WO2001013686A1 - Carte de circuits imprimes multicouches, composition d'epargne de soudage, procede de fabrication de ladite carte imprimee et dispositif semi-conducteur - Google Patents
Carte de circuits imprimes multicouches, composition d'epargne de soudage, procede de fabrication de ladite carte imprimee et dispositif semi-conducteur Download PDFInfo
- Publication number
- WO2001013686A1 WO2001013686A1 PCT/JP2000/005044 JP0005044W WO0113686A1 WO 2001013686 A1 WO2001013686 A1 WO 2001013686A1 JP 0005044 W JP0005044 W JP 0005044W WO 0113686 A1 WO0113686 A1 WO 0113686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- printed wiring
- wiring board
- multilayer printed
- solder resist
- Prior art date
Links
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- 238000001029 thermal curing Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15312—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a pin array, e.g. PGA
-
- 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
- H05K3/4602—Manufacturing multilayer circuits characterized by a special circuit board as base or central core whereon additional circuit layers are built or additional circuit boards are laminated
Definitions
- Multilayer printed wiring board solder resist composition, method for manufacturing multilayer printed wiring board, and semiconductor device
- the present invention relates to a multilayer printed wiring board, a method for manufacturing the multilayer printed wiring board, a solder resist composition, and a semiconductor device.
- Multilayer printed wiring boards so-called multilayer build-up wiring boards, are manufactured by a semi-additive method or the like, and are mounted on a resin substrate reinforced with a glass cloth of about 0.5 to 1.5 mm called a core. It is manufactured by alternately laminating a conductor circuit made of copper or the like and an interlayer resin insulating layer. The connection between the conductor circuits via the inter-layer resin insulation layer of the multilayer printed wiring board is made by via holes.
- build-up multilayer printed wiring boards have been manufactured by a method disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 9-130500.
- a through hole is formed in a copper-clad laminate on which a copper foil is adhered, and then a through hole is formed by performing electroless copper plating.
- the surface of the substrate is etched into a conductor pattern to form a conductor circuit, and a roughened surface is formed on the surface of the conductor circuit by electroless plating or etching.
- exposure and development are performed to form a via hole opening, and then an interlayer resin insulating layer is formed through UV curing and main curing. I do.
- a thin electroless plating film is formed, and a plating resist is formed on the electroless plating film, followed by electrolytic plating. Then, etching is performed after the plating resist is stripped to form a conductor circuit connected to the underlying conductor circuit by a via hole.
- solder resist layer for protecting the conductor circuit is formed, and an opening is provided for connection with electronic components such as IC chips and mother boards. After the exposed portions are plated, the solder paste is printed to form solder bumps, thereby completing the manufacture of the build-up multilayer printed wiring board.
- the multilayer printed wiring board manufactured in this way is reflowed after mounting the IC chip, connecting the solder bumps to the pads of the IC chip, and forming an underfill (resin layer) under the IC chip. Then, by forming a sealing layer made of resin or the like on the IC chip, the manufacture of the semiconductor device on which the IC chip is mounted is completed.
- the expansion coefficient (linear expansion coefficient) of each layer usually differs due to the material of each layer. That is, the linear expansion coefficient of the IC chip, the underfill, and the interlayer resin insulation layer is usually 20 ⁇ 10 ⁇ or less. However, the linear expansion coefficient of the solder resist layer is reduced due to the difference in the resin used. 6 0 X 1 0 — 6 to 8 0 X 1 ⁇ ⁇ ⁇ " 1 High, some of which are higher than 100 X 1 ⁇ ⁇ ⁇ " 1 .
- the IC chip When a semiconductor device having such a configuration is operated, the IC chip generates heat, and this heat is transmitted to the solder resist layer, the interlayer resin insulation layer, and the like via an underfill, and these layers are thermally expanded due to a rise in temperature. I do.
- Such cracking and peeling may also occur due to heating during the formation of solder bumps, heat cycle tests in which multilayer printed wiring boards are exposed to severe conditions, and reliability under high temperature and high humidity. In the test, cracks and the like are more likely to occur. If cracks occur in the solder resist layer, the insulation between the conductor circuit under the solder resist layer and the solder bumps or the like cannot be maintained, resulting in a decrease in insulation and reliability.
- the interlayer resin insulation is used. Since a mixture of epoxy resin, acrylic resin, etc. is used for the layer, the dielectric constant and dielectric tangent in the GHz band are high.In this case, if an LSI chip using a high frequency signal in the GHz band is mounted, In some cases, signal delays and signal errors occur due to the high dielectric constant of the interlayer resin insulating layer.
- the bumps for the external terminals of the solder resist layer may be generated due to the electromagnetic interaction between the wirings and the high dielectric properties of the insulating layer surrounding it. There was a problem that signal delays occurred inside and between wires.
- the solder resist layer If the dielectric constant is high, the effect is offset, and signal delay and signal error may occur.
- solder resist composition a (meth) atalylate of a novolak type epoxy resin, an imidazole curing agent, a bifunctional (meth) acrylate monomer, Polymers of (meth) acrylic acid ester having a molecular weight of about 500 to 500, thermosetting resin composed of bisphenol-type epoxy resin, photosensitive monomer such as polyvalent acrylic monomer, and glycol ether-based A paste-like fluid containing a solvent is used.
- the solder resist layer was formed by performing the depressing.
- a multilayer printed wiring board having such a solder resist layer is used by mounting an electronic component such as an IC chip. Therefore, if the IC chip or the like ignites for various reasons, it is desired to be able to withstand it. Specifically, those that pass the UL 94 criterion in the UL test standard are desired, and in particular, those that pass the combustion time criterion of 94 V-10 are desired.
- the multilayer printed wiring board satisfies the above-described flame retardancy standards, and when forming the opening for the via hole and the opening for the solder pad, the multilayered printed wiring board is used with the resin insulating layer and the solder resist layer of the existing multilayer printed wiring board. It is desired that the opening property does not decrease in comparison, and that the adhesion between the resin insulating layer and the like and the conductor circuit does not decrease. Furthermore, it is also desired that the performance does not decrease when a reliability test is performed. .
- the present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a multi-layer printed wiring board manufacturing process, in which an IC chip is mounted on the multilayer printed wiring board, and a solder-resist layer is formed.
- a multilayer printed wiring board free from cracks or the like caused by a difference in thermal expansion from other parts, a solder resist composition used for manufacturing the multilayer printed wiring board, and a multilayer printed using the solder resist composition It is to propose a method for manufacturing a wiring board.
- Another object of the present invention is to provide a multilayer printed wiring board having a solder-resist layer in which signal delay and signal error are unlikely to occur even when a high frequency signal in the GHz band is used, and a semiconductor device. It is in.
- a first invention of a first group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder-resist layer is formed on an outermost layer.
- the resist layer is a multilayer printed wiring board characterized by containing an inorganic filler.
- a second invention of the first group of the present invention is a solder resist composition used for producing the multilayer printed wiring board of the first invention of the first group of the present invention
- a solder resist composition comprising an inorganic filler mixed in a paste containing a resin for a solder resist layer.
- a third invention of the first group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulation layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist composition
- the first invention of the second group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer.
- the above-mentioned solder resist layer is a multilayer printed wiring board characterized by containing one elastomer component.
- a second invention of the second group of the invention is a solder resist composition used for producing the multilayer printed wiring board of the first invention of the second group of the invention
- a solder resist composition comprising a paste containing a resin for a solder resist layer and one elastomer component.
- a third invention of the second group of the invention is a method for manufacturing a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an uppermost layer,
- a method for producing a multilayer printed wiring board comprising using a solder resist composition of the second invention of the second group of the present invention.
- a first invention of a third group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer,
- the multilayer printed wiring board is characterized in that the dielectric constant at 1 GHz of the solder resist layer is 3.0 or less.
- a second invention of a third group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board made of a polyolefin-based resin.
- a third invention of a third group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer having solder bumps is formed on an uppermost layer.
- a semiconductor device comprising: an IC chip connected to the multilayer printed wiring board via the solder bumps;
- the solder resist layer is made of a polyolefin resin
- the semiconductor device is characterized in that the resin insulating layer is made of a polyolefin-based resin, a polyphenylene-based resin, or a fluorine-based resin.
- a first invention of a fourth group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer,
- the multilayer printed wiring board is characterized in that a dielectric loss tangent at 1 GHz of the solder-resist layer is 0.01 or less.
- a second group of the second invention of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board made of a polyphenylene ether resin.
- a fourth invention of a fourth group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer having solder bumps is formed on the uppermost layer. And an IC chip connected to the multilayer printed wiring board via the solder bumps,
- the semiconductor device is characterized in that the solder resist layer is made of a polyphenylene ether resin, and the resin insulating layer is made of a polyphenylene ether resin, a polyolefin resin, or a fluorine resin.
- a fifth group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer,
- the solder resist layer is a multilayer printed wiring board characterized by containing a P atom-containing epoxy resin.
- 1 (a) to 1 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 2 (a) to 2 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 3 (a) to 3 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 4 (a) to 4 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 5 (a) to 5 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board according to the present invention.
- 6 (a) to 6 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 7A to 7D are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 8A to 8D are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 9A to 9C are cross-sectional views illustrating a part of the manufacturing process of the multilayer printed wiring board according to the present invention.
- 10 (a) to 10 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 11A to 11D are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 12 (a) to 12 (d) show a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIG. 12 (a) to 12 (d) show a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 13 (a) to 13 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 14 (a) to 14 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 15A and 15B are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 16 (a) to 16 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 17 (a) to 17 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 18 (a) to 18 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 19 (a) to 19 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 20 (a) and (b) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 21 (a) to 21 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 22 (a) to (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 23 (a) to 23 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 24 (a) to 24 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 25 (a) to 25 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 26 (a) to (a) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 27 (a) to 27 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 28 (a) to (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 29 (a) to 29 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 31 (a) to 31 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 32 (a) to 32 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 33 (a) to 33 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 34 (a) to 34 (d) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- 35 (a) to 35 (c) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention.
- FIGS. 36 (a) and (b) are cross-sectional views showing a part of the manufacturing process of the multilayer printed wiring board of the present invention. Explanation of reference numerals
- a first invention of a first group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulation layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board characterized by containing an inorganic filler.
- the solder resist layer contains an inorganic filler
- the solder resist layer has a coefficient of thermal expansion due to the inorganic filler. And the difference in the coefficient of linear expansion from the surrounding interlayer resin insulation layer and the underfill becomes small.As a result, the manufacturing process of the multilayer printed wiring board or the IC chip or the like on the manufactured multilayer printed wiring board is reduced. It is possible to prevent cracks in the solder resist layer after the electronic component is mounted, and prevent peeling between the solder resist layer and another layer.
- the inorganic filler has a linear expansion coefficient of the resin constituting the solder resist layer. Therefore, when the solder-resist layer expands due to heat and a large internal stress is generated in the solder-resist layer due to the difference in linear expansion coefficient from the underfill or the interlayer resin insulation layer, etc. It will play a moderating role. As described above, as a result of relieving the internal stress of the solder resist layer by the inorganic filler, it is possible to prevent cracks and peeling from occurring in the solder resist layer.
- the inorganic filler examples include, but are not particularly limited to, an aluminum compound, a calcium compound, a potassium compound, a magnesium compound, a silicon compound, and the like. These compounds may be used alone or in combination of two or more.
- Examples of the aluminum compound include alumina and aluminum hydroxide, and examples of the calcium compound include calcium carbonate and calcium hydroxide.
- Examples of the potassium compound include potassium carbonate.
- Examples of the magnesium compound include magnesia, dolomite, and basic magnesium carbonate.
- Examples of the silicon compound include silica and Zeolite and the like.
- the shape of the inorganic filler is not particularly limited, examples thereof include a spherical shape, an elliptical spherical shape, and a polyhedral shape. Among them, a spherical shape, an elliptical spherical shape, and the like are desirable because a sharp point tends to cause cracks.
- the size of the inorganic filler is desirably such that the length (or diameter) of the longest part is in the range of 0.1 to 5.0 ⁇ m. If it is less than 0, it is difficult to relieve the internal stress generated when the solder resist layer thermally expands, and the coefficient of thermal expansion cannot be adjusted. If it exceeds 5. ⁇ ⁇ , the solder resist layer itself becomes hard and brittle. In addition, when performing photo-curing or thermal curing, the inorganic filler inhibits the reaction between the resins, and as a result, cracks are likely to occur. From such a point, a transparent inorganic filler is more preferable.
- the amount is 3-5 0 weight.
- the range of / 0 is preferred. If it is less than 3% by weight, the thermal expansion coefficient of the solder resist layer may not be sufficiently reduced, while if it exceeds 50% by weight, the resolution may decrease.
- the opening may be abnormal. More preferably, it is 5 to 40% by weight.
- the content of the inorganic filler in the solder resist layer is preferably 5 to 40% by weight.
- This linear expansion coefficient of the composite of the resin or resins constituting the solder resist layer is usually, 6 0 X 1 0 ⁇ 8 0 X 1 0- 6 K- 1 with high, the inorganic into this layer by containing the full Ira one, because it is possible to lower the coefficient of linear expansion up to 4 0 ⁇ 5 0 X 1 1 about.
- sea-island structure refers to a state in which one elastomer component is dispersed in an “island” shape in the “sea” made of a solder resist composition other than the elastomer component.
- elastomer examples include natural rubber, synthetic rubber, thermoplastic resin, and thermosetting resin.
- elastomers made of thermosetting resin can sufficiently reduce stress.
- thermosetting resin examples include polyester-based elastomer, styrene-based elastomer, vinylinole chloride-based elastomer, fluorine-based elastomer, amide-based elastomer, and olefin-based elastomer.
- the solder resist layer constituting the multilayer printed wiring board of the first invention of the first group of the present invention may be, for example, a thermosetting resin, a thermoplastic resin, or a thermosetting resin, in addition to the inorganic filler and the elastomer. And a thermoplastic resin and the like.
- Examples of such a resin layer include a (meth) acrylate of a novolak type epoxy resin, a bifunctional (meth) acrylate monomer, and a (meth) acrylate having a molecular weight of about 500 to 500,000.
- Polymer thermosetting resin such as bisphenol type epoxy resin, and photosensitive monomer such as polyacrylic monomer
- examples of the composition include those obtained by polymerizing and curing the composition.
- the bifunctional (meth) acrylic acid ester monomer is not particularly limited, and examples thereof include esters of acrylic acid or methacrylic acid of various diols. 604, PM2, PM21 and so on.
- Examples of the (meth) acrylates of the novolak type epoxy resin include epoxy resins obtained by reacting phenolic phenolic phenolic phenolic phenolic phenol glycidinoleate with atalinoleic acid methacrylic acid and the like. A method for manufacturing such a multilayer printed wiring board will be described later.
- a first group of solder resist compositions according to the second invention of the present invention is a first group of solder resist compositions used for producing the multilayer printed wiring board of the first invention of the present invention
- an inorganic filler is compounded in a paste containing a solder resist resin.
- the compounding amount is preferably such that the content ratio in the formed solder-resist layer is 5 to 20% by weight.
