WO2006040942A1 - 多層回路基板の製造方法 - Google Patents
多層回路基板の製造方法 Download PDFInfo
- Publication number
- WO2006040942A1 WO2006040942A1 PCT/JP2005/018109 JP2005018109W WO2006040942A1 WO 2006040942 A1 WO2006040942 A1 WO 2006040942A1 JP 2005018109 W JP2005018109 W JP 2005018109W WO 2006040942 A1 WO2006040942 A1 WO 2006040942A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- thermal expansion
- expansion coefficient
- multilayer circuit
- laminate
- 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
- H05K3/46—Manufacturing multilayer circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4652—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern
-
- 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
- H05K3/4614—Manufacturing multilayer circuits by laminating two or more circuit boards the electrical connections between the circuit boards being made during lamination
-
- 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
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0355—Metal foils
-
- 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
- H05K2201/06—Thermal details
- H05K2201/068—Thermal details wherein the coefficient of thermal expansion is important
-
- 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
- H05K2203/06—Lamination
- H05K2203/068—Features of the lamination press or of the lamination process, e.g. using special separator sheets
-
- 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
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
- H05K3/4053—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques
- H05K3/4069—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques for via connections in organic insulating substrates
-
- 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
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49126—Assembling bases
Definitions
- the present invention relates to a method for manufacturing a multilayer circuit board in which a plurality of layers of circuit patterns are connected to inner via holes with a conductive paste.
- Japanese Patent Publication No. Hei 6-268345 proposes a method for manufacturing a high-density circuit board having a novel configuration in which inner via holes are connected by a conductive paste.
- FIGS. 5A to 5F are diagrams for explaining a conventional method for manufacturing a double-sided circuit board, and each step up to the completion of the double-sided circuit board is shown in cross-sectional views.
- the pre-predder sheet 21 is 250 mm square and about 150 ⁇ m thick.
- a base material made of a composite material in which a non-woven aromatic polyamide fiber is impregnated with a thermosetting epoxy resin is used.
- polyethylene terephthalate is used for the release film 22 having a thickness of about 10 m and having a Si-type release agent coated on one side.
- the through-holes 23 provided in the pre-prepared sheet 21 are filled with a conductive paste 24 electrically connected to a metal foil 25a, 25b of 12 ⁇ m thick Cu or the like to be attached to both surfaces of the pre-predder sheet 21. Yes.
- a through hole 23 is formed at a predetermined location of the sheet 21 using a laser processing method or the like.
- the through-hole 23 is filled with a conductive paste 24.
- the method of filling the conductive base 24 is to place a pre-prepared sheet 21 having a through-hole 23 on a table of a printing machine (not shown), and directly print the conductive paste 24 with the upper force of the release film 22.
- the release film 22 on the upper surface plays a role of a printing mask and a role of preventing contamination of the surface of the pre-preda sheet 21.
- the release film 22 is peeled from both surfaces of the pre-preder sheet 21.
- a metal foil 25b such as copper, a pre-predder sheet 21, a metal foil 25a, and a laminate plate 26a are positioned and stacked in this order on the laminate plate 26b, and in this state by a heat press Heat and pressurize.
- 25b is electrically connected by a conductive paste 24 filled in a through hole 23 provided at a predetermined position.
- a circuit pattern is formed by selectively etching the metal foils 25a and 25b on both sides (not shown), and the double-sided circuit board shown in FIG. 5F is obtained.
- 6A to 6D show sectional views of a conventional method for manufacturing a multilayer circuit board, using a four-layer board as an example.
- the double-sided circuit board 30 having the circuit patterns 31a and 31b manufactured according to FIGS. 5A to 5F as the core circuit board and the through holes manufactured in FIGS. 5A to 5D
- Prepredder sheets 21a and 21b filled with the conductive paste 24 are prepared.
- a material having a linear expansion coefficient equivalent to the linear expansion coefficient of the metal foils 25a and 25b (for example, 18 X 10 _6 Z ° C in the case of copper) is used.
- a four-layer substrate is obtained by selectively etching the metal foils 25a and 25b on both sides to form circuit patterns 32a and 32b.
- the core circuit board is replaced with the double-sided circuit board 30, and the core circuit board having 4 or more layers is used.
