WO2004103042A1 - Process for producing printed electronic circuits, including multilayer, by endothermic induction heating - Google Patents
Process for producing printed electronic circuits, including multilayer, by endothermic induction heating Download PDFInfo
- Publication number
- WO2004103042A1 WO2004103042A1 PCT/IT2003/000403 IT0300403W WO2004103042A1 WO 2004103042 A1 WO2004103042 A1 WO 2004103042A1 IT 0300403 W IT0300403 W IT 0300403W WO 2004103042 A1 WO2004103042 A1 WO 2004103042A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packages
- pressing
- alternating
- generator
- endothermic
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—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
- H05K3/022—Processes for manufacturing precursors of printed circuits, i.e. copper-clad substrates
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
- B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
- B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
-
- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
- B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
- B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
- B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
-
- 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
- B29C66/72—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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
-
- 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
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
- B32B2310/0812—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using induction
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
- H05K2203/101—Using electrical induction, e.g. for heating during soldering
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1536—Temporarily stacked PCBs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
Definitions
- the invention concerns processes for making printed electronic circuits, including multilayer circuits.
- printed electronic circuit plates are formed by stable association of heated and pressed sheets of pre-preg and of copper.
- the pre-preg sheets can be of paper, fiberglass or materials of other kinds, impregnated with plastic material which may be phenolic, melamine, epoxy, polyester or of other types.
- Pressure and heat is obtained by forming a pile of substantially equal packages comprising the components of said circuits separated by perfectly smooth flat plates, and placing said pile in presses provided with heating plates.
- the presses suited to this type of production are complex and of low efficiency due to the difficulties of obtaining, by conduction, uniform temperatures among the packages making up the pile of which obviously only those at each end of the pile are in contact with the heating plates of the press. Propagation of heat from the heating plates to the piled packages is greatly hindered by the nature of the components, for example the pre-preg, which by their very nature are poor conductors of heat.
- One process consists in substituting the copper laminae with a band wound S-wise round each package in the pile so that it is only necessary to close the electric circuit at the two ends of the pile. - Using another process the two opposite ends of each copper lamina are connected to the conductors of an electric circuit.
- Subject of the invention is a process for producing plastic laminates with a copper lamina, for electronic circuits, including multilayer, in a cold press and with endothermic heating of a pile of packages of the components.
- Endothermic heating is obtained by generating electric current in the copper laminae by induction created inside the press by a ferromagnetic core with a winding through which alternating current passes.
- the alternating current is low-frequency.
- the ferromagnetic core comprises two horizontal yokes and at least one column with electric winding connected in a closed ciricuit to the generator of alternating current.
- the pile of packages is placed between the lower fixed yoke and , the upper mobile yoke to which the pressure required for pressing is applied.
- the upper mobile yoke is connected to the pistons of one or more hydraulic cylinders situated on an upper fixed plate of the press.
- one end face of said mobile yoke adheres to the opposite internal face of the column ensuring continuity of the ferromagnetic core.
- the generator of alternating electric current is connected to a programmable electronic processor by a keyboard and display, for programming production cycles, setting the preferred temperatures to be obtained in the copper laminae, as well as pressing times, frequency and power of the electric current.
- the electronic processor is provided with a control and regulation circuit that automatically controls and - regulates temperatures, pressing times, frequency and power of the alternating electric current to ensure that these values are applied as programmed.
- FIG. 1 Front view of a cold press in which a pile of packages for printed circuits has been placed.
- Fig. 2 Perpsective view of the package of printed circuits. . Fig. 3 Front view of the press at the start of pressing.
- the press 10 presents the base plate 20 and upper fixed plate 21. Hydraulic cylinders 30, 31 with pistons 40, 41 , are fixed to the upper plate 21 through which said pistons pass. Installed on the plate 20 is the ferromagnetic core 50 comprising the column 51 and yokes 55, 56.
- the electric winding 60 Around the column 50 is the electric winding 60 whose ends 75, 76 can be connected in a closed circuit to the generator 70 of low- frequency alternating current.
- the generator 70 is connected by cables 85 to the electronic processor 80 comprising the display 81 and keyboard 82 through which the stages of the cycle, such as temperatures, timing, frequency and electric power, can be set.