- the first group of the solder resist composition of the second invention of the present invention further comprises, in addition to the above-mentioned inorganic filler, a (meth) acrylate of the novolak-type epoxy resin, an imidazole curing agent, a bifunctional ( (Meth) Acrylic acid ester monomer, Polymer of (meth) acrylic acid ester having a molecular weight of about 500 to 500, Thermosetting resin composed of bisphenol type epoxy resin, etc., Photosensitivity of polyacrylic monomer, etc. It is desirable that the fluid be a paste-like fluid containing a reactive monomer, a dalicol ether-based solvent, and the like, and that its viscosity is adjusted to 25 to 1 to 10 Pa ⁇ s.
- the imidazole curing agent is not particularly limited, but it is preferable to use an imidazole curing agent that is liquid at 25 ° C. This is because it is difficult to uniformly knead the powder, and the liquid can be kneaded more uniformly.
- a liquid imidazole curing agent include 1-benzyl-12-methylimidazole (1B2MZ, manufactured by Shikoku Chemicals), 1-cyanoethyl-2-ethyl 4-methylimidazole (manufactured by Shikoku Chemicals, 2E4MZ—CN), 4-methyl-2-ethylimidazole (2E4MZ, manufactured by Shikoku Chemicals) and the like.
- glycol ether solvent for example, a solvent having a chemical structure represented by the following general formula (1) is desirable, and is specifically selected from diethylene glycol dimethyl ether (DMDG) and triethylene glycol dimethyl ether (DMTG). It is more desirable to use at least one. This is because these solvents can completely dissolve the polymerization initiators benzophenone, michlaketone, and ethylaminobenzophenone by heating at about 30 to 50 ° C. CH 3 O— (CH 2 CH 2 O) n -CH 3 ⁇ ⁇ ⁇ (1)
- n is an integer of 1 to 5.
- solder resist layer is formed using such a solder resist composition
- a solder resist composition first, in a step described later, a plurality of conductive circuits and interlayer resin insulating layers are formed, and a substrate on which a conductive circuit is formed on the uppermost layer is formed. Then, after applying a paste having the above composition by a roll coater method or the like, the paste is dried, or the solder resist composition is formed into a film, and the film is pressed. Thereafter, an opening for forming a solder bump is formed in a portion of the solder resist layer corresponding to a predetermined position of the lower conductive circuit, and a solder resist layer is formed by performing a hardening process as necessary.
- a method of manufacturing a multilayer printed wiring board according to a third invention of the first group of the present invention is a multilayer printed wiring board in which a conductor circuit and a resin insulating layer are sequentially laminated on a substrate, and a solder resist layer is formed on an outermost layer.
- a method of manufacturing a plate comprising:
- the present invention is characterized in that a first group of the solder resist compositions of the second invention of the present invention is used.
- a resin substrate is desirable. Specifically, for example, glass Epoxy substrates, polyester substrates, polyimide substrates, bismaleimid triazine resin substrates, thermosetting polyphenylene ether substrates, fluororesin substrates, ceramic substrates, copper-clad laminates, RCC substrates, and the like.
- a through hole may be provided in the insulating substrate.
- the through-hole is desirably formed using a drill having a diameter of 100 to 300 m, a laser beam, or the like.
- a conductive circuit-shaped etching resist is formed on the substrate, and the conductive circuit is formed by performing etching. Copper plating is desirable for electroless plating.
- a through-hole for a through-hole is formed in an insulating substrate, the wall of the through-hole for the through-hole is simultaneously subjected to electroless plating to form a through-hole. The connection may be made electrically.
- a roughening process is usually performed on the surface of the electroless plating layer and the inner wall of the through hole when the through hole is formed.
- the roughening treatment include blackening (oxidation) and monoreduction, spraying with a mixed aqueous solution of an organic acid and a cupric complex, and treatment with a Cu—Ni—P needle-like alloy.
- the organic acid includes, for example, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, acrylic acid, crotonic acid, oxalic acid , Malonic acid, succinic acid, glutaric acid, maleic acid, benzoic acid, glycolic acid, lactic acid, malic acid, sulfamic acid and the like.
- the content of the organic acid is desirably 0.1 to 30% by weight. This is because the solubility of the oxidized copper can be maintained and the catalyst stability can be ensured.
- cupric complex a cupric complex of an azole is desirable.
- This cupric complex of azoles acts as an oxidizing agent for oxidizing metallic copper and the like.
- azoles For example, diazole, triazole, tetrazole and the like can be mentioned. Of these, imidazole, 2-methylimidazole, 2-ethylimidazonole, 2-ethyl-14-methinoreimidazonole, 2-phenylimidazonole, and 2-phenyldecidimidazole are preferred.
- the content of the cupric complex is preferably 1 to 15% by weight. This is because it is excellent in solubility and stability, and can also dissolve noble metals such as Pd constituting the catalyst core.
- Specific methods for the above plating treatment include copper sulfate (l-40 g / l), nickel sulfate (0:!-6.0 g / l), cunic acid (10-20 g, l). , Sodium hypophosphite (10-100 g_l), boric acid (10-40 gZl) and surfactant (Sushinol 465, manufactured by Nissin Chemical Co., Ltd.) (0.01-:! OgZl)
- a method of performing electroless plating in an electroless plating bath having a pH of 9 may be used.
- a resin filler is filled into the through hole.
- a resin filler is filled into the concave portion where the lower conductive circuit of the insulating substrate surface is not formed, and thereafter, the surface of the insulating substrate may be flattened by polishing or the like. .
- the resin filler When the resin filler is filled in the through hole, the resin filler is dried, for example, under conditions of 100 ° C. for 20 minutes and then cured.
- Curing is preferably carried out at a temperature between 50 and 250 ° C.
- a temperature between 50 and 250 ° C.
- step hardening may be performed by sequentially changing the temperature from a low temperature to a high temperature and then hardening.
- the lower conductor circuit When the surface of the conductor layer is flattened by polishing, the lower conductor circuit may be subjected to another roughening treatment as necessary.
- the roughening treatment method include blackening (oxidation) monoreduction treatment, spray treatment with a mixed aqueous solution of an organic acid and a cupric complex, treatment with Cu—Ni—P alloy plating, and the like.
- a layer of a resin composition is formed on the substrate on which the conductive circuit is formed, and an opening for a via hole and a through hole as necessary are formed in the layer of the resin composition to form an interlayer.
- a resin insulating layer is formed.
- Examples of the material of the interlayer resin insulating layer include a resin composition for forming a roughened surface, and polyphenylene. Ether resins, polyolefin resins, fluororesins, thermoplastic elastomers, and the like.
- the layer of the resin composition may be formed by applying an uncured resin, or may be formed by thermocompression bonding of an uncured resin film. Further, a resin film in which a metal layer such as a copper foil is formed on one surface of the uncured resin film may be attached.
- soluble particles particles that are soluble in an acid or an oxidizing agent
- a resin that is hardly soluble in an acid or an oxidizing agent hereinafter, referred to as a hardly soluble resin. Dispersed materials may be mentioned.
- the soluble particles include resin particles soluble in an acid or an oxidizing agent (hereinafter referred to as “soluble resin particles”), inorganic particles soluble in an acid or an oxidizing agent (hereinafter referred to as “soluble inorganic particles”), and soluble in an acid or an oxidizing agent.
- soluble resin particles resin particles soluble in an acid or an oxidizing agent
- soluble inorganic particles inorganic particles soluble in an acid or an oxidizing agent
- Metal particles hereinafter referred to as “soluble metal particles”. These soluble particles may be used alone or in combination of two or more.
- the shape (particle size, etc.) of the soluble particles is not particularly limited, but (a) soluble particles having an average particle size of 10 / m or less, and (b) soluble particles having an average particle size of 2 ⁇ m or less are aggregated.
- Agglomerated particles (c) a mixture of soluble particles having an average particle size of 2 to 1 Q / zm and soluble particles having an average particle size of 2 ⁇ m or less, (d) an average particle size of 2 to 10 ⁇ m Pseudo particles obtained by adhering at least one of a heat-resistant resin powder and an inorganic powder having an average particle size of 2 ⁇ m or less to the surface of the soluble particles of (e); A mixture of soluble particles of 8 / im with soluble particles having an average particle size of more than 0.8 m and less than 2 ⁇ ,
- the soluble resin particles include those made of a thermosetting resin, a thermoplastic resin, and the like. When the soluble resin particles are immersed in a solution containing an acid or an oxidizing agent, they have a higher dissolution rate than the hardly soluble resin. It is not particularly limited.
- the soluble resin particles include, for example, an epoxy resin, a fuynol resin, a polyimide resin, a polyphenylene resin, a polyolefin resin, a fluororesin, A resin composed of an amino resin (a melamine resin, a urea resin, a guanamine resin) or the like.
- the resin may be composed of one of these resins, or may be composed of a mixture of two or more resins. Is also good.
- the soluble resin particles resin particles made of rubber can also be used.
- the rubber include polybutadiene rubber, various modified polybutadiene rubbers such as epoxy-modified, urethane-modified, (meth) acrylonitrile-modified, and (meth) acrylonitrile-butadiene rubber containing a carboxyl group.
- the soluble resin particles are easily dissolved in an acid or an oxidizing agent.
- an acid other than a strong acid can be dissolved, and when dissolving the soluble resin particles using an oxidizing agent, permanganese having a relatively weak oxidizing power is used. It can also dissolve in acids.
- Examples of the soluble inorganic particles include at least one particle selected from the group consisting of an aluminum compound, a calcium compound, a potassium compound, a magnesium compound, and a silicon compound.
- Examples of the aluminum compound include alumina and aluminum hydroxide, and examples of the calcium compound include calcium carbonate and calcium hydroxide.
- Examples of the potassium compound include potassium carbonate and the like.
- Examples of the magnesium compound include magnesia, dolomite, and basic magnesium carbonate, and examples of the silicon compound include silica and zeolite. These may be used alone or in combination of two or more.
- the soluble metal particles include particles made of at least one selected from the group consisting of copper, nickel, iron, zinc, lead, gold, silver, aluminum, magnesium, calcium, and silicon. These soluble metal particles may have a surface layer coated with a resin or the like in order to ensure insulation.
- the combination of the two types of soluble particles to be mixed is preferably a combination of resin particles and inorganic particles. Both have low electrical conductivity, so the insulation of the resin film can be ensured, and the thermal expansion can be easily adjusted with the poorly soluble resin, and cracks occur in the interlayer resin insulation layer formed using the resin film. This is because no peeling occurs between the interlayer resin insulating layer and the conductor circuit.
- the hardly soluble resin is not particularly limited as long as it can maintain the shape of the roughened surface when the roughened surface is formed by using an acid or an oxidizing agent in the interlayer resin insulating layer. Resins, thermoplastic resins, and composites thereof. Further, a photosensitive resin obtained by imparting photosensitivity to these resins may be used.
- thermosetting resin those containing a thermosetting resin are desirable. Thereby, the shape of the roughened surface can be maintained even by the plating solution or various heat treatments.
- thermosetting resin examples include an epoxy resin, a phenol resin, and a polyimide resin.
- photosensitized resin include a resin obtained by subjecting a thermosetting group to an acrylation reaction between methacrylic acid / acrylic acid and the like.
- an epoxy resin having two or more epoxy groups in one molecule is more desirable.
- Examples of the epoxy resin include cresol nopolak type epoxy resin, bisphenol A type epoxy resin, bisphenol F type epoxy resin, phenol novolak type epoxy resin, alkylphenol novolak type epoxy resin, biphenol F type epoxy resin, and naphthalene type.
- Examples include epoxy resins, dicyclopentadiene-type epoxy resins, epoxidized products of condensates of phenols and aromatic aldehydes having a phenolic hydroxyl group, triglycidyl isocyanurate, and alicyclic epoxy resins. These may be used alone or in combination of two or more. Thereby, it becomes excellent in heat resistance and the like.
- thermoplastic resin examples include polyethersulfone (PES), polysnorrefon (PSF), polyphenylenesnorefon (PPS), polyphenylene sulfide (PPES), polyphenylene ether (PPE), and polyetherate. Louismid (PI), phenoxy resin, fluororesin and the like.
- thermosetting resin thermoplastic resin 95/5 to 5050. This is because a high toughness value can be secured without impairing the heat resistance.
- the mixing weight ratio of the soluble particles is preferably from 5 to 50% by weight, more preferably from 10 to 40% by weight, based on the solid content of the hardly-soluble resin.
- the soluble particles in the resin film are substantially uniformly dispersed in the poorly soluble resin. It is possible to form a roughened surface with unevenness of uniform roughness.Even if a via hole or through hole is formed in the resin film, the adhesion of the metal layer of the conductor circuit formed on it can be secured. Because you can. Further, a resin film containing soluble particles only in the surface layer forming the roughened surface may be used. Thereby, since the portions other than the surface layer portion of the resin film are not exposed to the acid or the oxidizing agent, the insulation between the conductor circuits via the interlayer resin insulating layer is reliably maintained.
- the amount of the soluble particles dispersed in the poorly soluble resin is 3 to 40% by weight based on the resin film. / 0 is desirable. If the amount of the soluble particles is less than 3% by weight, a roughened surface having desired irregularities may not be formed. If the amount exceeds 40% by weight, the soluble particles may be dissolved using an acid or an oxidizing agent. In addition, the resin film may be melted to a deep portion, and the insulation between the conductor circuits via the interlayer resin insulation layer formed using the resin film may not be maintained, which may cause a short circuit.
- the resin film may contain a curing agent, a solvent, other components, and the like, if necessary, in addition to the soluble particles and the hardly-soluble resin.
- the polyphenylene ether resin is not particularly limited, and examples thereof include polyphenylene oxide (PPO), polyphenylene ether (PPE), and the like.
- PPO polyphenylene oxide
- PPE polyphenylene ether
- the polyolefin resin include polyethylene, polypropylene, polyisobutylene, polybutadiene, polyisoprene, cycloolefin resin, and copolymers of these resins.
- the dielectric constant and dielectric loss tangent are low, signal delay and signal error are unlikely to occur even when using a high-frequency signal in the GHz band, and the mechanical properties such as rigidity are also excellent. Cycloolefin resins are preferred.
- cycloolefin resin a homopolymer or copolymer of a monomer comprising 2-norbornene, 5-ethylidene-12-norbornene or a derivative thereof is desirable.
- the derivative include a derivative in which an amino group for forming a crosslink, a maleic anhydride residue, or a maleic acid-modified derivative is bonded to a cycloolefin such as 2-norbornene.
- Examples of the monomer for synthesizing the copolymer include ethylene and propylene.
- the cycloolefin resin may be a mixture of two or more of the above resins, or may include a resin other than the cycloolefin resin.
- the cycloolefin resin when it is a copolymer, it may be a block copolymer or a random copolymer.
- the cycloolefin resin is a thermosetting cycloolefin resin. This is because by forming a bridge by heating, the rigidity is increased and the mechanical properties are improved.
- the glass transition temperature (Tg) of the cycloolefin resin is desirably 130 to 200 ° C.
- cycloolefin-based resin those already formed as a resin sheet (film) may be used, and a monomer or a low-molecular-weight polymer having a certain molecular weight is dispersed in a solvent such as xylene or cyclohexane. It may be in the state of a cured uncured solution.
- RCC RESON COATED COP PER: copper foil with resin
- the cycloolefin resin may not contain a filler or the like, It may contain flame retardants such as aluminum hydroxide, magnesium hydroxide, and phosphate esters.
- fluororesin examples include ethyl tetrafluoroethylene copolymerized resin (ETFE), polychloromouth trifluoroethylene (PCTFE), and the like.
