WO2008044698A1 - Wiring member and process for producing the same - Google Patents
Wiring member and process for producing the same Download PDFInfo
- Publication number
- WO2008044698A1 WO2008044698A1 PCT/JP2007/069736 JP2007069736W WO2008044698A1 WO 2008044698 A1 WO2008044698 A1 WO 2008044698A1 JP 2007069736 W JP2007069736 W JP 2007069736W WO 2008044698 A1 WO2008044698 A1 WO 2008044698A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- noise suppression
- copper foil
- wiring member
- insulating adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
- H05K1/023—Reduction of cross-talk, noise or electromagnetic interference using auxiliary mounted passive components or auxiliary substances
- H05K1/0234—Resistors or by disposing resistive or lossy substances in or near power planes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistors, capacitors or inductors
- H05K1/167—Printed circuits incorporating printed electric components, e.g. printed resistors, capacitors or inductors incorporating printed resistors
-
- 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
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
-
- 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
- H05K2201/0206—Materials
- H05K2201/0215—Metallic fillers
-
- 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
- H05K2201/0326—Inorganic, non-metallic conductor, e.g. indium-tin oxide [ITO]
-
- 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
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/0929—Conductive planes
- H05K2201/09309—Core having two or more power planes; Capacitive laminate of two power planes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
-
- 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 wiring member for constituting a printed wiring board and a manufacturing method thereof.
- noises include noise due to impedance mismatch of conductors in printed wiring boards on which MPUs, electronic components, etc. are mounted, noise due to crosstalk between conductors, and power supply and ground layers due to simultaneous switching of semiconductor elements such as MPU. There is noise induced by resonance between layers.
- a printed wiring board in which a metal film made of a metal having higher resistivity than a copper foil is formed on both surfaces of a power supply layer and a ground layer made of copper foil Patent Document 1.
- Patent Document 2 A printed wiring board in which films having anisotropic conductivity in the direction perpendicular to the printed wiring board surface containing a conductive material are formed on both surfaces of a power supply layer and a ground layer made of copper foil (Patent Document 2) ).
- a printed wiring board in which the thickness of the resistive conductor film is 1/10 or less of the electronic component current supply pattern (Patent Document 3).
- the printed wiring board of (1) it is possible to attenuate the high-frequency eddy current flowing on the surface of the copper foil, and even if the semiconductor element causes simultaneous switching, the power supply potential can be stabilized and unnecessary. It is said that noise emission can be suppressed.
- the high-frequency current (skin current) flowing through the conductor surface (skin) with a metal film of several meters, which is about the same as the depth of the skin the force depending on the frequency of the target high-frequency current, A material with a certain high resistivity is required. However, such a material is not available, and the printed wiring board (1) does not provide a sufficient noise suppression effect.
- the high-frequency eddy current can be similarly attenuated.
- forming an anisotropic conductive film so as to have a copper foil surface roughness equal to or greater than the depth of the skin is a complicated process.
- the printed wiring board (2) cannot obtain a sufficient noise suppression effect.
- electromagnetic interference can also be suppressed in the printed wiring board (3).
- the electronic component current supply pattern must be formed on the resistive conductor film by plating, and the process is complicated and the manufacturing process is complicated. Takes time.
- Patent Document 1 JP-A-11 97810
- Patent Document 2 JP 2006 66810
- Patent Document 3 Japanese Unexamined Patent Publication No. 2006-49496
- an object of the present invention is to suppress the resonance between the power supply layer and the ground layer due to simultaneous switching, thereby stabilizing the power supply potential and suppressing unnecessary noise radiation. It is an object of the present invention to provide a member and a manufacturing method capable of efficiently manufacturing the wiring member.
- the wiring member according to the first aspect of the present invention comprises a copper foil and a metal material or conductive ceramic. Including a noise suppression layer having a thickness of 5 to 200 nm, an organic polymer film provided between the copper foil and the noise suppression layer, and provided between the copper foil and the organic polymer film. And an insulating adhesive layer.
- the wiring member according to the first aspect preferably has a total force s of 3 to 30 111 between the thickness of the organic polymer film and the thickness of the insulating adhesive layer.
- the insulating adhesive layer has a thickness of! ⁇ 25 m.
- the noise suppression layer preferably has a partially removed pattern.
- the thickness of the organic polymer film is preferably:! ⁇ 20 ⁇ m! / ,.
- a method for manufacturing a wiring member according to the present invention is the method for manufacturing a wiring member according to the first aspect, and includes the following steps (a), (b), and (c): .
- step is preferably performed in the order of step (a), step (b) and step (c).
- step is preferably performed in the order of step (a), step (c) and step (b).
- step is preferably performed in the order of step (b), step (a) and step (c).
- the method for manufacturing a wiring member of the present invention is the method for manufacturing the wiring member according to the second aspect, and includes the following steps (a), (c), and (b '): These steps are performed in the order of step (a), step (c) and step (b ′).
- the wiring member of the present invention can stabilize the power supply potential by suppressing resonance between the power supply layer and the ground layer due to simultaneous switching in the printed wiring board, and can suppress unnecessary noise emission.
- a wiring member of the present invention it is possible to stabilize the power supply potential by suppressing resonance between the power supply layer and the ground layer caused by simultaneous switching on the printed wiring board.
- a wiring member capable of suppressing noise emission can be efficiently manufactured.
- FIG. 1 is a cross-sectional view showing a wiring member according to a first embodiment of the present invention.
- FIG. 3 is a schematic diagram of FIG. 2.
- FIG. 4 is a diagram showing an example of a patterned noise suppression layer.