- the electronic processor 80 comprising the display 81 and keyboard 82 through which the stages of the cycle, such as temperatures, timing, frequency and electric power, can be set.
- the end face 57 of the upper mobile yoke 56 adheres to the opposing internal face 52 of said column 50 ensuring continuity of the ferromagnetic core.
- the cycle starts on pressing the push button ⁇ 3.
- the electronic processor maintains control, from one moment to the next, over the programmed characteristics.
- the mobile upper yoke 56 fixed to the pistons 40, 41 , constitutes that part of the press which generates the required pressure.
- the pile 88 comprising a number of superimposed equal packages such as 90, is placed between the lower fixed yoke 55 and the mobile yoke 56.
- each package between the separating plates 100, 101 , comprises two copper laminae 102 and 103, two groups 104, 105 of sheets of pre-preg, and the internal layer 106.
- the low-frequency alternating current provided by the generator 70 creates, between yokes 55 and 56, electromagnetic waves 110 which, on passing through the pile 88 of packages, heat the copper laminae, like 102 and 103, by induction.
- a special software having established, through the keyboard 82, the desired sequences of current voltage and frequency, temperatures and times, and the cycle having been started by pressing the push button 83, the mobile yoke 56, pressed by the pistons 40, 41 in the cylinders 30, 31 applies the required pressure to the pile 88 of packages, its end face 57 adhering to the internal face 52 of the column 51, while the alternating electric current creates, by induction, the most suitable degree of heat in the copper laminae.
- the invention offers evident advantages.
- the presses need not provide heat as well as pressure, they are much more simply constructed than are those at present used. Heat is generated in each single package much faster and is more uniform since propagation of calories in any one package is not hindered by the sheets of pre-preg in those above or below it. Mounting problems arising over endothermic heating where there is an S-shaped band in each package, or alternatively by closed circuit electrical connections for each copper lamina, are here avoided. Summing up the advantages: production of printed circuits is considerably faster and cheaper than with present systems using either hot or cold presses.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003304130A AU2003304130A1 (en) | 2003-05-15 | 2003-06-27 | Process for producing printed electronic circuits, including multilayer, by endothermic induction heating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20030967 ITMI20030967A1 (en) | 2003-05-15 | 2003-05-15 | PROCEDURE FOR THE PRODUCTION OF ELECTRONIC CIRCUITS PRINTED EVEN MULTILAYER BY INDUCTION THERMAL HEATING. |
ITMI2003A000967 | 2003-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004103042A1 true WO2004103042A1 (en) | 2004-11-25 |
Family
ID=33446430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2003/000403 WO2004103042A1 (en) | 2003-05-15 | 2003-06-27 | Process for producing printed electronic circuits, including multilayer, by endothermic induction heating |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003304130A1 (en) |
IT (1) | ITMI20030967A1 (en) |
WO (1) | WO2004103042A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102625586A (en) * | 2012-04-19 | 2012-08-01 | 苏州市嘉明机械制造有限公司 | Novel oil pressure type copper foil electric conduction pressing machine |
CN102700231A (en) * | 2012-06-28 | 2012-10-03 | 特新电路材料(东莞)有限公司 | Laminating device of circuit board laminating machine and pressing method applying laminating device |
ITMI20120194A1 (en) * | 2012-02-13 | 2013-08-14 | Cedal Equipment Srl | IMPROVEMENTS IN THE MANUFACTURE OF BATTERIES OF MULTILAYER PLASTIC LAMINATES FOR PRINTED CIRCUITS |
DE202014010550U1 (en) | 2013-02-16 | 2015-12-10 | Duetto Integrated Systems, Inc. | Improved system and method for producing flexible laminated circuit boards |
US11148384B2 (en) | 2015-12-28 | 2021-10-19 | Cedal Equipment Co., Ltd. | Thermo induction press for welding printed circuits and method carried out thereof |
RU2795438C2 (en) * | 2019-02-06 | 2023-05-03 | Чедатек С.Р.Л. | Method for obtaining layered products from various materials |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4650947A (en) * | 1985-02-18 | 1987-03-17 | Hutton Roger L | Induction tacking method and apparatus |
JPH01255526A (en) * | 1988-04-05 | 1989-10-12 | Matsushita Electric Works Ltd | Manufacture of laminated sheet |
US5483043A (en) * | 1993-11-29 | 1996-01-09 | General Electric Company | Induction heating of polymer matrix composites in a mold press |
US5615470A (en) * | 1992-05-05 | 1997-04-01 | Cedal S.R.L. | Process for producing plastic laminates with metal laminae |
US5647940A (en) * | 1993-03-18 | 1997-07-15 | Cedal S.R.L. | Process for automatically connecting a source of electric current and a pile of packages to make plastic laminates with endothermic heating |
JPH11188744A (en) * | 1997-12-26 | 1999-07-13 | Kobe Steel Ltd | Laminate vulcanizing apparatus and method |
EP1002639A1 (en) * | 1997-08-06 | 2000-05-24 | Nitta Corporation | Method of preheating laminate, and method and apparatus for producing the same |
-
2003
- 2003-05-15 IT ITMI20030967 patent/ITMI20030967A1/en unknown
- 2003-06-27 AU AU2003304130A patent/AU2003304130A1/en not_active Abandoned
- 2003-06-27 WO PCT/IT2003/000403 patent/WO2004103042A1/en active Application Filing
Patent Citations (7)
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US4650947A (en) * | 1985-02-18 | 1987-03-17 | Hutton Roger L | Induction tacking method and apparatus |
JPH01255526A (en) * | 1988-04-05 | 1989-10-12 | Matsushita Electric Works Ltd | Manufacture of laminated sheet |
US5615470A (en) * | 1992-05-05 | 1997-04-01 | Cedal S.R.L. | Process for producing plastic laminates with metal laminae |
US5647940A (en) * | 1993-03-18 | 1997-07-15 | Cedal S.R.L. | Process for automatically connecting a source of electric current and a pile of packages to make plastic laminates with endothermic heating |
US5483043A (en) * | 1993-11-29 | 1996-01-09 | General Electric Company | Induction heating of polymer matrix composites in a mold press |
EP1002639A1 (en) * | 1997-08-06 | 2000-05-24 | Nitta Corporation | Method of preheating laminate, and method and apparatus for producing the same |
JPH11188744A (en) * | 1997-12-26 | 1999-07-13 | Kobe Steel Ltd | Laminate vulcanizing apparatus and method |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 014, no. 006 (M - 916) 9 January 1990 (1990-01-09) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20120194A1 (en) * | 2012-02-13 | 2013-08-14 | Cedal Equipment Srl | IMPROVEMENTS IN THE MANUFACTURE OF BATTERIES OF MULTILAYER PLASTIC LAMINATES FOR PRINTED CIRCUITS |
WO2013121450A1 (en) * | 2012-02-13 | 2013-08-22 | Cedal Equipment Srl | Improvements in the manufacturing of stacks of multiplayer plastic laminates for printed circuits |
KR101907628B1 (en) | 2012-02-13 | 2018-10-12 | 세달 이큅먼트 에스알엘 | Improvements in the manufacturing of stacks of multilayer plastic laminates for printed circuits |
CN102625586A (en) * | 2012-04-19 | 2012-08-01 | 苏州市嘉明机械制造有限公司 | Novel oil pressure type copper foil electric conduction pressing machine |
CN102700231A (en) * | 2012-06-28 | 2012-10-03 | 特新电路材料(东莞)有限公司 | Laminating device of circuit board laminating machine and pressing method applying laminating device |
DE202014010550U1 (en) | 2013-02-16 | 2015-12-10 | Duetto Integrated Systems, Inc. | Improved system and method for producing flexible laminated circuit boards |
US11148384B2 (en) | 2015-12-28 | 2021-10-19 | Cedal Equipment Co., Ltd. | Thermo induction press for welding printed circuits and method carried out thereof |
RU2795438C2 (en) * | 2019-02-06 | 2023-05-03 | Чедатек С.Р.Л. | Method for obtaining layered products from various materials |
Also Published As
Publication number | Publication date |
---|---|
ITMI20030967A1 (en) | 2004-11-16 |
AU2003304130A1 (en) | 2004-12-03 |
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