- thermoplastic elastomer resin is not particularly limited. Examples thereof include styrene-based thermoplastic elastomers, olefin-based thermoplastic elastomers, urethane-based thermoplastic elastomers, polyester-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers. Examples thereof include thermoplastic elastomers, 1,2-polybutadiene-based thermoplastic elastomers, PVC-based thermoplastic elastomers, and fluorine-based thermoplastic elastomers. Of these, an olefinic thermoplastic elastomer, a fluorine-based thermoplastic elastomer, is desirable because it can be used for electrical characteristics.
- the interlayer resin insulating layer is formed by attaching the above resin film
- the interlayer resin insulating layer is formed using a device such as a vacuum laminator under a reduced pressure or a vacuum under a pressure of 0.2 to 1.0 MPa. Pressure, 60 to: It is preferable to perform the pressure bonding at a temperature of 120, and then to heat-set the resin film.
- the heat curing may be performed after forming a via hole opening and a through hole described later.
- an interlayer resin insulating layer is formed by forming a via hole opening and, if necessary, a through hole in the resin composition layer.
- the via hole opening is formed by laser processing or the like.
- an opening for a via hole may be provided by performing exposure and development.
- the laser light used for example, a carbon dioxide gas (C 0 2 ) laser, an ultraviolet laser, an excimer laser and the like can be mentioned, and among these, an excimer laser and a short-pulse carbon dioxide laser are desirable. .
- the excimer laser can form a large number of via hole openings at once by using a mask or the like in which through holes are formed in portions where via hole openings are formed, as described later. Carbon dioxide laser This is because there is little damage to the resin around the opening.
- the hologram method is a method of irradiating a target object with a laser beam through a hologram, a condensing lens, a laser mask, a transfer lens, or the like. Thus, a large number of openings can be efficiently formed.
- the pulse interval is desirably 1 0-1 0 8 seconds.
- the time for irradiating the laser for forming the opening is preferably 10 to 500 ⁇ s.
- the through hole of the mask in which the through hole is formed in the portion where the hole for the via hole is formed needs to be a perfect circle in order to make the spot shape of the laser beam a perfect circle. Is preferably about 0.1 to 2 mm.
- desmearing is preferably performed.
- the desmear treatment can be performed using an oxidizing agent composed of an aqueous solution such as chromic acid or permanganate.
- the oxygen plasma may be treated with CF 4 and mixed plasma or corona discharge or the like of oxygen.
- the surface can also be modified by irradiating ultraviolet rays using a low-pressure mercury lamp.
- a through-hole is formed in the substrate on which the resin composition layer is formed, the through-hole is formed using a drill having a diameter of 50 to 300 / m, a laser beam, or the like.
- Examples of the acid include sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid, and formic acid.
- Examples of the oxidizing agent include chromic acid, chromic sulfuric acid, and permanganates such as sodium permanganate.
- a catalyst is applied to the formed roughened surface, if necessary.
- the catalyst include palladium chloride.
- plasma treatment with oxygen, nitrogen or the like ⁇ dry treatment such as corona treatment is performed to remove the residue of the acid or oxidizing agent and to remove the surface of the interlayer resin insulating layer.
- a thin-film conductor layer made of tin, zinc, copper, nickel, cobalt, thallium, lead or the like is formed on the formed interlayer resin insulating layer by electroless plating, sputtering, or the like.
- the above-mentioned thin film conductor layer may be a single layer, or may be composed of two or more layers.
- a thin film conductor layer made of copper, copper, and nickel is desirable in consideration of electrical characteristics, economy, and the like.
- a thin film conductor layer made of metal is also formed on the inner wall surface of the through hole in this step, so that the through hole can be formed.
- a through hole is formed in the above step (6), it is desirable to perform the following processing steps. That is, the surface of the electroless plating layer and the inner wall of the through hole are blackened (oxidized) by mono-reduction treatment, spray treatment with a mixed aqueous solution of an organic acid and a cupric complex, and plating of a Cu—Ni—P needle-like alloy A roughening process is performed using a process or the like. Thereafter, the inside of the through hole is further filled with a resin filler or the like, and then the surface layer of the resin filler and the surface of the electroless plating layer are flattened by a polishing treatment method such as puff polishing. .
- electroless plating is performed, and the thin film conductor layer made of metal already formed is filled with resin.
- a cover plating layer is formed on the through holes.
- a plating resist is formed on a part of the interlayer resin insulating layer using a dry film, and thereafter, the thin film conductor layer is used as a plating lead, and electric plating is performed. An electroplating layer is formed on the non-formed portion.
- the via hole opening may be filled with electric plating to form a field via structure.
- a lid covering layer is formed thereon to form a field via structure. Is also good.
- the plating resist is peeled off, and the thin-film conductor layer made of metal existing under the plating resist is removed by etching to form an independent conductor circuit. It is desirable to use copper plating as the electrical plating.
- the etchant include a sulfuric acid-hydrogen peroxide aqueous solution, an aqueous solution of persulfate such as ammonium persulfate, sodium persulfate, persulfate rim, an aqueous solution of ferric chloride, cupric chloride, etc., hydrochloric acid, nitric acid, heat And dilute sulfuric acid.
- a roughened surface may be formed at the same time as etching between conductor circuits using an etching solution containing the above-described cupric complex and an organic acid.
- the catalyst on the interlayer resin insulating layer may be removed using an acid or an oxidizing agent.
- metal such as palladium used for the catalyst is eliminated, so that it is possible to prevent a decrease in electric characteristics.
- solder resist layer is formed on the substrate on which the outermost conductive circuit is formed.
- the above-mentioned solder resist layer is formed by applying the above-mentioned solder-resist composition by a roll coater method, or by forming a resin film of the above-mentioned solder resist composition and then thermocompression bonding the resin film, and then exposing and developing. Processing, laser processing, etc. It is formed by performing an opening process and further performing a hardening process and the like.
- solder paste is applied to the IC chip connection surface.
- Solder bumps are formed by printing, and solder balls, pins, and the like are arranged on the connection surface of the external board, thereby completing the manufacture of the multilayer printed wiring board.
- a conventionally known method can be used as a method of disposing the solder balls and pins.
- a plasma treatment with oxygen, carbon tetrachloride, or the like may be performed as needed for a character printing step for forming product recognition characters or the like or for modifying the solder resist layer.
- a plasma treatment with oxygen, carbon tetrachloride, or the like may be performed as needed for a character printing step for forming product recognition characters or the like or for modifying the solder resist layer.
- a first group of multilayer printed wiring boards according to the first invention of the present invention can be manufactured.
- the first invention of the second group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board characterized by containing one elastomer component.
- the solder resist layer contains an elastomer component
- the solder resist layer is formed by the flexibility and rebound resilience of the elastomer. Even when a stress acts on the solder resist layer, the stress can be absorbed or relieved.
- the manufacturing process of the multilayer printed wiring board and the electronic components such as IC chips on the manufactured multilayer printed wiring board can be performed. It is possible to suppress the occurrence of cracks and peeling in the solder resist layer after mounting, and it is possible to prevent the cracks from growing too large even when cracks occur.
- elastomer component used in the first invention of the second group of the present invention examples include natural rubber, synthetic rubber, thermoplastic resin, thermosetting resin and the like.
- thermosetting resins can absorb or relieve stress sufficiently.
- Elastomer These elastomer components may be used alone or in combination of two or more.
- Examples of the elastomer composed of the above-mentioned thermosetting resin include, for example, polyester-based elastomer, styrene-based elastomer, chloride-based elastomer, fluorine-based elastomer, amide-based elastomer, and olefin-based elastomer. And the like.
- the shape of the elastomer component is not particularly limited, but a spherical shape, an elliptical spherical shape, or the like is preferable because of its excellent effect of absorbing and relaxing stress.
- the size of the elastomer component is not particularly limited, but the length (or diameter) of the longest part is preferably in the range of 0.5 to 1.5 m. If the size of the above-mentioned elastomer component is less than 0.5 // m, it becomes difficult to relax or absorb the stress, and cracks are likely to occur, and if it exceeds 1.5 / zm, the resolution will increase. This is because the degree falls.
- the elastomer component is microphase-separated so as to have a sea-island structure after curing of the solder-resist layer. This is because dispersing the elastomer component in this manner is most suitable for obtaining the effect of absorbing and relaxing stress by the elastomer component.
- Content of the elastomer one component of the solder resist layer is 1 to 2 0 weight 0/0 is preferred. If the content is less than 1% by weight, it is difficult to relieve or absorb the stress and cracks are likely to occur, and if it exceeds 20% by weight, the resolution is reduced.
- the solder resist layer contains an inorganic boiler in addition to the elastomer component.
- the addition of the inorganic filler allows the solder resist layer and other layers (interlayer resin insulation) to be mixed for the same reason as described in the first group of the multilayer printed wiring board of the first invention of the present invention. This is because the linear expansion coefficient can be matched with that of the layer, etc., so that the occurrence of peeling and cracking due to the difference in linear expansion coefficient can be further prevented.
- the inorganic filler is not particularly limited, for example, aluminum foil Palladium compounds, calcium compounds, potassium compounds, magnesium compounds, silicon compounds and the like. Specifically, those similar to those used for the multilayer printed wiring board of the first invention of the first invention can be mentioned. These may be used alone or in combination of two or more.
- the content of the inorganic filler in the solder resist layer is preferably 5 to 20% by weight.
- the solder resist layer constituting the multilayer printed wiring board of the first invention of the second group of the present invention may be formed of, for example, a thermosetting resin, a thermoplastic resin, or a thermosetting resin in addition to the inorganic filler and the elastomer. And a composite of a thermoplastic resin and a thermoplastic resin. Specific examples thereof include a solder resist layer constituting the multilayer printed wiring board according to the first invention of the first group. And the like are included.
- a second group of the solder resist composition of the second invention of the present invention will be described.
- a second group of the solder resist composition according to the second invention of the present invention is characterized in that an elastomer component is blended in a paste containing a resin for a solder resist layer.
- the compounding amount is preferably such that the content ratio in the solder resist composition is 5 to 10% by weight.
- the second group of the solder resist composition according to the second invention of the present invention includes, in addition to the elastomer component and the inorganic filler, (meth) acrylate of the novolak-type epoxy resin, an imidazole curing agent, and bifunctional ( (Meth) Acrylic ester monomer-Polymer of (meth) acrylic ester having a molecular weight of about 50,000 to 500, thermosetting resin composed of bisphenol-type epoxy resin, etc., photosensitivity of polyvalent acrylic monomer, etc. It is preferably a paste-like fluid containing a conductive monomer, a glycol ether-based solvent, and the like, and its viscosity at 25 ° C is desirably adjusted to 1 to 10 Pa ⁇ s.
- the imidazole curing agent and the dalicol ether-based solvent include those similar to the solder resist composition of the first invention of the second invention of the first group.
- solder resist layer is formed using such a solder resist composition
- a substrate in which a plurality of conductive circuits and interlayer resin insulating layers are formed, and a conductive circuit is formed in the uppermost layer is prepared.
- a paste having the above composition is applied by a roll coater method or the like, and dried.
- an opening for forming a solder bump is formed in a portion of the solder resist layer corresponding to a predetermined position of a lower conductive circuit, and a solder resist layer is formed by performing a hardening process if necessary.
- a method of manufacturing a multilayer printed wiring board according to a third invention of the second group comprises a multilayer printed wiring board in which a conductor circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer.
- a method of manufacturing a plate comprising:
- the present invention is characterized in that the solder resist composition of the second invention of the second invention is used.
- a solder resist composition of the second invention of the second group of the present invention is applied to the above-mentioned method, that is, a solder resist composition is applied, or a film made of the solder resist composition is pressure-bonded. After that, an opening process such as an exposure development process is performed, and a curing process is further performed to form a solder resist layer.
- a multilayer printed wiring board is manufactured in the same manner as the manufacturing steps (10) and (11) in the method for manufacturing a multilayer printed wiring board according to the third invention of the first group of the present invention.
- a second group of multilayer printed wiring boards according to the first invention of the present invention can be manufactured.
- a first invention of a third group of the invention is a multilayer printed wiring board in which a conductor circuit and a resin insulation layer are sequentially formed on a substrate, and a solder-resist layer is formed on an outermost layer, wherein the solder resist
- the dielectric constant of the layer at 1 GHz is less than 3.0.
- the feature is a multilayer printed wiring board.
- the dielectric constant of the solder resist layer is as low as 3.0 or less, a high frequency signal in the GHz band is used. Even in this case, it is possible to prevent a signal error due to a signal propagation delay or a signal transmission loss occurring in the solder resist layer.
- solder resist layer having a low dielectric loss tangent when used, in addition to the above characteristics, even when the distance between the solder bumps is reduced, the solder resist layer is generated regardless of the number of external terminal pads. It is possible to prevent signal errors due to signal transmission loss and the like.
- the difference in thermal expansion coefficient between the solder resist layer and the interlayer resin insulating layer is small. The occurrence of cracks and peeling can be prevented.
- the dielectric constant at 1 GHz of the solder resist layer is 3.0 or less.
- the dielectric loss tangent at 1 GHz of the solder resist layer is preferably 0.01 or less.
- the solder resist layer having a low dielectric constant and a low dielectric loss tangent as described above includes a polyolefin resin, a polyphenylene ether and a fluorine resin. It is desirable that the resin should contain at least one selected from the group consisting of resins.
- polystyrene-based resin examples include, for example, polyethylene, polypropylene, polyisobutylene, polybutadiene, polyisoprene, cycloolefin-based resin, and copolymers of these resins.
- thermoplastic polyolefin resins having a melting point of 200 ° C or higher include, for example, TPX (Mixing point: 240 ° C) manufactured by Mitsui Petrochemical Industries, and Idemitsu Petrochemical Co., Ltd. Name: SPS (melting point: 270 ° C) and the like.
- cyclolefin has a low dielectric constant and a low dielectric loss tangent, is less likely to cause signal delay and signal error even when a high frequency signal in the GHz band is used, and has excellent mechanical properties such as rigidity.
- a system resin is desirable.
- the cycloolefin resin is preferably a homopolymer or a copolymer of a monomer comprising 2-norbornene, 5-ethylidene-12-norbornene or a derivative thereof.
- the derivative include a derivative in which an amino group for forming a crosslink, a maleic anhydride residue or a maleic acid-modified residue is bonded to cyclofluorfin such as 2-norbornene.
- Examples of the monomer for synthesizing the copolymer include ethylene and propylene.
- the cycloolefin resin may be a mixture of two or more of the above resins, or may include a resin other than the cycloolefin resin.
- the cycloolefin resin when it is a copolymer, it may be a block copolymer or a random copolymer.
- the cycloolefin resin is a thermosetting cycloolefin resin. This is because by forming a bridge by heating, the rigidity is increased and the mechanical properties are improved.
- the glass transition temperature (Tg) of the cycloolefin resin is desirably 130 to 200 ° C.
- cycloolefin-based resin those already formed as a resin sheet (film) may be used, and a monomer or a low-molecular-weight polymer having a certain molecular weight is dispersed in a solvent such as xylene or cyclohexane. It may be in the state of a cured uncured solution.
- RCC RE SIN COATED COP PER: resin coated copper foil
- the cycloolefin resin may not contain a filler or the like, or may contain a flame retardant such as aluminum hydroxide, magnesium hydroxide, or a phosphate.