- a multilayer circuit board can be obtained.
- One aspect of the present invention is a method of manufacturing a multilayer circuit board by laminating a core circuit board having a circuit pattern and a pre-preder sheet having a through hole filled with a conductive paste. And a step of forming a laminate formed by laminating a core circuit board and a pre-preder sheet between a pair of plates and heating and pressurizing them, and using the thermal expansion coefficient of the plate for the core. This is a method of manufacturing a multilayer circuit board having the same thermal expansion coefficient as that of the circuit board.
- the epoxy resin component in the pre-prepared sheet melts in particular, making the extension of the laminated plate and the core circuit board the same in the region where the grip force is small, making it conductive. If the high-quality multilayer circuit board with stable connection resistance can be realized without causing the adhesive paste to collapse, it has the effect.
- Another aspect of the present invention includes a step of preparing a core circuit board having a circuit pattern, a step of measuring a thermal expansion coefficient of the core circuit board, and a measured thermal expansion of the core circuit board. And a step of selecting a plate having a thermal expansion coefficient equivalent to the tension coefficient.
- FIG. 1A is a cross-sectional view showing a method for manufacturing a multilayer circuit board in an embodiment of the present invention.
- FIG. IB is a cross-sectional view showing a method for manufacturing a multilayer circuit board in an embodiment of the present invention.
- FIG. 1C is a cross-sectional view showing the method for manufacturing the multilayer circuit board in accordance with the exemplary embodiment of the present invention.
- FIG. 1D is a cross-sectional view showing the method for manufacturing the multilayer circuit board in accordance with the exemplary embodiment of the present invention.
- FIG. 2A is a cross-sectional view showing a method for manufacturing a multilayer circuit board in an embodiment of the present invention.
- FIG. 2B is a cross-sectional view showing the method for manufacturing the multilayer circuit board in the embodiment of the present invention.
- FIG. 2C is a cross-sectional view showing the method of manufacturing the multilayer circuit board in the embodiment of the present invention.
- FIG. 2D is a cross-sectional view showing the method for manufacturing the multilayer circuit board in accordance with the exemplary embodiment of the present invention.
- FIG. 2E is a cross-sectional view showing the method for manufacturing the multilayer circuit board in the embodiment of the present invention.
- FIG. 2F is a cross-sectional view showing the method for manufacturing the multilayer circuit board in the embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional view of a pre-predder sheet in an embodiment of the present invention.
- FIG. 4 is a cross-sectional view showing the conductive paste in the embodiment of the present invention.
- FIG. 5A is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 5B is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 5C is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 5D is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 5E is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 5F is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 6A is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 6B is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 6C is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 6D is a cross-sectional view showing a conventional method of manufacturing a multilayer circuit board.
- FIG. 7 is a schematic cross-sectional view of a pre-preder sheet in a method for manufacturing a multilayer circuit board as a comparative example.
- FIG. 8 is a cross-sectional view showing a conductive paste in a method for manufacturing a multilayer circuit board as a comparative example.
- the metal foil of the core circuit board (double-sided circuit board 30 in the conventional example) at the time of multilayering is used.
- the amount of epoxy resin used to fill the recesses in 25a and 25b must be the same as in the case of a prepreader sheet with a thickness of 100 ⁇ m.
- the schematic configuration of the pre-predder sheet 41 having a thickness of 60 ⁇ m is as shown in FIG. 7, in which a thermosetting epoxy resin layer 28 is formed on the front and back of the aromatic polyamide fiber 27 of the center. It will be in the state where it was done. Also, the epoxy resin layer 28 on the front and back surfaces has a resin amount necessary for bonding the circuit pattern of the core circuit board to the metal foil.
- the inventor of the present application has found the following problems in the method of manufacturing a multilayer circuit board as a comparative example shown in FIG.
- a relatively thick prepreg sheet used in a conventional method for producing a multilayer circuit board is a state in which an epoxy resin is impregnated in an aromatic polyamide fiber. Since the surface of the resin layer is thin, the degree of freedom of resin is small (ie, the flow resistance is large) even in the melting region of epoxy resin by heating with a hot press, and the double-sided circuit board 30 and metal foil 25a, 25b The expansion of the difference in thermal expansion coefficient that occurred during the period was absorbed.
