WO2005068183A1 - Procede de production en continu de stratifie en polyimide conducteur double face - Google Patents

Procede de production en continu de stratifie en polyimide conducteur double face Download PDF

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Publication number
WO2005068183A1
WO2005068183A1 PCT/JP2004/019523 JP2004019523W WO2005068183A1 WO 2005068183 A1 WO2005068183 A1 WO 2005068183A1 JP 2004019523 W JP2004019523 W JP 2004019523W WO 2005068183 A1 WO2005068183 A1 WO 2005068183A1
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WO
WIPO (PCT)
Prior art keywords
sided conductor
metal foil
conductive metal
laminate
polyimide
Prior art date
Application number
PCT/JP2004/019523
Other languages
English (en)
Japanese (ja)
Inventor
Kazuya Miyamoto
Akira Tokumitsu
Masakazu Ii
Yoshihiro Shigematsu
Ichiro Higasayama
Masahiro Kanno
Yujiro Nakagawa
Original Assignee
Nippon Steel Chemical Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Chemical Co., Ltd. filed Critical Nippon Steel Chemical Co., Ltd.
Priority to CN2004800404673A priority Critical patent/CN1906027B/zh
Publication of WO2005068183A1 publication Critical patent/WO2005068183A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1454—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1458—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface scanning at least one of the parts to be joined once, i.e. contour welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/001—Joining in special atmospheres
    • B29C66/0012—Joining in special atmospheres characterised by the type of environment
    • B29C66/0014—Gaseous environments
    • B29C66/00141—Protective gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B29C66/91445—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91941—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to Tg, i.e. the glass transition temperature, of the material of one of the parts to be joined
    • B29C66/91945—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to Tg, i.e. the glass transition temperature, of the material of one of the parts to be joined lower than said glass transition temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • 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
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    • H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
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    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
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    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7316—Surface properties
    • B29C66/73161—Roughness or rugosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/60—In a particular environment
    • B32B2309/62—Inert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2379/00—Other polymers having nitrogen, with or without oxygen or carbon only, in the main chain
    • B32B2379/08—Polyimides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/08—PCBs, i.e. printed circuit boards
    • 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
    • H05K1/032—Organic insulating material consisting of one material
    • H05K1/0346—Organic insulating material consisting of one material containing N
    • 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
    • H05K2201/0137—Materials
    • H05K2201/0154—Polyimide
    • 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
    • H05K2201/0183—Dielectric layers
    • H05K2201/0195—Dielectric or adhesive layers comprising a plurality of layers, e.g. in a multilayer structure

Definitions

  • the present invention relates to a continuous production method of a double-sided conductor polyimide laminate suitable for a flexible printed circuit board or the like as a wiring material in response to a demand for miniaturization and light weight of electronic devices,
  • the present invention relates to a continuous production method of a double-sided conductor polyimide laminate which can be stably produced as a roll-wound product without using a shim, and having a variable strength and quality.
  • a flexible acid that is applied directly to a conductor such as copper foil by applying the uncured polyamic acid solution without using an adhesive, and then cured by heating.
  • the linear expansion coefficient of the cured product 3. 0 X 10- 5 following Jiamin and the polyamic acid which is synthesized by the tetracarboxylic acid anhydride which is cured by heating is applied to the metal foil (e.g., Patent Document 1 ), A resin solution containing a polyamideimide precursor compound having a specific structural unit is applied onto a conductor and imidized (for example, see Patent Document 2), and diamines containing diaminobenzamide or a derivative thereof.
  • These flexible printed wiring boards relate to a single-sided structure in which an insulating layer is adhered to only one side of a conductive metal foil by heat curing without using an adhesive.
  • the present inventors first used a single-sided conductor laminate having at least three polyimide layers on one side of a conductive metal foil (M),
  • M2 conductive metal foil
  • Patent Document 5 proposes a method for producing a double-sided conductor polyimide laminate in which a conductive metal foil (M2) is laminated on the polyimide layer under heat and pressure (see Patent Document 5, for example).
  • a large double-sided conductor laminate can form a wiring circuit on both sides of a substrate, and has already been put to practical use for high-density mounting, and has recently been widely used in various fields.