- the polyolefin resin used for the solder resist layer is usually transparent. Therefore, if the polyolefin resin is used as it is for the solder resist layer, the conductor circuit or target mark of the inner layer may be read incorrectly when mounting and cutting into individual pieces. It is desirable to color the polyolefin resin forming the resist layer in green or dark blue. In this way, the alignment marks on the inner layer and the surface layer of the multilayer printed wiring board can be determined.
- the resin constituting the resin insulation layer of the multilayer printed wiring board according to the first invention of the third group of the invention include polyolefin-based resins, polyphenylene-based resins (PPE, PPO, etc.), fluorine-based resins, and the like. Is desirable.
- polyolefin resin examples include the above-mentioned polyethylene and polypropylene
- fluorine resin examples include ethyl Z-tetrafluoroethylene copolymer resin (ETFE) and polychlorinated trifluoroethylene (PCTFE). Is mentioned.
- the dielectric constant and the dielectric loss tangent of the entire multilayer printed wiring board can be reduced, and signal delay and signal error hardly occur even when a high frequency signal in the GHz band is used.
- the coefficient of thermal expansion of the resin used for the resin insulating layer does not greatly differ from the coefficient of thermal expansion of the polyolefin resin used for the solder resist layer, peeling, cracks, and the like hardly occur. ,.
- a second invention of a third group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board made of a polyolefin-based resin.
- the solder resist layer since a polyolefin-based resin is used for the solder resist layer, a high frequency signal in the GHz band is used. However, it is possible to prevent a signal error due to a signal propagation delay or a signal transmission loss occurring in the solder resist layer. In addition, when a solder resist layer having a low dielectric constant is used, even when a high frequency signal in the GHz band is used, the signal propagation delay generated in the solder resist layer ⁇ the signal transmission loss Thus, it is possible to further prevent signal errors caused by the above.
- solder resist layer having a low dielectric loss tangent when used, in addition to the above characteristics, even when the distance between the solder bumps is reduced, the solder resist layer is generated regardless of the number of external terminal pads. It is possible to prevent signal errors due to signal transmission loss and the like.
- the difference in the coefficient of thermal expansion between the solder resist layer and the interlayer resin insulating layer is small. Therefore, occurrence of cracks and peeling can be prevented.
- the polyolefin resin used for the solder resist layer is not particularly limited, but the dielectric constant at 1 GHz is 3.0 or less. Things are desirable. By using such a material having a low dielectric constant, it is possible to prevent signal errors due to signal propagation delay, signal transmission loss, and the like.
- the above dielectric constant is desirably 2.4 to 2.7.
- the dielectric loss tangent at 1 GHz of the polyolefin-based resin used for the solder resist layer is desirably 0.01 or less.
- polystyrene-based resin examples include, for example, polyethylene, polypropylene, polyisobutylene, polybutadiene, polyisoprene, cycloolefin-based resin, and copolymers of these resins.
- Examples of the commercially available polyolefin-based resin include those similar to those used in the first invention of the third group of the present invention.
- the dielectric constant and the dielectric loss tangent are low, signal delay and signal error hardly occur even when a high frequency signal in the GHz band is used, and the mechanical characteristics such as rigidity are excellent.
- An orifice refining resin is desirable.
- the cycloolefin-based resin include the same cycloolefin resin used in the first invention of the third group of the present invention.
- the same resin as that used in the first invention of the third group of the present invention is desirable as the resin constituting the interlayer resin insulating layer of the multilayer printed wiring board of the second invention of the third group of the present invention. .
- the dielectric constant and the dielectric loss tangent of the entire multilayer printed wiring board can be reduced, similarly to the multilayer printed wiring board of the first invention of the third group of the present invention. Even when a high-frequency signal in the band is used, signal delay and signal error hardly occur. In addition, since the coefficient of thermal expansion of the resin used for the resin insulating layer does not greatly differ from the coefficient of thermal expansion of the polyolefin resin used for the solder resist layer, peeling cracks and the like are less likely to occur.
- the third group of multilayer printed wiring boards of the first and second inventions of the present invention is the same as that of the third group of the present invention except that a solder resist composition containing the above resin (polyolefin resin or the like) is used. It can be manufactured by the same method as the method for manufacturing a multilayer printed wiring board according to the invention.
- a solder resist composition containing the above resin polyolefin resin or the like
- it can be manufactured by the same method as the method for manufacturing a multilayer printed wiring board according to the invention.
- the third group of multilayer printed wiring boards of the present invention includes a polyolefin resin, a polyphenylene resin, and a fluorine resin as the material of the interlayer resin insulating layer. It is desirable to use a system resin. When forming an interlayer resin insulating layer using such a material, it is desirable to form an opening for a via hole by laser processing.
- a third invention of a third group of the invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer having solder bumps is formed on the uppermost layer. And an IC chip connected to the multilayer printed wiring board via the solder bumps,
- the semiconductor device is characterized in that the solder resist layer is made of a polyolefin resin, and the resin insulating layer is made of a polyolefin resin, a polyphenylene resin, or a fluorine resin.
- the polyolefin resin used in the solder resist layer of the semiconductor device of the third invention of the third group of the present invention is, for example, used for the multilayer printed wiring board of the first invention of the third group of the present invention.
- Examples thereof include the same as the polyolefin resin.
- the polyolefin resin is preferably a cycloolefin resin. This is because the dielectric constant and the dielectric loss tangent are low and the mechanical properties are excellent.
- the resin insulating layer of the semiconductor device of the third invention of the third group of the present invention is made of a polyolefin resin, a polyphenylene resin or a fluorine resin.
- a polyolefin resin By using such a resin, it is Rukoto reduce the dielectric constant and dielectric loss tangent of the entire multilayered printed circuit board, signal delay and signal errors does not occur easily even when using a high-frequency signal of GH Z band.
- the coefficient of thermal expansion of the resin used for the resin insulating layer does not greatly differ from the coefficient of thermal expansion of the polyolefin resin used for the solder resist layer, peeling, cracks, and the like hardly occur.
- the semiconductor device of the third invention of the third group of the present invention After manufacturing a multilayer printed wiring board having solder bumps by the above-described method, a predetermined number of solder resist layers on the solder resist layer having solder bumps are formed. Place the IC chip in the position of, and reflow the solder by heating, and connect the wiring of the printed wiring board and the IC chip. Subsequently, the printed wiring board to which the IC chip is connected is filled with an underfill, and resin sealing is performed, thereby completing the manufacture of the semiconductor device.
- the frequency of the IC chip 1 even GH Z or more high-frequency signal region due to the delay and the signal electrical transmission loss and the like of the signal propagation No signal error occurs.
- a fourth group of the first invention of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist
- the multilayer printed wiring board is characterized in that the dielectric tangent of the layer at 1 GHz is not more than 0.01.
- the dielectric tangent at 1 GHz of the solder resist layer is 0.01 or less, so that the solder resist layer It is possible to prevent a signal error due to a generated signal propagation delay or a signal transmission loss.
- a fourth group of the solder resist layers of the multilayer printed wiring board according to the first invention of the present invention has a dielectric loss tangent at 1 GHz of 0.01 or less.
- the dielectric constant at 1 GHz of the solder resist layer is desirably 3.0 or less.
- a fourth group of the multilayer printed wiring board according to the first invention of the present invention, wherein the solder resist layer having a low dielectric loss tangent and a low dielectric constant as described above comprises a polyphenylene ether resin, a polyolefin resin, and a fluorine resin. It is desirable that the material contains at least one selected from the group consisting of:
- polyphenylene ether resin examples include those similar to the polyphenylene ether used in the second multilayer printed wiring board of the present invention in a fourth group described in detail below.
- polyolefin-based resin examples include those similar to those used for the solder resist layer of the multilayer printed wiring board according to the first invention of the third group.
- fluorine-based resin examples include ethyl tetrafluoroethylene copolymer resin (ETFE), and polychloro mouth trifluoroethylene (PCTFE). It is.
- ETFE ethyl tetrafluoroethylene copolymer resin
- PCTFE polychloro mouth trifluoroethylene
- Examples of the resin used for the resin insulating layer of the multilayer printed wiring board of the present invention include a polyphenylene ether resin, a polyolefin resin, and a fluorine resin.
- Examples of the above polyphenylene ether resin include those similar to the polyphenylene ether resin used for the solder resist layer of the second invention of the fourth group of the present invention described in detail below.
- polyolefin-based resin and the fluorine-based resin examples include those similar to those used for the above-described solder resist layer.
- a second group of the second invention of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer, wherein the solder resist layer Is a multilayer printed wiring board characterized by comprising a polyphenylene ether resin.
- a polyphenylene ether resin is used for the solder resist layer, a high frequency signal in the GHz band is used. Even in this case, it is possible to prevent a signal error due to a signal propagation delay or a signal transmission loss occurring in the solder resist layer. Also, when a solder resist layer having a low dielectric loss tangent is used, even when a high-frequency signal in the GHz band is used, signal propagation delay or signal transmission loss generated in the solder resist layer is caused. Can be prevented from occurring.
- the polyphenylene ether resin used for the solder resist layer is not particularly limited. For example, a repeating unit represented by the following chemical formula (2) And a thermosetting polyphenylene ether resin having a repeating unit represented by the following chemical formula (3).
- n an integer of 2 or more.
- m represents an integer of 2 or more.
- R 1 and R 2 represent a methylene group, an ethylene group or one CH 2 — 0 _CH 2 —, and even if both are the same, Good or different.
- thermoplastic polyphenylene ether resin having a repeating unit represented by the above chemical formula (2) has a structure in which a methyl group is bonded to a benzene ring, but the polyphenylene ether which can be used in the present invention.
- the ether resin may be a derivative in which the above-mentioned methyl group is substituted by another alkyl group such as an ethyl group, or a derivative in which hydrogen of a methyl group is substituted by fluorine.
- polyphenylene ether resins may be used alone or in combination of two or more.
- thermosetting polyphenylene ether resin represented by the above chemical formula (3) is desirable from the viewpoint of increasing the mechanical properties.
- the polyphenylene ether resin preferably has a dielectric loss tangent at 1 GHz of 0.01 or less and a dielectric constant of 3.0 or less.
- polyphenylene ether resins including thermosetting polyphenylene ether resins
- ) is 0. 7 X 1 0- 3 ⁇ 1. decreases with about 0 X 1 0, are included in the above desirable range, also have a glass transition temperature of about 2 1 0 to 250 ° C
- the water absorption is as low as 0.05% or less, it is suitable for use as a solder resist layer.
- polyphenylene ether resin those already molded as a resin sheet (film) may be used, and a monomer or a low-molecular-weight polymer having a certain molecular weight may be used as an aromatic hydrocarbon such as xylene or toluene. It may be in the form of an uncured solution dispersed in a solvent such as a hydrogen-based solvent or cyclohexane.
- RCC REIN COATED CO PPER: copper foil with resin
- the resin used for the solder resist layer may be composed of only the above-mentioned polyphenylene ether resin, or may be a resin containing other components within a range that does not impair the low dielectric constant and low dielectric loss tangent. There may be.
- Examples of the resin used for the resin insulating layer of the multilayer printed wiring board according to the second invention of the fourth group include polyphenylene ether resin, polyolefin resin, fluorine resin and the like.
- Examples of the polyphenylene ether-based resin include those similar to the above-mentioned polyphenylene ether resin used for the solder-resist layer.
- Examples of the polyolefin-based resin and the fluorine-based resin include those similar to those used in the first invention of the fourth group of the present invention.
- a polyphenylene ether resin is desirable.
- the dielectric loss tangent and permittivity of the entire multilayer printed wiring board can be reduced, and signal delay and signal error can occur even when a high-frequency signal in the GHz band is used. It ’s hard to get up. Further, since the difference in the coefficient of thermal expansion between the interlayer resin insulating layer and the solder resist layer is small, cracks and peeling can be more reliably prevented.
- the fourth group of multilayer printed wiring boards of the first and second inventions of the present invention is the first group of the present invention except that a lens solder resist composition containing the above resin (polyphenylene ether resin) is used. It can be manufactured by using the method for manufacturing a multilayer printed wiring board according to the third invention. Further, in the production of the multilayer printed wiring board of the first and second inventions of the fourth group of the present invention, it is desirable to form an opening using a laser when forming a solder resist layer having an opening. . This is because a polyphenylene resin or the like is suitable for forming an opening using a laser.
- a material of the interlayer resin insulation layer As described above, in the production of the multilayer printed wiring board of the first and second inventions of the fourth group of the present invention, as a material of the interlayer resin insulation layer, a polyphenylene ether resin, a polyolefin resin, a fluorine-based resin is used. It is desirable to use a resin. When the interlayer resin insulating layer is formed by using such a material, it is desirable to form the opening for the via hole by laser processing.
- a fourth group of the third invention of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer having solder bumps is formed on an uppermost layer. And an IC chip connected to the multilayer printed wiring board via the solder bumps,
- the semiconductor device is characterized in that the solder resist layer is made of a polyphenylene ether resin, and the resin insulating layer is made of a polyphenylene ether resin, a polyolefin-based resin, or a fluorine-based resin.
- the polyphenylene ether resin used in the solder resist layer of the semiconductor device according to the third invention of the fourth group of the invention is the same as the polyphenylene ether resin used in the first invention of the fourth group of the invention. And the like.
- the above polyphenyrene As the one-ter resin, a thermosetting polyphenylene ether resin is desirable.
- the resin insulating layer of the semiconductor device according to the third invention of the fourth group is made of a polyphenylene ether resin, a polyolefin resin or a fluorine resin.
- a resin By using such a resin, the dielectric constant and the dielectric loss tangent of the entire multilayer printed wiring board can be reduced, and signal delay and signal error hardly occur even when a high frequency signal in the GHz band is used. ,.
- the coefficient of thermal expansion of the resin used for the resin insulating layer does not greatly differ from the coefficient of thermal expansion of the polyphenylene ether resin used for the solder resist layer, peeling, cracks, and the like hardly occur.
- a solder resist layer having solder bumps is manufactured. Place the IC chip on the upper predetermined position, reflow the solder by heating, and connect the wiring of the printed wiring board and the IC chip. Subsequently, the printed wiring board to which the IC chip is connected is filled with an underfill, and resin sealing is performed, thereby completing the manufacture of the semiconductor device.
- the semiconductor device of the third invention of the fourth group of the present invention even if the frequency of the IC chip is a high-frequency signal region of 1 GHz or more, it is caused by signal propagation delay, signal transmission loss, and the like. No signal error occurs.
- a fifth group of the present invention is a multilayer printed wiring board in which a conductive circuit and a resin insulating layer are sequentially formed on a substrate, and a solder resist layer is formed on an outermost layer,
- the above-mentioned solder resist layer is a multilayer printed wiring board characterized by containing a P-atom-containing epoxy resin.
- the solder resist layer contains the P-atom-containing epoxy resin, it has excellent flame retardancy due to the presence thereof. This is because the epoxy resin used as the raw material for the solder resist layer contains P atoms, so even if the resin starts burning at the time of ignition, the combustion stops once at the P atoms.
- solder resist layer formed on a fifth group of the multilayer printed wiring board of the present invention. Since epoxy resin, which has excellent adhesion, is used as a raw material, the adhesion between the solder resist layer and the conductor circuit is high.
