトソルダーレジスト層）２８を積層した後、フォトリソグラフィ法により保護層２８の所定領域（はんだボール搭載領域）に開口部を設ける。保護層２８は配線層２４の保護膜として機能する。保護層２８にはエポキシ樹脂などが採用され、その膜厚は、たとえば、約４０μｍである。
　次に、図１１（Ｃ）に示すように、保護層２８の開口部にスクリーン印刷法によりはんだボール８０を搭載する。具体的には、樹脂とはんだ材をペースト状にしたはんだペーストをスクリーンマスクにより所望の箇所に印刷し、はんだ溶融温度に加熱することではんだボール８０を形成する。
　以上の工程により実施の形態２に係る半導体モジュールを製造することができる。
　以上説明した半導体モジュール１０によれば、突起電極９０の頂部面近傍において、はんだ７０は突起電極９０の頂部面の幅Ｌ１’に収まる。突起電極９０の頂部面の幅Ｌ１’は、突起電極９０の基底部の幅Ｌ１より狭く、かつ、突起電極９０の基底部の幅Ｌ１は、突起電極９０に対応する素子電極３２の幅Ｌ２に比べて狭い。すなわち、はんだ７０の突起電極９０側における幅は素子電極３２の幅Ｌ２の内側に収まるように、横方向（素子搭載用基板２０の面方向）に広がることが抑制される。これにより、隣接する基板電極２４ａおよび素子電極３２の間で短絡が生じることが抑制されるため、はんだ接続時の接続信頼性を損なうことなく、基板電極２４ａおよび素子電極３２の狭ピッチ化を図ることができる。
　なお、本実施の形態では、はんだ７０は突起電極９０の頂部面と素子電極３２との間に設けられており、はんだ７０は突起電極９０の頂部面に接しているが、素子電極３２の幅Ｌ２の内側に収まっていれば、突起電極９０の側面に接していてもよい。
　具体的には、図１２に示す変形例のように、突起電極９０の先端部分の側面部分と絶縁樹脂層２２との間に隙間が生じており、この隙間にはんだ７０が入り込むことにより、突起電極９０の先端部分の側面にはんだ７０が接していてもよい。この場合においても、突起電極９０の側面部分の幅は、突起電極９０の基底部の幅Ｌ１より狭く、突起電極９０と接するはんだ７０の幅は、突起電極９０の基底部の幅Ｌ１より狭くなる。すなわち、はんだ７０の突起電極９０側における幅は素子電極３２の幅Ｌ２の内側に収まるように、横方向（素子搭載用基板２０の面方向）に広がることが抑制される。
　（携帯機器への適用）
　次に、本発明の半導体モジュールを備えた携帯機器について説明する。なお、携帯機器として携帯電話に搭載する例を示すが、たとえば、個人用携帯情報端末（ＰＤＡ）、デジタルビデオカメラ（ＤＶＣ）、音楽プレーヤ、及びデジタルスチルカメラ（ＤＳＣ）といった電子機器であってもよい。
　図１３は実施の形態に係る半導体モジュール１０を備えた携帯電話の構成を示す図である。携帯電話１１１１は、第１の筐体１１１２と第２の筐体１１１４が可動部１１２０によって連結される構造になっている。第１の筐体１１１２と第２の筐体１１１４は可動部１１２０を軸として回動可能である。第１の筐体１１１２には文字や画像等の情報を表示する表示部１１１８やスピーカ部１１２４が設けられている。第２の筐体１１１４には操作用ボタンなどの操作部１１２２やマイク部１１２６が設けられている。なお、本発明の各実施形態に係る半導体モジュールのいずれかがこうした携帯電話１１１１の内部に搭載されている。なお、このように、携帯電話に搭載した本発明の半導体モジュールとしては、各回路を駆動するための電源回路、ＲＦ発生するＲＦ発生回路、ＤＡＣ、エンコーダ回路、携帯電話の表示部に採用される液晶パネルの光源としてのバックライトの駆動回路などとして採用することが可能である。
　図１４は図１３に示した携帯電話の部分断面図（第１の筐体１１１２の断面図）である。本発明の実施形態に係る半導体モジュール１０は、はんだボール８０を介してプリント基板１１２８に搭載され、こうしたプリント基板１１２８を介して表示部１１１８などと電気的に接続されている。また、半導体モジュール１０の裏面側（はんだボール８０とは反対側の面）には金属基板などの放熱基板１１１６が設けられ、たとえば、半導体モジュール１０から発生する熱を第１の筐体１１１２内部に篭もらせることなく、効率的に第１の筐体１１１２の外部に放熱することができるようになっている。
　本発明の実施形態に係る半導体モジュールを備えた携帯機器によれば、以下の効果を得ることができる。
　半導体モジュール１０において、基板側の第１の電極と半導体素子側の第２の電極との接続信頼性が向上した結果、半導体モジュール１０の動作信頼性が向上するので、こうした半導体モジュール１０を搭載した携帯機器の動作信頼性が向上する。
　放熱基板１１１６を介して半導体モジュール１０からの熱を効率的に外部に放熱することができるので、半導体モジュール１０の温度上昇が抑制され、導電性部材と配線層との間の熱応力が低減される。このため、放熱基板１１１６を設けない場合に比べ、半導体モジュール内の導電性部材が配線層から剥離することが防止され、半導体モジュール１０の信頼性（耐熱信頼性）が向上する。この結果、携帯機器の信頼性（耐熱信頼性）を向上させることができる。
　上記実施の形態で示した半導体モジュール１０は小型化が可能であるので、こうした半導体モジュール１０を搭載した携帯機器の薄型化・小型化を図ることができる。
　本発明は、上述の各実施の形態に限定されるものではなく、当業者の知識に基づいて各種の設計変更等の変形を加えることも可能であり、そのような変形が加えられた実施の形態も本発明の範囲に含まれうるものである。
　たとえば、上述の各実施の形態では、素子搭載用基板２０に設けられた電極と、半導体素子３０に設けられた電極とを電気的に接続する導電性接続部材として、はんだが用いられているが、導電性接続部材としては、はんだ以外に、銀ペーストなどの導電性ペーストを用いてもよい。
１０　半導体モジュール、２０　素子搭載用基板、２２　絶縁樹脂層、２４、２６　配線層
　本発明は、半導体素子が基板に実装された半導体モジュールに活用可能である。