- FIG. 5 is a cross-sectional view showing a wiring member according to a second aspect of the present invention.
- FIG. 6 is a cross-sectional view showing an example of a printed wiring board.
- FIG. 7 is a cross-sectional view showing another example of a printed wiring board.
- FIG. 8 is a graph showing S21 (transmission attenuation) of the printed wiring boards of Example 1 and Comparative Example 1.
- FIG. 9 is a graph showing S21 (transmission attenuation) of the printed wiring boards of Example 2 and Comparative Example 2.
- FIG. 1 is a cross-sectional view showing a wiring member according to a first embodiment of the present invention.
- the wiring member 10 includes a copper foil 11, an insulating adhesive layer 12 provided on the copper foil 11, an organic polymer film 13 provided on the insulating adhesive layer 12, and an organic polymer film 13 And a noise suppression layer 14 formed on the surface.
- Examples of the copper foil 11 include electrolytic copper foil and rolled copper foil.
- the surface of the copper foil is roughened by attaching fine copper particles to the surface in order to improve the adhesion to the insulating adhesive layer 12.
- the surface roughness Rz of the copper foil 11 is preferably 0.5 to 8111, more preferably 1 to 5111. If the surface roughness Rz of the copper foil 11 is 8 m or less, even if the insulating adhesive layer 12 is formed thin, defects such as pinholes due to the unevenness of the surface of the copper foil 11 on the insulating adhesive layer 12 Will occur.
- the surface roughness Rz is a ten-point average roughness Rz defined in JIS B 06 01-1994.
- an electrolytic copper foil is particularly preferable.
- the electrolytic copper foil is obtained by depositing copper on the surface of the rotating drum of the cathode using an electrolytic reaction and peeling it from the rotating drum. The surface that was in contact with the drum is transferred with the surface state of the drum. It becomes a smooth surface.
- the shape of the surface on which copper has been electrolytically deposited is rough because the crystal growth rate of the deposited copper differs from crystal surface to crystal surface, which is convenient for bonding to other insulating resin layers (not shown). It is a surface.
- the thickness of the copper foil 11 is preferably 3 to 50 111.
- Copper foil 11 can be peeled from other copper foil, other organic polymer film, etc. on the surface where insulating adhesive layer 12 is not formed in order to improve handling at the time of manufacturing wiring member 10.
- a protective layer or a reinforcing layer may be provided.
- the insulating adhesive layer 12 is a layer made of an insulating adhesive.
- Insulating adhesives are preferably those that can withstand the heating during the production of printed wiring boards and have the heat resistance and moisture resistance required for printed wiring boards. Also, printed wiring such as dielectric constant, dielectric loss tangent, etc. It is preferable that the characteristic values required for board design are known. Yes.
- Examples of the insulating adhesive include polyimide resin, epoxy resin, bismaleimide triazine resin, polytetrafluoroethylene, polyphenylene ether, and the like.
- an epoxy resin is usually used as the insulating adhesive.
- the epoxy resin may contain a curing agent, a curing accelerator, a flexibility imparting agent, and the like as necessary.
- Epoxy resins include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, nopolac type epoxy resin, cresol novolac type epoxy resin, alicyclic epoxy resin, brominated epoxy resin. And glycidylamine type epoxy resin.
- the amount of the epoxy resin is preferably 20 to 80% by mass in 100% by mass of the insulating adhesive.
- Curing agents include amines such as dicyandiamide, imidazoles and aromatic amines; phenols such as bisphenol A and brominated bisphenol A; nopolacs such as phenol nopolac resin and cresol nopolac resin;
- the curing accelerator include tertiary amines, imidazole-based curing accelerators, urea-based curing accelerators, and the like.
- Examples of the flexibility-imparting agent include polyether sulfone resin, aromatic polyamide resin, and elastic resin.
- Aromatic polyamide resins include those synthesized by condensation polymerization of aromatic diamines and dicarboxylic acids.
- aromatic diamines include 4,4′-diaminodiphenylmethane, 3,3′-diaminodiphenylsulfone, m-xylene diamine, 3,3′-oxydianiline, and the like.
- dicarboxylic acid include dicarboxylic acids such as phthalic acid, isophthalic acid, terephthalic acid, and fumaric acid.
- the elastic resin examples include natural rubber, styrene butadiene rubber, butadiene rubber, butyl rubber, and ethylene-propylene rubber.
- nitrile rubber, chloroprene rubber, silicone rubber, or urethane rubber may be used in combination.
- CTBN carboxy group-terminated butadiene nitrile rubber
- the thickness of the insulating adhesive layer 12 depends on the thickness of the organic polymer film 13 and the insulating adhesive layer 12 The thickness is determined in consideration of the thickness of the organic polymer film 13 within a range of 3 to 30 111 in total. If the insulating adhesive layer 12 is too thin, the adhesive strength is weakened. If the insulating adhesive layer 12 is too thick, defects such as microvoids and microcracks are likely to occur after drying. It is very difficult to confirm the occurrence point where the defect is very small. Further, if the insulating adhesive layer 12 is too thick, the wiring member 10 is likely to be curled. Therefore, it is necessary to adjust the flexibility of the insulating adhesive layer 12. Note that if the flexibility is increased, the surface hardness of the insulating adhesive layer 12 tends to decrease, and pinholes are likely to be generated due to scratches, so care must be taken.
- the organic polymer film 13 is highly insulative with fewer defects such as microvoids than the insulating adhesive layer 12 formed by coating.