- solder resist layer the same material as that usually used for the non-P-atom-containing epoxy resin is used, so that the solder-resist layer is exposed and developed. Thus, an opening having a desired shape is formed.
- the solder resist layer contains a P atom-containing epoxy resin.
- the P-atom-containing epoxy resin is not particularly limited as long as it is a phosphorus-containing epoxy resin. Among them, an epoxy resin having a phosphate residue is preferable, and an epoxy resin having a phosphate ester bond is preferred. More desirable.
- an epoxy resin having a divalent phosphoric acid residue and having epoxy groups at both ends and an epoxy resin having a monovalent phosphoric acid residue at one end and epoxy at the other end Epoxy resins having groups are preferred.
- Examples of the epoxy resin having a divalent phosphoric acid residue and having epoxy groups at both ends include a P atom-containing epoxy resin represented by the following general formula (4).
- the P-atom-containing epoxy resin represented by the general formula (4) has a phosphate ester bond.
- the phosphoric acid residue is represented by the following chemical formula (6)
- a compound represented by the following formula is bonded.
- the compound that binds to the phosphate residue is, for example, a compound represented by the following chemical formula (7).
- Examples of the epoxy resin having a monovalent phosphoric acid residue at one end and an epoxy group at the other end include, for example, a P atom-containing epoxy resin represented by the following general formula (5). Xy resin and the like.
- X 3 represents O or a single bond
- R represents an alkyl group having 2 to 8 carbon atoms.
- the P-atom-containing epoxy resin represented by the general formula (5) has a phosphate ester bond.
- the compound binding to the phosphate residue may be, for example, a compound having an epoxy group at a terminal represented by the chemical formula (7). Good.
- alkyl group examples include an ethyl group, a propyl group, an isopropyl group, a butyl group, a sec-butyl group, a t-tert-butyl group, and the like. Of these, a butyl group is preferred.
- the content of the P atom-containing epoxy resin in the solder resist layer is desirably 0.1 to 70% by weight. If the amount is less than 0.1% by weight, the multilayer printed wiring board may not have sufficient flame retardancy. Flame retardancy does not improve much.
- the solder resist layer desirably contains a silicon compound, an aluminum compound, a magnesium compound, or the like as an inorganic filler.
- these compounds include, for example, those similar to the inorganic filler used for the multilayer printed wiring board of the first invention of the first group of the invention.
- These compounds may be contained alone or in combination of two or more.
- the inorganic filler preferably has a particle size of 0.1 to 5.0 ⁇ m. If the particle size is less than 0.1 im, the effect of relieving the stress generated in the solder resist layer is not obtained much.On the other hand, if it exceeds 5. ⁇ , the curability of the solder resist composition layer may be reduced. This may have an adverse effect, and may have an adverse effect on the opening properties when an opening for a solder pad or the like is provided in the layer of the solder resist composition.
- the shape of the inorganic filler is not particularly limited, and examples thereof include a spherical shape, an elliptical spherical shape, a crushed shape, and a polyhedral shape.
- a spherical shape is preferable because the stress generated in the solder resist layer is easily reduced and the solder resist layer hardly becomes a projection on the surface.
- the content of the inorganic filler of the solder resist layer is 0.1 to 1 5 weight 0/0 is preferred.
- the content is less than 0.1% by weight, the effect of relaxing the stress generated in the solder resist layer is poor, and if it exceeds 15% by weight, the hardening property of the layer of the solder resist composition is adversely affected. In some cases, this may have an adverse effect on the opening properties of the solder resist composition when a solder pad opening or the like is provided in the solder resist composition layer.
- the solder resist layer constituting the multilayer printed wiring board of the fifth group of the present invention may be, for example, a thermosetting resin or a thermoplastic resin in addition to the F atom-containing epoxy resin and the inorganic filler. Or a composite of a thermosetting resin and a thermoplastic resin. Specific examples thereof include (meth) acrylate of nopolak epoxy resin, bifunctional (meth) acrylate monomer, and poly (meth) acrylate having a molecular weight of about 500 to 500,000.
- a first group of the present invention which is obtained by polymerizing and curing a solder-resist composition comprising a thermosetting resin composed of a bisphenol-type epoxy resin, a photosensitive monomer such as a polyvalent acrylic monomer, or the like; Examples thereof include those similar to those used in the multilayer printed wiring board of the first invention.
- an uncured solder resist composition containing the above-mentioned P atom-containing epoxy resin or the like is prepared, and is applied by an alcohol coater method or the like. After preparing a resin film made of the solder resist composition, a method of thermocompression bonding the resin film may be used.
- the above-mentioned inorganic filler is contained in the solder resist layer, it is preferable to add the above-mentioned inorganic filler after dispersing it in a solvent such as methyl ethyl ketone when preparing the above-mentioned solder-resist composition.
- the inorganic filler can be uniformly dispersed in the solder resist layer without aggregating.
- the above solder resist composition contains, in addition to phosphorus, a phosphorus compound, and an inorganic filler, (meth) acrylate of the novolak epoxy resin, an imidazole curing agent, 2 functional (meth) acrylate monomers, and a molecular weight of 500 Approximately 50,000 (meta) acrylate polymer, thermosetting resin composed of bisphenol-type epoxy resin, photosensitive monomer such as polyvalent acrylic monomer, glycol ether-based solvent, etc. It is desirable that the fluid be in the form of a liquid. Also, its viscosity is
- the temperature be adjusted to 1 to 10 Pa ⁇ s at 25 ° C.
- Examples of the imidazole curing agent and the glycol ether-based solvent include those similar to those used in the first group of the solder resist compositions of the second invention of the present invention.
- the solder resist layer having such a configuration is excellent in flame retardancy because it contains the P-atom-containing epoxy resin, and the multilayer resist on which the solder resist layer is formed is formed.
- the printed circuit board meets the criteria of UL 94 (flame retardancy test of polymer materials) in the UL test standard, and among them, it meets the criteria of 94 V-0.
- the fifth group of multilayer printed wiring boards of the present invention is the same as the first group of multilayer printed wiring boards of the present invention except that a solder resist composition containing a P-atom-containing epoxy resin is used. Can be manufactured.
- the resin used for forming the resin insulating layer preferably contains the P-atom-containing epoxy resin described above. Since the P-atom-containing epoxy resin is contained not only in the solder resist layer but also in the resin insulation layer, the flame retardancy of the multilayer printed wiring board is further improved.
- cresol one novolac type epoxy resin made by Nippon Kayaku Co., molecular weight: 250 0
- photosensitive monomer Alonix M3 15 manufactured by Toa Gosei Co., Ltd.
- defoamer Sannopco S
- cresol one novolac type epoxy resin made by Nippon Kayaku Co., molecular weight: 250 0
- Akuriru compound 80 weight 0/0 at a concentration of diethylene glycol dimethyl ether (DMDG) to dissolved resin solution 35 parts by weight of 4 parts by weight of photosensitive monomer (Alonix M315, manufactured by Toa Kasei Co., Ltd.), 0.5 parts by weight of defoamer (S-65, manufactured by Sannopco) and 3.6 parts by weight of N-methylpyrrolidone (NMP) Was placed in a container and mixed by stirring to prepare a mixed composition.
- DMDG diethylene glycol dimethyl ether
- S-65 manufactured by Sannopco
- NMP N-methylpyrrolidone
- a curing agent As a curing agent, 6.5 parts by weight of an imidazole curing agent (2E4MZ-CN, manufactured by Shikoku Chemicals Co., Ltd.) was used.
- the starting material was a copper-clad laminate in which 18 m copper foil 8 was laminated on both sides of a substrate 1 made of glass epoxy resin or BT (bismaleimid triazine) resin with a thickness of 1 mm (Fig. 1 (See (a)).
- the copper-clad laminate was drilled, subjected to electroless plating, and etched in a pattern to form a lower conductor circuit 4 and a through hole 9 on both sides of the substrate 1.
- the resin filler 10 is applied to one surface of the substrate using a roll coater, so that the lower conductor circuit 4 or the through hole is formed. 9 and heat-dried. On the other side, resin filler 10 was similarly filled between conductor circuits 4 or into through holes 9 and heat-dried (see Fig. 1 (c)). ).
- the insulating substrate on which the conductor circuit has been formed by the above process is alkali-degreased and soft-etched, and then treated with a catalyst solution containing palladium chloride and an organic acid to provide a Pd catalyst. Then, the catalyst was activated.
- the resin composition for forming a roughened surface for the lower layer described in B above (viscosity: 1.5 Pa ⁇ s) is applied to both surfaces of the substrate within 24 hours using a mouth coater. After being left in a horizontal state for 20 minutes, drying was performed at 60 ° C. for 30 minutes. Next, the resin composition for forming a roughened surface for the upper layer (viscosity: 7 Pa ⁇ s) described in A above was applied using a mouth coater within 24 hours after preparation, and was similarly kept in a horizontal state for 20 minutes. After drying for 30 minutes at 60 ° C, layers 2a and 2b of the resin composition for forming a roughened surface with a thickness of 35 // m were formed (Fig. 2 (b) See).
- a photomask film printed with a black circle having a diameter of 85 / m is adhered to both sides of the substrate on which the layer of the resin composition for forming a roughened surface is formed in the above (7). After exposure at an intensity of 500 mJZcm 2 , it was spray-developed with a DMDG solution. Thereafter, the substrate is further exposed to light at an intensity of 300 OmjZ cm 2 using an ultra-high pressure mercury lamp and subjected to a heat treatment at 100 ° C for 1 hour, at 120 ° C for 1 hour, and at 150 ° C for 3 hours.
- the substrate on which the via hole opening 6 is formed is immersed in a chromic acid aqueous solution (7 500 g / 1) for 19 minutes to dissolve and remove the epoxy resin particles present on the surface of the interlayer resin insulating layer, and remove the surface. It was roughened to obtain a roughened surface. Then, they were immersed in a neutralization solution (manufactured by Shipley) and washed with water (see Fig. 2 (d)).
- a neutralization solution manufactured by Shipley
- catalyst nuclei were attached to the surface of the interlayer insulating material layer and the inner wall surface of the via hole opening.
- the substrate is immersed in an electroless copper plating aqueous solution having the following composition to form an electroless copper plating film 12 with a thickness of 0.6 to 1.2 ⁇ m on the entire rough surface. (See Fig. 3 (a)).
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- the nickel plating layer 15 of Aim was formed.
- the substrate was treated with potassium potassium cyanide (7.6 X 1 CT 3 mo 1 zo 1), ammonium chloride (1.9 X 10—o 1 Z 1), sodium citrate (1.2 X 10— immersion in electroless plating solution containing sodium hypophosphite (1.7 x 10—imo 11) at 80 ° C for 7.5 minutes, nickel plating On the layer 15, a plating layer 16 having a thickness of 0.03 m was formed.
- solder paste is printed on the openings of the solder resist Solder bumps 17 were formed by reflow at 0 ° C, and a multilayer printed wiring board having the solder bumps 17 was manufactured (see Fig. 5 (c)).
- the resin filler was pushed into the through holes using a squeegee, and then dried at 100 ° C. for 20 minutes.
- a mask having an opening corresponding to the portion where the conductor circuit is not formed is placed on the substrate, and a squeegee is used to form a layer of the resin filler 10 in the portion where the conductor circuit is not formed in the concave portion. And dried at 100 ° C for 20 minutes (see Fig. 6 (c)).
- the substrate on which the via hole opening 6 was formed was placed in a solution containing chromic acid for 19 minutes.
- the surface of the interlayer resin insulation layer 2 is roughened (depth 6 ⁇ ) by dissolving and removing the epoxy resin particles present on the surface of the interlayer resin insulation layer 2. ) And washed with water (see Fig. 7 (d)).
- a catalyst nucleus was attached to the surface of the interlayer resin insulating layer 2 and the inner wall surface of the via hole opening 6.
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- solder resist composition is applied to both surfaces of the multilayer wiring board in a thickness of 20 ⁇ . 5 mm thick photomask with solder resist opening pattern drawn after drying at 70 ° C for 20 minutes and 70 ° C for 30 minutes
- the film was brought into close contact with the solder resist layer, exposed to ultraviolet light of l OOO m jZ cm 2 and developed with a DMTG solution to form an opening having a diameter of 200 m.
- solder resist layer is cured by heating at 80 ° C. for 1 hour, at 100 ° C. for 1 hour, at 120 ° C. for 1 hour, and at 150 ° C. for 3 hours.
- a solder resist layer 14 having an opening and a thickness of 20 nm was formed.
- the substrate having undergone the above steps is immersed in this etching solution for 1 minute.
- the average surface roughness (R a) was set to 1 / im.
- Plating layer 15 was formed.
- the substrate was treated with potassium potassium cyanide (7.6 X 10 " 3 mo 1/1), ammonium chloride (1.9 X 10 mo 1/1), sodium citrate (1.2 X 10 mo). 1/1), and electroless plating solution containing sodium hypophosphite (1.7 x 10 mo 1/1) at 80 ° C for 7.5 min.
- a gold-plated layer 16 having a thickness of 0.03 ⁇ was formed on 5.
- solder paste is printed on the opening of the solder resist layer 14 and reflowed at 200 ° C. to form a solder bump 17, and a multi-layer wiring print having the solder 17 is printed.
- the substrate was manufactured (see Fig. 10 (c)).
- a multilayer printed wiring board was produced in the same manner as in Example 1, except that 7 parts by weight of an epoxidized polybutadiene was further added as an elastomer.
- Example 2 was repeated except that, in the step (14) of preparing the solder resist composition, 7 parts by weight of an epoxidized polybutadiene was further added as an elastomer. In the same manner as in the above, a multilayer printed wiring board was manufactured.
- a multilayer printed wiring board was obtained in the same manner as in Example 1 except that the inorganic filler was not added in the preparation of the solder resist composition.
- a multilayer printed wiring board was obtained in the same manner as in Example 2, except that no inorganic filler was added in the preparation of the solder resist composition.
- the solder bump portions were observed with a microscope.
- the reliability test was performed under the condition that the multilayer printed wiring board was left for 300 hours in an atmosphere at a relative humidity of 85% and a temperature of 130 ° C.
- the multilayer printed wiring board after the above test was cut with a cutter, and a portion of the solder resist layer was observed with a microscope.
- a multilayer printed wiring board was manufactured in the same manner as in Example 1 except that a solder resist composition was prepared using the following method.
- solder resist composition (i) A sensitizing oligomer (molecular weight: 4000) obtained by acrylizing 50% of the epoxy groups of a cresol novolak type epoxy resin (manufactured by Nippon Kayaku Co., Ltd.) was added to diethylene glycol dimethyl so as to have a concentration of 60 weight 0.
- DMDG DMDG
- polyfunctional acrylic monomer as photosensitive monomer trade name: R604, manufactured by Nippon Kayaku Co., Ltd.
- a mixture composition was prepared by placing 0.7 part by weight of a solvent and 0.7 part by weight of a dispersion defoaming agent (manufactured by San Nopco Co., trade name: S-65) in a container and stirring and mixing.
- Imidazole curing agent manufactured by Shikoku Chemicals Co., Ltd., trade name: 2E4MZ—CN
- Benzophenone a photopolymerization initiator (Kanto Chemical Co., Ltd.) 2.0 parts by weight
- photosensitization 0.2 parts by weight of Mihira monoketone manufactured by Kanto Chemical Co., Ltd.
