WO2015093362A1 - 実装体の製造方法、及び異方性導電フィルム - Google Patents
実装体の製造方法、及び異方性導電フィルム Download PDFInfo
- Publication number
- WO2015093362A1 WO2015093362A1 PCT/JP2014/082640 JP2014082640W WO2015093362A1 WO 2015093362 A1 WO2015093362 A1 WO 2015093362A1 JP 2014082640 W JP2014082640 W JP 2014082640W WO 2015093362 A1 WO2015093362 A1 WO 2015093362A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- binder
- conductive film
- anisotropic conductive
- conductive particles
- evaluation
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/02—Electrically-conducting adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
-
- 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
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
-
- 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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/0486—Replacement and removal of components
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/225—Correcting or repairing of printed circuits
-
- 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
-
- 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
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0133—Elastomeric or compliant polymer
-
- 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
- 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
- H05K2201/023—Hard particles, i.e. particles in conductive adhesive at least partly penetrating an electrode
-
- 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
- H05K2203/17—Post-manufacturing processes
- H05K2203/176—Removing, replacing or disconnecting component; Easily removable component
Definitions
- the present invention relates to a mounting body manufacturing method for electrically and mechanically connecting electronic components and an anisotropic conductive film.
- This application is filed with Japanese Patent Application No. 2013-259194 filed on December 16, 2013 in Japan and Japanese Patent Application No. 2014-235554 filed on November 20, 2014 in Japan. Claims priority as a basis and these applications are incorporated herein by reference.
- an anisotropic conductive film (ACF: Anisotropic Conductive Film) in which conductive particles are dispersed in an insulating binder is used as an adhesive film for electrically connecting electronic components.
- ACF Anisotropic Conductive Film
- the pressurizing direction is electrically connected via the conductive particles, while maintaining insulation between adjacent electrodes, and the electronic parts are mutually connected. It can be fixed so as not to peel off.
- a problem with ACF connection is that rework work is difficult compared to solder connection.
- the solder can be easily removed and reconnected by heating the product to be reworked.
- the ACF strongly bonds the electronic components to each other, which may damage the FPC circuit pattern.
- the cured ACF remains on the opposing part, so it is necessary to apply a dedicated repair agent and leave it for a long time, and then remove it with a cotton swab or the like.
- Patent Document 1 describes a technique that allows a new ACF to be pasted while the cured ACF remains, and allows re-bonding without using a repair agent.
- the technique of Patent Document 1 it is necessary to design the elastic modulus at 150 ° C. of a cured product of ACF to be 10 MPa or less, and thus it is difficult to obtain high reliability (heat resistance) of ACF connection.
- the present invention has been proposed in view of such a conventional situation, and provides a mounting body manufacturing method and an anisotropic conductive film capable of facilitating rework work and obtaining high connection reliability. provide.
- a method for manufacturing a mounting body according to the present invention includes a binder mainly composed of an epoxy resin, and a conductive material having a compression hardness K value of 10 kgf / mm 2 or more at 10% compression deformation.
- the relationship between the binder thickness A and the average particle diameter B of the conductive particles is 0.6 ⁇ B / A ⁇ 1.5 at 100 ° C. after curing of the binder.
- the anisotropic conductive film according to the present invention contains a binder mainly composed of an epoxy resin and conductive particles having a compression hardness K value of 10 kgf / mm 2 or more at 10% compression deformation,
- the relationship between the thickness A of the binder and the average particle diameter B of the conductive particles is 0.6 ⁇ B / A ⁇ 1.5, and the elastic modulus at 100 ° C. after curing of the binder is 50 MPa or more. It is characterized by being.
- the breakage and deformation of the wiring board can be suppressed, and even when there is a cured ACF residue on the reused wiring board, the conductive particles can penetrate and ensure conduction. Work can be facilitated. Moreover, since the elastic modulus of the binder after curing is high, heat resistance is improved and high connection reliability can be obtained.
- the manufacturing method of the mounting body according to the present embodiment includes a binder mainly composed of an epoxy resin, and conductive particles having a compression hardness K value at 10% compression deformation of 500 kgf / mm 2 or more,
- the relationship between the thickness A of the binder and the average particle diameter B of the conductive particles is 0.6 ⁇ B / A ⁇ 1.5, and the elastic modulus at 100 ° C. after curing of the binder is 50 MPa or more.
- the average particle diameter B is the particle diameter when the number or mass larger than a certain particle diameter occupies 50% of the total powder in the particle size distribution of the powder, and is usually represented by D50.
- the wiring board and the electronic member used in the method of manufacturing the mounting body are not particularly limited, and FOF (Film On Film), FOB (Film On Board), GOG (Glass On Glass), COG (Chip On).
- a glass applicable to a connection method such as Glass) is preferably used.
- one of the FOFs may be a flying lead wiring.
- an anisotropic conductive film is disposed at a predetermined position on the wiring board, and the wiring board and the anisotropic conductive film are temporarily bonded.
- the wiring board is heated by heating the anisotropic conductive film at a temperature at which the epoxy resin component contained in the anisotropic conductive film is not cured, for example, at a temperature of about 70 ° C. to 100 ° C., while slightly pressing the anisotropic conductive film.
- an anisotropic conductive film are temporarily bonded.
- the anisotropic conductive film is temporarily pressure-bonded onto the wiring board by an appropriate adhesive force of the anisotropic conductive film, and is positioned and fixed.
