WO2013103265A1 - 양면 인쇄회로기판의 제조방법 - Google Patents
양면 인쇄회로기판의 제조방법 Download PDFInfo
- Publication number
- WO2013103265A1 WO2013103265A1 PCT/KR2013/000064 KR2013000064W WO2013103265A1 WO 2013103265 A1 WO2013103265 A1 WO 2013103265A1 KR 2013000064 W KR2013000064 W KR 2013000064W WO 2013103265 A1 WO2013103265 A1 WO 2013103265A1
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- WIPO (PCT)
- Prior art keywords
- hole
- conductive
- circuit pattern
- conductive material
- circuit board
- Prior art date
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Classifications
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- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0242—Shape of an individual particle
- H05K2201/026—Nanotubes or nanowires
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- 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
- H05K2201/032—Materials
- H05K2201/0323—Carbon
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- 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
- H05K2203/14—Related to the order of processing steps
- H05K2203/1453—Applying the circuit pattern before another process, e.g. before filling of vias with conductive paste, before making printed resistors
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- 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
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
- H05K3/245—Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques
- H05K3/246—Reinforcing conductive paste, ink or powder patterns by other methods, e.g. by plating
Definitions
- the present invention relates to a method for manufacturing a double-sided printed circuit board, and in particular, to easily form a circuit pattern on the upper and lower surfaces of the insulating layer, and to easily form the energization of the circuit pattern formed on the upper and lower surfaces of the insulating layer.
- a method for manufacturing a double-sided printed circuit board is a method for manufacturing a double-sided printed circuit board.
- FIG. 1 schematically illustrates a process of forming a circuit pattern in a conventional printed circuit board and energizing circuit patterns formed on upper and lower sides of an insulating layer.
- a conventional printed circuit board is prepared with a raw material (double-sided copper foil film) on which conductive layers are mounted on both surfaces of an insulating layer. It shows that a polyimide film is used as the insulating layer and a copper film is used as the conductive layer.
- a front etching process is performed.
- the thickness of copper foil is fixed, and when the whole-hole plating is performed, the thickness is about 10 or more. Therefore, when a fine pattern is to be formed, it is too thick, so it is difficult to realize a precise circuit through etching. To proceed the process to lower the thickness.
- the through-hole is processed through the conductive layer and the insulating layer. Subsequently, the conductive layer and the insulating layer in which the through-holes are formed are exposed to the conductive aqueous solution to form a conductive film to perform a pre-plating process (Shadow process).
- an electroless copper plating film is formed on the conductive layer and the insulating layer on which the conductive film is formed to perform the entire electroplating process, and the inner wall of the through hole is coated with the conductive copper of the thin film using Pd (palladium) catalysis.
- the electrolytic reaction of copper is used to completely coat the inner wall of the trough hole with conductive copper.
- the photosensitive film is laminated, and a process of exposure, development, corrosion, and peeling is performed to form a circuit having a desired pattern to form a final circuit.
- An object of the present invention is to solve the problems described above, and to easily form a circuit pattern on the upper and lower surfaces of the insulating layer, and to easily form a circuit pattern formed on the upper and lower surfaces of the insulating layer. It is to provide a method of manufacturing a double-sided printed circuit board to be able to.
- Method for manufacturing a double-sided printed circuit board forming a conductive first circuit pattern constituting a circuit on the upper surface of the insulating layer; Forming a conductive second circuit pattern constituting a circuit on a lower surface of the insulating layer; Forming a through hole penetrating the insulating layer in a vertical direction; And forming a conductive material on an inner circumferential surface of the through hole so that the first circuit pattern and the second circuit pattern are electrically connected by the through hole.
- the through hole is formed, and after the conductive material is formed on the inner circumferential surface of the through hole, the protective film is preferably laminated.
- the insulating layer is exposed to the outside at the portion where the through hole is formed, and when the second circuit pattern is formed, the insulating layer is exposed to the outside at the portion where the through hole is formed. It is desirable to be.
- first and second circuit patterns may be patterned and printed, and the inner circumferential surface of the through hole may be printed with the conductive material.
- the first and second protective films may be formed after laminating non-conductive first and second protective films on the upper surfaces of the first and second circuit patterns, respectively, and after the conductive material is formed on the inner circumferential surface of the through holes. Preference is given to dilaminating.
- the non-conductive protective film on the second circuit pattern, and to form the conductive material on the inner circumferential surface of the through hole, and then to laminate the protective film.