- the viscosity is 25 by mixing the mixed compositions prepared in (i), (ii) and (iii). With C, a solder resist composition of 2.0 Pa ⁇ s was obtained.
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- a multilayer printed wiring board was manufactured in the same manner as in Example 2, except that the solder resist composition prepared in the same manner as in Example 5 was used.
- a multilayer printed wiring board was manufactured in the same manner as in Example 5, except that a solder resist composition was prepared using the following method.
- cresol one novolac type epoxy resin made by Nippon Kayaku Co., Ltd.
- epoxy groups 50% 50% was acrylated photosensitive imparting oligomer (molecular weight: 4000) and, to a concentration of 60 by weight 0/0 Diethylene glycol dimethyl ether (DMDG) Dissolved resin liquid 46.
- DMDG Diethylene glycol dimethyl ether
- 67 parts by weight, 3 parts by weight of polyfunctional acrylic monomer as photosensitive monomer (trade name: R604, manufactured by Nippon Kayaku Co., Ltd.), spherical silica having an average particle size of 0 13.
- a mixed composition was prepared by placing 5 parts by weight, 7 parts by weight of a terminal epoxidized polybutadiene and 0.71 parts by weight of a dispersant antifoaming agent (manufactured by San Nopco, trade name: S-65) in a container and stirring and mixing. .
- a dispersant antifoaming agent manufactured by San Nopco, trade name: S-65
- Imidazole curing agent manufactured by Shikoku Chemicals Co., Ltd., trade name: 2E4MZ—CN
- Benzophenone photopolymerization initiator manufactured by Kanto Chemical Co.
- light 0.2 part by weight of Michler's ketone manufactured by Kanto Chemical Co., Ltd.
- a multilayer printed wiring board was manufactured in the same manner as in Example 6, except that a solder resist composition was prepared in the same manner as in Example 7.
- a multilayer printed wiring board was obtained in the same manner as in Example 5 except that the terminal epoxidized polybutadiene was not added in the preparation of the solder resist composition.
- a multilayer printed wiring board was obtained in the same manner as in Example 6, except that no terminal-epoxidized polybutadiene was added in the preparation of the solder resist composition. As described above, the multilayer printed wiring boards obtained in Examples 5 to 8 and Comparative Examples 3 and 4 were subjected to the same reliability test as in Example 1, and the solder bumps were observed with a microscope.
- Example 2 In addition, the same heat cycle test as in Example 1 was performed, and thereafter, these multilayer printed wiring boards were cut with a force cutter, and it was observed whether cracks or the like were generated in the solder resist layer.
- a resin filler was prepared in the same manner as in Example 1.
- a substrate made of a 0.8 mm thick glass epoxy resin or a BT (bismaleimid triazine) resin substrate 1 with 18 ⁇ copper foil 8 laminated on both sides of the substrate 1 See Fig. 11 (a)).
- the copper-clad laminate is drilled, and then a plating resist is formed.
- the substrate is subjected to an electroless copper plating treatment to form a through hole 9, and a copper foil is formed.
- the inner layer copper pattern (lower layer conductor circuit) 4 was formed on both sides of the substrate by etching in a pattern according to the method.
- Polishing was performed so that the resin filler 10 did not remain on the surface of the land of No. 9, and then puff polishing was performed to remove the scratches caused by the belt sander polishing. Such a series of polishing was similarly performed on the other surface of the substrate. Then, the filled resin filler 10 was cured by heating (see FIG. 11D).
- the obtained wiring board was obtained.
- thermosetting cycloolefin-based resin sheet was heated to a temperature of 50 to 150 ° C. on both sides of the substrate after the above process, while applying a pressure of 0.5 MP.
- Vacuum compression lamination was performed in a, and an interlayer resin insulation layer 2 made of cycloolefin resin was provided (see Fig. 12 (a)).
- the degree of vacuum at the time of vacuum compression was 10 mmHg.
- the substrate is immersed in an electroless copper plating aqueous solution having the following composition, and the entire surface of the Ni metal layer 12a is 0.6 to 2 ⁇ m thick: A plating film 12b was formed (see Fig. 12 (d)).
- step 9 A commercially available photosensitive dry film is attached to both surfaces of the substrate after the above treatment by thermocompression bonding to the electroless copper-plated film 12, and a photomask film is placed on the substrate, and 100 mJcm After exposure in step 2 , the resist was developed with 0.8% sodium carbonate to form a plating resist 3 pattern having a thickness of 15 ⁇ (see FIG. 13 (a)).
- electroplating was performed under the following conditions to form an electroplating film 13 having a thickness of 15 ⁇ m (see FIG. 13B). It is to be noted that, with the electric plating film 13, a portion to be the conductor circuit 5 and a plating and filling of the portion to be the via hole 7 have been performed in the process described later.
- the additive in the electroplating aqueous solution is Capparaside HL manufactured by Atotech Japan.
- thermosetting polyolefin-based resin sheet manufactured by Sumitomo 3M, product name: 1592
- a thermosetting polyolefin-based resin sheet having a thickness of 20 ⁇ m is applied to both surfaces of the multilayer wiring board on which the upper conductor circuit is formed at a temperature of 50 ° C or less.
- Vacuum compression lamination was performed at a pressure of 0.5 MPa while the temperature was raised to 150 ° C., and a solder resist layer 14 made of a polyolefin resin was provided.
- the degree of vacuum at the time of vacuum pressing was 10 mmHg.
- solder resist layer 14 made of a thermosetting polyolefin resin using an excimer laser having a wavelength of 248 nm. Thereafter, desmearing treatment was performed using oxygen plasma to form a solder resist layer (organic resin insulating layer) 14 having a thickness of 20 m and an opening in the solder pad portion.
- the substrate on which the solder resist layer (organic resin insulating layer) 14 was formed was coated with nickel chloride (2.3 X 1 O ⁇ mo 1/1), sodium hypophosphite (2.8 X 1 O-'mo 1/1), Sodium taenoate (1.6 X 10—! Mol / l) Then, a nickel plating layer 15 having a thickness of 5 m was formed. Furthermore, the substrate gold potassium cyanide (7. 6 X 1 0- 3 mo 1 Z 1), Anmoniumu chloride (1. 9 X 1 0 111 o 1 1), sodium Taen acid (1. 2 X 1 0- imo l Z l) 80 for electroless plating solutions containing sodium hypophosphite (1.
- solder paste is printed in the opening of the solder resist layer 14 and reflowed at 200 ° C. to form a solder bump (solder body) 17, and the solder bump 17 is provided.
- a multilayer printed wiring board was manufactured (see Fig. 15 (b)).
- step (13) of Example 9 a 20 m-thick thermosetting cycloolefin resin sheet was used in place of the thermosetting polyolefin resin sheet, and a solder resist layer made of a thermosetting cycloolefin resin was used.
- a multilayer printed wiring board was manufactured in the same manner as in Example 9 except that a was formed, and an IC chip was connected to the multilayer printed wiring board to obtain a semiconductor device.
- Example 2 In the same manner as in Example 1, a resin composition for forming an upper layer and a lower layer having a roughened surface, and a resin filler were prepared.
- the surface of the inner layer copper pattern 4 is polished on one side of the substrate after the processing of the above (3) by belt sander polishing using # 600 belt polishing paper (manufactured by Sankyo Rikagaku).
- Polishing was performed so that the resin filler 10 did not remain on the land surface of the hole 9, and then buffing was performed to remove the scratches caused by the belt sander polishing. Such a series of polishing was similarly performed on the other surface of the substrate.
- etching solution 10 parts by weight of imidazole copper (II) complex, 7 parts by weight of glycolic acid, and 5 parts by weight of potassium chloride (Mec etch bond, manufactured by Mec Co., Ltd.) was used.
- a resin composition for forming a roughened surface for the lower layer (viscosity: 1.5 Pa ⁇ s) is applied to both surfaces of the substrate using a roll coater within 24 hours after preparation, and is applied in a horizontal state. Minutes After standing, drying was performed at 60 ° C. for 30 minutes.
- a resin composition for forming a roughened surface for the upper layer (viscosity: 7 Pa ⁇ s) is applied using a roll coater within 24 hours after preparation, and similarly left for 20 minutes in a horizontal state. After drying for 30 minutes at 60 ° C, layers 2a and 2b of the resin composition for forming a roughened surface having a thickness of 35 // m were formed (Fig. 17
- a photomask having a black circle having a diameter of 85 ⁇ m drawn by a light-shielding ink is provided on both sides of the substrate 1 on which the layers 2a and 2b of the resin composition for forming a roughened surface are formed in the above (6). brought into close contact with Lum was exposed in 3 0 0 O m jZc m 2 intensity by an ultra high pressure mercury lamp. This is followed by a heat treatment of 1 hour at 100 ° C, 1 hour at 120 ° C, and 3 hours at 150 ° C, and a diameter of 8 5 with excellent dimensional accuracy equivalent to a photomask film. A 35-m-thick interlayer resin insulation layer 2 having a through hole 6 for the hole was formed (Fig. 17
- the substrate on which the via hole openings 6 are formed is immersed in a solution containing chromic acid for 19 minutes to dissolve and remove the epoxy resin particles present on the surface of the interlayer resin insulation layer 2, thereby forming the interlayer resin insulation layer.
- the surface of No. 2 was roughened (depth: 6 ⁇ ), then immersed in a neutralizing solution (manufactured by Shipley), and washed with water (see Fig. 17 (d)).
- a catalyst nucleus was attached to the surface of the interlayer resin insulating layer 2 and the inner wall surface of the via hole opening 6.
- PEG Polyethylene glycol
- the electroless plating film 12 under the plating resist 3 is dissolved and removed by etching with a mixed solution of sulfuric acid and hydrogen peroxide, and then electroless.
- a conductor circuit (including via holes 7) 5 composed of the copper plating film 12 and the electrolytic copper plating film 13 was formed (see FIG. 18 (d)).
- a multilayer wiring board was obtained in the same manner as in the steps (1) to (13) of Example 11 (see FIG. 21 (a)).
- the surface of the conductor circuit (including the via hole 7) 5 is roughened by etching the surface of the conductor circuit (including the via hole 7) 5 using a MEC etch bond manufactured by Mec Corporation. A surface was formed (see Fig. 21 (b)).
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- solder resist composition to a thickness of 20 ⁇ m on both sides of the multilayer wiring board, and perform drying at 70 ° C for 20 minutes and 70 ° C for 30 minutes.
- solder resist layer organic resin insulating layer 14 with a thickness of 20 m with an opening in the solder pad portion is formed. Formed.
- solder paste is printed on the opening of the solder resist layer 14 and reflowed at 200 ° C. to form a solder bump (solder body) 17, and a multilayer having a solder pump 17 is formed.
- a printed wiring board was manufactured (see Fig. 21 (c)).
- Example 9 11 and Comparative Example 5 The dielectric constant and the dielectric loss tangent of the multilayer printed wiring boards obtained in Example 9 11 and Comparative Example 5 were measured, and further, whether or not a signal delay and a signal error occurred using the manufactured semiconductor device was determined. Was evaluated. The results are shown in Table 1 below.
- a resin filler was prepared in the same manner as in Example 1.
- Substrate made of 0.8 mm thick glass epoxy resin or BT (Bismaleidium triazine) resin 1 Starting from a copper-clad laminate with 18 / m copper foil 8 laminated on both sides (See Figure 22 (a)). First, the copper-clad laminate is drilled, and then a plating resist is formed. Then, the substrate is subjected to an electroless copper plating treatment to form a through hole 9, and a copper foil is formed.
- the inner layer copper pattern (lower layer conductor circuit) 4 was formed on both sides of the substrate by etching in a pattern according to the method.
- One surface of the substrate, which has been processed in (3) above, is filled with resin on the surface of the lower conductive circuit 4 and the land surface of the through hole 9 by belt sanding using a belt polishing paper (manufactured by Sankyo Rikagaku Co., Ltd.). Polishing was performed so that the material 10 did not remain, and then buffing was performed to remove scratches due to the belt sander polishing. Such a series of polishing was similarly performed on the other surface of the substrate. And the filled resin filler 10 was heated and cured (see Fig. 22 (d)).
- an etching solution is sprayed on both surfaces of the substrate by spraying, so that the surface of the lower conductor circuit 4 and the land surface and the inner wall of the through hole 9 are removed. By etching, the roughened surfaces 4a and 9a were formed on the entire surface of the lower conductor circuit 4 (see FIG. 23 (a)).
- an etching solution an etching solution (Mec etch bond, manufactured by Mec Co., Ltd.) consisting of 10 parts by weight of imidazole copper (II) complex, 7 parts by weight of glycolic acid, and 5 parts by weight of chlorinated rim was used.
- the heat of R 5 is one CH 2 — and R 2 is —CH 2 -0-CH 2 — in the above chemical formula (3) having a thickness of 5
- the curable poly (phenylene ether) resin sheet was vacuum-compressed and laminated at a pressure of 0.5 MPa while elevating the temperature to a temperature of 50 to 150 ° C, and an interlayer resin insulating layer 2 made of poly (phenylene ether) resin was provided ( See Figure 23 (b)).
- the degree of vacuum at the time of vacuum pressure bonding 1 0 mmH g thick 7 this 0
- a via hole opening 6 with a diameter of 80 ⁇ was formed in the interlayer resin insulation layer 2 made of thermosetting polyphenylene ether resin using an excimer laser with a wavelength of 248 nm (see Fig. 23 (c)). . Thereafter, desmear treatment was performed using oxygen plasma.
- Ni metal layer 12 was formed on the surface of the interlayer resin insulation layer 2 (see FIG. 23 (d)). At this time, the thickness of the formed Ni metal layer was 0.1 ⁇ .
- electroplating was performed under the following conditions to form an electroplating film 13 having a thickness of 15 / m (see FIG. 24 (b)). It is to be noted that, by the electric plating film 13, a portion to be the conductor circuit 5 and a portion to be the via hole 7 are plated and filled in the steps described later.
- the additive in the electroplating aqueous solution is Capparaside HL manufactured by Atotech Japan.
- R 1 is -CH 2 —CH 2 — and R 2 is -CH 2 on both sides of the multilayer wiring board on which the upper conductor circuit is formed. 2 — ⁇
- Thermosetting Porifue two ether resin sheet is -CH 2 one vacuum crimp lamination at a pressure 0. 5 MP a while raising the temperature to a temperature 50 ° C ⁇ 1 50 ° C, consisting Porifue two Rene one ether resin
- a solder resist layer 14 was provided.
- the degree of vacuum at the time of vacuum compression was l OmmHg. (14)
- an opening having a diameter of 200 // m was formed in the solder resist layer 14 made of a thermosetting polyphenylene ether resin using an excimer laser having a wavelength of 248 nm.
- desmearing treatment was performed using oxygen plasma to form a solder resist layer (organic resin insulating layer) 14 having a thickness of 20 zm and an open solder pad portion.
- the substrate on which the solder resist layer (organic resin insulating layer) 14 was formed was coated with nickel chloride (2.3 X 10- ) mo 1/1) sodium hypophosphite (2.8 X 1 Cr ⁇ ni o 1 Z 1) and ⁇ ⁇ -4.5 containing sodium citrate (1. ⁇ ⁇ ⁇ ⁇ -' ⁇ ⁇ ⁇ ⁇ )
- a nickel plating layer 15 having a thickness of 5 / zm was formed in the opening.