- the epoxy resin layer on the front and back of the pre-predated sheet 21 is formed on the outer side of the aromatic polyamide fiber. Therefore, the degree of freedom in the melting region of the epoxy resin by heating in the hot press increases (that is, the flow resistance decreases), and the thermal expansion that occurs between the metal foils 25a and 25b with the double-sided circuit board 30 It is considered that the expansion of the coefficient difference cannot be absorbed.
- the conductive paste 24 falls to the outside and deforms when the core circuit board is used as a reference, and the connection resistance becomes unstable. Is heading. As shown schematically in Fig. 8, the “falling” of the conductive paste 24 is The electric paste 24 is deformed so as to be inclined with respect to the double-sided circuit board 30 from a right angle direction in the direction of arrow F. In particular, as the thickness of the core circuit board force layer board and the 6-layer board increases, the rigidity of the core circuit board increases and the difference in thermal expansion coefficient increases, so that the deformation of the via filled with the conductive base becomes zero. When the tendency to loosen or via collapse occurred, the tendency was confirmed.
- the present inventor found the following facts. That is, while the linear expansion coefficient of the laminated plates 26a, 26b and the metal foils 25a, 25b is about 18 ⁇ 10_6 Z ° C, the linear expansion coefficient of the double-sided circuit board 30 that also has aromatic polyamide fiber force is Although it varies depending on the residual rate of the metal, it is 10 X 10 _6 to 12 X 10 _6 / ° C, so there is a difference in thermal expansion between the laminated plates 26a and 26b and the metal foils 25a and 25b and the double-sided circuit board 30. It was confirmed. In the present embodiment, the linear expansion coefficient is measured and compared as the thermal expansion coefficient, but it can also be compared using the body expansion coefficient.
- the inventor selects and uses a plate having a thermal expansion coefficient equivalent to the thermal expansion coefficient of the core circuit board as the laminated plate used during the hot press, and thereby using the conductive paste.
- a manufacturing method that can provide a high-quality multilayer circuit board that eliminates deformation and has stable connection resistance.
- One aspect of the present invention is a method for producing a multilayer circuit board from a core circuit board having a circuit pattern and a pre-predder sheet in which through holes are filled with a conductive bed, and the heat of the laminated plate
- the expansion coefficient is equal to the thermal expansion coefficient of the core circuit board.
- One aspect of the present invention is a method for producing a multilayer circuit board, wherein the total thickness of the resin layers formed on the front and back of the substrate is 20 ⁇ m or more.
- the total thickness of the resin layer is 20 m or more, it is possible to adopt a pre-preder sheet of 60 m or less, and a multilayer board can be realized.
- One embodiment of the present invention is a method for producing a multilayer circuit board comprising a multilayer circuit board having four or more layers. Is the law. Even if it is a multilayer circuit board with a core circuit board strength layer or more, by making the thermal expansion coefficient of the laminated plate equal to the thermal expansion coefficient of the core circuit board, the deformation of the conductive base is eliminated, In addition to providing a high-quality multilayer circuit board with stable connection resistance, it is possible to realize a higher multilayer.
- One embodiment of the present invention is a method for manufacturing a multilayer circuit board, wherein the thickness of the core circuit board is at least one times the thickness of the pre-preder sheet. As a result, a thin plate sheet can be used, and a thin board of a multilayer circuit board can be realized.
- the thickness of the pre-predder is 150 m
- the thickness of the double-sided core circuit board is 124 m
- the thickness of the double-sided core circuit board is equal to the thickness of the pre-predder sheet. Less than 1 time.
- the present invention can employ a pre-prepared sheet having a thickness of 70 m for a core circuit board having a thickness of 84 / z m on both sides. That is, a high-quality multilayer circuit board with stable connection resistance can be realized even when the thickness of the core circuit board is more than 1 times the thickness of the pre-preda sheet.
- One aspect of the present invention is a method for manufacturing a multilayer circuit board in which metal foils are further stacked on the front and back of a laminated member.