- the non-conductive first protective film is laminated on the second circuit pattern, the through hole is formed, and after the second protective film is laminated on the first circuit pattern, the conductive material is formed on the inner circumferential surface of the through hole, It is preferable to delaminate the protective film.
- the circuit pattern is easily formed on the upper and lower surfaces of the insulating layer, and the circuit pattern is formed on the upper and lower surfaces of the insulating layer. Provides the effect of easy implementation.
- the simplified process reduces the manufacturing time, thereby improving productivity, and lowering the defective rate, thereby providing an effect of improving product quality.
- a double-sided printed circuit board can be easily manufactured in a simplified process without complicated processes such as exposure, development, and corrosion, and environmental pollutants.
- FIG. 1 is a view schematically showing a circuit pattern forming method and a through hole energizing process of a conventional printed circuit board
- FIG. 2 is a flowchart illustrating a method of manufacturing a double-sided printed circuit board according to an embodiment of the present invention
- FIG. 3 is a flowchart illustrating a method of manufacturing a double-sided printed circuit board according to another embodiment of the present invention.
- 4 to 10 are flowcharts of a method of manufacturing a double-sided printed circuit board according to another embodiment of the present invention.
- the method for manufacturing a double-sided printed circuit board includes: a) preparing a polyimide film 1 as a substrate; b) Ag conductive paste, which is a conductive ink, is printed on both surfaces of the polyimide film 1, that is, the upper surface 1a and the lower surface 1b, respectively, to form the first and second circuit patterns 2a and 2b.
- the substrate 1 may be a PI film, a PET film, or a PEN film, but is not limited thereto.
- the circuit patterns 2a and 2b may be formed by printing a conductive paste which is a conductive ink. At this time, it may be printed by gravure printing, inkjet printing, offset printing, silkscreen printing, rotary screen printing, flexo printing, or imprinting.
- the heat treatment is a temperature condition of 80 ⁇ 400 It can be done with
- an organic silver complex compound may be included.
- the organic silver complex compound may be obtained by reacting one or more silver compounds of Formula 1 with one or more ammonium carbamate or ammonium carbonate compounds of Formula 2, Formula 3, or Formula 4.
- N is an integer of 1 to 4
- X is oxygen, sulfur, halogen, cyano, cyanate, carbonate, nitrate, nitrite, sulfate, phosphate, thiocyanate, chlorate, perchlorate, tetrafluoro Substituents selected from borate, acetylacetonate, carboxylate and derivatives thereof)
- R1, R2, R3, R4, R5 and R6 may be the same or different from each other, hydrogen, an aliphatic or alicyclic alkyl group having 1 to 30 carbon atoms or an aryl or aralkyl (ARALKYL) group, an alkyl group substituted with a functional group and A substituent selected from an aryl group, a heterocyclic compound group, a high molecular compound group and derivatives thereof.
- ARALKYL aryl or aralkyl
- the conductive paste may further comprise a conductor, a metal precursor or one or more of these mixtures.
- the conductor may be Ag, Au, Cu, Ni, Co, Pd, Pt, Ti, V, Mn, Fe, Cr, Zr, Nb, Mo, W, Ru, Cd, Ta, Re, Os, Ir, Al, Select from Ga, Ge, In, Sn, Sb, Pb, Bi, Sm, Eu, Ac, Th and at least one metal or alloy or alloy oxide thereof, conductive carbon black, graphite, carbon nanotubes and conductive polymers It may include any one or more components.
- the metal precursor may be selected from one or more metal compound groups represented by the following Chemical Formula 5.
- n is an integer of 10 or less
- X is oxygen, sulfur, halogen, cyano, cyanate, carbonate, nitrate, nitrite, sulfate, phosphate, thio
- Substituents selected from cyanate, chlorate, perchlorate, tetrafluoroborate, acetylacetonate, merceto, amide, alkoxide, carboxylate and derivatives thereof.
- the metal precursor is gold acetate, palladium oxalate, silver 2-ethyl hexanoate, copper 2-ethyl hexanoate, iron stearate, nickel formate, zinc citrate, bismuth acetate, silver nitrate, copper cyanide, cobalt carbonate, platinum chloride, chloride Geum acid, tetrabutoxy titanium, dimethoxyzirconium dichloride, aluminum isopropoxide, tin tetrafluoro borate, vanadium oxide, indium-tin oxide, ruthenium oxide, tantalum methoxide, dodecyl mercetonated gold, indium acetyl acetonate It may include any one or more components selected from the group.
- the amount of the conductor or metal precursor or a mixture thereof may be used in an amount of 1 to 90 wt% based on the paste composition.