- the substrate gold potassium cyanide (7. 6 X 1 0- 3 mo 1 1), Anmoniumu chloride (1. 9 X 1 0- ' ⁇ ⁇ / 1), sodium Taen acid (1.
- solder paste is printed on the opening of the solder resist layer 14 and reflowed at 200 ° C. to form a solder bump (solder body) 17, and a multilayer print having the solder bump 17 is formed.
- the wiring board was manufactured (see Fig. 26 (c)).
- the solder bumps on the multilayer printed wiring board are aligned with the bumps on the IC chip, and the solder is reflowed to join the solder bumps on the multilayer printed wiring board to the IC chip bumps. I let it. Then, flux cleaning was performed, and an underfill was filled between the IC chip and the multilayer printed wiring board, whereby a multilayer printed wiring board (semiconductor device) to which the IC chip was connected was obtained.
- thermosetting type cycloolefin resin sheet having a thickness of 20 // m was used instead of the thermosetting polyphenylene ether resin.
- a multilayer printed wiring board was manufactured in the same manner as in Example 12 except that an interlayer resin insulating layer made of a cycloolefin resin was formed. Using this, a multilayer printed wiring board (semiconductor device) to which an IC chip was connected was used. Obtained.
- a resin composition for forming a roughened surface was obtained by mixing the mixed compositions prepared in (i), (ii) and (iii).
- a resin composition for forming a roughened surface was obtained by mixing the mixed compositions prepared in (i), (ii) and (iii).
- Substrate made of 0.8 mm thick glass epoxy resin or BT (Bismaleidium triazine) resin 1 Starting from a copper-clad laminate with 18 ⁇ m copper foil 8 laminated on both sides (See Fig. 27 (a)). First, the copper-clad laminate was drilled, subjected to electroless plating, and etched in a pattern to form a lower conductor circuit 4 and a through hole 9 on both surfaces of the substrate 1.
- the surface of the inner layer copper pattern 4 is polished on one side of the substrate after the treatment of the above (3) by belt sander polishing using # 600 belt polishing paper (manufactured by Sankyo Rikagaku). Polishing was performed so that the resin filler 10 did not remain on the surface of the land of No. 9, and then puff polishing was performed to remove scratches caused by the belt sander polishing. Such a series of polishing was similarly performed on the other surface of the substrate.
- an etching solution is sprayed on both surfaces of the substrate by spraying, so that the surface of the lower conductor circuit 4 and the land surface and the inner wall of the through hole 9 are removed. By etching, the roughened surfaces 4a and 9a were formed on the entire surface of the lower conductor circuit 4 (see FIG. 28 (a)).
- an etching solution 10 parts by weight of imidazole copper (II) complex, 7 parts by weight of glycolic acid, and 5 parts by weight of potassium chloride (Mec etch bond, manufactured by Mec Co., Ltd.) was used.
- a resin composition for forming a roughened surface for the lower layer (viscosity: 1.5 Pa ⁇ s) is applied to both surfaces of the substrate using a roll coater within 24 hours after preparation, and is applied horizontally to the substrate. After standing for 60 minutes, drying was performed at 60 ° C for 30 minutes.
- a resin composition for forming a roughened surface for the upper layer (viscosity: 7 Pa ⁇ s) is applied using a roll coater within 24 hours after preparation, and similarly left for 20 minutes in a horizontal state, Drying was performed at 60 ° C. for 30 minutes to form layers 2 a and 2 b of the resin composition for forming a roughened surface having a thickness of 35 m (see FIG. 28 (b)).
- the substrate in which the via hole openings 6 are formed is immersed in a solution containing chromic acid for 19 minutes to dissolve and remove the epoxy resin particles present on the surface of the interlayer resin insulation layer 2, thereby forming the interlayer resin insulation layer.
- the surface of No. 2 was roughened (depth 6 / m), then immersed in a neutralizing solution (manufactured by Shipley), and washed with water (see Fig. 28 (d)).
- catalyst nuclei were attached to the surface of the interlayer resin insulating layer 2 and the inner wall surface of the via hole opening 6.
- the substrate is immersed in an electroless copper plating aqueous solution having the following composition to form a thin film layer (electroless copper plating film) with a thickness of 0.6 to 1.2 / m on the entire rough surface. 12 was formed (see Fig. 29 (a)).
- a commercially available photosensitive dry film is attached to the thin film layer (electroless copper-coated film) 12 by thermocompression bonding, a mask is placed, and after exposure at 100 mj Z cm 2 , It was developed with 0.8% sodium carbonate and plated with a thickness of 15 ⁇ m. A resist 3 was provided (see Fig. 29 (b)).
- the electroless plating film under the plating resist 3 is dissolved and removed by etching with a mixed solution of sulfuric acid and hydrogen peroxide, and the thin film layer (the An 18-m-thick conductor circuit (including via hole 7) 5 composed of electrolytic copper plating film 12 and electrolytic copper plating film 13 was formed (see Fig. 29 (d)).
- Benzophenone manufactured by Kanto Kagaku 2.0 parts by weight of this mixture composition as a photopolymerization initiator, photosensitization Adds 0.2 parts by weight of Michler's ketone (Kanto Chemical Co., Ltd.) as an agent to obtain a solder-resist composition (organic resin insulating material) whose viscosity is adjusted to 2.0 Pa ⁇ s at 25 ° C. Was.
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- solder resist composition was applied to a surface of the multilayer wiring board at a thickness of 20 / im, and dried at 70 ° C for 20 minutes and at 70 ° C for 30 minutes. After solder registry with the photomasks of the opening 5 mm thick on which a pattern is drawn is brought into close contact with the solder registry layer was exposed to ultraviolet rays of 1000m JZC m 2, and developed with D MTG solution, 200 / xm An opening having a diameter of
- a resist layer (organic resin insulating layer) 14 was formed.
- solder paste is printed on the opening of the solder resist layer 14 and reflowed at 200 ° C. to form a solder bump (solder body) 17, and a multilayer print having the solder bump 17 is formed.
- the printed circuit board was manufactured (see Fig. 31 (c)).
- Imidazole curing agent Shikoku Chemicals, 2E4MZ—CN
- photopolymerization initiator benzophenone
- photosensitizer Ciba Specialty Chemicals, EAB 4 parts by weight
- 16 parts by weight of NMP were placed in another container and mixed with stirring to prepare a mixed composition.
- DMDG diethylene dalicol dimethyl ether
- a curing agent As a curing agent, 6.5 parts by weight of an imidazole curing agent (2E4MZ-CN, manufactured by Shikoku Chemicals Co., Ltd.) was used.
- Starting material is a copper-clad laminate in which 18 ⁇ copper foil 8 is laminated on both sides of a substrate 1 made of glass epoxy resin or BT (bismaleidium triazine) resin with a thickness of 0.8 mm ( (See Fig. 6 (a)).
- a substrate 1 made of glass epoxy resin or BT (bismaleidium triazine) resin with a thickness of 0.8 mm (See Fig. 6 (a)).
- the copper-clad laminate was drilled, subjected to an electroless plating process, and etched in a pattern to form a lower conductor circuit 4 and a through hole 9 on both surfaces of the substrate 1.
- the resin filler 10 was cured by performing a heat treatment at 100.0.0 for 1 hour, at 120 at 3 hours, at 150 at 1 hour, and at 180 ° C. for 7 hours.
- an etching solution is sprayed on both surfaces of the substrate by spraying, so that the surface of the lower conductor circuit 4 and the land surface and the inner wall of the through hole 9 are separated. By etching, roughened surfaces 4a and 9a were formed on the entire surface of the lower conductor circuit 4 (see FIG. 7 (a)).
- an etching solution an etching solution (10 parts by weight of imidazole copper (II) complex, 7 parts by weight of glycolic acid, and 5 parts by weight of lithium chloride) (Mec etch bond, manufactured by Mec Co., Ltd.) was used.
- the resin composition for forming a roughened surface (viscosity: 7 Pa ⁇ s) of the above A is applied on the roughened surface forming resin layer 2 a using a roll coater, and left in a horizontal state for 20 minutes. After drying at 60 ° C for 30 minutes, a roughened surface forming resin layer 2b was formed, and a 35 ⁇ thick roughened surface forming resin layer was formed (Fig. 7 (b) See).
- a photomask film on which a black circle with a diameter of 85 / im is printed is adhered to both surfaces of the substrate 1 on which the resin layer for forming a roughened surface is formed in the above (6), and 500 mJ is applied by an ultra-high pressure mercury lamp. After exposure at an intensity of / cm 2 , spray development was carried out with a DMDG solution.
- the substrate was further exposed to 300 OmjZcm 2 intensity using an ultra-high pressure mercury lamp, 1 hour at 0 0 ° C, 1 hour at 2 0 ° C, 1 5 0 ° subjected to heat treatment for 3 hours in C, and for Baiahoru of the Photo diameter 8 excellent dimensional accuracy corresponding to the mask film 5 beta m
- An interlayer resin insulating layer 2 having an opening 6 and a thickness of 35 ⁇ was formed (see FIG. 7 (c)).
- the substrate on which the via hole opening 6 was formed was immersed in a solution containing 800 gZ1 of chromic acid at 70 ° C for 19 minutes, and the epoxy resin particles existing on the surface of the interlayer resin insulating layer 2
- the surface of the interlayer resin insulation layer 2 was roughened (3 ⁇ m deep) by dissolving and removing (see FIG. 7 (d)).
- catalyst nuclei were attached to the surface of the interlayer resin insulating layer 2 and the inner wall surface of the via hole opening 6.
- the substrate is washed with 50 ° C water and degreased, washed with 25 ° C water, and After washing with sulfuric acid, electrolytic copper plating was performed under the following conditions to form an electrolytic copper plating layer 13 (see Fig. 8 (c)).
- solder resist composition containing a P atom-containing epoxy resin was prepared by the following method.
- the viscosity was measured with a B-type viscometer (DVL-B, manufactured by Tokyo Keiki Co., Ltd.) using rotor No. 4 at 60 rpm and rotor No. 3 at 6 rpm.
- the above solder resist composition is applied to both sides of the multilayer wiring board at a thickness of 20 m, and dried at 70 ° C for 20 minutes and at 70 ° C for 20 minutes. and then, a solder resist openings photomask 5mm thick on which a pattern is drawn is brought into close contact with the layer of solder registry composition exposed with ultraviolet rays of 900m JZC m 2, and deionized water development, a diameter of 1 25 // m openings were formed.
- UV cure under the condition of 300 Omj / cm 2 , 1 hour at 80 ° C, 1 hour at 100 ° C, 1 hour at 120 ° C, and 3 hours at 150 ° C, respectively.
- the layer of the solder resist composition was cured by performing a heat treatment to form a solder resist layer 14 having an opening and a thickness of 25 / Xm.
- the substrate was treated with gold cyanide (2 gZ1), ammonium chloride (75 gZ1), sodium citrate (50 g / 1), and sodium hypophosphite (lOg / 1).
- the gold plating layer 16 having a thickness of 0.03 ⁇ m was formed on the nickel plating layer 15 by immersion in the electrolytic plating solution at 93 ° C. for 23 seconds.
- solder paste is printed on the opening of the solder resist layer 14 and reflowed with 20 to form a solder bump (solder body) 17 and a multilayer printed wiring having a solder bump 17
- the plate was manufactured (see Fig. 10 (c)).
- Bisphenol A type epoxy resin (epoxy equivalent 469, oiled shell epoxy Epikot 100 1) 30 parts by weight, cresol novolac epoxy resin (epoxy equivalent 2 15; Epiclone N—673, Dainippon Ink and Chemicals, Inc.) 40 parts by weight, triazine structure-containing phenol novolak resin (phenol) Hydrophobic hydroxyl equivalent 1 20, phenolic KA-7052 manufactured by Dainippon Ink and Chemicals, Inc. 30 parts by weight are heated and dissolved in 20 parts by weight of ethylene glycol acetate and 20 parts by weight of solvent naphtha while stirring, and epoxidized polybutadiene there.
- Rubber (Denalex R-45 EPT manufactured by Nagase Kasei Kogyo Co., Ltd.) 15 parts by weight and 2-phenyl-1,4,5-bis (hydroxymethyl) imidazole pulverized product 1.5 parts by weight, finely ground silica 2 parts by weight,
- An epoxy resin composition was prepared by adding 0.5 parts by weight of a silicone-based antifoaming agent.
- the obtained epoxy resin composition was applied on a 38 / zm-thick PET film using a roll coater so that the thickness after drying was 50 // m. By drying for 0 minutes, a resin film for an interlayer resin insulating layer was produced.
- Thickness 1 A copper-clad laminate with 18 m copper foil 8 laminated on both sides of a substrate 1 made of Omm glass epoxy resin or BT (Bismaleidium triazine) resin (Fig. 32 (a)). First, lower-layer conductor circuits 4 were formed on both surfaces of substrate 1 by etching the copper-clad laminate in a pattern.
- etching solution 10 parts by weight of imidazole copper (II) complex, 7 parts by weight of glycolic acid, and 5 parts by weight of potassium chloride) (Mec etch bond, manufactured by MEC Corporation) was used.
- the substrate on which the interlayer resin insulating layer 2 was formed was drilled to form a through hole 18 (see FIG. 32D).
- the substrate on which the via hole openings 6 and the through holes 18 are formed is immersed in a solution containing 60 g / ⁇ of permanganic acid at 80 ° C for 10 minutes to form the interlayer resin insulating layer 2.
- the surface of the interlayer resin insulation layer 2 was roughened by dissolving and removing the epoxy resin particles present on the surface (see Fig. 33 (a)).
- a palladium catalyst manufactured by Atotech
- the surface of the substrate subjected to the surface roughening treatment roughening depth 6 zm
- a catalyst core was attached to the inner wall surface 6 of the opening.
- the resin filler 10 was filled in the through hole 29 within 24 hours after the preparation by the following method.
- the resin filler was pushed into the through holes 29 using a squeegee, and then dried at 100 ° C. for 20 minutes.
- the electroless plating films 12a and 12b under the plating resist 3 are etched with a mixed solution of sulfuric acid and hydrogen peroxide.
- a conductor circuit (including via holes 7) 5 consisting of an electroless copper plating film 12 and an electrolytic copper plating film 13 and a thickness of 18; / m (see Fig. 34 (c)). See).
- solder resist composition containing a P atom-containing epoxy resin was prepared by the following method.
- solder resist composition is applied on both surfaces of the multilayer wiring board at a thickness of 20 / m, and dried at 70 for 20 minutes and at 70 for 20 minutes.
- solder resist pattern of openings in close contact to the layer of the solder resist composition photomask 5 mm thick drawn exposed with ultraviolet SOO mj Zc m 2, and deionized water development 1 An opening with a diameter of 25 ⁇ m was formed.
- the substrate on which the solder resist layer 14 was formed was coated with nickel chloride (2.3 X 1 O-'mo 1/1), sodium hypophosphite (2.8 X 10 "'mo 1/1) and sodium citrate (1. SX l O—! Moll), immersed in an electroless nickel plating solution with a pH of 4.5 for 20 minutes, and a 5 ⁇ m thick nickel to form a plated layer 1 5 further the substrate gold potassium cyanide. (7. 6 X 1 0 - 3 mo 1 1), Anmoniumu chloride (1. 9 X 1 O ⁇ mo 1 1), Taen acid sodium (1.2 X 10-!