  • Patent Document 1 JP-A-62-212140
  • Patent Document 2 JP-A-63-84188
  • Patent Document 3 JP-A-63-245988
  • Patent Document 4 Japanese Patent Publication No. 6-49185
  • Patent Document 5 JP-A-10-323935
  • an object of the present invention is to provide a double-sided conductive polyimide laminate having a stable appearance without poor appearance such as vertical wrinkles in which a conductive metal layer is laminated on both sides of a polyimide resin layer without an adhesive.
  • An object of the present invention is to provide a method for continuously producing a body.
  • Another object of the present invention is to provide a double-sided conductor having excellent heat resistance and flexibility as a wiring circuit board, particularly having excellent wiring circuit strength strongly demanded by users.
  • Rolled polyimide laminate It is to provide a manufacturing method.
  • the present inventors have conducted intensive studies on the above problems, and as a result, pre-heated the single-sided conductor laminate and the conductive metal foil (M) immediately before introduction between the heating press rolls to a specific temperature.
  • the present inventors have found that the above object can be achieved by using a sroll surface which has been roughened to a specific surface roughness (R a ), and completed the present invention.
  • a single-sided conductor laminate having at least three polyimide resin layers of a base layer, an intermediate main layer, and a top layer on a conductive metal foil (M) and a conductive metal foil (M)
  • a continuous production method of a double-sided conductor polyimide laminate characterized by contacting the surface of a heated press roll after preheating to a temperature not lower than ° C and not higher than a glass transition point of a polyimide resin of one top layer.
  • the surface of the pair of press rolls according to the present invention is roughened to an average surface roughness (Ra) of 0.01 to 5 ⁇ m, and the press roll surface temperature is reduced in an inert gas atmosphere. 340—3 90. C, it is preferable to heat and press under the conditions of a linear pressure between press rolls of 50 kggcm to 300 kggcm (490 to 2940 NZcm) and a passage time of 2 to 5 seconds.
  • the pre-heating is performed in a state where the flatness is increased in a nitrogen atmosphere through a plurality of guide rolls each having a different height of a central axis.
  • the preheating in the present invention is desirably performed by a guide roll with a built-in heating means disposed at a position where the base material contacts the surface of the heating press roll.
  • FIG. 1 is a schematic flow chart showing a method for producing a double-sided conductor polyimide laminate of the present invention.
  • FIG. 2 is a schematic longitudinal sectional view showing an example of a guide roll for preheating.
  • FIG. 3 is a schematic longitudinal sectional view showing an example of a heating press roll.
  • Rotation support members such as bearings
  • conductive metal foils (M and M) used in the present invention include copper and aluminum having a thickness of 5 to 150 m.
  • Examples thereof include lithium, iron, silver, palladium, nickel, chromium, molybdenum, tungsten, zinc, and alloys thereof, and copper is preferable.
  • a rolled copper foil product which has been avoided from being used because of its low rigidity and difficulty in controlling the pressure by thermocompression bonding can be suitably used.
  • the surface may be subjected to siding, nickel plating, copper-zinc alloy plating, or chemical or mechanical surface treatment with aluminum alcoholate, aluminum chelate, silane coupling agent, or the like. .
  • Patent Document 1-14 a single-sided conductor laminate in which a polyimide resin is heat-cured and adhered as an insulating layer without adhesive to one surface of a conductive metal foil (M) that is strong is described in Patent Document 1-14.
  • the publicly known ones disclosed in and 5 can be used.
  • the polyimide resin used as the insulator layer is a general term for a resin having an imide ring structure, and examples thereof include polyimide, polyamideimide, and polyesterimide.
  • Examples of the polyimide resin layer include, but are not particularly limited to, those having low thermal expansion as described in Patent Documents 14 to 14, and thermoplastic polyimides which melt or soften when heated.
  • the insulating layer is composed of a base layer made of a thermoplastic polyimide resin obtained by heating and curing a polyimide precursor resin solution described in Patent Document 5, and a low thermal expansion polyimide resin.
  • An intermediate main layer and a top layer made of a thermoplastic polyimide resin are preferably composed of at least three polyimide resin layers.
  • the coefficient of linear expansion was determined using a sample that had completed the imidization reaction, heated to 250 ° C using a thermomechanical analyzer (TMA), cooled at a rate of 10 ° CZ, 240-100 The average linear expansion coefficient in the range of ° C was determined.
  • TMA thermomechanical analyzer
  • a polyimide resin having a unit structure represented by the following general formula (I) described in Patent Document 5 is desired. Good
  • thermoplastic polyimide resin used for the base layer and the top layer may have any structure as long as its glass transition point temperature is 350 ° C. or lower. It is preferable that the adhesive strength at the interface is sufficient when pressed under heat and pressure.
  • the thermoplastic polyimide resin as used herein includes those which can be adhered by pressure so that they do not necessarily show sufficient fluidity in a normal state above the glass transition point. Specific examples of the thermoplastic polyimide resin having such properties include those having a unit structure represented by the following general formula (II) or general formula (III) described in Patent Document 5 described above.
  • Ar is a divalent aromatic group having 12 or more carbon atoms.
  • divalent aromatic group Ar or Ar include, for example,
  • CH3 CH 3 or the like can be mentioned, preferably,
  • a curing agent such as a known acid anhydride-based amine-based curing agent is added to a polyimide precursor solution or a polyimide solution as described in Patent Document 5 above.
  • Various additives and catalysts such as a silane coupling agent, a titanate coupling agent, an adhesion-imparting agent such as an epoxy conjugate, and a flexibility-imparting agent such as rubber are added to the conductive metal foil (M). And then heat cured by heat treatment to obtain a single-sided conductor laminate.
  • the single-sided conductor laminate has a conductive metal foil (M) as a base layer, a thermoplastic polyimide resin layer as a base layer, an intermediate main layer as a low thermal expansion polyimide resin layer, and a top layer (outermost surface layer). It is preferable that a thermoplastic polyimide resin layer is laminated as ()).
  • a thermoplastic polyimide resin layer is laminated as ()).
  • the intermediate main layer does not include a low thermal expansion polyimide resin layer
  • the single-sided conductor laminate obtained in the heat curing step has a large warp and curl, and the workability in the subsequent steps is reduced. Significantly reduced.
  • the top layer (outermost layer) does not contain a thermoplastic polyimide resin layer, the adhesive force by thermocompression bonding with the conductive metal foil in the thermocompression bonding roll process will not be sufficiently exhibited. It is not preferred.
  • the ratio (t Zt) of the thickness of the low thermal expansion polyimide resin layer to the thickness t of the thermoplastic polyimide resin layer is in the range of 2-100, preferably 5-20. Good range.
  • the adhesive force by the thermocompression bonding in the second step is not sufficiently exhibited.
  • the application of the plurality of polyimide resins on the conductive metal foil (M) can be performed in the form of the resin solution, and is preferably described in Patent Documents 4 and 5 described above.
  • the heat conversion of the precursor to polyimide is performed simultaneously. It is preferred to do so. If another polyimide-based precursor solution is applied on the layer completely converted to polyimide and heat-treated to close the imide ring, the adhesion between the polyimide-based resin layers may not be fully exhibited. This causes the quality of the double-sided laminate of the product to deteriorate.
  • a knife coater, a die coater, a roll coater, a curtain coater, or the like is used as a method of applying a polyimide resin solution or a precursor solution thereof (polyamic acid solution) on the conductive metal foil (M).
  • the method can be carried out by a known method, particularly when a thick coating is performed, a die coater or a knife coater is suitable.
  • the polymer concentration of the polyimide-based precursor solution used for coating is usually 5 to 30% by weight, preferably 10 to 20% by weight, depending on the degree of polymerization of the polymer. If the polymer concentration is lower than 5% by weight, a single coating cannot provide a sufficient film thickness, and if the polymer concentration is higher than 30% by weight, the solution viscosity becomes too high and coating becomes difficult.
  • the polyamic acid solution applied to the conductive metal foil to a uniform thickness is then subjected to a heat treatment to remove the solvent and further close the imide ring.
  • a heat treatment to remove the solvent and further close the imide ring.
  • the final heat treatment temperature is usually preferably 300 to 400 ° C.
  • the solution gradually starts to occur, and at 300 ° C or lower, the polyimide film does not sufficiently align on the conductive metal foil, and a single-sided conductor laminate having good flatness cannot be obtained.
  • the overall thickness of the polyimide resin layer as an insulator thus formed is usually 10 to 150 m.
  • FIG. 1 shows a single-sided conductor laminate of the present invention and a conductive metal foil (M) introduced between a pair of press rolls, and laminated by heating and pressing.
  • M conductive metal foil
  • FIG. 2 is a schematic longitudinal sectional view showing an example of a guide roll for preheating.
  • FIG. 3 is a schematic longitudinal sectional view showing an example of a press roll.
  • FIG. 1 a single-sided conductor laminate 1 in which an insulating layer made of a polyimide resin is adhered to one surface of the above-described conductive metal foil (M) by heating and curing, and a conductive metal foil (M) 2 And together
  • the roll-winding state force is also continuously drawn out, and after a plurality of guide rolls 3, 3 ′, 4, 4 ′, etc., with different center axis heights, preheating is performed in a state where the flatness is increased, then Heating The conductive metal foil (M) is heated and pressed onto the top layer of the single-sided conductor laminate 1 by passing the pressure point between the press rolls in contact with the surfaces of the press rolls 5 and 6.
  • the double-sided conductor polyimide laminate 7 After forming the double-sided conductor polyimide laminate 7 that has been laminated and integrated, it is pre-cooled by a cooling means c such as spraying an inert gas for cooling as appropriate, and then it is passed through a plurality of guide rolls 8 and 8 'in the outside air. The rolled product 9 is further cooled.
  • a cooling means c such as spraying an inert gas for cooling as appropriate
  • the plurality of guide rolls 3, 3, 4, 4, 8, 8, etc. and the pair of heating press rolls 5, 6 are at atmospheric pressure or higher in order to prevent irritation of the conductive metal foil. It is desirable that the sealing mechanism (labyrinth seal) 11 be provided in the processing chamber 10 held in an atmosphere of an inert gas such as nitrogen gas, and provided at the base material inlet and the laminate outlet.
  • an inert gas such as nitrogen gas
  • Processing room 1 Before being introduced into the processing chamber 10, it is desirable to enhance the flatness under tension by passing through a plurality of guide rolls each having a different center axis height. Processing room 1
  • the double-sided conductor polyimide laminate after being pulled out from 0 is also passed through under tension by a plurality of guide rolls with different center axis heights in the open air before being made into a rolled product 9. It is desirable to further lower the surface temperature.
  • a heating step is used. Less roll 5.6 Force to make guide rolls 3, (4,) just before heating roll with built-in heating means or Heating lamp or heater that emits radiant energy just before heating press roll h or h
  • Preheating may be performed by installing 12 or the like, or both preheating means may be used in combination.
  • An example of a particularly preferred type of preheating guide roll with a built-in heating means will now be described with reference to FIG.
  • a guide roll 3 ′ (4 ′) has a rotation support member 13 such as a bearing in which the outer periphery of the cavity and a central axis 12 from which both ends of the cavity also protrude are disposed inside both ends of the outer periphery of the roll. And the roll outer periphery is freely rotated around the central axis 12 by the rotation support member 13.
  • Heating control means 14 by radiant heat selected from a heating coil by dielectric heating, an infrared heater, a resistance heating coil, and the like are appropriately divided or integrated and fixed to a central axis 12 inside the roll.
  • the radiant heat energy applied to the inner wall surface of the roll is controlled by changing the value of the current flowing to the roll.
  • a jacket or heat pipe filled with an organic heat medium having good heat conductivity to uniformly heat the surface temperature with radiant heat energy irradiated from the heating control means is used.
  • the conductive element 17 is embedded and arranged.
  • the strong heat pipe is instantaneously transmitted to the entire outer surface of the roll by heat transfer of the heating means 14 of the center shaft 12 described above, so that an axial temperature difference with high surface temperature accuracy hardly occurs.
  • the preheating temperature is preferably 200 ° C. or higher and a temperature lower than the glass transition point of the thermoplastic polyimide resin as the top layer resin, preferably 200 to 350 ° C. It is desirable that the temperature of the outer surface of the preheating hole be monitored by a temperature sensor embedded in the surface of the roll, and the current value supplied to the heating control means 14 be controlled so as to always maintain a predetermined temperature. If preheating is not performed, or if the preheating temperature is 200 ° C or less, the temperature is extremely thin! It is not preferable because a large number of vertical stripes, horizontal stripes and converging wrinkles are generated on the surface, which leads to poor appearance and poor adhesiveness. If the temperature is higher than the glass transition point, the polyimide resin deteriorates, which is not preferable.
  • the pair of heating presses 5 (6) are structurally structurally similar to the heating press described in FIG.
  • the same as the guide roll 3 '(4') with built-in means and the same reference numerals as those shown in FIG. 2 have the same meanings as those described in FIG. 2, but have a larger diameter and a heating means. It is divided into three parts: 14, 15, and 16 and is different from that in that it is forcibly rotated by a stirring power mechanism (not shown).
  • a means for uniformizing the surface temperature by embedding a heat conductive element 17 called a jacket or a heat pipe filled with an organic heat medium having good heat conductivity. .
  • the temperature of the outer surface of the press roll is preferably controlled to a temperature not lower than the glass transition point of the thermoplastic polyimide resin, and more preferably to a set value in the range of 360 to 390 ° C. It is desirable that the temperature of the outer surface of the press roll that is strong be monitored by a temperature sensor embedded in the roll surface, and the current value supplied to the heating means 14, 15, 16 be controlled.
  • the pair of heated press rolls 5 and 6 hold at least one press roll (not shown) arranged vertically on both sides of the center shaft 12 under a nitrogen atmosphere, and pressurize the press roll to a predetermined position.
  • the gap is adjusted by moving the gears by pressurizing means using gears, so that the optimal pressing force is transmitted from the press roll cap to the base materials 1 and 2 to be introduced.
  • the line pressure between the heating press rolls should be 50-500KgZcm (490N / cm-4900N / cm), preferably 100-300KgZcm (980NZcm-2940NZcm), and the heat and pressure should be 2-5 seconds. Is desirable.
  • a pair of heated press rolls to be used is used in a roughened state in which the average surface roughness (Ra) of the press roll is 0.01 to 5 m, preferably 0.1 to 3 m. Is desirable. If the surface roughness (R a ) of the press roll is 0.01 ⁇ m or less, the double-sided conductor polyimide laminate coming out from between the heating rolls will cause a sticking due to the roll adhesion, resulting in a seam during running or copper. Inevitably pits (dents or dents of several tens of microns) caused by the adhesion of foreign substances such as foil powder are unavoidable.
  • the unevenness of the roll surface is transferred to the surface of the laminate, which is not preferable.
  • the roughened surface of the roll can be adjusted by spraying a ceramic coating.
  • the surface roughness (Ra) is determined with a stylus-type surface roughness meter using a diamond needle.
  • a double-sided conductor polyimide laminate 7 in which a conductive metal foil (M) is laminated and integrated by heating and pressure bonding on the top layer of the single-sided conductor laminate 1 by heating press rolls 5 and 6 is formed.
  • cooling means C such as blowing inert gas for cooling, but the cooling temperature by cooling means C
  • a temperature below the glass transition point of the thermoplastic polyimide resin as the top layer resin preferably 200 ° C. 300 o C force S desired ⁇ .
  • the double-sided conductor type polyimide laminate obtained in the present invention has a conductive metal layer as a conductor on both sides of a polyimide resin layer as an insulator, and has only a good appearance and no occurrence of shiny.
  • a roll-wound product that does not vary in quality and is used as an electronic wiring material to be used with the advancement of miniaturization and light weight of mobile phones, digital cameras, navigators, and other various electronic devices that are becoming more sophisticated. It is suitable.
  • the coefficient of linear expansion was measured by using a thermomechanical analyzer (TMA100) manufactured by Seiko Denshi Kogyo Co., Ltd. and then cooled at a rate of 10 ° CZ after increasing the temperature to 250 ° C. The average linear expansion coefficient during C was calculated and obtained.
  • TMA100 thermomechanical analyzer manufactured by Seiko Denshi Kogyo Co., Ltd.
  • the average linear expansion coefficient during C was calculated and obtained.
  • the extreme radius of the copper-clad product having dimensions of 100 mm ⁇ 100 mm after imidization by heat treatment was measured.
  • the adhesive strength of a single-sided copper-clad product was measured according to JIS C5016: 7.1, using a pattern with a conductor width of 3mm, and peeling the copper foil in the 180 ° direction at a speed of 50mmZ. It was obtained as a value.
  • a polyimide precursor solution was prepared in the same manner as in Synthesis Example 1, except that 1 mol of DDE was used as the diamine component and 1 mol of BTDA was used as the acid anhydride component.
  • the obtained polyimide precursor solution had a polymer concentration of 15% by weight and an apparent viscosity of 300 mPa ⁇ s at 25 ° C. by a B-type viscometer.
  • the polyimide precursor solution 2 prepared in Synthesis Example 2 was uniformly applied to a roughened surface of a 35 ⁇ m roll-shaped electrolytic copper foil (manufactured by Nippon Gould Co., Ltd.) with a thickness of 12 m using a die coater. The solvent was removed by continuous treatment in a hot air drying oven at 120 ° C. Next, the polyimide precursor solution 1 prepared in Synthesis Example 1 was uniformly coated with a thickness of 200 m from above the polyimide precursor layer using a reverse roll coater, and was continuously applied in a hot air drying oven at 120 ° C.
