JP4364928B2 - 導電性微粒子、異方性導電材料及び導電接続構造体 - Google Patents
導電性微粒子、異方性導電材料及び導電接続構造体 Download PDFInfo
- Publication number
- JP4364928B2 JP4364928B2 JP2008088231A JP2008088231A JP4364928B2 JP 4364928 B2 JP4364928 B2 JP 4364928B2 JP 2008088231 A JP2008088231 A JP 2008088231A JP 2008088231 A JP2008088231 A JP 2008088231A JP 4364928 B2 JP4364928 B2 JP 4364928B2
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- conductive
- metal layer
- nickel
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
- H05K3/323—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives by applying an anisotropic conductive adhesive layer over an array of pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1635—Composition of the substrate
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/54—Contact plating, i.e. electroless electrochemical plating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1653—Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1689—After-treatment
- C23C18/1692—Heat-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
-
- 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
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—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
- H01L2224/29101—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 less than 400°C
-
- 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
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—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
- H01L2224/29101—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 less than 400°C
- H01L2224/29111—Tin [Sn] 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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/2919—Material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
-
- 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
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
- H01L2224/29298—Fillers
- H01L2224/29299—Base material
- H01L2224/293—Base 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
- H01L2224/29301—Base 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 less than 400°C
- H01L2224/29311—Tin [Sn] 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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
- H01L2224/29298—Fillers
- H01L2224/29299—Base material
- H01L2224/2939—Base material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
-
- 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
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/29198—Material with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
- H01L2224/29298—Fillers
- H01L2224/29399—Coating material
- H01L2224/294—Coating 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
- H01L2224/29401—Coating 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 less than 400°C
- H01L2224/29411—Tin [Sn] as principal constituent
-
- 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
- H01L2924/01013—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
- H01L2924/01015—Phosphorus [P]
-
- 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
- H01L2924/01019—Potassium [K]
-
- 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
- H01L2924/01023—Vanadium [V]
-
- 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
- H01L2924/01025—Manganese [Mn]
-
- 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
- H01L2924/01027—Cobalt [Co]
-
- 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
- H01L2924/01046—Palladium [Pd]
-