- the conductor or metal precursor may be selected from the group consisting of particles, powders, flakes, colloids, hybrids, pastes, sol, solutions, and mixtures thereof.
- the shape of the conductor and the metal precursor may be any one or more selected from the group of spherical, linear, plate-shaped, or mixed forms thereof.
- step b) and step e) the conductive paste and the printing method may be applied in the same or different ways.
- the protective film of step c) may be a PET film, a PEN film, a fabric mesh (Fabric mesh), a metal mesh (Metal mesh), paper (Paper) or a rubber material film.
- the protective film may be laminated by thermally compressing two protective films, and for example, the protective film may be formed by pressing a PET film onto an object using a film laminator.
- the hole is processed to a design diameter for conducting the first circuit pattern 2a formed on the upper surface 1a of the substrate 1 and the second circuit pattern 2b formed on the lower surface 1b. It is a process to do it.
- the through hole 5 of step d) may be formed using a CNC drill bit or using a laser source.
- the diameter of the through hole 5 may be at least 0.08mm ⁇ 1mm or up to 1mm or more, for example, may be formed with a diameter of 0.2mm ⁇ 0.3mm.
- the first circuit pattern 2a formed on the upper surface 1a of the substrate 1 and the second circuit pattern 2b formed on the lower surface 1b are electrically connected to each other.
- a conductive line 5 such as a bridge to connect is formed by printing an Ag conductive paste on the inner wall surface of the through hole 4.
- Ag-conductive paste on the upper surface 1a of the polyimide film 1 was printed by using a silkscreen printing method with a thickness of about 3 to 7 with a minimum line width of 75 and a line spacing of 75 and a high temperature heat treatment at about 150 to 200 A 1 degree pattern 2a is used as a pattern.
- the positional precision of about 10 is maintained at the same thickness and pattern interval on the lower surface 1b opposite to the one-degree printing surface to form a two-degree pattern 2b as a circuit pattern at the same temperature condition as one degree after printing.
- a protective film 3 composed of a thickness of 12, and a PET film 75 thickness on the side on which the 1 or 2 degree pattern (2a, 2b) is printed, it is pressed at a rate of 5M / min at room temperature conditions.
- a cylindrical hole 4 was formed at a speed of about 80,000 to 150,000 rpm using a CNC drill bit of 0.2 to 0.3 on the opposite surface of the protective film 3.
- the inner wall of the through hole 4 to a thickness of about 1 to 3 using an Ag conductive paste having a lower viscosity than that of the Ag conductive paste used for the 1 degree and 2 degree patterns 2a and 2b on the opposite side of the protective film 3. Is printed to form a conductive line (5).
- the protective film 3 can be removed to manufacture a double-sided printed circuit board.
- the scope of the present invention is not limited to the numerical ranges and conditions herein.
- FIG. 3 is a flowchart illustrating a method of manufacturing a double-sided printed circuit board according to another embodiment of the present invention.
- the method for manufacturing a double-sided printed circuit board according to FIG. 3 may include forming first and second circuit patterns 20 and 30, forming a through hole 40, and a conductive material on an inner circumferential surface of the through hole 40. 50).
- the printed circuit board according to the present invention first forms a circuit of a desired pattern.
- the first circuit pattern 20 is a circuit patterned using a conductive material to form a circuit on the upper surface of the insulating layer 10.
- the first circuit pattern 20 is printed using a known paste such as silver (Ag), copper (Cu), nickel (Ni), aluminum (Al), and the like.
- the first circuit pattern 20 is not limited to being formed by a printing method.
- the insulating layer 10 a known one such as a polyimide film is used.
- the second circuit pattern 30 is a circuit patterned using a conductive material to form a circuit on the lower surface of the insulating layer 10.
- the second circuit pattern 30 is similar to the first circuit pattern 20 by using a known paste such as silver (Ag), copper (Cu), nickel (Ni), aluminum (Al), or the like. It is printed.
- the second circuit pattern 30 is not limited to being formed by the printing method.
- the step of forming the through hole 40 is performed.
- the through hole 40 penetrates the insulating layer 10 in the vertical direction. 2, when the first circuit pattern 20 is formed, the insulating layer 10 is exposed to the outside at a portion where the through hole 40 is formed. In addition, when the second circuit pattern 30 is formed, the insulating layer 10 is exposed to the outside at the portion where the through hole 40 is formed.