Claims (8)

  1. 　第１の電極が設けられた基板と、
    　第２の電極が設けられた半導体素子と、
    　前記第１の電極と前記第２の電極とを接続する導電性接続部材と、
    　を備え、
    　隣接する前記第１の電極を最短距離で結ぶ線に沿った断面において、前記第１の電極の幅が、前記第１の電極に対応する前記第２の電極の幅に比べて狭く、かつ前記第１の電極の幅に比べて前記第１の電極の高さが高いことを特徴とする半導体モジュール。
  2. 　隣接する前記第１の電極を最短距離で結ぶ線に沿った断面において、
    　前記導電性接続部材が、前記第１の電極の底辺と前記第２の電極の上辺とを結ぶ領域内に収まっている請求項１に記載の半導体モジュール。
  3. 　隣接する前記第１の電極を最短距離で結ぶ線に沿った断面において、前記第１の電極の幅Ｌ１と隣接する前記第１の電極の間隔Ｓ１との比（Ｌ１／Ｓ１）が、前記第１の電極に対応する前記第２の電極の幅Ｌ２と隣接する前記第２の電極の間隔Ｓ２との比（Ｌ２／Ｓ２）より小さい請求項１または２に記載の半導体モジュール。
  4. 　隣接する前記第１の電極を最短距離で結ぶ線に沿った断面において、前記第１の電極の側面が電極形成領域の内側に傾いている請求項１乃至３のいずれか１項に記載の半導体モジュール。
  5. 　前記第１の電極が前記基板に設けられた配線層から前記半導体素子の側へ突出する突起電極である請求項１乃至４のいずれか１項に記載の半導体モジュール。
  6. 　隣接する前記第１の電極を最短距離で結ぶ線に沿った断面において、前記第１の電極の形状が略三角形または台形である請求項１乃至５のいずれか１項に記載の半導体モジュール。
  7. 　請求項１乃至６のいずれか１項に記載の半導体モジュールを備えることを特徴とする携帯機器。
  8. 　基板の一方の主表面に、隣接する基板電極を含む配線層をパターニングする配線形成工程と、
    　前記基板電極に対応して半導体素子に設けられた素子電極と前記基板電極とを導電性接続部材を用いて接続し、前記基板に前記半導体素子を搭載する素子搭載工程と、
    　を備え、
    　配線形成工程において、隣接する前記基板電極を最短距離で結ぶ線に沿った断面において、前記基板電極の幅が前記基板電極に対応する前記素子電極の幅よりも狭くなるように前記基板電極を形成することを特徴とする半導体モジュールの製造方法。
PCT/JP2009/006765 2008-12-10 2009-12-10 半導体モジュール、半導体モジュールの製造方法および携帯機器 WO2010067610A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/139,075 US20110241203A1 (en) 2008-12-10 2009-12-10 Semiconductor module, method for manufacturing semiconductor module, and portable apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008314960A JP2010141055A (ja) 2008-12-10 2008-12-10 半導体モジュール、半導体モジュールの製造方法および携帯機器
JP2008-314960 2008-12-10