- a multilayer circuit board having a circuit pattern on the surface layer can be easily realized in multi-layers, and by making the thermal expansion coefficient of the laminated plate equal to the thermal expansion coefficient of the core circuit board, metal foils having different thermal expansion coefficients can be obtained. Even when laminated, the rigidity of the metal foil is small and it is possible to prevent wrinkling of the metal foil due to the difference in thermal expansion coefficient by following the laminated plate.
- One aspect of the present invention is a method for manufacturing a multilayer circuit board, including alternately stacking a plurality of core circuit boards having a circuit pattern and a plurality of pre-predder sheets filled with a conductive bed in through holes. is there. It is possible to adopt a method in which a plurality of pre-prepared sheets and core circuit boards are stacked and stacked at the same time, realizing a high multi-layer structure and a high-quality multi-layer circuit board with stable connection resistance.
- a cushioning material is disposed on the outside of the laminate, and they are disposed on the transport plate, so that the thermal expansion coefficient of the transport plate is equal to the thermal expansion coefficient of the multilayer plate. It is a manufacturing method of a circuit board. As a result, high-quality multilayer circuits with stable connection resistance and small dimensional changes due to thermal expansion of the laminated plate even when the laminate is configured in multiple stages. A substrate can be realized and productivity can be improved.
- One aspect of the present invention includes that cushion materials are disposed on the outside of the laminate, and that the cushion materials are disposed on the transport plate, and the cushion material includes the thermal expansion of the laminate plate and the transport plate.
- a method for producing a multilayer circuit board characterized in that the multilayer circuit board is made of a material capable of absorbing the difference in thermal expansion.
- the material that can absorb the difference in thermal expansion is a material that can relieve the stress generated based on the difference in thermal expansion between the laminated plate and the transport plate.
- a material having a low elastic modulus can be used.
- One aspect of the present invention is a method for producing a multilayer circuit board, wherein the pre-predator sheet is a B-stage shape in which a base material of a woven fabric is impregnated with a thermosetting resin.
- the pre-predator sheet is a B-stage shape in which a base material of a woven fabric is impregnated with a thermosetting resin.
- One aspect of the present invention is to prepare a core circuit board having a predetermined circuit pattern, measure the thermal expansion coefficient of the core circuit board, and calculate the calculated thermal expansion coefficient of the core circuit board. And a step of preparing a laminated plate having an equivalent thermal expansion coefficient. This makes it easy to select a laminated plate that has a thermal expansion coefficient that approximates the thermal expansion coefficient of the core circuit board, which has different copper ratios (area ratio of copper foil remaining on the surface layer of the board) due to differences in circuit patterns. Therefore, it is possible to prepare a high-quality multilayer circuit board with stable connection resistance.
- the step of measuring the thermal expansion coefficient of the core circuit board is performed by using a thermomechanical measurement apparatus (TMA) in the circuit pattern of the core circuit board in a room temperature to press temperature range.
- TMA thermomechanical measurement apparatus
- the thermal expansion coefficient of the laminated plate is the same as the thermal expansion coefficient of the core circuit board.
- the thermal expansion coefficient of the laminated plate is a plus based on the thermal expansion coefficient of the core circuit board. 'It means that it is within the range of minus about 20%.
- the method for manufacturing a multilayer circuit board according to the present invention is such that the thermal expansion coefficient of the laminated plate used during pressing is equivalent to the thermal expansion coefficient of the core circuit board.
- the epoxy resin component in the pre-preder sheet melts, and the grip strength and the elongation of the laminated circuit board and core circuit board in the narrow region are the same, making the conductive paste A high-quality multilayer circuit board with stable connection resistance can be realized without deformation such as collapse.
- a method for manufacturing a multilayer circuit board, here a four-layer board, in the embodiment of the present invention will be described below with reference to FIGS.
- the components may be enlarged in the vertical direction in order to clarify the description of the components.
- LD is a process cross-sectional view illustrating a method for manufacturing a four-layer substrate. Also, Figures 2A-2F are
- FIG. 4 is a process cross-sectional view showing a method for manufacturing a core circuit board used for manufacturing a four-layer board of the present invention.