- the organic polymer film 13 is preferably heat-resistant and moisture-resistant as in the case of the insulating adhesive, and the characteristic values required for the design of the printed wiring board such as dielectric constant and dielectric loss tangent are known. I prefer something that is.
- the organic polymer film 13 may be polyimide polyimide, polyamideimide phenol, polyester sulfone film, polyethylene sulfone film, polyethylene terephthalate film, polyethylene naphthalate film, polyparaphenylene terephthalamide film.
- polyparaphenylene terephthalamide film is particularly preferred because it has excellent mechanical properties and good handleability even with a thin film.
- the organic polymer film 13 may be supported by a peelable peelable film, a reinforcing sheet or the like before being bonded to the copper foil 11 in order to improve the handling property when the wiring member 10 is manufactured.
- the thickness of the organic polymer film 13 is preferably; When the thickness of the organic polymer film 13 is 1 ⁇ m or more, the handling property and the insulating property are good. If the thickness of the organic polymer film 13 is 20 m or less, the electromagnetic coupling between the noise suppression layer 14 and the copper foil 11 becomes strong, and a sufficient noise suppression effect is obtained. Also, if the thickness force of the organic polymer film 13 is less than or equal to ⁇ ⁇ , the insulating adhesive layer 12 can be made thicker, so that the adhesive strength between the copper foil 11 and the organic polymer film 13 becomes stronger. The total of the thickness of the organic polymer film 13 and the thickness of the insulating adhesive layer 12 is preferably 3 to 30 ⁇ m.
- the total thickness is 3 m or more, the insulation between the copper foil 11 and the noise suppression layer 14 is sufficiently maintained, the short circuit between the copper foil 11 and the noise suppression layer 14 is suppressed, and sufficient noise is achieved. Suppressing effect is obtained. If the total thickness is 3 m or more, the noise suppressing layer 14 is not affected by etching when the copper foil 11 is patterned by etching. When the total thickness is 30 m or less, the printed wiring board including the wiring member 10 can be thinned. Further, if the total thickness is 30 m or less, the noise suppression layer 14 and the copper foil 11 come close to each other, so that the electromagnetic coupling between the noise suppression layer 14 and the copper foil 11 becomes strong, and sufficient noise suppression is achieved. An effect is obtained.
- the noise suppression layer 14 is a thin film having a thickness of 5 to 200 nm containing a metal material or conductive ceramics.
- the thickness of the noise suppression layer 14 is 5 nm or more, a sufficient noise suppression effect can be obtained.
- the thickness of the noise suppression layer 14 exceeds 200 nm, the microcluster described later grows and a homogeneous thin film made of a metal material or the like is formed, the surface resistance is reduced, the metal reflection becomes stronger, and the noise suppression. The effect is also reduced.
- the thickness of the noise suppression layer 14 is measured on the electron microscope image based on the high-resolution transmission electron microscope image of the noise suppression layer cross section in the film thickness direction. Calculate by averaging.
- FIG. 2 is a field emission scanning electron microscope image of the surface of the noise suppression layer
- FIG. 3 is a schematic diagram thereof.
- the noise suppression layer 14 is observed as an aggregate of a plurality of microclusters 15. There are physical defects between the microclusters 15 and the film is not homogeneous.
- the inhomogeneous thin film means that the volume resistivity R ( ⁇ -cm) converted from the measured surface resistance of the noise suppression layer 14 and the volume resistivity R ( ⁇ ⁇ ⁇ ) of the metal material or conductive ceramic) c
- the surface resistance of the noise suppression layer 14 is preferably 50 to 500 ⁇ .
- Noise suppression layer 14 surface resistance The resistance is measured as follows.
- Examples of the metal material include ferromagnetic metals and paramagnetic metals.
- Ferromagnetic metals include iron, carbonyl iron; Fe—Ni, Fe—Co, Fe—Cr, Fe—Si, Fe—Al, Fe—Cr—Si, Fe—Cr—Al, Fe—Al—Si, Iron alloys such as Fe—Pt; cobalt, nickel;
- Examples of the paramagnetic metal include gold, silver, copper, tin, lead, tungsten, silicon, aluminum, titanium, chromium, tantalum, molybdenum, alloys thereof, amorphous alloys, and alloys with ferromagnetic metals.
- nickel, iron-chromium alloy, tungsten, chromium, tantalum, and noble metals are preferred because of their resistance to oxidation.
- noble metals are expensive, nickel or nickel alloys, in which nickel, nickel-chromium alloy, iron-chromium alloy, tungsten, chromium, and tantalum are preferred are practically preferred.
- Examples of the conductive ceramic include an alloy, an intermetallic compound, a solid solution, and the like including a metal and at least one element selected from the group consisting of boron, carbon, nitrogen, silicon, phosphorus, and sulfur. It is done. Specifically, nickel nitride, titanium nitride, tantalum nitride, chromium nitride, titanium carbide, silicon carbide, chromium carbide, vanadium carbide, zirconium carbide, molybdenum carbide, tungsten carbide, chromium boride, molybdenum boride, kaide Examples thereof include chrome and zirconium iodide.
- Conductive ceramics have a volume resistivity higher than that of metal, the noise suppression layer including the conductive ceramics does not have a specific resonance frequency, and the frequency that exhibits the noise suppression effect is widened. It has advantages such as high storage stability. Conductive ceramics can be easily obtained by using a gas containing one or more elements selected from the group consisting of nitrogen, carbon, silicon, boron, phosphorus and sulfur as a reactive gas in the physical vapor deposition method described later. Is obtained.
- an adhesion promoting layer (not shown) may be provided between the copper foil 11 and the insulating adhesive layer 12.