  • the polyimide precursor solution 2 prepared in Synthesis Example 2 was evenly applied to a thickness of 15 m, and then heated from 120 ° C to 360 ° C in a hot-air drying oven for 30 minutes. The temperature was raised, heat treatment was performed, and imidization was performed to obtain a single-sided copper-clad product a having a polyimide resin layer having a thickness of 25 ⁇ m and having good flatness without warpage or curling.
  • the 180 ° peel strength (JIS C-5016) between the copper foil layer of this single-sided copper clad product a and the polyimide resin layer was 0.8 kgZcm, and the coefficient of thermal expansion of the film after etching was 0.8 kgZcm. was 23. 5 X 10- 6 (1Z ° C).
  • the resin-coated surface of the copper-clad product with a single-sided insulation layer prepared in the production example and the rolled sheet having a width of 500 mm and the roughened surface of a rolled copper foil having a width of 35 m having the same width as the rolled sheet were prepared.
  • a pair of heated press rolls (outer diameter: 300 mm, width: 800 mm, and naphthalene sealed as a uniform heating means near the surface) were passed through guide rolls under a nitrogen atmosphere.
  • a heat pipe of a ket type is embedded, and a structure in which a dielectric heating coil is built in the center axis of the inside).
  • the hot press was performed under the conditions of a surface temperature of 360 ° -390 ° C., a linear pressure between the press opening of 150 ° -170 kg / cm, and a transit time of 2-5 seconds.
  • the double-sided copper obtained was obtained when the preheating was not performed under the same base material and the same heating press roll conditions, and when the preheating temperature was changed to 150 ° C, 250 ° C, and 340 ° C.
  • Table 1 shows the results of a visual inspection of the surface condition of the upholstered product.
  • Example 1 the set temperature of the heated press roll surface was set at 360 ° C, the linear pressure between the press rolls was set at 150 kgZcm, the passage time was set at 3 seconds, and there was no preheating of the base material introduced between the heated press rolls. ⁇
  • the surface roughness (Ra) of the heated press roll is 0.01 or less, 0.05, 0.20, 10.0 for both the case and the case where the preheating temperature is 250 ° C and 340 ° C.
  • Table 2 shows the results of a visual inspection of the surface condition of the double-sided copper-clad product obtained when the distance was changed between four steps of m.
  • the method for producing a double-sided conductor polyimide laminate of the present invention is a method for continuously producing a double-sided conductor polyimide laminate in a roll-wound state with a stable double-sided conductor polyimide-based laminate having no appearance defects such as vertical wrinkles. It is a manufacturing method with high industrial applicability.

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  • Manufacturing & Machinery (AREA)
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  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de production en continu d'un stratifié en polyimide conducteur double face exempt d'apparence défectueuse, telle que des plis longitudinaux et stable en termes de qualité à l'état roulé. Ce procédé comprend les étapes consistant à introduire en continu un stratifié conducteur à face unique comprenant au moins trois couches de résine polyimide, une couche de base, une couche intermédiaire principale et une couche supérieure formée sur la feuille métallique conductrice (M1), ainsi qu'un matériau de base comprenant une feuille métallique conductrice (M2) entre deux rouleaux de presse à chaud ; et à stratifier et intégrer la feuille métallique conductrice (M2) sur la couche supérieure par collage par presse à chaud, caractérisé en ce que le stratifié conducteur à face unique et la feuille métallique conductrice (M2), avant d'être introduits entre les rouleaux de la presse à chaud, sont chauffés respectivement de manière préliminaire sous une atmosphère de gaz inerte à au moins 200 °C et jusqu'au point de transition vitreuse de la résine polyimide dans la couche supérieure, puis ils sont mis en contact avec les surfaces des rouleaux de la presse à chaud.
PCT/JP2004/019523 2004-01-16 2004-12-27 Procede de production en continu de stratifie en polyimide conducteur double face WO2005068183A1 (fr)

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DE102013013495A1 (de) * 2013-08-16 2015-02-19 Thyssenkrupp Steel Europe Ag Verfahren und Vorrichtung zur Herstellung eines Verbundwerkstoffs
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