- the pre-preder sheet 1 As the pre-preder sheet 1, a B-stage base material, which is a composite material in which a non-woven aromatic polyamide fiber was impregnated with a thermosetting epoxy resin, was used. The size of the pre-predder sheet is 250mm square and the thickness (tl) is about 70m. As shown in FIG. 3, the pre-predder sheet 1 has epoxy resin layers 8 each having a thickness of about 10 m on the front and back of the aromatic polyamide fiber 7. That is, the total thickness of the epoxy resin layer 8 is about 20 m on both sides. In addition, a conductive paste 4 is filled in a through hole provided at a predetermined position of the pre-preder sheet 1. [0053] As shown in FIGS. 2A and 2B, through-holes 3 are formed by using a laser processing method or the like at a predetermined position of the pre-predder sheet 1 having the release film 2 bonded on both sides.
- the through-hole 3 is filled with the conductive paste 4.
- a pre-preder sheet 1 having through holes 3 is placed on a table of a printing machine (not shown), and the conductive paste 4 is marked from above the release film 2. Printed. At this time, the release film 2 on the upper surface plays a role of a printing mask and a role of preventing contamination of the surface of the pre-preder sheet 1.
- the double-sided force release film 2 of the pre-preder sheet 1 is peeled off.
- the metal foil 5b such as copper
- the pre-preda sheet 1 the metal foil 5a
- the laminated plate 6a are positioned and stacked in this order on the laminated plate 6b. And heated and pressurized.
- Fig. 2F shows a state where the pressure is released and the laminated plates 6a and 6b are removed.
- a circuit pattern is formed by selectively etching the metal foils 5a and 5b on both sides (not shown), and a double-sided circuit board that can be used as a core circuit board is obtained.
- a double-sided circuit board 10 (thickness of about 84 m) as a core circuit board having circuit patterns 11a and l ib manufactured according to FIGS. 2A to 2F, and FIGS.
- a pre-preda sheet la, lb (thickness: about 7 O / zm) in which the through-hole 3 manufactured in step 1 is filled with the conductive paste 4 is prepared. That is, the thickness of the double-sided circuit board 10 is not less than 1 times the thickness of the pre-preder sheet la or 1b.
- the laminated member 100 is produced by stacking the pre-preder sheets la and lb on both sides of the double-sided circuit board 10.
- a metal foil 5b such as copper, pre-predacy on the laminated plate 6b.
- Mb, double-sided circuit board 10, pre-prepared sheet la, metal foil 5a, and laminated plate 6a are positioned and stacked in this order to form laminate 110.
- the laminate 110 may not include the metal foil 5a or 5b.
- the coefficient of linear expansion of the double-sided circuit board 10 is 10 ⁇ 10 _6 to 12 ⁇ 10 _6 Z ° C. Therefore, stainless steel with a linear expansion coefficient of 10 X 10 _6 / ° C was selected and used as the laminated plates 6a and 6b.
- the size of the laminated plates 6a and 6b is 300 X 300mm and the thickness is about 1 mm.
- a linear expansion coefficient is used as the thermal expansion coefficient.
- the body expansion coefficient can be used.
- the laminate may be put into the hot press while being placed on the transport plate (not shown).
- both the transport plate and the laminated plate are plates having a thermal expansion coefficient equivalent to the thermal expansion coefficient of the core circuit board.
- only the thermal expansion coefficient of the laminated plate may be made equal to that of the core circuit board.
- Step 1 Step of preparing a double-sided circuit board 10 having circuit patterns 11a and l ib.
- Step 2 A step of measuring the thermal expansion coefficient of the double-sided circuit board 10 in the range from room temperature to pressing temperature (for example, 20 ° C force is also 200 ° C) using a thermomechanical measuring apparatus (TMA) or the like.
- TMA thermomechanical measuring apparatus
- the part where the metal foil 5a, 5b constituting the circuit pattern of the double-sided circuit board 10 exists fin forming part: remaining copper ratio 100%
- the part where the metal foil 5a, 5b does not exist Part: residual copper ratio 0%
- Step 3 Calculate the thermal expansion coefficient of the intermediate value between the metal foil 5a, 5b forming part and the non-foil forming part of the double-sided circuit board 10 to obtain the average thermal expansion coefficient of the double-sided circuit board 10, and The step of selecting laminated plates having the same coefficient of thermal expansion.
- steps 1 to steps are used.
- the laminated plate can be selected.