Publications (1)

Publication Number Publication Date
WO2010067610A1 true WO2010067610A1 (ja) 2010-06-17

Family

ID=42242602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/006765 WO2010067610A1 (ja) 2008-12-10 2009-12-10 半導体モジュール、半導体モジュールの製造方法および携帯機器

Country Status (3)

Country Link
US (1) US20110241203A1 (ja)
JP (1) JP2010141055A (ja)
WO (1) WO2010067610A1 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102487020A (zh) * 2010-12-03 2012-06-06 新科金朋有限公司 形成引线上凸块互连的半导体器件和方法
JP2012109507A (ja) * 2010-11-16 2012-06-07 Stats Chippac Ltd 半導体素子およびフリップチップ相互接続構造を形成する方法
JP2012119648A (ja) * 2010-12-03 2012-06-21 Stats Chippac Ltd フリップチップ半導体ダイのパッドレイアウトを形成する半導体素子および方法
JP2015201661A (ja) * 2015-06-19 2015-11-12 ルネサスエレクトロニクス株式会社 半導体装置
CN105493278A (zh) * 2013-08-29 2016-04-13 高通股份有限公司 用于基板的超细间距和间隔互连
US9379084B2 (en) 2003-11-10 2016-06-28 STATS ChipPAC Pte. Ltd. Semiconductor device and method of self-confinement of conductive bump material during reflow without solder mask
US9865556B2 (en) 2003-11-10 2018-01-09 STATS ChipPAC Pte Ltd. Semiconductor device and method of self-confinement of conductive bump material during reflow without solder mask
US9922915B2 (en) 2003-11-10 2018-03-20 STATS ChipPAC Pte. Ltd. Bump-on-lead flip chip interconnection

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI538129B (zh) * 2010-12-06 2016-06-11 史達晶片有限公司 利用細長的遮罩開口在基板上形成窄互連位置的半導體裝置及方法
TWI527178B (zh) * 2010-12-15 2016-03-21 史達晶片有限公司 在無焊料遮罩的回焊期間的導電凸塊材料的自我局限的半導體裝置和方法
US9659893B2 (en) 2011-12-21 2017-05-23 Mediatek Inc. Semiconductor package
US8633588B2 (en) 2011-12-21 2014-01-21 Mediatek Inc. Semiconductor package
US9461008B2 (en) * 2012-08-16 2016-10-04 Qualcomm Incorporated Solder on trace technology for interconnect attachment
KR20140086531A (ko) * 2012-12-28 2014-07-08 삼성전기주식회사 패키지 기판 및 그 제조방법, 그리고 패키지 온 패키지 기판
US9806046B2 (en) * 2014-03-13 2017-10-31 Taiwan Semiconductor Manufacturing Co., Ltd Semiconductor device structure and manufacturing method
TWI538127B (zh) * 2014-03-28 2016-06-11 恆勁科技股份有限公司 封裝裝置及其製作方法
TWI624018B (zh) * 2014-08-04 2018-05-11 恆勁科技股份有限公司 封裝結構及其製法
JP6533680B2 (ja) * 2015-03-20 2019-06-19 新光電気工業株式会社 配線基板、半導体装置及び配線基板の製造方法
US11189555B2 (en) * 2019-01-30 2021-11-30 Delta Electronics, Inc. Chip packaging with multilayer conductive circuit
CN111554641A (zh) * 2020-05-11 2020-08-18 上海天马微电子有限公司 半导体封装件及其制作方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143838A (en) * 1981-02-27 1982-09-06 Mitsubishi Electric Corp Manufacture of semiconductor device
WO2004056162A1 (ja) * 2002-12-18 2004-07-01 K-Tech Devices Corp. フリップチップ実装用電子部品及びその製造法、回路板及びその製造法、実装体の製造法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8115310B2 (en) * 2009-06-11 2012-02-14 Texas Instruments Incorporated Copper pillar bonding for fine pitch flip chip devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143838A (en) * 1981-02-27 1982-09-06 Mitsubishi Electric Corp Manufacture of semiconductor device
WO2004056162A1 (ja) * 2002-12-18 2004-07-01 K-Tech Devices Corp. フリップチップ実装用電子部品及びその製造法、回路板及びその製造法、実装体の製造法

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10388626B2 (en) 2000-03-10 2019-08-20 STATS ChipPAC Pte. Ltd. Semiconductor device and method of forming flipchip interconnect structure
US8853001B2 (en) 2003-11-08 2014-10-07 Stats Chippac, Ltd. Semiconductor device and method of forming pad layout for flipchip semiconductor die
US9780057B2 (en) 2003-11-08 2017-10-03 STATS ChipPAC Pte. Ltd. Semiconductor device and method of forming pad layout for flipchip semiconductor die
US9379084B2 (en) 2003-11-10 2016-06-28 STATS ChipPAC Pte. Ltd. Semiconductor device and method of self-confinement of conductive bump material during reflow without solder mask
US9064858B2 (en) 2003-11-10 2015-06-23 Stats Chippac, Ltd. Semiconductor device and method of forming bump-on-lead interconnection
US9385101B2 (en) 2003-11-10 2016-07-05 STATS ChipPAC Pte. Ltd. Semiconductor device and method of forming bump-on-lead interconnection
US9865556B2 (en) 2003-11-10 2018-01-09 STATS ChipPAC Pte Ltd. Semiconductor device and method of self-confinement of conductive bump material during reflow without solder mask
US9899286B2 (en) 2003-11-10 2018-02-20 STATS ChipPAC Pte. Ltd. Semiconductor device and method of self-confinement of conductive bump material during reflow without solder mask
US9922915B2 (en) 2003-11-10 2018-03-20 STATS ChipPAC Pte. Ltd. Bump-on-lead flip chip interconnection
JP2012109507A (ja) * 2010-11-16 2012-06-07 Stats Chippac Ltd 半導体素子およびフリップチップ相互接続構造を形成する方法
JP2012119649A (ja) * 2010-12-03 2012-06-21 Stats Chippac Ltd バンプオンリード相互接続を形成する半導体素子および方法
CN102487020A (zh) * 2010-12-03 2012-06-06 新科金朋有限公司 形成引线上凸块互连的半导体器件和方法
JP2012119648A (ja) * 2010-12-03 2012-06-21 Stats Chippac Ltd フリップチップ半導体ダイのパッドレイアウトを形成する半導体素子および方法
CN105493278A (zh) * 2013-08-29 2016-04-13 高通股份有限公司 用于基板的超细间距和间隔互连
CN105493278B (zh) * 2013-08-29 2019-06-07 高通股份有限公司 用于基板的超细间距和间隔互连
JP2015201661A (ja) * 2015-06-19 2015-11-12 ルネサスエレクトロニクス株式会社 半導体装置

Also Published As

Publication number Publication date
US20110241203A1 (en) 2011-10-06
JP2010141055A (ja) 2010-06-24

Similar Documents

Publication Publication Date Title
WO2010067610A1 (ja) 半導体モジュール、半導体モジュールの製造方法および携帯機器
JP5091600B2 (ja) 半導体モジュール、半導体モジュールの製造方法および携帯機器
US8274148B2 (en) Semiconductor module
WO2009144960A1 (ja) 半導体モジュール、半導体モジュールの製造方法および携帯機器
JP2009206506A (ja) 素子搭載用基板およびその製造方法、半導体モジュールおよびこれを搭載した携帯機器
US8373281B2 (en) Semiconductor module and portable apparatus provided with semiconductor module
JP5135246B2 (ja) 半導体モジュールおよびその製造方法、ならびに携帯機器
US20100078813A1 (en) Semiconductor module and method for manufacturing the semiconductor module
JP2008053693A (ja) 半導体モジュール、携帯機器、および半導体モジュールの製造方法
JP2009224581A (ja) 素子搭載用基板およびその製造方法、半導体モジュールおよびその製造方法、電極構造、携帯機器
JP2013165087A (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
JP4588091B2 (ja) 半導体モジュールの製造方法
JP2009158830A (ja) 素子搭載用基板およびその製造方法、半導体モジュールおよびその製造方法、ならびに携帯機器
JP2009135391A (ja) 電子装置およびその製造方法
US20100140797A1 (en) Device mounting board and method of manufacturing the board, semiconductor module and method of manufacturing the module
JP5295211B2 (ja) 半導体モジュールの製造方法
JP5484705B2 (ja) 半導体モジュールおよび半導体モジュールを備える携帯機器
JP2010040721A (ja) 半導体モジュール、半導体装置、携帯機器、半導体モジュールの製造方法および半導体装置の製造方法
JP2010040610A (ja) 半導体モジュールおよび半導体モジュールを備える携帯機器
JP2008218521A (ja) 回路装置およびその製造方法
JP2011054670A (ja) 半導体モジュールおよびその製造方法、ならびに携帯機器
JP4806468B2 (ja) 半導体モジュール
JP5002633B2 (ja) 半導体モジュールおよび携帯機器
JP5022963B2 (ja) 突起電極の構造、素子搭載用基板およびその製造方法、半導体モジュール、ならびに携帯機器
JP2009246175A (ja) 素子搭載用基板、半導体モジュール、ならびに携帯機器

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: 09831716

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 13139075

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 09831716

Country of ref document: EP

Kind code of ref document: A1