- solder paste containing tin-lead is printed in the openings of the solder resist layer 14 on the surface of the substrate on which the IC chip is to be mounted, and the solder resist layer 14 on the other surface is printed.
- a solder paste containing tin-antimony is printed in the opening, pins are placed on the solder paste, and a riff is applied at 200 ° C. to form a solder bump (solder bump) on the surface on which the IC chip is to be placed. 17), and PGA on the other side, to produce a multilayer printed wiring board (see Fig. 36 (b)).
- Example 16 In the step (15) of Example 14, except that, as an inorganic filler, 10 parts by weight of spherical silica having an average particle diameter of 1.0 ⁇ m was added to prepare a solder resist composition, A multilayer printed wiring board was manufactured in the same manner as in Example 14.
- Example 17 In the step (15) of Example 14, except that, as an inorganic filler, 10 parts by weight of spherical silica having an average particle diameter of 1.0 ⁇ m was added to prepare a solder resist composition, A multilayer printed wiring board was manufactured in the same manner as in Example 14.
- Example 17 In the step (15) of Example 14, except that, as an inorganic filler, 10 parts by weight of spherical silica having an average particle diameter of 1.0 ⁇ m was added to prepare a solder resist composition, A multilayer printed wiring board was manufactured in the same manner as in Example 14.
- Example 17 In the step (15) of Example 14, except that, as an inorganic filler, 10 parts by weight of spherical si
- step (15) of Example 14 except that 10 parts by weight of spherical silica having an average particle diameter of 1.0 m was added as an inorganic filler, and a solder-resist composition was prepared, A multilayer printed wiring board was manufactured in the same manner as in Example 14. Comparative Example 7
- DMDG diethylene glycol dimethyl ether
- cresol Pollack type epoxy resin made by Nippon Kayaku Co., Ltd.
- photosensitive imparting oligomer 50% epoxy group was acrylated (molecular weight: 4000) 46.67 parts by weight, Bisphenol A type epoxy resin 80% by weight dissolved in methyl ethyl ketone (Epicoat 1001 manufactured by Yuka Seal Co., Ltd.) 6.67 parts by weight, imidazole hardener (Shikoku Chemicals Co., Ltd.) , 2E4MZ—CN) 1.6 parts by weight, photosensitive monomer bifunctional acrylic monomer (Nippon Kayaku Co., R604) 4.5 parts by weight, also polyvalent acrylic monomer (Kyoei Chemical Co., Ltd.) , DPE 6A) 1.5 parts by weight, a leveling agent composed of an acrylic ester polymer (Kyoei Chemical Co., Ltd., Polymethyl methyl ketone
- a multilayer printed wiring board was manufactured in the same manner as in Example 15 except that the same solder resist composition as in Comparative Example 1 was prepared as the solder resist composition.
- the flame retardancy, the opening property, the occurrence of peeling between the solder resist layer and the conductor circuit were determined by the following method. Evaluate the presence or absence of cracks in the solder resist layer, The results are shown in Table 3.
- a multilayer printed wiring board is cut and subjected to a flame retardancy test by the vertical method, and evaluated according to the following evaluation criteria.
- the dimensions of the test piece were 12.7 mm x 127 mm x the specified thickness.
- an opening was formed in the solder resist layer, and after hardening, the shape of the opening was observed with a microscope before forming a plating layer on the opening.
- the section of the multilayer printed wiring board where the solder bumps are formed is cut, and the cut cross section is observed with a microscope to obtain a cross section of the opening formed in the solder resist layer.
- the shape is observed with a microscope, and evaluated according to the following evaluation criteria.
- ⁇ The shape of the opening in plan view is desired, and there is no resin residue on the surface of the conductive circuit exposed from the opening.
- X The shape of the opening is tapered, and there is resin remaining on the surface of the conductor circuit exposed from the opening, or no opening.
- the multilayer printed wiring board is cut, and its cross section is microscopically observed to observe whether or not peeling has occurred between the solder resist layer and the conductor circuit. Observe whether cracks occur in the solder resist layer.
- a heat cycle test of the above multilayer printed wiring board was repeated 100 ° times, in which the cycle was maintained at 165 ° C for 3 minutes and then maintained at 130 ° C for 3 minutes. Then, in the same manner as above, the solder resist layer and the conductor Observe whether peeling has occurred between the circuit and the circuit, and observe whether cracks have occurred in the solder resist layer.
- the multilayer printed wiring board manufactured in Example 14 17 passed the criteria of 94 V-0 in the UL 94 test standard.
- the solder resist layer formed on the multilayer printed wiring board has excellent opening properties, and does not generate cracks or peel off from the conductor circuit.
- the multilayer printed wiring board manufactured in Comparative Example 78 did not pass the criteria of 94 V-0 because of the long burning time, and was inferior in flame retardancy.
- the multilayer printed wiring board of the first invention of the first group of the present invention since the solder resist layer of the multilayer printed wiring board contains the inorganic filler, the linear expansion coefficient is reduced.
- the manufacturing process of the printed wiring board for example, after mounting electronic components such as IC chips on the printed wiring board, to prevent the occurrence of cracks and the like due to the difference in thermal expansion between the solder resist layer and other parts. Can be.
- solder resist composition of the second invention of the present invention since the solder-resist composition contains an inorganic filler, the use of this solder resist composition As a result, a solder resist layer containing an inorganic filler can be formed on the printed wiring board, and as a result, in a manufacturing process of a multilayer printed wiring board, due to a difference in thermal expansion between the solder resist layer and other portions. Kula It is possible to prevent occurrence of a lock or the like.
- the multilayer printed wiring board of the first invention of the first group of the present invention can be suitably manufactured. .
- the solder resist layer of the multilayer printed wiring board contains one elastomer component
- the solder resist layer of the multilayer printed wiring board is It can absorb or relieve the stress acting on the layers, and the manufacturing process of the multilayer printed wiring board. After mounting the IC chip on the multilayer printed wiring board, the heat between the solder resist layer and other parts Cracks and the like due to the difference in expansion hardly occur, and even when cracks occur, the cracks do not grow significantly.
- the solder resist composition of the second invention of the present invention since the solder resist composition contains one component of the elastomer, the solder resist composition is used. By doing so, it is possible to form a solder resist layer containing an elastomer component on the multilayer printed wiring board, and as a result, in the manufacturing process of the multilayer printed wiring board, etc., the heat of the solder resist layer and other parts is reduced. Cracks and the like due to the difference in expansion hardly occur, and even when cracks occur, the cracks do not grow significantly.
- the multilayer printed wiring board of the first invention of the second group of the present invention can be suitably manufactured.
- the third group of multilayer printed wiring boards according to the first invention of the present invention has a low dielectric constant at 1 GHz of the solder resist layer of 3.0 or less, so that when a high frequency signal in the GHz band is used. Also, signal delays and signal errors are less likely to occur.
- the third group of the multilayer printed wiring board of the second invention of the present invention uses a polyolefin resin as the solder resist layer, even when a high-frequency signal in the GHz band is used, the signal delay is reduced. And signal errors are less likely to occur.
- a third group of semiconductor devices according to the third invention of the present invention uses a polyolefin resin as a solder resist layer and a polyolefin resin as an interlayer resin insulation layer. Because of the use of resin, the dielectric constant and the dielectric loss tangent are small. Therefore, even in a semiconductor device equipped with an IC chip or the like using a high-frequency signal in the GHz band, signal delay and signal error hardly occur. ,.
- the multilayer printed wiring board according to the first invention of the fourth group of the present invention has a dielectric loss tangent at 1 GHz of the solder resist layer of 0.01 or less, so that a high frequency signal in the GHz band is used. Also, signal delay and signal error are less likely to occur.
- the multilayer printed wiring board of the second invention of the fourth group of the present invention uses a polyphenylene ether resin as the solder resist layer, so that even when a high frequency signal in the GHz band is used, Signal delay and signal error hardly occur.
- the semiconductor device according to the third invention of the fourth group of the present invention uses a polyphenylene ether resin as the solder resist layer and uses a polyphenylene ether resin or the like as the interlayer resin insulating layer.
- dielectric constant and the dielectric loss tangent is small, even in the semiconductor device including an IC chip or the like using a high-frequency signal of GH Z band for the signal delay and signal errors is less likely to occur.
- the fifth group of multilayer printed wiring boards of the present invention has excellent flame retardancy, high adhesion between the solder resist layer and the conductor circuit, and has a solder resist layer in which openings of a desired shape are formed.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00948266A EP1211920B1 (en) | 1999-08-12 | 2000-07-28 | Multilayer printed wiring board and method for manufacturing multilayer printed wiring board |
US10/049,270 US7916492B1 (en) | 1999-08-12 | 2000-07-28 | Multilayered printed circuit board |
DE60044974T DE60044974D1 (de) | 1999-08-12 | 2000-07-28 | Mehrschichtige leiterplatte und leiterplatten-herstellungsmethode |
US11/838,365 US7910836B2 (en) | 1999-08-12 | 2007-08-14 | Multilayered printed circuit board, solder resist composition, and semiconductor device |
US12/685,190 US20100163288A1 (en) | 1999-08-12 | 2010-01-11 | Multilayered printed circuit board |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/228852 | 1999-08-12 | ||
JP22885299A JP2001053448A (ja) | 1999-08-12 | 1999-08-12 | プリント配線板、ソルダーレジスト樹脂組成物およびプリント配線板の製造方法 |
JP11230875A JP2001057466A (ja) | 1999-08-17 | 1999-08-17 | プリント配線板、ソルダーレジスト樹脂組成物およびプリント配線板の製造方法 |
JP11/230875 | 1999-08-17 | ||
JP26693299A JP2001094263A (ja) | 1999-09-21 | 1999-09-21 | 多層プリント配線板および半導体装置 |
JP11/266932 | 1999-09-21 | ||
JP11/269320 | 1999-09-22 | ||
JP26932099A JP2001094239A (ja) | 1999-09-22 | 1999-09-22 | 多層プリント配線板および半導体装置 |
JP2000102769A JP4535559B2 (ja) | 2000-04-04 | 2000-04-04 | 多層プリント配線板 |
JP2000/102769 | 2000-04-04 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/049,270 A-371-Of-International US7916492B1 (en) | 1999-08-12 | 2000-07-28 | Multilayered printed circuit board |
US11/838,365 Division US7910836B2 (en) | 1999-08-12 | 2007-08-14 | Multilayered printed circuit board, solder resist composition, and semiconductor device |
US12/685,190 Division US20100163288A1 (en) | 1999-08-12 | 2010-01-11 | Multilayered printed circuit board |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001013686A1 true WO2001013686A1 (fr) | 2001-02-22 |
Family
ID=27529834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/005044 WO2001013686A1 (fr) | 1999-08-12 | 2000-07-28 | Carte de circuits imprimes multicouches, composition d'epargne de soudage, procede de fabrication de ladite carte imprimee et dispositif semi-conducteur |
Country Status (6)
Country | Link |
---|---|
US (3) | US7916492B1 (ja) |
EP (4) | EP1211920B1 (ja) |
CN (3) | CN101925260A (ja) |
DE (2) | DE60044974D1 (ja) |
TW (5) | TWI233327B (ja) |
WO (1) | WO2001013686A1 (ja) |
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- 2000-07-28 CN CN2010102609251A patent/CN101925260A/zh active Pending
- 2000-07-28 EP EP00948266A patent/EP1211920B1/en not_active Expired - Lifetime
- 2000-07-28 DE DE60044974T patent/DE60044974D1/de not_active Expired - Lifetime
- 2000-07-28 EP EP08022342A patent/EP2053909B1/en not_active Expired - Lifetime
- 2000-07-28 DE DE60045173T patent/DE60045173D1/de not_active Expired - Lifetime
- 2000-07-28 EP EP08021282A patent/EP2053908B1/en not_active Expired - Lifetime
- 2000-07-28 WO PCT/JP2000/005044 patent/WO2001013686A1/ja active Application Filing
- 2000-07-28 CN CNB2004100632489A patent/CN100387103C/zh not_active Expired - Fee Related
- 2000-07-28 US US10/049,270 patent/US7916492B1/en not_active Expired - Fee Related
- 2000-07-28 CN CN00814075.8A patent/CN1378769A/zh active Pending
- 2000-07-28 EP EP08020481A patent/EP2028915A1/en not_active Withdrawn
- 2000-08-11 TW TW089116155A patent/TWI233327B/zh not_active IP Right Cessation
- 2000-08-11 TW TW093103132A patent/TWI235633B/zh not_active IP Right Cessation
- 2000-08-11 TW TW093103131A patent/TWI236327B/zh not_active IP Right Cessation
- 2000-08-11 TW TW093103130A patent/TWI235632B/zh not_active IP Right Cessation
- 2000-08-11 TW TW093103129A patent/TWI236317B/zh not_active IP Right Cessation
-
2007
- 2007-08-14 US US11/838,365 patent/US7910836B2/en not_active Expired - Fee Related
-
2010
- 2010-01-11 US US12/685,190 patent/US20100163288A1/en not_active Abandoned
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8030579B2 (en) | 2001-03-14 | 2011-10-04 | Ibiden Co., Ltd. | Multilayer printed wiring board |
US8324512B2 (en) | 2001-03-14 | 2012-12-04 | Ibiden Co., Ltd. | Multilayer printed wiring board |
US9040843B2 (en) | 2001-03-14 | 2015-05-26 | Ibiden Co., Ltd. | Multilayer printed wiring board |
US8161637B2 (en) | 2009-07-24 | 2012-04-24 | Ibiden Co., Ltd. | Manufacturing method for printed wiring board |
US9113562B2 (en) | 2009-07-24 | 2015-08-18 | Ibiden Co., Ltd. | Manufacturing method for printed wiring board |
Also Published As
Publication number | Publication date |
---|---|
EP2053908B1 (en) | 2011-12-21 |
US7916492B1 (en) | 2011-03-29 |
TW200410606A (en) | 2004-06-16 |
TWI236327B (en) | 2005-07-11 |
TWI235633B (en) | 2005-07-01 |
EP1211920A4 (en) | 2007-02-28 |
TW200410622A (en) | 2004-06-16 |
CN100387103C (zh) | 2008-05-07 |
TWI233327B (en) | 2005-05-21 |
DE60044974D1 (de) | 2010-10-28 |
CN1378769A (zh) | 2002-11-06 |
EP2053908A1 (en) | 2009-04-29 |
EP1211920B1 (en) | 2010-09-15 |
TW200410618A (en) | 2004-06-16 |
US20080041615A1 (en) | 2008-02-21 |
US20100163288A1 (en) | 2010-07-01 |
TW200410623A (en) | 2004-06-16 |
EP1211920A1 (en) | 2002-06-05 |
TWI235632B (en) | 2005-07-01 |
US7910836B2 (en) | 2011-03-22 |
CN1553761A (zh) | 2004-12-08 |
CN101925260A (zh) | 2010-12-22 |
TWI236317B (en) | 2005-07-11 |
EP2028915A1 (en) | 2009-02-25 |
DE60045173D1 (de) | 2010-12-09 |
EP2053909A1 (en) | 2009-04-29 |
EP2053909B1 (en) | 2010-10-27 |
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