- the first circuit pattern 20 provided above the portion where the through hole 40 is formed and the second circuit pattern 30 provided below are patterned in consideration of the through hole 40 to be subsequently formed. Therefore, the through hole 40 is formed by processing the hole substantially penetrating the insulating layer 10.
- the step of forming the conductive material 50 on the inner circumferential surface of the barrel hole 40 is performed.
- the inner circumferential surface of the barrel hole 40 is printed using a known paste such as silver (Ag), copper (Cu), nickel (Ni), aluminum (Al), and the like.
- a printed circuit board through which the first and second circuit patterns 20 and 30 are energized by the through hole 40 is formed.
- first and second circuit patterns 20 and 30 are first formed, and then, through holes 40 are formed, and the conductive material 50 is formed in the through holes 40. ), And the first and second circuit patterns 20 and 30 are energized, so that the conventional printed circuit board is processed by a simplified method as compared with a complicated process to implement the circuit pattern energized by the through hole. The effect of implementing a printed circuit board will be provided.
- a process of laminating the protective film 60 may be performed before the conductive material 50 is formed on the inner circumferential surface of the barrel hole 40.
- the protective film 60 is a polyethylene terephthalate (PET) film is used.
- PET polyethylene terephthalate
- the protective film 60 is provided to prevent the conductive material 50 from penetrating into the second circuit pattern 30 when the conductive material 50 is subsequently printed on the inner circumferential surface of the through hole 40.
- the conductive material 50 when the conductive material 50 is excessive when printing the conductive material 50 on the inner circumferential surface of the through hole 40 without the protective film 60, the conductive material 50 penetrates into the second circuit pattern 30. This may cause a defect of the printed circuit board.
- the protective film 60 prevents the conductive material 50 from spreading to the second circuit pattern 30.
- a process of forming the through hole 40 and a printing process in the through hole 40 is performed, and then the protective film 60 is removed.
- the delaminate process is performed.
- first and second circuit patterns 20 and 30 are finally formed on the upper and lower surfaces of the insulating layer 10, and the first and second circuit patterns 20 and 30 are formed on the inner circumferential surface of the through hole 40. It is energized by the conductive material 50 formed in the.
- a heat treatment process is performed after a printing process is performed on the barrel hole 40.
- the conductive material 50 is printed in the barrel hole 40, the conductive material is cured and shrinks as the conductive material is cured.
- a conductive plating film 70 may be formed on the conductive material 50 formed on the inner circumferential surface of the first and second circuit patterns 20 and 30 and the through hole 40.
- the plating film 70 may be a copper film formed by electroless or electrolytic copper plating.
- the plating film 70 may be plated by appropriately adjusting the thickness in consideration of the amount of current applied and consumed.
- the first and second circuit patterns 20 and 30 may be formed only to maintain the properties of the seed layer, and when the amount of applied and consumed current is large, It is preferable to form and form the plating film 70 in a suitable thickness.
- the first and second circuit patterns 20 and 30 are quickly formed and the through holes connecting the first and second circuit patterns 20 and 30 are formed.
- 40 and a conductive material 50 is printed on the inner circumferential surface of the through hole 40 to energize the first and second circuit patterns 20 and 30, thereby providing a first and second circuits of the printed circuit board.
- the circuit patterns 20 and 30 can be energized.
- 5 to 9 illustrate a method of forming a precision printed circuit board for forming a circuit pattern and a conductive line in a through hole according to another embodiment of the present invention.
- first and second circuit patterns 20 and 30 are formed on upper and lower surfaces of the insulating layer 10, and the first and second protective films are formed on the first and second circuit patterns 20 and 30. After laminating 61 and 62, the hole 40 is processed.
- a process of printing the conductive material 50 in the through hole 40 is performed, and a process of delaminating the first and second protective films 61 and 62 is performed.
- the heat treatment process is performed after the conductive material 50 is printed in the through hole 40, and the conductive material 50 printed in the through hole 40 is cured and contracted during the heat treatment.
- FIG. 6 illustrates that a conductive plating film 70 may be further added to the conductive material 50 formed in the first and second circuit patterns 20 and 30 and the through hole 40 in addition to the embodiment of FIG. 5. It is shown. The action and effect of the plated film 70 is described above, so a detailed description thereof will be omitted.
- first and second circuit patterns 20 and 30 are formed on the top and bottom surfaces of the insulating layer 10, and then the through holes 40 are formed. Subsequently, the non-conductive protective film 60 is laminated on the second circuit pattern 30, and after the conductive material 50 is printed in the through hole 40, the lamination process of the protective film 60 is performed. .