- 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
- H01L2924/01049—Indium [In]
-
- 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
- H01L2924/0105—Tin [Sn]
-
- 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
- H01L2924/01051—Antimony [Sb]
-
- 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
- H01L2924/01073—Tantalum [Ta]
-
- 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
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
-
- 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
- H01L2924/0132—Binary 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
- H01L2924/013—Alloys
- H01L2924/0132—Binary Alloys
- H01L2924/01327—Intermediate phases, i.e. intermetallics compounds
-
- 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
- H01L2924/0133—Ternary 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
- H01L2924/013—Alloys
- H01L2924/0134—Quaternary 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
- H01L2924/013—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
- H01L2924/049—Nitrides composed of metals from groups of the periodic table
- H01L2924/0494—4th Group
- H01L2924/04941—TiN
-
- 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
- H01L2924/06—Polymers
- H01L2924/0665—Epoxy resin
-
- 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
- H01L2924/06—Polymers
- H01L2924/078—Adhesive characteristics other than chemical
- H01L2924/0781—Adhesive characteristics other than chemical being an ohmic electrical conductor
- H01L2924/07811—Extrinsic, i.e. with electrical conductive fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/10251—Elemental semiconductors, i.e. Group IV
- H01L2924/10253—Silicon [Si]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—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
- H01L2924/181—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- 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
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0221—Insulating particles having an electrically conductive coating
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/0425—Solder powder or solder coated metal powder
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Conductive Materials (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Non-Insulated Conductors (AREA)
Description
これを解決するためにハンダを球状にした、いわゆる「ハンダボール」でICやLSIを基板に接続するBGA(ボールグリッドアレイ)が開発された。BGAを用いれば、チップ又は基板に実装されたハンダボールを高温で溶融させ、基板とチップとを接続することができる。したがって、電子回路基板の生産効率が改善され、チップの実装密度が向上した電子回路基板を製造することができる。
例えば、ハンダボールを用いて、半導体が基板に接続されると、半導体と基板との線膨張係数が違うため、ハンダボールに応力が加わる。その結果、ハンダボールに亀裂が入り、断線することがあった。
以下に本発明を詳述する。
上記樹脂微粒子は特に限定されず、例えば、ポリオレフィン樹脂、アクリル樹脂、ポリアルキレンテレフタレート樹脂、ポリスルホン樹脂、ポリカーボネート樹脂、ポリアミド樹脂、フェノールホルムアルデヒド樹脂、メラミンホルムアルデヒド樹脂、ベンゾグアナミンホルムアルデヒド樹脂、尿素ホルムアルデヒド樹脂等で構成される樹脂微粒子が挙げられる。
上記ポリオレフィン樹脂は特に限定されず、ポリエチレン樹脂、ポリプロピレン樹脂、ポリスチレン樹脂、ポリイソブチレン樹脂、ポリブタジエン樹脂、ポリ塩化ビニル樹脂、ポリ塩化ビニリデン樹脂、ポリテトラフルオロエチレン樹脂等が挙げられる。
上記アクリル樹脂は特に限定されず、ポリメチルメタクリレート樹脂、ポリメチルアクリレート樹脂等が挙げられる。
これらの樹脂は、単独で用いられてもよいし、2種以上が併用されてもよい。
K値(N/mm2)=(3/√2)・F・S−3/2・R−1/2
F:樹脂微粒子の10%圧縮変形における荷重値(N)
S:樹脂微粒子の10%圧縮変形における圧縮変位(mm)
R:樹脂微粒子の半径(mm)
なお、上記樹脂微粒子の平均粒子径は、光学顕微鏡、又は、電子顕微鏡を用いて無作為に選んだ50個の樹脂微粒子を観察して得られた直径の平均値を意味する。
上記重合法による方法は特に限定されず、乳化重合、懸濁重合、シード重合、分散重合、分散シード重合等の重合法による方法が挙げられる。
本発明では、低融点金属層に錫を含有することで、低融点金属層の強度等を向上させることができる。更に、低融点金属層にニッケルが特定の割合で含有されるため、本発明の導電性微粒子と電極とを接続させた場合、導電性微粒子と電極との界面に、微細な金属間化合物の結晶組織が生成される。微細な金属間化合物の結晶組織がアンカー効果を発揮するため、落下等による衝撃が加わっても電極と導電性微粒子との接続界面が破壊されず、断線が生じない。
また、上記低融点金属層は、錫及びニッケルを必須金属として含有し、更に、銀、アンチモン、銅、ビスマス、インジウム、ゲルマニウム、アルミニウム、亜鉛等の金属を含有してもよい。上記低融点金属層として、錫/ニッケル、錫/ニッケル/銀、錫/ニッケル/亜鉛、錫/ニッケル/銀/銅、錫/ニッケル/ビスマス等を含有する低融点金属層が挙げられる。
特に本発明では、低融点金属層の融点が低下し、低融点金属層の強度が向上することから、錫/ニッケル/銀を含有する低融点金属層を用いることが好ましい。
なお、上記低融点金属層の厚さは、無作為に選んだ10個の導電性微粒子の断面を走査型電子顕微鏡(SEM)により観察して測定し、測定値を算術平均した厚さである。
なお、上記金属層は上記樹脂微粒子に直接形成してもよい。また、上記金属層と上記樹脂微粒子との間に、ニッケル層等の下地金属層を介在させてもよい。
なお、上記金属層の厚さは、無作為に選んだ10個の導電性微粒子の断面を走査型電子顕微鏡(SEM)により観察して測定し、測定値を算術平均した厚さである。
なお、上記バリア層の厚さは、無作為に選んだ10個の導電性微粒子の断面を走査型電子顕微鏡(SEM)により観察して測定し、測定値を算術平均した厚さである。
上記銅層を形成させる方法は特に限定されず、例えば、電解メッキ法、無電解メッキ法による方法が挙げられる。
特に、バリア層がニッケル層の場合は、上記ニッケル層を形成させる方法は特に限定されず、例えば、無電解メッキ法、電解メッキ法による方法が挙げられる。
上記低融点金属層を形成させる方法は特に限定されず、例えば、電解メッキ法による方法が挙げられる。
上記ビニル樹脂は特に限定されないが、酢酸ビニル樹脂、アクリル樹脂、スチレン樹脂等が挙げられる。上記熱可塑性樹脂は特に限定されないが、ポリオレフィン樹脂、エチレン−酢酸ビニル共重合体、ポリアミド樹脂等が挙げられる。上記硬化性樹脂は特に限定されないが、エポキシ樹脂、ウレタン樹脂、ポリイミド樹脂、不飽和ポリエステル樹脂が挙げられる。上記熱可塑性ブロック共重合体は特に限定されないが、スチレン−ブタジエン−スチレンブロック共重合体、スチレン−イソプレン−スチレンブロック共重合体、スチレン−ブタジエン−スチレンブロック共重合体の水素添加物、スチレン−イソプレン−スチレンブロック共重合体の水素添加物等が挙げられる。これらの樹脂は、単独で用いられてもよいし、2種以上が併用されてもよい。
また、上記硬化性樹脂は、常温硬化型樹脂、熱硬化型樹脂、光硬化型樹脂、湿気硬化型樹脂のいずれの硬化型樹脂であってもよい。
また、上記バインダー樹脂と、本発明の導電性微粒子とを混合することなく、別々に用いて異方性導電材料としてもよい。
(1)樹脂微粒子の作製
ジビニルベンゼン50重量部と、テトラメチロールメタンテトラアクリレート50重量部とを共重合させ、樹脂微粒子(平均粒子径240μm、CV値0.42%)を作製した。
得られた樹脂微粒子を無電解ニッケルメッキし、樹脂微粒子の表面に厚さ0.3μmの下地ニッケルメッキ層を形成させた。次いで、下地ニッケルメッキ層が形成された樹脂微粒子を電解銅メッキし、厚さ10μmの銅層を形成させた。更に、錫、ニッケル、及び、銀を含有する電解めっき液を用いて、電解メッキし、厚さ25μmの低融点金属層を形成させ、樹脂微粒子の表面に、銅層、低融点金属層(錫、ニッケル、及び、銀)が順次形成された導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。
得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル0.01重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例1と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル0.2重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例1と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル3.0重量%であり、残部は錫であった。
実施例1で作製した樹脂微粒子を無電解ニッケルメッキし、樹脂微粒子の表面に厚さ0.3μmの下地ニッケルメッキ層を形成させた。次いで、下地ニッケルメッキ層が形成された樹脂微粒子を電解銅メッキし、厚さ10μmの銅層を形成させた。更に、銅層が形成された樹脂微粒子を無電解ニッケルメッキし、厚さ1μmのニッケル層を形成させた。更に、錫、ニッケル、及び、銀を含有する電解めっき液を用いて、電解メッキし、厚さ25μmの低融点金属層を形成させ、樹脂微粒子の表面に、銅層、ニッケル層、低融点金属層(錫、ニッケル、及び、銀)が順次形成された導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は312μm、CV値は1.10%であった。
得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル0.01重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例4と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は312μm、CV値は1.10%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル0.2重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例4と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は312μm、CV値は1.10%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル3.0重量%であり、残部は錫であった。
実施例1で作製した樹脂微粒子を無電解ニッケルメッキし、樹脂微粒子の表面に厚さ0.3μmの下地ニッケルメッキ層を形成させた。次いで、下地ニッケルメッキ層が形成された樹脂微粒子を電解銅メッキし、厚さ10μmの銅層を形成させた。更に、錫、ニッケル、銀、及び、銅を含有する電解めっき液を用いて、電解メッキし、厚さ25μmの低融点金属層を形成させ、樹脂微粒子の表面に、銅層、低融点金属層(錫、ニッケル、銀、及び、銅)が順次形成された導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.15%であった。
得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、銅0.5重量%、ニッケル0.2重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液に代えて、錫、及び、銀を含有する電解めっき液を使用したこと以外は、実施例1と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。
錫、ニッケル、及び、銀を含有する電解めっき液に代えて、錫、及び、銀を含有する電解めっき液を使用したこと以外は、実施例4と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は312μm、CV値は1.10%であった。
錫、ニッケル、銀、及び、銅を含有する電解めっき液に代えて、錫、銀、及び、銅を含有する電解めっき液を使用したこと以外は、実施例7と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.15%であった。
錫、銀、及び、銅で構成されるハンダボール(千住金属工業社製「M705」平均粒子径300μm(錫:銀:銅=96.5重量%:3重量%:0.5重量%))を導電性微粒子として用いた。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例1と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル0.001重量%であり、残部は錫であった。
錫、ニッケル、及び、銀を含有する電解めっき液中のニッケル濃度を調整したこと以外は、実施例1と同様に導電性微粒子を作製した。なお、導電性微粒子の平均粒子径は310μm、CV値は1.05%であった。得られた導電性微粒子を、蛍光X線分析装置(島津製作所社製「EDX−800HS」)で分析したところ、低融点金属層に含有される金属の合計に占める各金属の含有量は、銀3.2重量%、ニッケル5.0重量%であり、残部は錫であった。なお、比較例6で得られた導電性微粒子は電極に実装することができなかったため、落下強度試験は行わなかった。
実施例1〜7及び比較例1〜6で得られた導電性微粒子について以下の評価を行った。結果を表1に示した。
シリコンチップ(縦6mm×横6mm)上に0.5mmピッチで112個設けられた電極ランド(直径280μm)にフラックス(クックソンエレクトロニクス社製「WS−9160−M7」)を塗布した。すべての電極ランドに、得られた導電性微粒子を配置し、リフロー(加熱温度250℃、30秒間)し、導電性微粒子を電極ランドに実装した。
次いで、銅電極(直径305μm)が形成されたプリント基板にハンダペースト(千住金属工業社製「M705−GRN360−K2−V」)を塗布した。導電性微粒子が実装されたシリコンチップ15個を、プリント基板に配置し、リフロー(加熱温度250℃、30秒間)し、シリコンチップ15個をプリント基板に実装し、導電接続構造体を得た。
JEDEC規格JESD22−B111に従い、得られた導電接続構造体の落下強度試験を行った。
得られた導電接続構造体は、デイジーチェーン回路が形成されているため、1箇所の電極ランドの断線でも検出することができる。
なお、電極ランドは、電極ランドの最表面に向かって、銅層、ニッケル−リン層、金層が順次形成されていた。
落下強度試験は以下の基準で評価した。
◎:15個のシリコンチップのすべてが断線する落下回数が100回以上であった。
△:15個のシリコンチップのすべてが断線する落下回数が50回以上100回未満であった。
×:15個のシリコンチップのすべてが断線する落下回数が50回未満であった。
Claims (5)
- 電極間の導電接続に用いられる導電性微粒子であって、
樹脂微粒子の表面に、銅層、錫及びニッケルを含有する低融点金属層が順次形成されており、
前記低融点金属層に含有される金属の合計に占めるニッケルの含有量が0.01〜3.0重量%である
ことを特徴とする導電性微粒子。 - 銅層と錫及びニッケルを含有する低融点金属層との間にニッケル層が形成されていることを特徴とする請求項1記載の導電性微粒子。
- 請求項1又は2記載の導電性微粒子がバインダー樹脂に分散されてなることを特徴とする異方性導電材料。
- 請求項1又は2記載の導電性微粒子を用いて導電接続されていることを特徴とする導電接続構造体。
- 請求項3記載の異方性導電材料を用いて導電接続されていることを特徴とする導電接続構造体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008088231A JP4364928B2 (ja) | 2007-04-13 | 2008-03-28 | 導電性微粒子、異方性導電材料及び導電接続構造体 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007106320 | 2007-04-13 | ||
JP2007106319 | 2007-04-13 | ||
JP2008088231A JP4364928B2 (ja) | 2007-04-13 | 2008-03-28 | 導電性微粒子、異方性導電材料及び導電接続構造体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008282801A JP2008282801A (ja) | 2008-11-20 |
JP4364928B2 true JP4364928B2 (ja) | 2009-11-18 |
Family
ID=40143418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008088231A Active JP4364928B2 (ja) | 2007-04-13 | 2008-03-28 | 導電性微粒子、異方性導電材料及び導電接続構造体 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8609246B2 (ja) |
JP (1) | JP4364928B2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8493746B2 (en) * | 2009-02-12 | 2013-07-23 | International Business Machines Corporation | Additives for grain fragmentation in Pb-free Sn-based solder |
KR20110135858A (ko) | 2009-02-27 | 2011-12-19 | 제온 코포레이션 | 리튬 이온 2 차 전지용 부극 활물질 및 리튬 이온 2 차 전지 |
JP2010238615A (ja) * | 2009-03-31 | 2010-10-21 | Sekisui Chem Co Ltd | 導電性微粒子、異方性導電材料、及び、接続構造体 |
US8506850B2 (en) | 2009-03-31 | 2013-08-13 | Sekisui Chemical Co., Ltd. | Conductive fine particles, anisotropic conductive element, and connection structure |
KR101043956B1 (ko) | 2009-07-31 | 2011-06-24 | 전자부품연구원 | 비등방성 입자배열체 및 그 제조 방법 |
US8498127B2 (en) * | 2010-09-10 | 2013-07-30 | Ge Intelligent Platforms, Inc. | Thermal interface material for reducing thermal resistance and method of making the same |
TWI476883B (zh) * | 2012-11-15 | 2015-03-11 | Ind Tech Res Inst | 焊料、接點結構及接點結構的製作方法 |
JP6172573B2 (ja) | 2013-11-29 | 2017-08-02 | 日立金属株式会社 | はんだ接合材料とその製造方法、及びはんだ接合用部材、並びに太陽電池モジュール |
JP6397742B2 (ja) * | 2013-12-03 | 2018-09-26 | 積水化学工業株式会社 | 導電性粒子、導電材料及び接続構造体 |
KR102307062B1 (ko) * | 2014-11-10 | 2021-10-05 | 삼성전자주식회사 | 반도체 소자, 반도체 소자 패키지 및 조명 장치 |
WO2018174066A1 (ja) * | 2017-03-23 | 2018-09-27 | 積水化学工業株式会社 | 導電性粒子、導電材料及び接続構造体 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3573008A (en) * | 1968-05-02 | 1971-03-30 | Hudson Wire Co | Composite metal article of copper material with a coat of nickel and tin |
KR100377232B1 (ko) | 1998-03-26 | 2003-03-26 | 니혼 슈페리어 샤 가부시키 가이샤 | 무연땜납합금 |
JP2001220691A (ja) | 2000-02-03 | 2001-08-14 | Okuno Chem Ind Co Ltd | 導電性微粒子 |
EP1329911A4 (en) | 2000-08-04 | 2006-11-08 | Sekisui Chemical Co Ltd | CONDUCTIVE FINE PARTICLES, FINE PARTICLE ELECTRODEPOSITION METHOD, AND SUBSTRATE STRUCTURAL BODY |
US6610591B1 (en) * | 2000-08-25 | 2003-08-26 | Micron Technology, Inc. | Methods of ball grid array |
KR101178745B1 (ko) * | 2004-07-15 | 2012-09-07 | 세키스이가가쿠 고교가부시키가이샤 | 도전성 미립자, 도전성 미립자의 제조 방법, 및 이방성도전 재료 |
KR100746330B1 (ko) * | 2005-11-24 | 2007-08-03 | 한국과학기술원 | 초음파를 이용한 전자부품간의 접속방법 |
-
2008
- 2008-03-28 JP JP2008088231A patent/JP4364928B2/ja active Active
- 2008-03-31 US US12/450,704 patent/US8609246B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8609246B2 (en) | 2013-12-17 |
JP2008282801A (ja) | 2008-11-20 |
US20100112353A1 (en) | 2010-05-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4364928B2 (ja) | 導電性微粒子、異方性導電材料及び導電接続構造体 | |
JP4313836B2 (ja) | 導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
KR101475100B1 (ko) | 도전성 미립자, 이방성 도전 재료 및 접속 구조체 | |
JP5580954B1 (ja) | 導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
EP2139009B1 (en) | Electroconductive fine particles, anisotropic electroconductive material, and electroconductive connection structure | |
JP5210236B2 (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP5275736B2 (ja) | 導電性微粒子の製造方法、導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
JP2009224059A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP6671881B2 (ja) | 導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
JP4313835B2 (ja) | 導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
JP5421667B2 (ja) | 導電性微粒子、異方性導電材料及び接続構造体 | |
JP6188527B2 (ja) | 導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
JP5438450B2 (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP5328434B2 (ja) | 導電性微粒子、及び、導電接続構造体 | |
JP5534745B2 (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP5480576B2 (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP5275735B2 (ja) | 導電性微粒子の製造方法、導電性微粒子、異方性導電材料、及び、導電接続構造体 | |
JP2011113804A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2009224060A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2009224058A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2010238615A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2011076939A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2011076782A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 | |
JP2011076940A (ja) | 導電性微粒子、異方性導電材料、及び、接続構造体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080826 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20081010 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20081030 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081209 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090206 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20090206 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090421 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090619 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090721 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090819 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120828 Year of fee payment: 3 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 4364928 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120828 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130828 Year of fee payment: 4 |