- the adhesion promoting layer is a layer formed by applying an adhesion promoter on the copper foil 11.
- adhesion promoter include silane coupling agents and titanate coupling agents.
- silane coupling agent examples include butyltriethoxysilane, butyltris (2-methoxyethoxy) silane, 3-methacryloxypropyltrimethoxysilane, 3-glycidoxypropynoletrimethoxysilane, 2- (3, 4-Epoxycyclohexenole) ethinoret trimethoxysilane, N-2- (aminoethyl) 3-aminopropyltrimethoxysilane, N-2- (aminoethyl) 3-aminopropylmethyldimethoxysilane, 3-a Minopropyltriethoxysilane, N-F
- Examples include 3-chloropropyl methoxytrimethoxysilane.
- Titanate coupling agents include isopropyl triisostearoyl titanate, isopropyl tris (dioctyl pyrophosphate) titanate, isopropyl tri (N-aminoethyl-aminoethyl) titanate, tetraoctyl bis (ditritriol).
- Decylphosphite Titanate, bis (dioctylpyrophosphate) oxyacetate titanate, bis (dioctylolepine phosphate) ethylene titanate, isopropylinotrioctanoinoretitanyl diacryl titanate, tetraisopropylbis (dioctylphosphite) ) Titanate and the like.
- 3-glycidoxypropyltrimethoxysilane is usually used, and when the peel strength between the copper foil 11 and the insulating adhesive layer 12 is increased to 1. Okgf / cm or more. 3-mercaptopropyltrimethoxysilane is preferred.
- the copper foil 11 and the organic polymer film 13 are coated with an insulating adhesive. Therefore, high insulation is maintained between the noise suppression layer 14 and the copper foil 11 where metal ions and the like do not enter the insulating adhesive layer 12 formed after the noise suppression layer 14 is formed. it can.
- the method (I) further includes the following two methods.
- a noise suppression layer 14 is formed by physically vapor-depositing a metal material or conductive ceramic on the organic polymer film 13, and an organic polymer film 13 provided with the noise suppression layer 14 is obtained. Process.
- a metal material or conductive ceramic is deposited very thin and physically on the organic polymer film 13 with few defects such as microcracks, thereby forming a noise suppression layer 14 consisting of microclusters with inhomogeneous thin film force.
- the target metal material or conductive ceramics
- the vaporized metal material is placed in the vicinity! 13
- It is a method of depositing on top.
- the target can be divided into an evaporation system and a sputtering system.
- the evaporation system include electron beam (EB) vapor deposition and ion plating.
- Sputtering systems include high frequency sputtering, magnetron sputtering, counter target magnetron sputtering, Examples thereof include an ion implantation method.
- the argon gas and the ions of the evaporated particles are accelerated and collide with the substrate, so the energy of the particles, which is larger than that of the EB vapor deposition method, is about 1 KeV, and noise suppression with strong adhesion is achieved. Layer 14 can be obtained. However, it is impossible to avoid adhesion of micro-sized particles called droplets, and there is a risk that the discharge will stop.
- the magnetron sputtering method is characterized by low target utilization efficiency but high particle energy at a high growth rate of several tens of eV because a strong plasma is generated under the influence of a magnetic field.
- a target with low conductivity can be used.
- the opposed target type magnetron sputtering method generates plasma between opposed targets, confines the plasma by a magnetic field, and places a substrate outside the opposed targets, so that the substrate is not damaged. This is a method of depositing metal materials etc. on the material. Therefore, it does not re-sputter the metal material etc. on the substrate, has a higher growth rate, and does not relax the collision of the sputtered metal atoms, and has the same composition as the target composition. It is possible to form a dense microphone mouth cluster having
- a gas containing one or more elements selected from the group consisting of nitrogen, carbon, silicon, boron, phosphorus, and sulfur may be used as a reactive gas.
- the copper foil 11 and the organic polymer film 13 are placed so that the back surface (non-deposition surface) of the organic polymer film 13 on which the noise suppression layer 14 is provided is in contact with the insulating adhesive.
- the molecular film 13 is bonded together using an insulating adhesive.
- the insulating adhesive is applied in the form of a solution to the back surface of the copper foil 11 or the organic polymer film 13 on which the noise suppression layer 14 is provided. By drying the applied coating film, the semi-cured insulating adhesive layer 12 is formed. Insulating adhesive layer 12 It may be formed on a film, formed on a release film that may be transferred to the copper foil 11 or the organic polymer film 13, peeled off from the release film, and used as a single insulating adhesive sheet.
- Application is performed using a doctor knife coater, comma coater, Ronore coater, gravure coater, die coater or the like.
- the bonding of the copper foil 11 and the organic polymer film provided with the noise suppression layer is performed after forming the semi-cured insulating adhesive layer 12 on the copper foil 11 or the organic polymer film 13,
- the copper foil 11 and the organic polymer film 13 are overlapped via the insulating adhesive layer 12, and are pressed and heated. Pressurization and heating are performed using a hot roll laminator, vacuum heating press, or the like.
- step (c) the noise suppression layer 14 is processed into a desired pattern as shown in FIG. 4, for example. At this time, an anti-via such as a through hole may be formed.
- the white part is the processed noise suppression layer 14 and the black part is the organic polymer film 13 exposed on the surface.
- the noise suppression layer 14 can be processed into a desired pattern by a normal wet method (wet etching method), dry method (plasma etching method, laser ablation method), etc., and the steps such as washing and drying can be performed.
- the dry method is preferred because it is not necessary and there is no concern about contamination.
- the wavelength of the laser used in the laser ablation method is appropriately selected according to the type of laser (carbonic acid gas, YAG, excimer, etc.), the characteristics of the noise suppression layer 14 and the like.
- shifting the focus or reducing the energy without supplying energy up to the laser ablation is important in avoiding damage to the organic polymer film 13, and the target area is heated instantaneously.
- the adjacent microclusters can be completely insulated.
- a laser etching apparatus, a condensing heating type apparatus using a halogen lamp, or the like can be used as an apparatus used for laser abrasion.
- the method (II) includes the steps (b), (a) and (c) in this order. A method is mentioned.
- the insulating adhesive is applied to the copper foil 11 or the organic polymer film 13 in a solution state.
- the semi-cured insulating adhesive layer 12 is formed.
- the insulating adhesive layer 12 is formed on the release film, formed on the release film that can be transferred to the copper foil 11 or the organic polymer film 13, and peeled off from the release film to provide a single insulating property. Use it as an adhesive sheet.
- Application is performed using a doctor knife coater, comma coater, roll coater, gravure coater, die coater, or the like.
- the bonding of the copper foil 11 and the organic polymer film 13 is performed by forming the semi-cured insulating adhesive layer 12 on the copper foil 11 or the organic polymer film 13, and then the copper foil 11 and the organic polymer film 13.
- the molecular film 13 is superposed on the insulating adhesive layer 12 and then pressed and heated. Pressurization and heating are performed using a hot roll laminator, vacuum heating press, etc.
- a heterogeneous material consisting of microclusters can be obtained by physically depositing a metal material or conductive ceramic on the organic polymer film 13 with few defects such as microcracks.
- a noise suppression layer 14 made of a thin film is formed.
- the physical vapor deposition method and the like are also the same as the method (I) described above, and are omitted here.
- the noise suppression layer 14 is processed into a desired pattern as shown in FIG. 4, for example.
- FIG. 5 is a cross-sectional view showing a wiring member according to the second aspect of the present invention.
- the wiring member 10 ′ is provided between the copper foil 11, the organic polymer film 13, the noise suppression layer 14 formed on the surface of the organic polymer film 13, and the copper foil 11 and the noise suppression layer 14. And an insulating adhesive layer 12. Only the differences from the wiring member of the first aspect will be described below. [0056]
- the wiring member 10 'in FIG. 5 has a noise suppression layer 14 between the organic polymer film 13 and the copper foil 11 and is in a protected state. Resistant to shear stress due to pre-predder flow during manufacture.
- the thickness of the insulating adhesive layer 12 in the wiring member 10 'of FIG. If the thickness of the insulating adhesive layer 12 is 1 m or more, the insulation between the copper foil 11 and the noise suppression layer 14 is sufficiently maintained, and a short circuit between the copper foil 11 and the noise suppression layer 14 can be suppressed. A sufficient noise suppressing effect can be obtained. If the thickness of the insulating adhesive layer 12 is 25 m or less, the printed wiring board having the wiring member 10 ′ can be thinned. In addition, when the thickness force of the insulating adhesive layer 12 is 3 ⁇ 45 111 or less, the noise suppression layer 14 and the copper foil 11 come close to each other, so that the electromagnetic coupling between the noise suppression layer 14 and the copper foil 11 is strengthened. A sufficient noise suppression effect can be obtained.
- the wiring member 10 ′ in FIG. 5 can be manufactured by the following method (1-2 ′). In the method (I-2 ′), the steps (a), (c) and (b ′) are performed in this order.
- a metal material or conductive ceramic is physically vapor-deposited on the organic polymer film 13 in the same manner as in the method for manufacturing the wiring member of the first aspect.
- a noise suppression layer 14 made of a thin film is formed on the organic polymer film 13.
- step (c) a part of the noise suppression layer 14 is removed and processed into a desired pattern in the same manner as in the method for manufacturing the wiring member of the first aspect.
- the copper foil 11 and the noise suppression layer 14 are bonded together using an insulating adhesive, and the insulating adhesive layer 12 is formed between the copper foil 11 and the noise suppression layer 14. .
- the noise suppression layer 14 that has been previously formed on the organic polymer film 13 and partially removed, and the copper foil 11 have an insulating adhesive. Insulation between the noise suppression layer 14 and the copper foil 11 that prevents metal ions from entering the insulating adhesive layer 12 that is formed after the noise suppression layer 14 is formed. Can be kept high.
- the wiring member of the present invention is used for a printed wiring board.
- the copper foil in the wiring member In a wiring board it is a signal wiring layer, a power supply layer or a ground layer.
- the copper foil in the wiring member is preferably a power supply layer or a ground layer, and is preferably a power supply layer.
- a noise suppression layer is disposed between the power supply layer and the ground layer.
- FIG. 6 is a cross-sectional view showing an example of a printed wiring board using the wiring member 10 of FIG. 1
- FIG. 7 is a cross-sectional view showing an example of the printed wiring board using the wiring member 10 ′ of FIG. FIG.
- the printed wiring board 20 includes, in order from the top, a patterned signal wiring layer 21, a ground layer 22, a power supply layer 23, and a patterned signal wiring layer 21 covering almost the entire surface of the printed wiring board 20, and an insulating layer 24 Are stacked. Although not shown, the upper and lower signal wiring layers 21 are partially connected by through holes or the like.
- the power supply layer 23 is the copper foil 11 of the wiring member 10 or 10 ′.
- a noise suppression layer 14 having almost the same size as the ground layer 22 is provided via an insulating adhesive layer 12 and an organic polymer film 13.
- a noise suppression layer 14 having almost the same size as the ground layer 22 is provided between the insulating adhesive layer 12 and the organic polymer film 13. ing.
- the power supply layer 23 is divided into two parts, and the divided power supply layers 23 are insulated from each other.
- the printed wiring board 20 is manufactured as follows, for example.
- an insulating adhesive layer 24 is formed by sandwiching and curing a pre-predator made by impregnating an epoxy resin or the like in glass fiber to form the wiring member 10
- the 10 'copper foil 11 is used as the power supply layer 23, and the other copper foil is used as the ground layer 22.
- the wiring member of the present invention described above includes a copper foil, a noise suppression layer having a thickness of 5 to 200 nm containing a metal material or conductive ceramics, an organic polymer film, the copper foil, and the noise.
- the wiring member is a wiring member for a high-quality printed wiring board having high internal insulation.
- this wiring member can be manufactured efficiently.
- the insulation between the noise suppression layer 14 and the copper foil 11 can be maintained high.
- the cross section of the noise suppression layer was observed using a transmission electron microscope H9000NAR manufactured by Hitachi, Ltd., and the thicknesses of the five noise suppression layers were measured and averaged.
- a super insulation meter SM-8210 manufactured by Toa DKK Corporation, applied a measurement voltage of 50V, measured the resistance between the copper foil and the noise suppression layer, and evaluated the insulation.
- a two-layer board consisting of a ground layer and a power supply layer is fabricated, and SMA connectors connected to the power supply layer and the Darling layer are installed at both ends of the power supply layer, and a network analyzer (Anritsu Corporation) connected to the connector.
- S21 transmission attenuation, unit: dB
- dB transmission attenuation, unit: 37247D
- Example 1 On the entire surface of one side of a 4 ⁇ m thick polyparaphenylene terephthalamide film (manufactured by Teijin Advanced Film Co., Ltd., registered trademark: ALAMICA), chromium metal was deposited by EB deposition, and a noise suppression layer with a thickness of 15 nm was formed. The film with a noise suppression layer was formed. When the surface of the noise suppression layer was observed with a high-resolution transmission electron microscope, a heterogeneous thin film as shown in Fig. 2 was confirmed. The surface resistance of the noise suppression layer was 89 ⁇ .
- the surface roughness Rz of one surface is 3 ⁇ 4 111, and the varnish is applied on the smooth surface of the electrolytic copper foil of thickness 18 111, width 500mm, length 500mm with a roll coater, After drying, a semi-cured insulating adhesive layer having a thickness of 7 im was formed.
- the copper foil and the film with the noise suppression layer are bonded via the insulating adhesive layer so that the polyparaphenylene terephthalamide film (non-deposition surface) of the film with the noise suppression layer is in contact with the insulating adhesive layer. They were laminated with a roll at 180 ° C, and then placed in a hot air oven at 150 ° C for 1 hour to cure the insulating adhesive. As a result, a 29 m thick wiring member is obtained in which the polyparaphenylene terephthalamide film is sandwiched between the copper foil and the noise suppression layer, and the insulating adhesive layer is sandwiched between the copper foil and the polyphenylene terephthalamide film. It was.
- the wiring member was cut to a size of 74 mm ⁇ 160 mm, and a part of the noise suppression layer was removed by a laser etching apparatus, and processed into a pattern similar to FIG.
- the insulation between the copper foil and the noise suppression layer was confirmed to be 6 ⁇ 10 12 ⁇ .
- the wiring member and 18 m thick copper foil are integrated via a 0.2 mm thick pre-preda to produce a two-layer substrate, and etching is performed so that the copper foil size of the wiring member is 68 mm x 160 mm. did.
- the substrate was measured for S21 by the S-parameter method. The result is shown in Fig. 8.
- Polyamideimide solution (Toyobo Co., Ltd., registered trademark: Biguchi Max HR13NX) It is applied on a 50,1 m thick polyethylene naphthalate film and dried to form a 6,1 m thick polyamidoimide phenol, and a 56,1 m thick laminated sheet. Got.
- a tantalum metal is deposited on a polyimide imide film by reactive sputtering while flowing nitrogen gas to form a noise suppression layer with a thickness of 20nm, 160mm XI 60mm, and a laminated sheet with a noise suppression layer Got.
- the surface resistance of the noise suppression layer was 152 ⁇ .
- a part of the noise suppression layer was removed by a laser etching apparatus and processed into the same pattern as in FIG.
- An electrolytic copper foil having a surface roughness Rz of one surface (smooth surface) Rz of 5.3 m, a thickness of 12 111, a width of 74 mm, and a length of 160 mm was prepared.
- the copper foil and the laminated sheet with the noise suppression layer are passed through an epoxy prepredder having a thickness of 24 ⁇ so that the vapor deposition surface (noise suppression layer) of the laminated sheet with the noise suppression layer is in contact with the epoxy prepreader (insulating adhesive). Then, after temporarily adhering using a vacuum press at 150 ° C for 2 minutes, peel off the polyethylene naphthalate film and again press the vacuum press at 130 ° C; 170 ° C (temperature increase rate: 1.2 ° C / min) went. As a result, a wiring member having a thickness of 48 111 was obtained in which the noise suppression layer was sandwiched between the polyamideimide film and the copper foil, and the insulating adhesive layer was sandwiched between the copper foil and the noise suppression layer.
- the insulation between the copper foil and the noise suppression layer was confirmed to be 8 ⁇ 10 13 ⁇ .
- a two-layer substrate was produced in the same manner as in Example 1.
- the two-layer substrate was adjusted to a size of 74 mm ⁇ 160 mm, and etched so that the size of the foil of the spring member was 56 mm ⁇ 160 mm.
- the substrate was measured for S21 by the S-parameter method. The results are shown in Fig. 9.
- a wiring member was obtained in the same manner as in Examples 1 and 2 except that no noise suppression layer was formed. Using the wiring member, a two-layer substrate was produced in the same manner as in Examples 1 and 2, and S21 was measured for the substrate by the S parameter method. The results are shown in FIGS.
- the thickness of the insulating adhesive layer was 11 m, and a noise suppression layer was formed on the insulating adhesive layer.
- a 29 m thick wiring member was obtained.
- Bisphenol A type epoxy resin Japan Epoxy Resin Co., Ltd., 1001 43.5 parts by mass, carboxy group-terminated butadiene nitrile rubber (manufactured by Nippon Zeon Co., Ltd., registered trademark: Nippon Nore 1072)
- Add masquerade accelerator for imidazonole type hardened accelerator manufactured by Shikoku Kasei Co., Ltd., registered trademark: Curesol 2E4MZ
- One surface is coated with a roll coater on the smooth surface of electrolytic copper foil with a surface roughness Rz of 3 ⁇ 4 111, thickness 18 111, width 500 mm, and length 500 mm. Then, it was dried to form a semi-cured insulating adhesive layer having a thickness of 7, im.
- Chromium metal was vapor-deposited by EB vapor deposition on a polyparaphenylene terephthalamide film of copper foil with a film to form a noise suppression layer having a thickness of 15 nm to obtain a wiring member.
- a noise suppression layer having a thickness of 15 nm to obtain a wiring member.
- the wiring member was cut to a size of 74 mm ⁇ 160 mm, and a part of the noise suppression layer was removed by a laser etching apparatus, and processed into a pattern similar to FIG.
- the insulation between the copper foil and the noise suppression layer was confirmed to be 6 ⁇ 10 12 ⁇ .
- the wiring member and 18 m thick copper foil are integrated via a 0.2 mm thick pre-preda to produce a two-layer substrate, and etching is performed so that the copper foil size of the wiring member is 68 mm x 160 mm. did.
- S21 of the substrate by the S parameter method the same result as in Example 1 was obtained.
- Example 4 1% by weight of 3-glycidoxypropyltrimethoxysilane solution was applied on the surface of an electrolytic copper foil having a surface roughness Rz of 0.4 m and a thickness of 35 m using a spray coater. Drying with C formed an adhesion promoting layer.
- the varnish was applied onto the adhesion promoting layer using a roll coater so that the thickness after drying was 6 m, thereby forming a coating film.
- the coating film was air-dried for 20 minutes, and then semi-cured at 160 ° C. for 5 minutes to obtain a copper foil having a size of 300 mm ⁇ 300 mm on which an insulating adhesive layer was formed.
- the copper foil on which the insulating adhesive layer is formed and a polyimide film having a thickness of 12 m are brought into contact with the insulating adhesive layer and the polyimide film. Then, after laminating with a hot roll of 170 ° C, post-curing was performed at 150 ° C for 30 minutes to obtain a copper foil with a film of 53 m in thickness.
- Nickel metal was deposited on a polyimide film of a copper foil with a film by a reactive sputtering method while flowing nitrogen gas to form a noise suppression layer, whereby a wiring member was obtained.
- the surface resistance of the noise suppression layer was 58 ⁇ .
- the insulation between the copper foil and the noise suppression layer was confirmed to be 4 ⁇ 10 12 ⁇ .
- a wiring member was obtained in the same manner as in Example 3 except that no noise suppression layer was formed. Using the wiring member, a two-layer substrate was produced in the same manner as in Example 3. As a result of measuring S21 by the S parameter method for the substrate, the same results as in Comparative Example 1 were obtained.
- the thickness of the insulating adhesive layer was 18 m, and a noise suppression layer was formed on the insulating adhesive layer, the same as in Example 4, Thickness A 53 m long wiring member was obtained. Conductivity was confirmed when the insulation between the copper foil and the noise suppression layer was confirmed.
- the wiring member of the present invention is useful as a member constituting a printed wiring board for supplying power, transmitting signals, etc. to semiconductor elements such as IC and LSI, electronic components, and the like. Further, such a wiring member can be manufactured by the manufacturing method of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Structure Of Printed Boards (AREA)
- Laminated Bodies (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200780037604.1A CN101682982B (zh) | 2006-10-10 | 2007-10-10 | 配线部件及其制造方法 |
| JP2008538734A JP5081831B2 (ja) | 2006-10-10 | 2007-10-10 | 配線部材およびその製造方法 |
| US12/444,773 US8541686B2 (en) | 2006-10-10 | 2009-04-08 | Wiring member and method for producing the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006276304 | 2006-10-10 | ||
| JP2006-276304 | 2006-10-10 | ||
| JP2006-276303 | 2006-10-10 | ||
| JP2006276303 | 2006-10-10 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/444,773 Continuation US8541686B2 (en) | 2006-10-10 | 2009-04-08 | Wiring member and method for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008044698A1 true WO2008044698A1 (en) | 2008-04-17 |
Family
ID=39282891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/069736 Ceased WO2008044698A1 (en) | 2006-10-10 | 2007-10-10 | Wiring member and process for producing the same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8541686B2 (ja) |
| JP (1) | JP5081831B2 (ja) |
| CN (2) | CN101682982B (ja) |
| TW (1) | TWI426830B (ja) |
| WO (1) | WO2008044698A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010021328A1 (ja) * | 2008-08-19 | 2010-02-25 | 信越ポリマー株式会社 | プリント配線板 |
| JP2014030067A (ja) * | 2013-11-15 | 2014-02-13 | Shin Etsu Polymer Co Ltd | プリント配線板および光モジュール |
| JP2015133474A (ja) * | 2014-01-14 | 2015-07-23 | 広州方邦電子有限公司 | 電磁波シールドフィルム及びシールドフィルムを含む回路基板の作製方法 |
| KR20160095492A (ko) * | 2015-02-03 | 2016-08-11 | 주식회사 아모센스 | 세라믹 dbc 기판 및 그 제조 방법 |
| JP2018074032A (ja) * | 2016-10-31 | 2018-05-10 | 信越ポリマー株式会社 | 電磁波シールドフィルムおよびその製造方法、ならびに電磁波シールドフィルム付きプリント配線板 |
| CN110290631A (zh) * | 2019-06-13 | 2019-09-27 | 广合科技(广州)有限公司 | 一种高速pcb板内外层损耗控制工艺 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI488552B (zh) * | 2013-08-20 | 2015-06-11 | Copper foil substrate for high frequency printed circuit board and its application | |
| JP2015076526A (ja) * | 2013-10-09 | 2015-04-20 | 旭化成せんい株式会社 | ノイズ抑制シート |
| CN105984180A (zh) * | 2015-02-11 | 2016-10-05 | 律胜科技股份有限公司 | 用于高频印刷电路板的铜箔基板材及其应用 |
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| JP2006140430A (ja) * | 2004-10-12 | 2006-06-01 | Shin Etsu Polymer Co Ltd | 伝導ノイズ抑制体および伝導ノイズ抑制体付電子部品 |
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| US4755911A (en) * | 1987-04-28 | 1988-07-05 | Junkosha Co., Ltd. | Multilayer printed circuit board |
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| CN100388873C (zh) * | 2003-03-25 | 2008-05-14 | 信越聚合物株式会社 | 电磁波噪声抑制体、具有电磁波噪声抑制功能的物品及其制造方法 |
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| JP4381871B2 (ja) * | 2004-04-09 | 2009-12-09 | 信越ポリマー株式会社 | 電磁波ノイズ抑制体、その製造方法、および電磁波ノイズ抑制機能付きプリント配線板 |
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| JP4611699B2 (ja) * | 2004-09-24 | 2011-01-12 | 信越ポリマー株式会社 | 伝導ノイズ抑制体および伝導ノイズ対策方法 |
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- 2007-10-09 TW TW096138002A patent/TWI426830B/zh not_active IP Right Cessation
- 2007-10-10 CN CN200780037604.1A patent/CN101682982B/zh not_active Expired - Fee Related
- 2007-10-10 JP JP2008538734A patent/JP5081831B2/ja not_active Expired - Fee Related
- 2007-10-10 CN CN201210041081.0A patent/CN102612256B/zh not_active Expired - Fee Related
- 2007-10-10 WO PCT/JP2007/069736 patent/WO2008044698A1/ja not_active Ceased
-
2009
- 2009-04-08 US US12/444,773 patent/US8541686B2/en not_active Expired - Fee Related
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| JPH09293988A (ja) * | 1996-04-26 | 1997-11-11 | Toshiba Chem Corp | 多層プリント配線板用シールド板の製造方法 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010021328A1 (ja) * | 2008-08-19 | 2010-02-25 | 信越ポリマー株式会社 | プリント配線板 |
| JP2010050166A (ja) * | 2008-08-19 | 2010-03-04 | Shin Etsu Polymer Co Ltd | プリント配線板 |
| US8507801B2 (en) | 2008-08-19 | 2013-08-13 | Shin-Etsu Polymer Co., Ltd. | Printed wiring board |
| JP2014030067A (ja) * | 2013-11-15 | 2014-02-13 | Shin Etsu Polymer Co Ltd | プリント配線板および光モジュール |
| JP2015133474A (ja) * | 2014-01-14 | 2015-07-23 | 広州方邦電子有限公司 | 電磁波シールドフィルム及びシールドフィルムを含む回路基板の作製方法 |
| KR20160095492A (ko) * | 2015-02-03 | 2016-08-11 | 주식회사 아모센스 | 세라믹 dbc 기판 및 그 제조 방법 |
| KR102361626B1 (ko) | 2015-02-03 | 2022-02-11 | 주식회사 아모센스 | 세라믹 dbc 기판 및 그 제조 방법 |
| JP2018074032A (ja) * | 2016-10-31 | 2018-05-10 | 信越ポリマー株式会社 | 電磁波シールドフィルムおよびその製造方法、ならびに電磁波シールドフィルム付きプリント配線板 |
| CN110290631A (zh) * | 2019-06-13 | 2019-09-27 | 广合科技(广州)有限公司 | 一种高速pcb板内外层损耗控制工艺 |
| CN110290631B (zh) * | 2019-06-13 | 2020-12-18 | 广州广合科技股份有限公司 | 一种高速pcb板内外层损耗控制工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101682982A (zh) | 2010-03-24 |
| TW200830947A (en) | 2008-07-16 |
| US8541686B2 (en) | 2013-09-24 |
| CN102612256B (zh) | 2015-06-03 |
| JPWO2008044698A1 (ja) | 2010-02-12 |
| US20130168142A1 (en) | 2013-07-04 |
| JP5081831B2 (ja) | 2012-11-28 |
| CN101682982B (zh) | 2012-06-06 |
| CN102612256A (zh) | 2012-07-25 |
| TWI426830B (zh) | 2014-02-11 |
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