- a heat treatment process is performed, and the conductive material 50 shrinks while curing the conductive material 50.
- FIG. 8 illustrates that in addition to the embodiment of FIG. 6, the conductive plating film 70 may be further added to the conductive material 50 formed in the first and second circuit patterns 20 and 30 and the through hole 40. It is shown. The action and effect of the plated film 70 is described above, so a detailed description thereof will be omitted.
- first and second circuit patterns 20 and 30 are formed on upper and lower surfaces of the insulating layer 10, and a non-conductive first protective film 61 is laminated on the second circuit pattern 30. do. Subsequently, the through hole 40 is formed, and the second protective film 62 is laminated on the first circuit pattern 20 by inverting the insulating layer 10 on which the through hole 40 is formed.
- the process of delaminating the first and second protective films 61 and 62 is performed.
- a heat treatment process is performed, and the conductive material 50 shrinks while curing the conductive material 50.
- FIG. 10 illustrates that in addition to the embodiment of FIG. 8, the conductive plating film 70 may be further added to the conductive material 50 formed in the first and second circuit patterns 20 and 30 and the through hole 40. It is shown. The action and effect of the plated film 70 is described above, so a detailed description thereof will be omitted.
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Abstract
Description
Claims (10)
- 절연층(10)의 상면에 회로를 구성하는 도전성 제1 회로패턴(20)을 형성하는 단계;상기 절연층(10)의 하면에 회로를 구성하는 도전성 제2 회로패턴(30)을 형성하는 단계;상기 절연층(10)을 상하방향으로 관통하는 통홀(40)을 형성하는 단계;상기 제1 회로패턴(20)과 상기 제2 회로패턴(30)이 상기 통홀(40)에 의해 도통되도록, 상기 통홀(40)의 내주면에 도전성 물질(50)을 형성하는 단계를 포함하는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제2 회로패턴(30) 위에 비전도성 보호필름(60)이 라미네이트된 후 상기 통홀(40)이 형성되며, 상기 통홀(40)의 내주면에 상기 도전성 물질(50)이 형성된 후에 상기 보호필름(60)은 디라미네이트되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제1 회로패턴(20)이 형성될 때 상기 통홀(40)이 형성되는 부위에서 상기 절연층(10)은 외부로 노출되며, 상기 제2 회로패턴(30)이 형성될 때 상기 통홀(40)이 형성되는 부위에서 상기 절연층(10)은 외부로 노출되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제1,2 회로패턴(20,30)은 패턴화되어 프린팅되고,상기 통홀(40)의 내주면은 상기 도전성 물질(50)이 프린팅되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제1,2 회로패턴(20,30) 및 상기 통홀(40)의 내주면에 형성된 도전성 물질(50)에 도금막(70)을 형성하는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 통홀(40)의 내주면에 도전성 물질(50)을 형성한 후에 열처리가 수행되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제1,2 회로패턴(20,30)의 상면에 각각 비전도성 제1,2 보호필름(61,62)을 라미네이트 한 후에 상기 통홀(40)을 형성하고, 상기 통홀(40)의 내주면에 상기 도전성 물질(50)이 형성된 후에 상기 제1,2 보호필름(61,62)은 디라미네이트되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제7항에 있어서,상기 통홀(40)의 내주면에 도전성 물질(50)을 형성한 후에 열처리가 수행되는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 통홀(40)을 형성한 후 상기 제2 회로패턴(30) 위에 비전도성 보호필름(60)을 라미네이트하고, 상기 통홀(40)의 내주면에 상기 도전성 물질(50)을 형성한 후에 상기 보호필름(60)을 디라미네이트하는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
- 제1항에 있어서,상기 제2 회로패턴(30) 위에 비전도성 제1 보호필름을 라미네이트하고, 상기 통홀(40)을 형성하며, 상기 제1 회로패턴(20) 위에 제2 보호필름을 라미네이트 한 후에 상기 통홀(40)의 내주면에 상기 도전성 물질(50)을 형성하고, 상기 보호필름(60)을 디라미네이트하는 것을 특징으로 하는 양면 인쇄회로기판의 제조방법.
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US14/370,644 US10080299B2 (en) | 2012-01-04 | 2013-01-04 | Manufacturing method of double sided printed circuit board |
JP2014551192A JP6069355B2 (ja) | 2012-01-04 | 2013-01-04 | 両面プリント回路基板の製造方法 |
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KR20130001252A KR101505049B1 (ko) | 2012-01-04 | 2013-01-04 | 양면 인쇄회로기판의 제조방법 |
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