- a laminated plate having a thermal expansion coefficient equivalent to the average value of the thermal expansion coefficients of the core circuit board to be used may be used.
- the coefficient of thermal expansion of each core circuit board may be measured once for each material. Even if the product pattern is changed, the laminated plate selected in the above selection step can be used.
- the thicker the circuit board for the core is, the thicker the four-layer board and the six-layer board, the stronger the rigidity, and the larger the difference in thermal expansion coefficient from the stacked plate. Therefore, it was confirmed that the present invention is particularly effective in such a case.
- a pre-preda sheet having a thickness of about 70 ⁇ m which is a composite material in which a non-woven aromatic polyamide fiber is impregnated with a thermosetting epoxy resin, is used. It is also possible to use a pre-preder sheet with a thickness of 60 m or less, and it is possible to realize a thinner multilayer circuit board.
- the present invention makes the thermal expansion coefficient of the laminated plate used at the time of pressing equal to the thermal expansion coefficient of the core circuit board.
- the epoxy resin component melts and the elongation of the laminated circuit board and the core circuit board is the same in the area where the grip force is small, the conductive paste will not be deformed and the connection resistance will be stable and high.
- a quality multilayer circuit board can be realized.
- a non-woven aromatic polyamide fiber is impregnated with a thermosetting epoxy resin
- a pre-predder sheet that is also a composite material and a core circuit board are used.
- a woven pre-preder sheet and a core circuit board may be used.
- a prepreg sheet made of a composite material in which an aromatic polyamide fiber is impregnated with a thermosetting epoxy resin and a prepreg sheet in which a non-woven fabric or a woven fabric mainly made of an inorganic material is impregnated with a thermosetting epoxy resin.
- a glass epoxy sheet and a core circuit board may be combined.
- the thermal expansion coefficient of the laminated plate can be determined by the thermal expansion coefficient of the core circuit board, even if it is a combination of an organic base film or a pre-predder sheet with a thermosetting epoxy resin layer on both sides of the base sheet. By making it equal to the expansion coefficient, the same effect as in the present embodiment can be obtained.
- the woven fabric is more likely to form a resin layer on the surface layer of the pre-preda sheet as compared with the non-woven fabric, the effect of the present invention can be remarkably exhibited. In other words, it is possible to eliminate the deformation of the conductive paste, provide a high-quality multilayer circuit board with stable connection resistance, and achieve high multi-layering.
- the core circuit board and the pre-predder sheet are made of the same material.
- different materials are used. The same effect can be obtained.
- the thermal expansion coefficient of the laminated plate is used for the core. The same effect can be obtained by making it equivalent to a circuit board.
- the method for manufacturing a multilayer circuit board according to the present invention eliminates the collapse (that is, deformation) of the conductive base during hot pressing and can stabilize the connection quality. It can be used for general multilayer circuit boards with inner via hole connection with conductive paste.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/595,157 US8007629B2 (en) | 2004-10-08 | 2005-09-30 | Method of manufacturing multi-layer circuit board |