- the electronic member After the temporary pressure bonding, the alignment state of the anisotropic conductive film is confirmed, and if there is no misalignment or the like, the electronic member is placed at a predetermined position on the anisotropic conductive film. Then, it heats and press-bonds from above the electronic member. In this pressure bonding, heating is performed at a temperature equal to or higher than the curing temperature of the thermosetting resin component contained in the anisotropic conductive film. Moreover, in this pressure bonding, it pressurizes with the pressure which the electroconductive particle contained in an anisotropic conductive film is crushed. For example, the temperature and pressure at the time of the main pressure bonding vary depending on the type of anisotropic conductive film to be used, but the temperature is about 180 ° C.
- a mounting body is manufactured in which an electronic member is mounted on a wiring board via an anisotropic conductive film.
- the peel strength between the wiring board and the electronic member is preferably 5.0 N / cm or more and 9.0 N / cm or less. When the peel strength is within this range, when a so-called repair operation is required, it is possible to suppress the destruction and deformation of the wiring board and to reuse the wiring board.
- connection state such as connection strength
- electrical connection state such as conduction resistance
- the electronic member and the anisotropic conductive film are peeled off from the wiring board of the mounting body causing a defect in the connection state, and mechanically peeled off.
- the residue remaining on the surface of the wiring board is removed with a solvent or the like to clean the surface of the wiring board and then reused, but in this embodiment, the anisotropic conductive film Suppresses the breakage and deformation of the wiring board, and even when there is a cured ACF residue on the wiring board, the conductive particles penetrate through the wiring board, so that conduction can be ensured.
- the residue of an anisotropic conductive film can be confirmed by the image process using a glass substrate, for example.
- the relationship between the thickness A of the binder of the anisotropic conductive film and the average particle diameter B of the conductive particles is 0.6 ⁇ B / A ⁇ 1. 0.5, more preferably 0.6 ⁇ B / A ⁇ 1.0.
- the thickness A of the binder is preferably 15 ⁇ m or less.
- the peeling strength from the binder will be too high in the process of peeling the wiring board during repair work, causing damage or deformation of the wiring board, and the wiring board can be reused. There is a possibility of disappearing.
- the elastic modulus at 100 ° C. after curing of the binder is 50 MPa or more, more preferably 75 MPa or more and 800 MPa or less. If the elastic modulus after curing is too small, the conduction reliability in a high-temperature and high-humidity environment deteriorates. If the elastic modulus after curing is too large, a new ACF is pasted with the cured ACF residue remaining. When mounting, it becomes difficult for the conductive particles to penetrate the cured ACF residue, making it difficult to ensure conduction.
- the binder contains an epoxy resin, a film-forming resin, and a curing agent.
- an epoxy-based binder By using an epoxy-based binder, a high elastic modulus can be realized after curing, and conduction reliability in a high-temperature and high-humidity environment can be improved.
- the spring back generated by the acrylic binder can be suppressed, and a stable ACF connection can be realized.
- the epoxy resin it is preferable to use a bifunctional epoxy resin from the viewpoint of rapid curing.
- the bifunctional epoxy resin include bisphenol type epoxy resins such as bisphenol A type epoxy resin, bisphenol F type epoxy resin, and bisphenol S type epoxy resin; 1,4-dihydroxynaphthalene diglycidyl ether, 1,5-dihydroxynaphthalene Diglycidyl ether, 1,6-dihydroxynaphthalene diglycidyl ether, 2,6-dihydroxynaphthalene diglycidyl ether, 2,7-dihydroxynaphthalene diglycidyl ether, 1,1-bi-2-naphthol diglycidyl Bifunctional epoxy resins having a naphthalene skeleton such as ether; bipheno such as 4,4′-biphenol diglycidyl ether, 3,3 ′, 5,5′-tetramethyl-4,4′-biphenol diglycidyl ether Type epoxy resin; diglycidyl ether
- bifunctional epoxy resins may be substituted with a substituent having no adverse effect such as an alkyl group, an aryl group, an ether group or an ester group, and these can be used alone or in combination of two or more.
- a bisphenol type epoxy resin is suitably used in the present embodiment.
- the film-forming resin corresponds to a high molecular weight resin having an average molecular weight of 10,000 or more, and preferably has an average molecular weight of about 10,000 to 80,000 from the viewpoint of film formation.
- the film-forming resin include various resins such as phenoxy resin, polyester resin, polyurethane resin, polyester urethane resin, acrylic resin, polyimide resin, and butyral resin. These may be used alone or in combination of two or more. May be used. Among these, phenoxy resin is preferably used from the viewpoint of film formation state, connection reliability, and the like.
- the curing agent either an anion curable type or a cationic curable type may be used.
- the curing agent include an anionic curing agent such as polyamine and imidazole, a cationic curing agent such as a sulfonium salt, and a microcapsule type in which the surface of the imidazole compound particle is coated with a polymer cured product such as polyurethane or polyester.
- latent curing agents such as those.
- the binder preferably contains an elastomer made of acrylic rubber.
- the acrylic rubber is a copolymer containing, for example, acrylic acid ester and acrylonitrile as main components and containing at least one kind of acrylic acid, methacrylic acid, glycidyl acrylate, glycidyl methacrylate, and the like.
- the weight average molecular weight Mw of the acrylic rubber is preferably 200,000 to 1,000,000. When the weight average molecular weight Mw is small, the cohesive force is lowered, and it is difficult to obtain a high elastic modulus.
- the weight average molecular weight Mw can be calculated
- a binder does not mix
- the conductive particles preferably have a compression hardness K value at 10% compression deformation of 500 kgf / mm 2 or more, more preferably a compression hardness K value at 10% compression deformation of 3000 kgf / mm 2 or more. Since the conductive particles are hard, the conductive particles can penetrate even when there is a cured ACF residue remaining on the wiring board.
- the compression hardness K value at the time of 10% compression deformation of the conductive particles is calculated by the following formula (1).
- F and S are the load value (kgf) and compression displacement (mm) at the time of 10% compression deformation of the conductive particles, respectively, and R is the radius (mm).
- conductive particles known conductive particles used in anisotropic conductive films can be used.
- conductive particles of various metals and metal alloys such as nickel, iron, copper, aluminum, tin, lead, chromium, cobalt, silver and gold.
- nickel particles are preferably used from the viewpoints of particle hardness, connection reliability, and the like.
- the average particle diameter (D50) of the conductive particles is usually 1 to 20 ⁇ m, more preferably 2 to 10 ⁇ m.
- the anisotropic conductive film having such a configuration suppresses breakage of the wiring board and can ensure conduction because the conductive particles penetrate even when there is a cured ACF residue on the wiring board. Moreover, since the elastic modulus of the binder after curing is high, heat resistance is improved and high connection reliability can be obtained. ⁇ 4. Example>
- anisotropic conductive films having different average particle diameters (D50) of conductive particles, compression hardness of conductive particles, elastic modulus after curing of the binder, and thickness of the binder were prepared, and each anisotropic The temporary sticking property of the conductive film was evaluated.
- the mounting body of flexible substrates (FPC) was produced using each anisotropic conductive film, and FPC peeling strength and the damage state of FPC were evaluated.
- the wiring board was peeled from the ACF package, a new ACF was attached with the cured ACF residue remaining, and re-mounting was performed, and then the initial conduction resistance and conduction reliability were evaluated.
- the present invention is not limited to these examples.
- Judgment was made based on the number of successes of the temporary adhesion sample preparation process 10 times.
- the case where the temporary adhesion sample was successfully produced 10 times was evaluated as “ ⁇ ”.
- the case where the preparation of the temporary adhesion sample was successful 5 to 9 times was evaluated as “ ⁇ ”.
- the case where the preparation of the temporary adhesion sample was successful 0 to 4 times was evaluated as “x”.
- Non-destructive and reusable items are 10/10 when they are 10/10, non-destructible and reusable items are 8/10 or more and less than 9/10, and are non-destructive and reusable The case where possible was 5/10 or more and less than 7/10 was evaluated as “ ⁇ ”, and the case where non-destructive and reusable was less than 4/10 was evaluated as “x”.
- the FPC-B is peeled off from the mounted body of flexible substrates (FPC-A, FPC-B) manufactured using an anisotropic conductive film, and a new APC is left on the FPC-B in which the cured ACF residue remains.
- ACF was pasted and FPC-A was remounted.
- initial conduction resistance and conduction resistance after a TH test (Thermal Humidity Test) at a temperature of 85 ° C. and a humidity of 85% RH for 1000 hours were measured.
- the conduction resistance was measured by a 4-terminal method using a digital multimeter (digital multimeter 7561, manufactured by Yokogawa Electric Corporation).
- the initial evaluation of the conduction resistance and the evaluation of the conduction reliability are “ ⁇ ” when the conduction resistance is less than 0.5 ⁇ , “ ⁇ ” when the conduction resistance is 0.5 ⁇ or more and less than 1.0, and the conduction resistance is When the substrate was 1.0 ⁇ or more, “ ⁇ ” was given, and when the flexible substrate was peeled off during rework, FPC-B was broken and could not be crimped.
- Anisotropic conductive film was prepared according to Formulations 1-9.
- Table 1 shows Formulations 1 to 8 mainly composed of epoxy resin.
- Epoxy resin EP-828 (Mitsubishi Chemical Corporation) Phenoxy resin: YP-50 (manufactured by Toto Kasei) Curing agent: NOVACURE 3941HP (Asahi Kasei E-Materials) Elastomer: Teisan resin SG-80H (manufactured by Nagase ChemteX), weight average molecular weight 350,000 silane coupling agent: A-187 (manufactured by Momentive Performance Materials) Conductive particles A: nickel particles, average particle diameter (D50) 6 ⁇ m, 10% K value 4000 kgf / mm 2 Conductive particles B: nickel particles, average particle diameter (D50) 10 ⁇ m, 10% K value 4000 kgf / mm 2 Conductive particles C: nickel particles, average particle diameter (D50) 20 ⁇ m, 10% K value 4000 kgf / mm 2 Conductive particles D: Micropearl AUL (manufactured by Sekisui Chemical Co., Ltd.), metal plating resin particles
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 6 set to 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- the flexible substrate B (FPC-B) is peeled from the mounting body, and a new anisotropic conductive film is pasted on the flexible substrate B in a state where the cured ACF residue remains, and the flexible substrate A1 (FPC-A1). ) was reimplemented.
- the mounting body before and after reworking was produced under the same pressure bonding conditions.
- the peel strength of the flexible substrate in this mounting body was 7.9 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 6 set to 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- the flexible substrate B (FPC-B) is peeled from the mounting body, and a new anisotropic conductive film is pasted on the flexible substrate B in a state where the cured ACF residue remains, and the flexible substrate A2 (FPC-A2) ) was reimplemented.
- the mounting body before and after reworking was produced under the same pressure bonding conditions.
- the peel strength of the flexible substrate in this mounting body was 7.9 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 6 set to 4 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 1.5.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (triangle
- a mounting body was produced in the same manner as in Example 1.
- the peel strength of the flexible substrate in this mounting body was 7.2 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 6 set to 10 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.6.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peel strength of the flexible substrate in this mounting body was 8.4 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 6 set to 3 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 2.0.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary sticking property of this anisotropic conductive film was x.
- Example 2 Using this anisotropic conductive film, a mounting body was produced in the same manner as in Example 1.
- the peel strength of the flexible substrate in this mounted body was 6.0 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 6 set to 12 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.5.
- the elasticity modulus in 100 degreeC of a binder was 80 Mpa, and the evaluation was (circle).
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 8.9 N / cm, and the evaluation after peeling of the flexible substrate B was x.
- the evaluation of the initial conduction resistance after re-mounting was xx, and the evaluation of the conduction resistance after the high-temperature and high-humidity test was xx.
- an anisotropic conductive film was prepared with the binder A of Formulation 7 having a thickness A of 12 ⁇ m.
- the average particle diameter B of the conductive particles was 10 ⁇ m, and B / A was 0.83.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 8.7 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was “good”
- the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 7 set to 4 ⁇ m.
- the average particle diameter B of the conductive particles was 10 ⁇ m, and B / A was 2.5.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary sticking property of this anisotropic conductive film was x.
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 7.0 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 1 being 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 6.2 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was ⁇ , and the evaluation of the conduction resistance after the high temperature and high humidity test was ⁇ .
- Example 7 As shown in Table 2, an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 5 set to 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elastic modulus of the binder at 100 ° C. was 60 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 8.2 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- anisotropic conductive films were prepared with the thickness A of the binder of Formulation 2 set to 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elastic modulus at 100 ° C. of the binder was 800 MPa, and the evaluation was good.
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 7.1 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- Example 9 As shown in Table 2, an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 3 set to 8 ⁇ m. The average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75. Further, the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ . The 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 8.1 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was ⁇ , and the evaluation of the conduction resistance after the high temperature and high humidity test was ⁇ .
- an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 8 set to 26 ⁇ m.
- the average particle diameter B of the conductive particles was 20 ⁇ m, and B / A was 0.77.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 9.2 N / cm, and the evaluation after peeling of the flexible substrate B was x.
- the evaluation of the initial conduction resistance after re-mounting was xx, and the evaluation of the conduction resistance after the high-temperature and high-humidity test was xx.
- anisotropic conductive films were prepared with the thickness A of the binder of formulation 4 set to 8 ⁇ m.
- the average particle diameter B of the conductive particles was 5 ⁇ m, and B / A was 0.63.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 250 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 6.4 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was x, and the evaluation of the conduction resistance after the high temperature and high humidity test was x.
- an anisotropic conductive film was prepared with the binder A of Formula 9 having a thickness A of 8 ⁇ m.
- the average particle diameter B of the conductive particles was 6 ⁇ m, and B / A was 0.75.
- the elasticity modulus in 100 degreeC of a binder was 15 Mpa, and the evaluation was x.
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1 except that the pressure bonding conditions were 150 ° C., 3 MPa, and 10 sec.
- the peeling strength of the flexible substrate in this mounting body was 8.2 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “poor”.
- an anisotropic conductive film was prepared with the binder A of Formula 10 having a thickness A of 8 ⁇ m.
- the average particle diameter B of the conductive particles was 5 ⁇ m, and B / A was 0.63.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 700 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peeling strength of the flexible substrate in this mounting body was 6.4 N / cm, and the evaluation after peeling of the flexible substrate B was “good”.
- the evaluation of the initial conduction resistance after remounting was “good”
- the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- an anisotropic conductive film was prepared with the thickness A of the binder of Formulation 7 set to 16 ⁇ m.
- the average particle diameter B of the conductive particles was 10 ⁇ m, and B / A was 0.63.
- the elastic modulus at 100 ° C. of the binder was 900 MPa, and the evaluation was ⁇ .
- the 10% K value of the conductive particles was 4000 kgf / mm 2 . Evaluation of the temporary stickability of this anisotropic conductive film was (circle).
- a mounting body was produced in the same manner as in Example 1.
- the peel strength of the flexible substrate in this mounting body was 9.0 N / cm, and the evaluation after peeling of the flexible substrate B was ⁇ .
- the evaluation of the initial conduction resistance after remounting was “good”, and the evaluation of the conduction resistance after the high temperature and high humidity test was “good”.
- Comparative Example 4 when the thickness A of the binder greatly exceeded 15 ⁇ m, the evaluation after peeling of the flexible substrate B was bad, and the press bonding was impossible. Further, as in Comparative Example 5, when the 10% K value was less than 500 kgf / mm 2 , the initial conduction resistance was high, and the evaluation of the conduction resistance after the high-temperature and high-humidity test was poor. Further, as in Comparative Example 6, when an acrylic binder was used, the elastic modulus at 100 ° C. was as low as less than 50 MPa, so the evaluation of the conduction resistance after the high temperature and high humidity test was poor.
- the conduction resistance after the high-temperature and high-humidity test is good, and particularly after the binder is cured.
- Examples 1 to 11 when the thickness A of the binder was 16 ⁇ m or less, more than half of the flexible substrates B were non-destructive and could be reused after the flexible substrate B was peeled off. Further, as in Examples 1 to 11, when the 10% K value was 500 kgf / mm 2 or more, the initial conduction resistance was low and the evaluation of the conduction resistance after the high-temperature and high-humidity test was good.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Insulated Conductors (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Combinations Of Printed Boards (AREA)
- Conductive Materials (AREA)
- Wire Bonding (AREA)
Abstract
Description
1.実装体の製造方法、及び異方性導電フィルム
2.実施例
本実施の形態に係る実装体の製造方法は、エポキシ樹脂を主成分とするバインダーと、10%圧縮変形時の圧縮硬さK値が500kgf/mm2以上である導電性粒子とを含有し、バインダーの厚みAと導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.5であり、バインダーの硬化後の100℃における弾性率が、50MPa以上である異方性導電フィルムを介して、配線板上に電子部材を実装する実装工程と、実装工程における実装に不都合が生じた場合、前記配線板と前記電子部材とを機械的に剥離し、配線板を再利用して実装工程を行う再実装工程とを有する。ここで、平均粒子径Bとは、粉体の粒径分布において、ある粒子径より大きい個数又は質量が、全粉体のそれの50%を占めるときの粒子径であり、通常D50で表される。
配線板に硬化ACFの残渣がある状態で再実装するには、異方性導電フィルムのバインダーの厚みAと導電性粒子の平均粒子径Bとの関係は、0.6≦B/A≦1.5であり、より好ましくは0.6≦B/A≦1.0である。これにより、いわゆるリペア作業の際の配線板の破損、変形を抑制することができるとともに、安定した導通の確保、及び優れた仮貼り性を得ることができる。また、バインダーの厚みAは、15μm以下であることが好ましい。バインダーの厚みが大き過ぎると、リペア作業時の配線板を剥離させるプロセスにて、バインダーとの剥離強度が高くなり過ぎて、配線板の破壊、変形などが発生し、配線板の再利用ができなくなる可能性がある。
<4.実施例>
各種測定、及び評価は次のように行った。
動的粘弾性測定機(オリエンテック社製)を用いて、バインダーの硬化後の貯蔵弾性率(E’)を測定した。バインダーをPETフィルムに挟み、バインダーを200℃オーブンで10分間静置して硬化させた後、PETフィルムを引き剥がし、バインダーの硬化後の貯蔵弾性率(E’)を測定した。なお、測定は、引張りモードで周波数を1.1Hzとした。
微小圧縮試験機(PCT-200型、株式会社島津製作所製)を用いて、導電性粒子の10%圧縮時の圧縮硬さ(K値)を測定した。
設定70℃のホットステージ上にPETフィルムAをセットし、50mm角にカットされたACFを配置して5kgローラーで2往復加圧後、ACFの剥離フィルムを剥離させ、その上にPETフィルムBを重ね合わせ、ラミネートした後、その上からPETフィルム同士を仮固定する目的で再度5kgローラーにて2往復加圧して仮接着サンプルを作製した。
フレキシブル基板(FPC)同士をACFにより接合させた実装体について、片方のフレキシブル基板にコニシ株式会社製ボンドクイック5接着剤の2液を混合後に塗布し、次いで1.0mm厚のガラスエポキシ板に実装体を貼り合せ、室温に12時間放置して接着した。この試験片について、剥離試験機(TENSILON、オリオンテック社製)を用いて、JIS K6854‐1(1999)に準拠し、フレキシブル基板を90°方向に引き剥がし、ACFによる接合部の剥離強度を測定した。引っ張り速度は、50mm/minとした。
異方性導電フィルムを用いて作製されたフレキシブル基板(FPC-A、FPC-B)同士の実装体について、フレキシブル基板を引き剥がし、FPC-Bの破損状態を観察した。そして、10個の実装体について、破損状態の観察を行い、評価をした。非破壊で再利用可能な状態のものが10/10の場合を「◎」、非破壊で再利用可能なものが8/10以上9/10未満の場合を「○」、非破壊で再利用可能なものが5/10以上7/10未満の場合を「△」、及び非破壊で再利用可能なものが4/10未満の場合を「×」と評価した。
異方性導電フィルムを用いて作製されたフレキシブル基板(FPC-A、FPC-B)同士の実装体からFPC-Bを剥離させ、硬化ACFの残渣を残存させた状態のFPC-B上に新しいACFを貼り付け、FPC-Aの再実装を行った。このリワークした実装体について、初期(Initial)の導通抵抗と、温度85℃湿度85%RH1000時間のTHテスト(Thermal Humidity Test)後の導通抵抗とを測定した。導通抵抗は、デジタルマルチメータ(デジタルマルチメータ7561、横河電機社製)を用いて4端子法にて測定した。
配合1~9により異方性導電フィルムを作製した。表1に、エポキシ樹脂を主成分とした配合1~8を示す。
エポキシ樹脂:EP-828(三菱化学社製)
フェノキシ樹脂:YP-50(東都化成社製)
硬化剤:ノバキュア3941HP(旭化成イーマテリアルズ社製)
エラストマー:テイサンレジンSG-80H(ナガセケムテックス社製)、重量平均分子量35万
シランカップリング剤:A-187(モメンティブ・パフォーマンス・マテリアルズ社製)
導電性粒子A:ニッケル粒子、平均粒子径(D50)6μm、10%K値4000kgf/mm2
導電性粒子B:ニッケル粒子、平均粒子径(D50)10μm、10%K値4000kgf/mm2
導電性粒子C:ニッケル粒子、平均粒子径(D50)20μm、10%K値4000kgf/mm2
導電性粒子D:ミクロパールAUL(積水化学社製)、金属メッキ樹脂粒子、平均粒子径(D50)5μm、10%K値250kgf/mm2
導電性粒子E:ブライト(日本化学工業社製)、金属メッキ樹脂粒子、平均粒子径(D50)5μm、10%K値700kgf/mm2
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、及び硬化剤40質量部に、導電性粒子Aを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂20質量部、エラストマー20質量部、及び硬化剤40質量部に、導電性粒子Aを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、シランカップリング剤1質量部、及び硬化剤40質量部に、導電性粒子Aを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、及び硬化剤40質量部に、導電性粒子Dを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂10質量部、フェノキシ樹脂40質量部、エラストマー40質量部、及び硬化剤10質量部に、導電性粒子Aを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂10質量部、フェノキシ樹脂25質量部、エラストマー40質量部、及び硬化剤25質量部に、導電性粒子Aを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、及び硬化剤40質量部に、導電性粒子Bを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、及び硬化剤40質量部に、導電性粒子Cを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
アクリレートA(DCP、新中村化学社製)25質量部、エポキシアクリレートB(VR-90、昭和電工社製)20質量部、フェノキシ樹脂(YP-70、新日鐵化学社製)25質量部、ウレタン樹脂(デスモコール540、住化バイエルウレタン社製)15質量部、ポリブタジエンゴム(XER-91、JSR社製)12質量部、及び過酸化物(ナイパーBW、日本油脂社製)3質量部をバインダーとした。このバインダーに対して、導電性粒子Aを12体積%分散させ、所定厚さの異方性導電フィルムを作製した。
表1に示すように、エポキシ樹脂20質量部、フェノキシ樹脂40質量部、及び硬化剤40質量部に、導電性粒子Eを15質量部分散させ、所定厚さの異方性導電フィルムを作製した。
表2に示すように、配合6のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合6のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合6のバインダーの厚みAを4μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは1.5であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は△であった。
表2に示すように、配合6のバインダーの厚みAを10μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.6であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合6のバインダーの厚みAを3μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは2.0であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は×であった。
表2に示すように、配合6のバインダーの厚みAを12μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.5であった。また、バインダーの100℃における弾性率は80MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合7のバインダーの厚みAを12μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは10μmであり、B/Aは0.83であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合7のバインダーの厚みAを4μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは10μmであり、B/Aは2.5であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は×であった。
表2に示すように、配合1のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合5のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は60MPaであり、その評価は△であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合2のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は800MPaであり、その評価は○であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合3のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合8のバインダーの厚みAを26μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは20μmであり、B/Aは0.77であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合4のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは5μmであり、B/Aは0.63であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は250kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合9のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは6μmであり、B/Aは0.75であった。また、バインダーの100℃における弾性率は15MPaであり、その評価は×であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合10のバインダーの厚みAを8μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは5μmであり、B/Aは0.63であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は700kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
表2に示すように、配合7のバインダーの厚みAを16μmとして異方性導電フィルムを作製した。導電性粒子の平均粒子径Bは10μmであり、B/Aは0.63であった。また、バインダーの100℃における弾性率は900MPaであり、その評価は◎であった。また、導電性粒子の10%K値は4000kgf/mm2であった。この異方性導電フィルムの仮貼り性の評価は○であった。
Claims (14)
- エポキシ樹脂を主成分とするバインダーと、10%圧縮変形時の圧縮硬さK値が500kgf/mm2以上である導電性粒子とを含有し、前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.5であり、前記バインダーの硬化後の100℃における弾性率が、50MPa以上である異方性導電フィルムを介して、配線板上に電子部材を実装する実装工程と、
前記実装工程における実装に不都合が生じた場合、前記配線板と前記電子部材とを機械的に引き剥がし、該配線板を再利用して前記実装工程を行う再実装工程と
を有する実装体の製造方法。 - 前記再実装工程では、前記配線板上に前記異方性導電フィルムの残渣が残存した状態で前記実装工程を行う請求項1記載の実装体の製造方法。
- 前記バインダーの厚みが、15μm以下である請求項1又は2記載の実装体の製造方法。
- 前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.0である請求項1又は2記載の実装体の製造方法。
- 前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.0である請求項3記載の実装体の製造方法。
- 前記バインダーの硬化後の100℃における弾性率が、80MPa以上800MPa以下である請求項請求項1又は2記載の実装体の製造方法。
- 前記バインダーが、アクリルゴムからなるエラストマーを含有する請求項請求項1又は2記載の実装体の製造方法。
- 前記配線板と前記電子部材との剥離強度が、5.0N/cm以上9.0N/cm以下である請求項1又は2記載の実装体の製造方法。
- エポキシ樹脂を主成分とするバインダーと、10%圧縮変形時の圧縮硬さK値が500kgf/mm2以上である導電性粒子とを含有し、
前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.5であり、
前記バインダーの硬化後の100℃における弾性率が、50MPa以上である異方性導電フィルム。 - 前記バインダーの厚みが15μm以下である請求項9記載の異方性導電フィルム。
- 前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.0である請求項9又は10記載の異方性導電フィルム。
- 前記バインダーの硬化後の100℃における弾性率が、80MPa以上800MPa以下である請求項9又は10記載の異方性導電フィルム。
- 前記バインダーが、アクリルゴムからなるエラストマーを含有する請求項9又は10記載の異方性導電フィルム。
- エポキシ樹脂を主成分とするバインダーと、10%圧縮変形時の圧縮硬さK値が500kgf/mm2以上である導電性粒子とを含有し、前記バインダーの厚みAと前記導電性粒子の平均粒子径Bとの関係が、0.6≦B/A≦1.5であり、前記バインダーの硬化後の100℃における弾性率が、50MPa以上である異方性導電フィルムを介して、配線板上に電子部材が実装されてなる実装体。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14871737.4A EP3086411B1 (en) | 2013-12-16 | 2014-12-10 | Mounting body manufacturing method |
| US15/104,452 US10887999B2 (en) | 2013-12-16 | 2014-12-10 | Mounting body manufacturing method and anisotropic conductive film |
| MYPI2016001107A MY194836A (en) | 2013-12-16 | 2014-12-10 | Mounting Body Manufacturing Method and Anisotropic Conductive Film |
| SG11201604899SA SG11201604899SA (en) | 2013-12-16 | 2014-12-10 | Mounting body manufacturing method and anisotropic conductive film |
| CN201480075640.7A CN105981228B (zh) | 2013-12-16 | 2014-12-10 | 安装体的制造方法和各向异性导电膜 |
| KR1020167015897A KR102336897B1 (ko) | 2013-12-16 | 2014-12-10 | 실장체의 제조 방법 및 이방성 도전 필름 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013259194 | 2013-12-16 | ||
| JP2013-259194 | 2013-12-16 | ||
| JP2014-235554 | 2014-11-20 | ||
| JP2014235554A JP6505423B2 (ja) | 2013-12-16 | 2014-11-20 | 実装体の製造方法、及び異方性導電フィルム |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015093362A1 true WO2015093362A1 (ja) | 2015-06-25 |
Family
ID=53402711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/082640 Ceased WO2015093362A1 (ja) | 2013-12-16 | 2014-12-10 | 実装体の製造方法、及び異方性導電フィルム |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10887999B2 (ja) |
| EP (1) | EP3086411B1 (ja) |
| JP (1) | JP6505423B2 (ja) |
| KR (1) | KR102336897B1 (ja) |
| CN (1) | CN105981228B (ja) |
| MY (1) | MY194836A (ja) |
| SG (1) | SG11201604899SA (ja) |
| TW (1) | TWI686024B (ja) |
| WO (1) | WO2015093362A1 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6346807B2 (ja) * | 2014-07-02 | 2018-06-20 | 積水化学工業株式会社 | 導電性粒子、接合用組成物、接合構造体及び接合構造体の製造方法 |
| JP6944533B2 (ja) * | 2017-10-12 | 2021-10-06 | 富士フイルム株式会社 | 異方性導電フィルムおよび積層体 |
| JP7424745B2 (ja) * | 2018-10-11 | 2024-01-30 | 信越ポリマー株式会社 | 電磁波シールドフィルム、電磁波シールドフィルム付きプリント配線板およびその製造方法 |
| WO2021235434A1 (ja) * | 2020-05-20 | 2021-11-25 | 日本化学工業株式会社 | 導電性粒子、それを用いた導電性材料及び接続構造体 |
| CN116622307A (zh) * | 2023-04-28 | 2023-08-22 | 安徽昱微材料科技有限公司 | 一种无溶剂型异方性导电胶、导电胶膜及其制备方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103819A (ja) * | 1992-09-21 | 1994-04-15 | Hitachi Chem Co Ltd | 異方導電性接着フィルム |
| JP2004224942A (ja) * | 2003-01-24 | 2004-08-12 | Kinugawa Rubber Ind Co Ltd | 異方導電性弾性体組成物およびその製造方法 |
| WO2009044732A1 (ja) * | 2007-10-05 | 2009-04-09 | Hitachi Chemical Company, Ltd. | 接着剤組成物及びこれを用いた回路接続材料、並びに、回路部材の接続方法及び回路接続体 |
| JP2010024301A (ja) * | 2008-07-16 | 2010-02-04 | Sony Chemical & Information Device Corp | 異方性導電接着剤 |
| JP2010257991A (ja) * | 2010-07-28 | 2010-11-11 | Sony Chemical & Information Device Corp | 実装体の製造方法、接続方法及び異方性導電膜 |
| JP2010272545A (ja) | 2010-08-26 | 2010-12-02 | Sony Chemical & Information Device Corp | 実装体の製造方法及び実装体並びに異方性導電膜 |
| JP2012209097A (ja) * | 2011-03-29 | 2012-10-25 | Sekisui Chem Co Ltd | 異方性導電材料及び接続構造体 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI332027B (en) * | 2000-12-28 | 2010-10-21 | Hitachi Chemical Co Ltd | Circuit connecting adhesive with anisotropic conductivity connecting method of circuit board and circuit connecting construction by using the adhesive |
| JP5186157B2 (ja) * | 2007-08-24 | 2013-04-17 | デクセリアルズ株式会社 | 異方性導電フィルム及びそれを用いた接続構造体の製造方法 |
| WO2009048070A1 (ja) * | 2007-10-12 | 2009-04-16 | Hitachi Chemical Company, Ltd. | 回路接続材料及びそれを用いた回路部材の接続構造 |
| JP5359472B2 (ja) * | 2009-04-02 | 2013-12-04 | いすゞ自動車株式会社 | 燃料供給装置 |
-
2014
- 2014-11-20 JP JP2014235554A patent/JP6505423B2/ja active Active
- 2014-12-10 TW TW103142945A patent/TWI686024B/zh active
- 2014-12-10 US US15/104,452 patent/US10887999B2/en active Active
- 2014-12-10 KR KR1020167015897A patent/KR102336897B1/ko active Active
- 2014-12-10 WO PCT/JP2014/082640 patent/WO2015093362A1/ja not_active Ceased
- 2014-12-10 EP EP14871737.4A patent/EP3086411B1/en active Active
- 2014-12-10 MY MYPI2016001107A patent/MY194836A/en unknown
- 2014-12-10 CN CN201480075640.7A patent/CN105981228B/zh active Active
- 2014-12-10 SG SG11201604899SA patent/SG11201604899SA/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103819A (ja) * | 1992-09-21 | 1994-04-15 | Hitachi Chem Co Ltd | 異方導電性接着フィルム |
| JP2004224942A (ja) * | 2003-01-24 | 2004-08-12 | Kinugawa Rubber Ind Co Ltd | 異方導電性弾性体組成物およびその製造方法 |
| WO2009044732A1 (ja) * | 2007-10-05 | 2009-04-09 | Hitachi Chemical Company, Ltd. | 接着剤組成物及びこれを用いた回路接続材料、並びに、回路部材の接続方法及び回路接続体 |
| JP2010024301A (ja) * | 2008-07-16 | 2010-02-04 | Sony Chemical & Information Device Corp | 異方性導電接着剤 |
| JP2010257991A (ja) * | 2010-07-28 | 2010-11-11 | Sony Chemical & Information Device Corp | 実装体の製造方法、接続方法及び異方性導電膜 |
| JP2010272545A (ja) | 2010-08-26 | 2010-12-02 | Sony Chemical & Information Device Corp | 実装体の製造方法及び実装体並びに異方性導電膜 |
| JP2012209097A (ja) * | 2011-03-29 | 2012-10-25 | Sekisui Chem Co Ltd | 異方性導電材料及び接続構造体 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102336897B1 (ko) | 2021-12-08 |
| US10887999B2 (en) | 2021-01-05 |
| TWI686024B (zh) | 2020-02-21 |
| TW201541765A (zh) | 2015-11-01 |
| EP3086411B1 (en) | 2023-05-10 |
| EP3086411A1 (en) | 2016-10-26 |
| JP2015135949A (ja) | 2015-07-27 |
| JP6505423B2 (ja) | 2019-04-24 |
| CN105981228B (zh) | 2020-01-10 |
| KR20160099571A (ko) | 2016-08-22 |
| SG11201604899SA (en) | 2016-07-28 |
| CN105981228A (zh) | 2016-09-28 |
| EP3086411A4 (en) | 2017-12-20 |
| MY194836A (en) | 2022-12-19 |
| US20160316569A1 (en) | 2016-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5833809B2 (ja) | 異方性導電フィルム、接合体及び接続方法 | |
| JP4897778B2 (ja) | 接続フィルム、並びに、接合体及びその製造方法 | |
| TWI628673B (zh) | Anisotropic conductive film, connection method, and connection structure | |
| KR101344965B1 (ko) | 이방성 도전 필름, 접합체, 및 접합체의 제조 방법 | |
| JP7347576B2 (ja) | 接着剤フィルム | |
| JP6505423B2 (ja) | 実装体の製造方法、及び異方性導電フィルム | |
| KR20190087365A (ko) | 실장체의 제조 방법, 접속 방법 및 이방성 도전막 | |
| JP2024160304A (ja) | 接着剤フィルム | |
| JP5972564B2 (ja) | 接続方法、接続構造体、異方性導電フィルム及びその製造方法 | |
| JP5816456B2 (ja) | 異方性導電接続材料、フィルム積層体、接続方法及び接続構造体 | |
| JP5315031B2 (ja) | 異方性導電フィルム、並びに、接合体及びその製造方法 | |
| JP6408759B2 (ja) | 接着剤組成物、及びフィルム巻装体 | |
| WO2018150897A1 (ja) | 異方性導電接続構造体、異方性導電接続構造体の製造方法、異方性導電フィルム、及び異方性導電ペースト | |
| JP2009004603A (ja) | 基板の製造方法 | |
| JP5966069B2 (ja) | 異方性導電フィルム、接合体及び接続方法 | |
| JP6286473B2 (ja) | 接合体 | |
| JP5924896B2 (ja) | 接合体の製造方法 |
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: 14871737 Country of ref document: EP Kind code of ref document: A1 |
|
| REEP | Request for entry into the european phase |
Ref document number: 2014871737 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2014871737 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15104452 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref document number: 20167015897 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |