WO1998007216A1 - Film conducteur anisotrope et procede de fabrication - Google Patents
Film conducteur anisotrope et procede de fabrication Download PDFInfo
- Publication number
- WO1998007216A1 WO1998007216A1 PCT/JP1997/002750 JP9702750W WO9807216A1 WO 1998007216 A1 WO1998007216 A1 WO 1998007216A1 JP 9702750 W JP9702750 W JP 9702750W WO 9807216 A1 WO9807216 A1 WO 9807216A1
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- WIPO (PCT)
- Prior art keywords
- anisotropic conductive
- conductive film
- region
- film
- wire
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/16—Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
-
- 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
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/007—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for elastomeric connecting elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
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- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
- Y10T29/49211—Contact or terminal manufacturing by assembling plural parts with bonding of fused material
Definitions
- the present invention relates to an anisotropic conductive film, and more particularly, to an anisotropic conductive film suitably used for connecting a semiconductor device to a substrate.
- anisotropic conductive films have begun to be used for connecting a plurality of conductor patterns formed on a substrate to the conductor patterns or IC, LSI connected thereto.
- An anisotropic conductive film is a film that has electrical conductivity only in one direction but is electrically insulated in the other direction.
- Methods for producing an anisotropic conductive film include a method in which conductive fine particles are dispersed in an adhesive film, and a method in which a through hole is provided in the adhesive film and metal is filled in the through hole by plating. Have been.
- the anisotropic conductive film produced by the former method can be manufactured at low cost.
- the conductive fine particles are mixed into the adhesive film by dispersion, the narrow pitch electric There is a disadvantage that connection is not reliable.
- An object of the present invention is to solve the above-mentioned problems, to enable electrical connection at a narrow pitch, and to have a strength characteristic in a film surface direction which has not been achieved in the past.
- An object of the present invention is to provide an anisotropic conductive film capable of improving adhesiveness and to provide a preferable production method thereof. The purpose of this is to form a coating layer on a thin metal wire using an insulating material, roll this around a core material, and then heat and / or press to fuse the coating layers together and Z or crimp. This has been achieved by a manufacturing method in which a blade is inserted in the width direction of the roll.
- the anisotropic conductive film of the present invention has the following features.
- a plurality of conductive paths made of a conductive material are arranged in a film substrate made of a first insulating material in a state in which they are insulated from each other and penetrate the film substrate in a thickness direction.
- the conduction path is one in which both ends are exposed on the front and back surfaces of the film substrate, and the surface excluding the exposed both ends is covered with the second material, and the first insulation material and the second insulation material are covered by the second material.
- An anisotropic conductive film, wherein at least one of the materials is an adhesive material.
- a plurality of conductive paths made of a conductive material are arranged in a state of being insulated from each other and penetrating the film substrate in a thickness direction.
- Each conductive path has both ends exposed on the front and back surfaces of the film substrate, and the coefficient of linear expansion of the anisotropic conductive film is 2 to 100 ppm. .
- a coating layer made of the second material is formed on the thin metal wire, and a coating layer made of the first insulating material is further formed to form an insulated conductor.
- the first insulating material and the second material are combined. At least one of which is an adhesive material; a step of winding the insulated conductor in a roll around a core material; and heating and Z or pressing the roll to fuse the coating layers made of the first insulating material. And a step of cutting the roll-shaped material into a predetermined film thickness with a plane intersecting at an angle with the wound insulated conductive wire as a cross section.
- Region B A region made of an insulating material and having a shape including a rectangle of 0.2 mm x 1 mm and having no conductive path in the region.
- the region B is provided so as to surround the outer periphery of the region A, and the shape of the region B is any of a circle, an ellipse, a regular polygon, a rectangle, a rhombus, and a trapezoid. 10) Anisotropic conductive film described.
- the anisotropic conductive film is formed by winding an insulated conductor around a core material to form a roll, and heating and applying or pressing the roll to fuse the coating layers of the wound insulated conductor.
- the roll-shaped material is cut to a predetermined film thickness with a plane crossing at an angle with the wound insulated conductor as a cross section. And the part of the core material cut together with the insulated conductor is used as a part of the product without being removed.
- the anisotropic conductive film according to any one of the above (9) to (11), wherein a portion of the core material is the region B.
- the production method of the present invention has the following features.
- a method for producing an anisotropic conductive film comprising at least the following steps (1) to (3).
- a process of winding an insulated conductor in which at least one coating layer made of an insulating material is provided on a wire made of a conductive material, in a roll shape around a core material.
- step 2 While winding in the above step 2 or after the completion of the above step 2, heating and / or pressurization of the coil-shaped winding coil is carried out so that the adjacent insulated conductor between the layers and between the layers of the winding coil is formed.
- a step of forming a wound coil block by fusing and crimping or crimping the coating layers together to form a wound coil block.
- the above step (3) is a step of cutting the core of the wound wire together with the cutting of the wire, and the cut core is formed into a product without being removed from the cut wire.
- FIG. 1 is a schematic view showing an example of the anisotropic conductive film according to the present invention.
- FIG. 2 is a schematic view showing another example of the anisotropic conductive film according to the present invention.
- FIG. 3 is a cross-sectional view showing an embodiment of the end of the conduction path.
- FIG. 4 is a cross-sectional view showing the angle of the conduction path with respect to the film surface.
- FIG. 5 is a schematic view showing another preferred embodiment of the anisotropic conductive film according to the present invention.
- FIG. 6 is a diagram showing an example of the shape of the region B of the anisotropic conductive film according to the present invention.
- FIG. 7 is a diagram illustrating an example of an arrangement relationship between the area A and the area B.
- FIG. 8 is a diagram illustrating an example of an arrangement relationship between the area A and the area B.
- FIG. 9 is a diagram illustrating a preferred method of manufacturing an anisotropic conductive film according to the present invention
- FIG. 10 is a diagram illustrating a preferable method of manufacturing an anisotropic conductive film according to the present invention.
- FIG. 3 is a diagram showing a state in which a semiconductor element is connected to a circuit board by an anisotropic conductive film obtained by the invention and a conventional technique.
- FIG. 1 is a schematic view showing an example of the anisotropic conductive film according to the present invention.
- Fig. 1 (a) is a view when the film surface is viewed.
- FIG. 1B is a partially enlarged view of the X-X cross section of the anisotropic conductive film shown in FIG. 1A.
- the cover layer 3 is formed of the second material on the body side surface of the conduction path 2. At least one of the first insulating material and the second material is an adhesive material.
- FIG. 2, c Figure 2 is a schematic view showing another example of the anisotropic conductive film (a) according to the present invention, similar to FIG. 1 (a), be a drawing when viewed film surface
- FIG. 2 (b) is a partially enlarged view of the Y-Y cross section of the anisotropic conductive film shown in FIG. 2 (a).
- a film substrate 1 made of a first insulating material a plurality of conductive paths 2 made of a conductive material are insulated from each other, and thus penetrated the film substrate 1 in the thickness direction. Both ends of each conductive path are exposed on the front and back surfaces of the film substrate.
- this embodiment is the same as the embodiment in FIG. 1, but the embodiment in FIG. 2 does not cover the side surface of the body of each conduction path with the second material, and the linear expansion coefficient of the anisotropic conductive film is small. It is characterized by being limited to 2 to 100 ppm.
- Examples of the first insulating material in the embodiments shown in FIGS. 1 and 2 include a known material used for a film substrate of an anisotropic conductive film, and the anisotropic conductive film of the present invention comprises a printed substrate and a semiconductor. Since it is used for bonding elements, a material having adhesive properties is preferable. As the material having an adhesive property, a known adhesive material may be used regardless of a thermosetting resin or a thermoplastic resin.
- the term “adhesive material” refers to a material that exhibits adhesiveness as it is or does not exhibit adhesiveness as it is, but can be adhered by heating and Z or pressing.
- thermoplastic resin that is fused and / or pressed by heating and Z or pressure, or a thermosetting resin that is cured by heating.
- thermoplastic polyimide resin epoxy resin, polyetherimide resin, polyamide resin, silicone resin, phenoxy resin, acrylic resin, polycarboimide resin, fluorine resin, polyester resin, polyurethane resin, etc. It is appropriately selected according to the purpose. These resins may be used alone or in combination of two or more. In the bonding between the circuit board and the semiconductor element by the anisotropic conductive film of the present invention, when an adhesive thermoplastic resin is used as the first insulating material, rework is possible.
- thermosetting resin When an adhesive thermosetting resin is used as a material, there is an advantage that the bonding reliability at high temperatures is improved. Therefore, selection between a thermoplastic resin and a thermosetting resin is appropriately determined according to the use of the anisotropic conductive film of the present invention.
- the charge for example, S i 0 2, A l 2 0 3, as a soluble plasticizer, for example, TCP (tricresyl phosphate), DOP (phthalate Jioku chill), as a rubber material, for example, NBS (acrylonitrile Butadiene rubber), SBS (polystyrene-polybutylene-polystyrene) and the like.
- the conduction path arranged in the film substrate is made of a conductive material.
- the conductive material include known materials. Examples of such materials include metal materials such as copper, gold, aluminum, and nickel, and organic materials such as polyimide resin, epoxy resin, acrylic resin, and fluororesin. Mixtures and the like are listed.
- This conductive material is appropriately selected depending on the application of the film of the present invention, but is preferably a metal material in terms of electrical characteristics, and particularly preferably a good conductor metal such as gold or copper.
- the conductive paths are arranged in a state where they are insulated from each other and penetrate the film substrate 1 in the thickness direction. It is necessary that both ends 4 of each conductive path 2 be exposed on the front and back surfaces of the film substrate 1.
- the “state insulated from each other” means a state in which the conductive paths are independent of each other in the film substrate without contacting each other, and the size and number of the conductive paths in the film substrate are anisotropic in the present invention. It is appropriately selected according to the use of the conductive film. For example, when the shape of the conduction path is a columnar shape as shown in FIGS.
- the diameter is about 100 to 100 ⁇ m and the pitch is 1 It is preferable that they are arranged at about 0 to 100 m. If each conductive path is too small or the number is too small, the conductivity will be poor. Conversely, if each conductive path is too large or too many, the strength of the film of the present invention will be poor and the connection pitch will be reduced. It is not preferable because it cannot be handled.
- the shape of the cross section perpendicular to the axis of the conduction path 2 may be any shape as long as the above conditions are satisfied, and may be a columnar shape as shown in FIGS. In the embodiment of FIG. 1, the conductive path 2 is covered with a coating layer 3 made of a second material on the surface excluding the exposed both ends 4.
- the second material is not particularly limited as long as it is various organic materials known as electronic materials, and may be either insulating or non-insulating.
- the same as the above-described first insulating material may be used, and various fillers, plasticizers, and the like described for the first insulating material or a rubber material may be added thereto.
- the second material is used as a combination that is different from the first insulating material.
- the non-insulating material include polyimide resin, polyamide imide resin, epoxy resin, polyester resin, and the like.
- the anisotropic conductive film of the present invention is a film used for bonding a circuit board and a semiconductor element
- at least one of the first insulating material and the second material is an adhesive material. It is preferable that both materials are adhesive materials from the viewpoint that the adhesiveness is good.
- various fillers, plasticizers, and rubber materials similar to those for the film substrate can be added to the second material.
- the adhesion between the film substrate 1 and the conductive path 2 is covered with the coating layer 3, the adhesion between the film substrate 1 and the conductive path 2, the strength of the obtained anisotropic conductive film, heat resistance, dielectric properties, etc. Is improved. These can be achieved by appropriately selecting the first insulating material and the second material.
- a polyether imide resin as the first insulating material and a polyamide resin as the second material.
- a polyimide resin as the first insulating material and an epoxy resin as the second material.
- a polyimide resin or a polycarboimide resin is used as the first insulating material, and a polyester resin is used as the second material.
- a polyurethane resin It is preferable to select a polyurethane resin.
- a fluororesin as the first insulating material and a polycarbonate resin as the second material.
- the elastic modulus of the anisotropic conductive film as a whole in the embodiments of FIGS. 1 and 2 is preferably 1 from the viewpoint that stress generated by connection with a semiconductor element or the like or expansion and contraction due to temperature change after connection is reduced. 2200 mPa, more preferably 100-200 mPa. Therefore, the elastic modulus of the first insulating material is preferably 1 to 2000 MPa, and more preferably 10 to 2000 MPa.
- the elastic modulus of the second material is preferably ⁇ to 300 from the viewpoint of stress relaxation. It is more preferably 100 MPa, more preferably 100 to 200 MPa.
- This elastic modulus is obtained by measuring the elastic modulus at 125 ° C. with a viscoelasticity measuring device.
- the elastic modulus of the first insulating material and the elastic modulus of the second material are different from each other by 10 times or more.
- the elastic modulus differs by 10 times or more, the stress in the film of the present invention can be reduced, and the reliability of the film can be improved.
- Either of these elastic moduli may be high, but from the viewpoint of stress relaxation, the elastic modulus of the first insulating material is preferably 10 times or more the elastic modulus of the second material.
- thermoplastic polyimide resin 1000 to 500 MPa
- epoxy resin 300 to 2000 MPa
- 100 to 100 MPa for polyamide resin 100 to 100 MPa for silicone resin
- Acryl resin is 100 to 100MPa
- Polycarpoimide resin is 200 to 400MPa
- Fluoro resin is 0.5 to 100MPa.
- MPa 100 to 100 for polyester resin MPa, 100 to 300 for polyurethane resin It is about Pa.
- the elastic modulus of the anisotropic conductive film in the above range in order to set the elastic modulus of the anisotropic conductive film in the above range, a method by selecting the above materials and adding a filler, a rubber material, or the like is adopted. .
- the above-mentioned fillers and rubber materials are used.
- the material to be used is a thermosetting resin, a method of selecting curing conditions is also employed.
- the anisotropic conductive film of the present invention has a coefficient of linear expansion of preferably 2 to 100 ppm, more preferably 16 to 50 ppm. When the coefficient of linear expansion is less than 2 ppm, the film is hard and brittle, and when it exceeds 100 ppm, the dimensional stability is poor.
- This coefficient of linear expansion is determined as an average coefficient of linear expansion at 25 ° C to 125 ° C by a TMA measuring device.
- the anisotropic conductive film of the present invention preferably has a thickness of 25 to 200 m, more preferably 50 to 100 / zm.
- the thickness is less than 25 zm, the adhesive strength of the anisotropic conductive film tends to be inferior.
- the thickness exceeds 200 / m, the connection resistance increases, which is not preferable in terms of electrical reliability.
- the anisotropic conductive film of the present invention at least one end of at least one conductive path may be projected or depressed from the surface of the film substrate.
- the anisotropic conductive film is suitable for, for example, mounting of semiconductor elements, connection of a flexible substrate, and various connectors.
- the shape of the end of the conduction path is the same as the end face of the film surface as shown in FIG. 1 (b). It may be protruding as shown in b) and (c) or may be depressed as shown in Fig. 3 (a). In addition, for each conduction path, only one or both may protrude or may be depressed. Further, all or a specific portion of one surface of the film substrate may protrude, and all or a specific portion of the other surface may be depressed. When the end of the conduction path protrudes from the surface of the film substrate, the shape of the protruding part is shown in Fig. 3 (c).
- both the film substrate portion and the covering layer are selectively used.
- the organic solvent is appropriately selected depending on the material of the film substrate and the coating layer, and examples thereof include dimethylacetamide, dioxane, tetrahydrofuran, and methylene chloride.
- a method of depressing the conductive path from the surface of the film substrate a method of selectively removing only the conductive path of the obtained anisotropic conductive film is employed, and specifically, chemical etching using acid or alkali is employed. Is done. In addition, it is also possible to suppress the filling of the holes with the conductive material at the time of forming the conductive path to make the holes concave.
- the anisotropic conductive film of the present invention may be arranged such that the conduction path 2 forms an angle ⁇ with a perpendicular to the surface of the film substrate 1 as shown in FIG.
- the angle ( ⁇ in FIG. 4) formed with the perpendicular to the film substrate surface is preferably about 10 ′ to 45 °.
- FIG. 5 (a) is a diagram showing the film surface
- FIG. 5 (b) is a diagram showing a part of a ZZ cross section of FIG. 5 (a).
- the embodiment shown in FIG. 5 is an embodiment in which a new portion is added to the embodiments shown in FIGS. That is, when the region where a plurality of conductive paths are arranged in the anisotropic conductive film shown in FIGS. 1 and 2 is defined as region A (the region indicated by A in FIG. 5), the direction in which the surface of region A expands Adjacent to the same thickness as the area A Region B (region indicated by B in FIG. 5) is further provided.
- the region B is made of an insulating material and has a shape including a rectangle of 0.2 mm ⁇ 1 mm, and has no conduction path in the region.
- the region B is formed so as to correspond to, for example, a portion that is not related to the contact of the semiconductor element when the semiconductor element is to be contacted.
- the conductors electrode pads
- the central area of the IC is a circuit part without contacts. Therefore, when an anisotropic conductive film is applied to such a contact object, a portion having an anisotropic conductivity (region A) may be formed only in a region where a conductor portion exists, and otherwise. It is preferable to form the area B as a part considering the attachment to the other party such as adhesion and flexibility (following property, absorbing dimensional distortion, protection to the other circuit) etc. .
- the region A is added to the region A in this manner, for example, when the anisotropic conductive film is used for connecting a semiconductor element to a circuit board, there is no shaky portion and the structure is stable. Adhesion can be made, so separation is unlikely, and high reliability can withstand electrical connection.
- a wire 10 made of a conductive material is covered with a coating layer 11 made of an insulating material (a coating layer made of a second material).
- 2 coating layer made of the first material
- the outermost layer is a coating layer made of the first material
- the other layers are coating layers made of the second material. That is, the coating layer made of the second material may be composed of a plurality of layers. In that case, do not use a plurality of coating layers made of the second material as adhesive layers.
- At least one of the plurality of layers has adhesiveness, and it is optional to which layer the adhesiveness is to be imparted.
- FIG. 9 (a) is a cross-sectional view showing a state in which one insulated copper wire 13 is wound, and shows a state of closest winding.
- the wire 10 and the coating layer 12 are hatched so that the region can be easily identified.
- E is a space generated between the wires.
- FIG. 9 (b) is a schematic diagram showing the state of the insulated conductors integrated with each other, in which the interface between the insulated conductors is indicated by a dashed line. In the figure, hatching is applied only to the wire 10. Actually, there are parts where the regular hexagons do not form a densely packed state as shown in Fig. 9 (b) due to the square winding state as shown in Fig. 1 or the disorder of the winding. In some cases, the gap E between the lines shown in Fig. 9 (a) remains.
- the wound coil block 14 obtained in (1) is sliced into a thin sheet to obtain the anisotropic conductive film of the present invention.
- Reference numeral 15 denotes a prismatic core material
- reference numeral 16 denotes a cutting knife.
- the purpose of extracting the core material and slicing, whether to slice the core material, or to separate the core part after slicing the core material, and whether to combine them with a mold, etc. It can be freely selected according to the form of the object.
- the slice at this time is a cross section of a plane that intersects the wound wire at an angle and cuts the film to the desired film thickness.
- the cutting knife is depicted in FIG. 10 as an image of a kitchen knife for the purpose of explanation, and includes not only such a mode but also all cutting tools and cutting means. Also, if only one anisotropic conductive film is obtained from one winding coil block, cutting and polishing from both sides may be used. Finish the film surface as required
- the production method of the present invention can produce a high-reliability narrow-pitch electrical connection as compared with a conventional method in which conductive fine particles are dispersed in an adhesive film. Also, as compared with the conventional method in which a hole is formed in an adhesive film and a metal is filled into the hole by plating, there is no need to perform the hole making and the filling of the metal, and the film can be manufactured at low cost.
- a preferable wire made of a conductive material is a thin metal wire having a known winding strength such as a copper wire.
- the thickness of the thin metal wire is the thickness of the conductive path, and is appropriately selected depending on the use of the anisotropic conductive film.
- the diameter is 10 to 200 // m, more preferably. H 2 0 ⁇ ⁇ ! 1100 m.
- the coating layer on the surface of the strand As a method of forming the coating layer on the surface of the strand, a conventionally known method is adopted, and examples thereof include a solvent coating (wet coating) and a melting coating (dry coating).
- the total thickness of the coating layer is appropriately selected according to the pitch between the conductive paths in the film surface of the target anisotropic conductive film, that is, the number per unit area, but is preferably from 10 to 100. ⁇ M, more preferably 20 to 50 / zm.
- the outermost layer of the coating layer corresponds to the cloth (base material) of the film substrate.
- the cloth (base material) of the film substrate Becomes For example, in the embodiment of FIG. 1, it corresponds to a first insulating material. Therefore, the state shown in Fig. 2
- the number of coating layers may be freely determined according to the number of stages of change when the material is to be changed in the direction in which the surface of the film expands.
- the winding a known technique for manufacturing an electromagnetic coil such as a relay or a transformer, for example, a spindle method for rotating a core material, a flyer method for rotating a wire material, or the like may be applied.
- the winding method include a general method of winding one insulated conductor around a core material and a method of winding a plurality of insulated conductors around a core material.
- winding is performed by rough winding with high feed pitch and high-speed rotation. And the most dense winding.
- the form of these windings may be freely determined according to the wire diameter, cost, application, etc., but the anisotropic conductive film obtained by close winding has a high quality in which the conductive paths are regularly arranged. Becomes
- the winding specifications such as the winding width (the total length of the bobbin in the electromagnetic coil and related to the number of turns in one layer) and the thickness (related to the number of layers) depend on the size of the target anisotropic conductive film. It may be determined appropriately. For example, assuming that an ultrafine wire having an outer diameter of 0.4 mm is used, a range of a winding width of 50 mm to 200 mm and a thickness of about 10 mm to 30 mm is exemplified.
- the heating and / or pressurizing applied to the wound coil is performed by applying a certain amount of tension to the coil, so that a process of applying only heating or a process of simultaneously applying heating and pressurizing is preferable.
- the heating temperature is appropriately selected according to the material of the outermost coating material, but is usually about the softening point of the material to about 300 ° C, and specifically about 50 to 300 ° C. is there.
- a thermosetting resin is used as the material of the outermost coating material, it is preferable to heat at a temperature lower than the curing temperature.
- the pressure is preferably about 1 to 100 kcm 2 , more preferably about 2 to 20 kg / cm 2 .
- the heating may be performed under reduced pressure in order to remove air in the gap between the wires.
- the thickness is equivalent to the thickness of the obtained film. Therefore, the thickness of the film can be arbitrarily set by changing the thickness of the slice. According to such a manufacturing method, an anisotropic conductive film of 50 m or more, which has been difficult to manufacture, can be easily manufactured.
- the angle of the passage with respect to the surface of the film substrate can be freely set.
- the embodiments shown in FIGS. 1 and 2 are cases where the angle between the cross section of the slice and the wound wire is substantially a right angle.
- an anisotropic conductive film whose conduction path makes an arbitrary angle with respect to a perpendicular to the surface of the film substrate can be obtained.
- the core of the winding is cut at the same time as the cutting of the winding part, and the cut part of the core is removed. And methods used as products.
- the anisotropic conductive film having the embodiment shown in FIG. 5 can be easily obtained. That is, of the cut surface when the winding coil block is cut, the cross section of the winding becomes the region A, and the cross section of the core material becomes the region B.
- the shape of the region B that is, the cross-sectional shape of the core material is not particularly limited, and examples thereof include a circle, an ellipse, a regular polygon, a rectangle, a rhombus, and a trapezoid.
- a round bar or square bar core material for the winding. Therefore, when the entire winding block is cut along the center axis (rotation axis) of the core material, the shape of region B is as shown in the figure. As shown in Fig. 5, it usually has a rectangular shape, and the area B divides the area A into two.
- the winding can be realized by providing the flanges at both ends.
- the region B of the anisotropic conductive film obtained by cutting the wound coil block together with the core material has a circular shape as shown in FIG.
- the first wound coil block obtained by winding the first core material is newly added to the second core material.
- the first coil is further wound around the coil block with the axis perpendicular to the center of the central axis of the first core as the center axis of the second core.
- This is cut along a plane including both central axes of the first and second core members, as shown in FIG. It is also possible to obtain a configuration in which A surrounds the outer periphery of the region B.
- the material of the core material that is, the material of the region B is not particularly limited, but a metal material having good thermal conductivity such as copper, gold, aluminum, nickel, etc., a plastic material, and a first material according to the present invention.
- the thermosetting / thermoplastic resin having adhesiveness mentioned as the material used for the insulating material is exemplified.
- the obtained anisotropic conductive film has good adhesion between the semiconductor element and the circuit board, and when a metal material is used, the heat dissipation is good. Becomes
- an anisotropic conductive film having an embodiment shown in FIG. 2 was manufactured with one layer of the coating layer formed on the surface of the fine metal wire.
- a 25-m thick coating layer is formed on the surface of a copper wire with an outer diameter of ⁇ 35 / m using a polyterimide resin (Ulram 100, made by Nippon Polyimide, an elastic modulus of 1 OOOMPa).
- a polyterimide resin Ulram 100, made by Nippon Polyimide, an elastic modulus of 1 OOOMPa
- an insulated conductor with a total outer diameter of ⁇ 85 was formed.
- the total length (winding width) is 300 mm.
- the cross-sectional shape is 30 mm x 30 mm.
- a wound coil having an average number of turns of 350 turns per layer and a number of turns of 150 layers (about 12 mm in thickness) was formed.
- the obtained roll-shaped winding coil is pressed at 60 kg / cm 2 while being heated to about 300 ° C. to fuse the polyetherimide resin, cooled to room temperature, and wound.
- a wound coil block in which the girder wires were integrated with each other was obtained.
- the wound coil block is sliced into a sheet with a cross section perpendicular to the wound wire (a plane parallel to the plane including the center axis of the plastic core) as a cross-section, and the shape of the film surface is set to 3 0 0 1 1
- a sheet in the previous stage of an anisotropic conductive film having a thickness of about 12 mm and a thickness of 10 mm was obtained.
- the obtained sheet is sliced further thinly, and the outer diameter is finished to obtain an anisotropic conductive film of the present invention having a film surface shape of 300 mm x 12 mm and a thickness of 0.1 mm.
- the anisotropic conductive film was measured for its modulus of elasticity and coefficient of linear expansion as a whole by the TMA (thermomechanical analysis) method. The coefficient was 60 ppm.
- Example 1 the polyetherimide resin used as the coating material was replaced with a polycarbodiimide resin (Calpositolite, manufactured by Nisshinbo Industries, elastic modulus: 170 MPa), and the heating of the rolled coil was performed.
- the anisotropic conductive film of the present invention was obtained in the same manner as in Example 1 except that the temperature was changed to 100 ° C.
- the elastic modulus of the resulting anisotropically conductive film 1 8 0 0 MP a, c
- Example 1 the polyetherimide resin used as the material of the coating material was replaced with a fluororesin (tetrafluoroethylene-hexafluoropropylene copolymer, elastic modulus 2 MPa), and was roll-shaped.
- An anisotropic conductive film of the present invention was obtained in the same manner as in Example 1, except that the heating temperature for the coil was changed to 100 ° C.
- the elastic modulus of the obtained anisotropic conductive film was 2.lMPa, and the coefficient of linear expansion was 90ppm.
- the number of coating layers is two, and the anisotropic conductive filter shown in FIG.
- I I made Lum.
- a 5 m-thick coating layer was formed on the surface of the copper wire with an outer diameter of 035 using epoxy resin (Yukaka Siloxyx Co., Ltd., Epikote YL980, elastic modulus 300 MPa).
- a 25-m-thick coating layer was formed thereon with a phenoxy resin (Nippon Uniri-ichi, PK HM, modulus 500 MPa).
- a wound coil having the same winding specifications as in Example 1 was formed.
- an anisotropic conductive film of the present invention was obtained in the same manner as in Example 1 except that the heating temperature for the wound coil was set at 150 ° C.
- the elastic modulus of the obtained anisotropic conductive film was 30 MPa, and the coefficient of linear expansion was 80 ppm.
- an anisotropic conductive film of the embodiment shown in FIG. 1 was manufactured by using a resin different from that in Example 4 and using two coating layers.
- a coating layer having a thickness of 5 was formed on the surface of a copper wire having an outer diameter of ⁇ 35 / m using a silicone resin (manufactured by Toray Dow Corning, JCR 6115, elastic modulus 1 OMPa).
- An epoxy resin (YL980) is used for the outer coating layer, and silica (60 parts by weight) is added to the epoxy resin (100 parts by weight) as a filler to give an elastic modulus of 2000. Adjusted to 0 MPa.
- a coating layer having a thickness of 25 / zm was formed using this epoxy resin.
- Example 2 Using this insulated wire, a wound coil having the same winding specifications as in Example 1 was formed. In the subsequent steps, an anisotropic conductive film of the present invention was obtained in the same manner as in Example 1 except that the heating temperature for the wound coil was set at 100 ° C.
- the elastic modulus of the obtained anisotropic conductive film was 1,600 MPa, and the coefficient of linear expansion was 30, ppm.
- the anisotropic conductive films obtained in Examples 1 to 5 have the following features.
- the anisotropic conductive film of Example 1 uses a thermoplastic adhesive, and can be instantaneously bonded to a circuit board and a semiconductor element by heating at 250 ° C. Further, since it is a thermoplastic resin, It has the feature that rework is easy.
- the anisotropic conductive film of Example 2 uses a thermosetting adhesive. After temporary bonding to the circuit board and the semiconductor element by heating at 150 ° C., heating is performed at 200 ° C. for 3 hours. Enables bonding. Also, the use of thermosetting resin ensures high bonding reliability at high temperatures.
- the anisotropic conductive film of Example 3 uses a fluororesin adhesive which is a thermosetting adhesive having a low elastic modulus, and has an effect of relieving a stress generated according to a difference in linear expansion coefficient between a circuit board and a semiconductor element. have. Therefore, it has the feature of high bonding reliability in the thermal cycle test.
- the conductive path of the anisotropic conductive film of Example 4 is covered with an epoxy resin coating layer, and this coating layer enhances the adhesion between the copper wire and the film.
- the wound coil block was cut together with the core material, and as shown in FIG. 5, an anisotropic conductive film including the cut core portion as a region B in a product was manufactured.
- the shape and material of the core material is 300 mm in total length, 8 mm x 30 mm in cross section, polyimide molded product (Vespel made by Toray Dupont), and the winding layer thickness is about 2 mm (24 layers). Except for this, a winding step similar to that of Example 1 was performed to form a wound coil block in which the wound wires were integrated with each other.
- this winding coil block that intersects perpendicularly to the wire while keeping the core in the center, and the cross-sectional outer dimension of the core appears as 300 mm x 8 mm (including the axis of the core)
- the cross section of the wire is sliced into a sheet and the area where the cross section of the wire is present is defined as area A, and the cross section of the core is defined as area B, as shown in Fig. 5.
- the dimensions of the anisotropic conductive film are such that the two areas A are both a rectangle of 300 mm x about 2 mm, the area B is a rectangle of 300 mm x 8 mm, and the total is 300 mm x 12 m m. 1 mm thick.
- the elastic modulus of the obtained anisotropic conductive film as a whole was 300 MMPa, and the coefficient of linear expansion was 25 ppm.
- Example 6 Ten An anisotropic conductive film was obtained in the same manner as in Example 6, except that copper was used as the core material.
- the elastic modulus of the resulting anisotropic conductive film as a whole was 10 GPa, and the coefficient of linear expansion was 17 PPm.
- a film was provided with a large number of through-holes, and a metal was deposited in the through-holes by plating to fill and fill the through-holes to form an anisotropic conductive film according to a conventionally known manufacturing method.
- the surface of the polyimide film obtained by a known casting method is irradiated with a 1 rF excimer laser beam having an oscillation wavelength of 2481111, and through holes of 40 // m in diameter are formed on the entire film surface. It was provided in a close-packed arrangement (a network-like arrangement in which through holes were positioned at the vertices of an equilateral triangle and this was repeated as a minimum unit).
- a copper foil is laminated on one side of the film, and a resist layer is further formed thereon. After washing with water, the copper foil exposed in the through hole was used as a negative electrode, immersed in a gold cyanide bath at 60 ° C, and precipitated and filled in the through hole to form a conductive path 2A. As shown in 11 (b), an anisotropic conductive film having an apparent structure similar to that shown in FIG. 2 was obtained.
- the elastic modulus of the obtained anisotropic conductive film as a whole was 300 Mpa, and the linear expansion coefficient was 21 ppm.
- the semiconductor element 21 was connected to the circuit board 22 to form a semiconductor device. Further, as shown in FIG. 11 (b), a semiconductor device 21 was connected to a circuit board 22 using the anisotropic conductive film 20A obtained in Comparative Example 1 to form a semiconductor device. .
- an anisotropic conductive film having high reliability that can withstand a narrow-pitch electrical connection, and simple and at low cost.
- Anisotropic conductive films of 50 m or more, which had been difficult to manufacture until now, can be easily produced.
- the adhesiveness between the film substrate and the conductive path, and the strength, heat resistance or dielectric properties of the obtained anisotropic conductive film are improved.
- the region A and the region B when used for connection between the semiconductor element and the circuit board, it can be stably bonded without a wobble portion, and is resistant to repeated environmental changes such as a heat cycle. ⁇ Impossibility of separation and high reliability to withstand electrical connection.
- anisotropic conductive films could be easily obtained by the production method of the present invention.
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- Manufacturing Of Electrical Connectors (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50958098A JP3179503B2 (ja) | 1996-08-08 | 1997-08-06 | 異方導電性フィルムおよびその製造方法 |
EP97934721A EP0918371B1 (en) | 1996-08-08 | 1997-08-06 | Anisotropic conductive film and method for manufacturing the same |
US09/230,865 US6245175B1 (en) | 1996-08-08 | 1997-08-06 | Anisotropic conductive film and production method thereof |
DE69738298T DE69738298T2 (de) | 1996-08-08 | 1997-08-06 | Anisotropische, leitende folie und ihr herstellungsverfahren |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/209542 | 1996-08-08 | ||
JP20954296 | 1996-08-08 | ||
JP11724497 | 1997-05-07 | ||
JP9/117244 | 1997-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998007216A1 true WO1998007216A1 (fr) | 1998-02-19 |
Family
ID=26455389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/002750 WO1998007216A1 (fr) | 1996-08-08 | 1997-08-06 | Film conducteur anisotrope et procede de fabrication |
Country Status (7)
Country | Link |
---|---|
US (1) | US6245175B1 (ja) |
EP (1) | EP0918371B1 (ja) |
JP (1) | JP3179503B2 (ja) |
KR (1) | KR100478060B1 (ja) |
CN (1) | CN1111926C (ja) |
DE (1) | DE69738298T2 (ja) |
WO (1) | WO1998007216A1 (ja) |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6188407A (ja) * | 1984-10-05 | 1986-05-06 | 柴田 喜一 | 異方性導電シ−トの製造方法 |
JPS61292866A (ja) * | 1985-06-21 | 1986-12-23 | 株式会社日立製作所 | 電子部品の接合方法 |
JPS63502786A (ja) * | 1986-01-15 | 1988-10-13 | サーキュイット・コンポーネンツ・インコーポレーテッド | 電気回路板相互接続器 |
JPS63266783A (ja) * | 1987-04-10 | 1988-11-02 | アンプ インコ−ポレ−テツド | 熱圧着コネクタ |
JPH05152021A (ja) * | 1991-11-28 | 1993-06-18 | Nitto Denko Corp | 異方導電コネクター |
JPH06203657A (ja) * | 1992-12-25 | 1994-07-22 | Daini Shinano Polymer Kk | 配線シ−トの製造方法 |
JPH07312246A (ja) * | 1994-05-13 | 1995-11-28 | Shinano Polymer Kk | 異方電気コネクタ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE794428A (fr) * | 1972-01-29 | 1973-07-23 | Amp Inc | Connecteur electrique et son procede de fabrication |
JPS5836513B2 (ja) * | 1974-05-10 | 1983-08-09 | 東レ株式会社 | 積層片コネクタ−とその製造方法 |
JP2536676B2 (ja) * | 1990-07-30 | 1996-09-18 | 日本電気株式会社 | マイクロピン集合体及びその製造方法 |
-
1997
- 1997-08-06 WO PCT/JP1997/002750 patent/WO1998007216A1/ja active IP Right Grant
- 1997-08-06 CN CN97198652A patent/CN1111926C/zh not_active Expired - Fee Related
- 1997-08-06 JP JP50958098A patent/JP3179503B2/ja not_active Expired - Fee Related
- 1997-08-06 KR KR10-1999-7001044A patent/KR100478060B1/ko not_active IP Right Cessation
- 1997-08-06 DE DE69738298T patent/DE69738298T2/de not_active Expired - Lifetime
- 1997-08-06 US US09/230,865 patent/US6245175B1/en not_active Expired - Fee Related
- 1997-08-06 EP EP97934721A patent/EP0918371B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6188407A (ja) * | 1984-10-05 | 1986-05-06 | 柴田 喜一 | 異方性導電シ−トの製造方法 |
JPS61292866A (ja) * | 1985-06-21 | 1986-12-23 | 株式会社日立製作所 | 電子部品の接合方法 |
JPS63502786A (ja) * | 1986-01-15 | 1988-10-13 | サーキュイット・コンポーネンツ・インコーポレーテッド | 電気回路板相互接続器 |
JPS63266783A (ja) * | 1987-04-10 | 1988-11-02 | アンプ インコ−ポレ−テツド | 熱圧着コネクタ |
JPH05152021A (ja) * | 1991-11-28 | 1993-06-18 | Nitto Denko Corp | 異方導電コネクター |
JPH06203657A (ja) * | 1992-12-25 | 1994-07-22 | Daini Shinano Polymer Kk | 配線シ−トの製造方法 |
JPH07312246A (ja) * | 1994-05-13 | 1995-11-28 | Shinano Polymer Kk | 異方電気コネクタ |
Non-Patent Citations (1)
Title |
---|
See also references of EP0918371A4 * |
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JP2011029501A (ja) * | 2009-07-28 | 2011-02-10 | Akira Technology Co Ltd | 導電コロイド構造の改良方法およびその完成品 |
JP2013113849A (ja) * | 2011-11-25 | 2013-06-10 | Gigalane Co Ltd | コンタクトフィルム、コンタクトフィルムの製造方法、プローブユニット及びlcdパネル検査装置 |
CN104582946A (zh) * | 2012-11-16 | 2015-04-29 | 兆科学公司 | 具有多层部分包埋颗粒形态的改进的固定阵列各向异性导电膜及其制造方法 |
CN104582946B (zh) * | 2012-11-16 | 2017-12-15 | 兆科学公司 | 具有多层部分包埋颗粒形态的改进的固定阵列各向异性导电膜及其制造方法 |
JP2020091982A (ja) * | 2018-12-04 | 2020-06-11 | 東京特殊電線株式会社 | 異方性導電シート |
WO2020175685A1 (ja) * | 2019-02-28 | 2020-09-03 | 三井化学株式会社 | 異方導電性シート、電気検査装置および電気検査方法 |
KR20210118161A (ko) * | 2019-02-28 | 2021-09-29 | 미쓰이 가가쿠 가부시키가이샤 | 이방 도전성 시트, 전기 검사 장치 및 전기 검사 방법 |
JPWO2020175685A1 (ja) * | 2019-02-28 | 2021-10-07 | 三井化学株式会社 | 異方導電性シート、電気検査装置および電気検査方法 |
KR102637066B1 (ko) * | 2019-02-28 | 2024-02-14 | 미쓰이 가가쿠 가부시키가이샤 | 이방 도전성 시트, 전기 검사 장치 및 전기 검사 방법 |
TWI842842B (zh) * | 2019-02-28 | 2024-05-21 | 日商三井化學股份有限公司 | 異向導電性片、電檢查裝置及電檢查方法 |
WO2022009942A1 (ja) * | 2020-07-10 | 2022-01-13 | 三井化学株式会社 | 異方導電性シート、異方導電性シートの製造方法、電気検査装置および電気検査方法 |
JPWO2022009942A1 (ja) * | 2020-07-10 | 2022-01-13 | ||
JP7342270B2 (ja) | 2020-07-10 | 2023-09-11 | 三井化学株式会社 | 異方導電性シート、異方導電性シートの製造方法、電気検査装置および電気検査方法 |
Also Published As
Publication number | Publication date |
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US6245175B1 (en) | 2001-06-12 |
EP0918371A4 (en) | 2000-01-19 |
CN1111926C (zh) | 2003-06-18 |
DE69738298T2 (de) | 2008-09-18 |
DE69738298D1 (de) | 2007-12-27 |
KR20000029876A (ko) | 2000-05-25 |
EP0918371B1 (en) | 2007-11-14 |
JP3179503B2 (ja) | 2001-06-25 |
EP0918371A1 (en) | 1999-05-26 |
KR100478060B1 (ko) | 2005-03-23 |
CN1233350A (zh) | 1999-10-27 |
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