EP05788243A EP1753279B1 (en) | 2004-10-08 | 2005-09-30 | Multilayer circuit board manufacturing method |
JP2006522821A JP4297163B2 (ja) | 2004-10-08 | 2005-09-30 | 多層回路基板の製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-295923 | 2004-10-08 | ||
JP2004295923 | 2004-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006040942A1 true WO2006040942A1 (ja) | 2006-04-20 |
Family
ID=36148239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018109 WO2006040942A1 (ja) | 2004-10-08 | 2005-09-30 | 多層回路基板の製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8007629B2 (ja) |
EP (1) | EP1753279B1 (ja) |
JP (1) | JP4297163B2 (ja) |
KR (1) | KR100755795B1 (ja) |
CN (1) | CN100551212C (ja) |
TW (1) | TW200616523A (ja) |
WO (1) | WO2006040942A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014128974A (ja) * | 2012-12-28 | 2014-07-10 | Samsung Electro-Mechanics Co Ltd | 基板加圧用二重プレートおよび基板加圧方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2007355605B2 (en) * | 2007-06-25 | 2012-04-26 | Second Sight Medical Products, Inc. | Method for providing hermetic electrical feedthrough |
KR100885900B1 (ko) * | 2007-08-24 | 2009-02-26 | 삼성전기주식회사 | 다층 인쇄회로기판 및 그 제조방법 |
KR20090077425A (ko) | 2008-01-11 | 2009-07-15 | 엘지이노텍 주식회사 | 질화물계 발광 소자 및 그 제조방법 |
KR101109230B1 (ko) * | 2009-10-20 | 2012-01-30 | 삼성전기주식회사 | 인쇄회로기판 및 그 제조방법 |
JP2013008880A (ja) * | 2011-06-24 | 2013-01-10 | Fujitsu Ltd | 積層回路基板の製造方法及び積層回路基板 |
CN103037640B (zh) * | 2012-06-05 | 2015-07-22 | 北京凯迪思电路板有限公司 | 一种使用普通设备和物料制作hdi积层板的工艺 |
CN105357864A (zh) * | 2015-11-30 | 2016-02-24 | 珠海方正科技多层电路板有限公司 | 多层线路板及其制作方法 |
CN107529292A (zh) * | 2017-08-25 | 2017-12-29 | 深南电路股份有限公司 | 一种任意层互联pcb的制作方法 |
US20210396987A1 (en) * | 2018-10-30 | 2021-12-23 | Magic Leap, Inc. | Polymer eyepiece assemblies for augmented and mixed reality systems |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06169172A (ja) * | 1992-12-01 | 1994-06-14 | Fujitsu Ltd | 多層プリント基板の製造方法 |
JPH11251703A (ja) * | 1998-02-27 | 1999-09-17 | Matsushita Electric Ind Co Ltd | 回路基板、両面回路基板、多層回路基板及び回路基板の製造方法 |
JP2001326458A (ja) * | 2000-05-16 | 2001-11-22 | Matsushita Electric Ind Co Ltd | プリント配線基板およびその製造方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081600A (en) * | 1976-07-28 | 1978-03-28 | Buss Systems, Inc. | High density thick foil circuitry laminated package |
US4180608A (en) * | 1977-01-07 | 1979-12-25 | Del Joseph A | Process for making multi-layer printed circuit boards, and the article resulting therefrom |
JPS5711026A (en) * | 1980-06-24 | 1982-01-20 | Mitsubishi Gas Chem Co Inc | Manufacture of laminate |
JPS60134496A (ja) * | 1983-12-23 | 1985-07-17 | 株式会社日立製作所 | 多層印刷配線板の製造方法 |
CN87200404U (zh) | 1987-01-14 | 1988-02-24 | 东北工学院 | 霍尔膨胀仪 |
US5160567A (en) * | 1991-04-15 | 1992-11-03 | Allied-Signal Inc. | System and method for manufacturing copper clad glass epoxy laminates |
JP2601128B2 (ja) | 1992-05-06 | 1997-04-16 | 松下電器産業株式会社 | 回路形成用基板の製造方法および回路形成用基板 |
US5350621A (en) * | 1992-11-30 | 1994-09-27 | Allied-Signal Inc. | System of electronic laminates with improved registration properties |
US5986217A (en) | 1997-10-22 | 1999-11-16 | Hewlett-Packard Company | Printed circuit board for mitigating thermally-induced mechanical damage of solder joints connecting electronic components |
US6492030B1 (en) * | 1999-02-03 | 2002-12-10 | Tomoegawa Paper Co., Ltd. | Thermoplastic resin composition having low permittivity, prepreg, laminated plate and laminated material for circuit using the same |
US6245696B1 (en) | 1999-06-25 | 2001-06-12 | Honeywell International Inc. | Lasable bond-ply materials for high density printed wiring boards |
US6560844B1 (en) | 2000-02-24 | 2003-05-13 | Honeywell International Inc. | Alignment plate with matched thermal coefficient of expansion |
GB0104611D0 (en) | 2001-02-23 | 2001-04-11 | Koninkl Philips Electronics Nv | Printing plates |
JP3855997B2 (ja) | 2001-10-12 | 2006-12-13 | 松下電器産業株式会社 | 回路形成基板の製造方法 |
US20050230072A1 (en) * | 2004-04-16 | 2005-10-20 | Levit Mikhail R | Aramid paper blend |
-
2005
- 2005-09-30 EP EP05788243A patent/EP1753279B1/en not_active Expired - Fee Related
- 2005-09-30 US US10/595,157 patent/US8007629B2/en not_active Expired - Fee Related
- 2005-09-30 TW TW094134234A patent/TW200616523A/zh not_active IP Right Cessation
- 2005-09-30 JP JP2006522821A patent/JP4297163B2/ja not_active Expired - Fee Related
- 2005-09-30 CN CNB200580001662XA patent/CN100551212C/zh not_active Expired - Fee Related
- 2005-09-30 KR KR1020067008277A patent/KR100755795B1/ko not_active IP Right Cessation
- 2005-09-30 WO PCT/JP2005/018109 patent/WO2006040942A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06169172A (ja) * | 1992-12-01 | 1994-06-14 | Fujitsu Ltd | 多層プリント基板の製造方法 |
JPH11251703A (ja) * | 1998-02-27 | 1999-09-17 | Matsushita Electric Ind Co Ltd | 回路基板、両面回路基板、多層回路基板及び回路基板の製造方法 |
JP2001326458A (ja) * | 2000-05-16 | 2001-11-22 | Matsushita Electric Ind Co Ltd | プリント配線基板およびその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1753279A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014128974A (ja) * | 2012-12-28 | 2014-07-10 | Samsung Electro-Mechanics Co Ltd | 基板加圧用二重プレートおよび基板加圧方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100551212C (zh) | 2009-10-14 |
CN1906985A (zh) | 2007-01-31 |
KR100755795B1 (ko) | 2007-09-05 |
TWI366426B (ja) | 2012-06-11 |
JP4297163B2 (ja) | 2009-07-15 |
KR20060061402A (ko) | 2006-06-07 |
JPWO2006040942A1 (ja) | 2008-05-15 |
EP1753279A1 (en) | 2007-02-14 |
EP1753279B1 (en) | 2013-02-20 |
TW200616523A (en) | 2006-05-16 |
US20080251193A1 (en) | 2008-10-16 |
EP1753279A4 (en) | 2010-12-22 |
US8007629B2 (en) | 2011-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4297163B2 (ja) | 多層回路基板の製造方法 | |
KR101116079B1 (ko) | 다층 프린트 배선판의 제조방법 및 다층 프린트 배선판 | |
US20020016018A1 (en) | Method of manufacturing multi-layer printed wiring board | |
JP3903701B2 (ja) | 多層回路基板とその製造方法 | |
JP2002064270A (ja) | 回路基板とその製造方法 | |
US7281325B2 (en) | Method of manufacturing circuit board | |
JP2006313932A (ja) | 多層回路基板とその製造方法 | |
WO2004064465A1 (ja) | 回路基板およびその製造方法 | |
JPWO2004054337A1 (ja) | プリント配線基板の製造方法 | |
KR20100030769A (ko) | 다층 인쇄회로기판 및 그 제조방법 | |
JP2011187854A (ja) | 多層プリント配線板および多層プリント配線板の製造方法 | |
JP3956667B2 (ja) | 回路基板およびその製造方法 | |
JP2009246146A (ja) | 回路基板の製造方法 | |
JP2006176677A (ja) | 複合体、これを用いたプリプレグ、金属箔張積層板、プリント配線基板及びプリント配線基板の製造方法 | |
JP3738536B2 (ja) | プリント配線基板の製造方法 | |
JP3982417B2 (ja) | 回路基板の製造方法 | |
JP3168934B2 (ja) | 多層プリント基板の製造方法 | |
JP4622939B2 (ja) | 回路基板の製造方法 | |
JP3982418B2 (ja) | 回路基板の製造方法 | |
JPH05167250A (ja) | 多層プリント配線板の製造方法 | |
JP4196125B2 (ja) | 回路基板の製造方法 | |
JP4196126B2 (ja) | 回路基板の製造方法 | |
JP3928560B2 (ja) | 回路基板 | |
JP2008235640A (ja) | 回路基板と回路基板の製造方法 | |
JP5353027B2 (ja) | 回路基板の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200580001662.X Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006522821 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10595157 Country of ref document: US |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005788243 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067008277 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067008277 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 2005788243 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |