WO2006025240A1 - 2層フレキシブル基板及びその製造方法 - Google Patents
2層フレキシブル基板及びその製造方法 Download PDFInfo
- Publication number
- WO2006025240A1 WO2006025240A1 PCT/JP2005/015363 JP2005015363W WO2006025240A1 WO 2006025240 A1 WO2006025240 A1 WO 2006025240A1 JP 2005015363 W JP2005015363 W JP 2005015363W WO 2006025240 A1 WO2006025240 A1 WO 2006025240A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- film
- metal layer
- base metal
- flexible substrate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
-
- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/388—Improvement of the adhesion between the insulating substrate and the metal by the use of a metallic or inorganic thin film adhesion layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0393—Flexible materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
Definitions
- the present invention relates to a two-layer flexible substrate and a method for manufacturing the same, and more specifically, a nickel chromium molybdenum base metal layer (seed layer) on an insulator film by a dry plating method.
- the two-layer flexible substrate having a high adhesion and corrosion resistance and high insulation reliability, and a method for manufacturing the same. It is about.
- a substrate used to produce a flexible wiring board is a three-layer flexible substrate in which a copper foil serving as a conductor layer is bonded onto an insulator film using an adhesive (for example, see Patent Document 1) And a two-layer flexible substrate in which a copper coating layer as a conductor layer is directly formed on the insulator film by a dry plating method or a wet plating method without using an adhesive.
- a three-layer flexible wiring board in the case of using a three-layer flexible substrate, can be manufactured by forming a desired wiring pattern on the substrate by a subtractive method.
- a two-layer flexible wiring board can be manufactured by forming a desired wiring pattern on the substrate by a subtractive method or an additive method, but in the past, the manufacturing method was simple.
- the use of three-layer flexible substrates that can be manufactured at low cost was the mainstream.
- the wiring pitch width Therefore, as long as a three-layer flexible board is used that has been bonded to an insulator film with a 35-m-thick copper foil, which is commonly used in the past, the wiring section on the wiring board is used. There was a limit to narrowing the pitch.
- a two-layer flexible wiring board using a two-layer flexible substrate that can form a copper coating layer directly on an insulator film without applying an adhesive has attracted attention.
- the substrate forms a copper conductor layer directly on the insulator film without an adhesive. Therefore, the thickness of the substrate itself can be reduced, and the thickness of the copper conductor film to be deposited can be set to an arbitrary thickness. It has the advantage that it can be adjusted.
- an electric copper plating method is usually used as a means for forming a copper conductor layer having a uniform thickness on an insulator film.
- a metal layer is formed to impart conductivity to the entire surface, and an electrolytic copper plating process is performed thereon (see, for example, Patent Document 2).
- the thickness of the copper conductive coating required for wiring is generally considered to be more than 35 m and up to 50 m. Since it is about 100 m, it was a little difficult to cause defects in the wiring part due to the presence of pinholes of several tens / zm.
- the thickness of the copper film for forming the wiring portion as described above is 18 ⁇ m or less, preferably 8 ⁇ m or less, and ideally a very thin thickness of about 5 ⁇ m.
- a flexible wiring board is manufactured by, for example, a subtractive method using a two-layer flexible substrate in which a copper coating layer having a desired thickness is formed on an insulator film on which a base metal layer is formed.
- the wiring pattern is formed in the following process.
- a resist layer having a desired wiring portion pattern is provided on the copper conductor layer so that only the wiring portion is masked and the copper conductor layer of the non-wiring portion is exposed. (2) The exposed copper conductor layer (3) Finally, the resist layer is stripped and removed.
- a substrate with a very thin copper coating layer such as 5 m
- a wiring with a narrow wiring width and narrow wiring pitch such as a wiring width of 15 m and a wiring pitch of 30 m.
- the coarse pinholes generated in the base metal layer of the substrate by the dry plating process reach a size on the order of several tens to several hundreds of ⁇ m.
- an electro copper plating film with a thickness of about 5 m is formed, the exposed portion of the insulator film due to pinholes can hardly be filled.
- a missing portion of the conductor layer is applied to the wiring portion, and the wiring portion is missing at the position of the pinhole, resulting in a wiring defect, or otherwise, it causes a poor adhesion of the wiring portion.
- a base metal layer is formed on an insulator film by a dry plating method, and a copper coating layer by electroless plating is further applied as an intermediate metal layer, and a pinhole is used.
- a method for covering an exposed portion of an insulating film has been proposed (see, for example, Patent Document 3).
- Patent Document 4 a polymer film having a plasma-treated surface, a nickel tie-coat layer containing nickel or a nickel alloy attached to the plasma-treated surface, and the nickel layer A non-adhesive flexible laminate that includes a copper coat layer attached to the copper coat and another copper layer attached to the copper coat layer has been proposed, and the metals for nickel alloys are Cu, Cr, Fe, V, Ti
- a nickel tie coat layer selected from the group consisting of Al, Si, Pd, Ta, W, Zn, In, Sn, Mn, Co, and a mixture of two or more of these is described.
- Ni alloys include Monel (about 67% Ni, 30% Cu), Inconel (about 76% Ni, 16% Cr, 8% Fe).
- the resulting laminate film is shown to have excellent initial peel strength, peel strength after solder float, and peel strength after thermal cycling! No mention is made.
- Patent Document 5 the heat resistance adhesion at the polyimide Z metal interface on the polyimide side of a copper-clad polyimide film obtained by applying and curing a polyimide varnish on a copper foil is improved.
- a polyimide, nickel, chromium, molybdenum, tungsten, vanadium, titanium, and manganese power group power of at least one selected metal Form a thin layer by vacuum deposition
- a second thin layer of copper having a predetermined thickness is formed on the second thin film by a vacuum film-forming method, and a third thin layer of copper having a predetermined thickness is formed on the second thin layer at a predetermined current density.
- the chrome strength is not shown as the first thin layer in the examples, and the description of the good properties of the composite metal film is It has been,
- Patent Document 6 also provides a flexible printed wiring board that is excellent in interlayer adhesion, heat resistance, chemical resistance, bending resistance, and electrical characteristics, and is highly reliable and inexpensive.
- a deposited layer of nickel, conoretate, chromium, noradium, titanium, zirconium, molybdenum or tungsten on one or both sides of the plastic film and the deposited particle size on the deposited layer is 0.007. -0.
- Laminate a laminated body with an electron beam heat-deposited copper layer that has an aggregate strength in the range of 850 m to form a desired circuit, and a mask layer made of an insulating organic material that does not form a circuit.
- Patent Document 1 Japanese Patent Laid-Open No. 6-132628
- Patent Document 2 JP-A-8-139448
- Patent Document 3 Japanese Patent Laid-Open No. 10-195668
- Patent Document 4 Special Table 2000—508265
- Patent Document 5 JP-A-7-197239
- Patent Document 6 Japanese Patent Application Laid-Open No. 5-283848
- the present invention solves the above problems in the production of a flexible wiring board using a dry plating method and an electric plating method, and forms a base metal layer on an insulator film by a dry plating process.
- 2-layer flexible board with a copper coating layer with excellent insulation and corrosion resistance and high insulation reliability between the insulation film and the underlying metal layer, and its manufacture It is intended to provide a method.
- the inventors of the present invention form a base metal layer directly on at least one surface of the insulator film without using an adhesive, and form a copper conductor layer having a desired thickness on the base metal layer.
- the insulator film on being thickness 3 ⁇ 50nm formed by a dry-plating method, the rate force to 22 weight 0/0 of chromium, the proportion of molybdenum is the balance in the 5 to 40 weight 0/0 -
- the base metal layer mainly containing nickel-chromium-molybdenum alloy and a copper coating layer formed on the base metal layer are used to solve the above problems and adhere closely
- a two-layer flexible substrate with a copper conductor layer with high corrosion resistance and high insulation reliability can be obtained, and it can also be applied to flexible wiring boards with narrow and narrow pitch wiring parts And found the present invention.
- a base metal layer is directly formed on at least one surface of the insulator film without using an adhesive, and then a copper coating layer is formed on the base metal layer.
- the base metal layer is formed by a dry plating method.
- the nickel ratio is 4 to 22% by weight, the molybdenum ratio is 5 to 40% by weight, and the balance is nickel.
- the present invention provides a two-layer flexible substrate comprising a base metal layer having a thickness of 3 to 50 nm mainly containing
- the copper coating layer formed on the base metal layer has a film thickness of ⁇ !
- the present invention provides a two-layer flexible substrate according to the first invention, characterized by having a thickness of ⁇ 35 ⁇ m.
- the insulator film comprises a polyimide film, a polyamide film, a polyester film, a polytetrafluoroethylene film, a poly-phenylene sulfide film, a polyethylene naphthalate.
- the present invention provides a two-layer flexible substrate according to the first invention, which is a selected resin film.
- the fourth invention of the present invention is a two-layer structure in which an underlying metal layer is formed directly on at least one surface of an insulator film without using an adhesive, and then a copper coating layer is formed on the underlying metal layer.
- the method of manufacturing a flexi Bull substrate wherein on the insulator film, the proportion force of chromium to 22 by weight 0/0, the base metal layer of nickel-chromium molybdenum alloy balance nickel in a proportion of molybdenum 5 to 40 wt% Is formed by a dry plating method to a film thickness of 3 to 50 nm.
- the present invention provides a method for producing a two-layer flexible board characterized by forming a copper coating layer on a ground metal layer.
- the fifth invention of the present invention is characterized in that after the copper coating layer is formed by a dry plating method, a copper coating layer is further formed on the copper coating layer by a wet plating method.
- a method for producing a two-layer flexible substrate according to the fourth invention is provided.
- a sixth invention of the present invention is the two-layered invention according to the fourth or fifth invention, wherein the dry plating method is any one of a vacuum deposition method, a sputtering method, and an ion plating method.
- the dry plating method is any one of a vacuum deposition method, a sputtering method, and an ion plating method.
- a base metal layer is formed directly on at least one surface of the insulator film without using an adhesive, and a desired thickness is formed on the base metal layer.
- the two-layer flexible substrate forming a copper conductor layer Te per cent ⁇ , wherein on an insulator film, is a film thickness 3 ⁇ 50nm formed by a dry-plating method, the percentage strength of chromium to 22 weight 0/0, the molybdenum
- a two-layer flexible substrate characterized by forming a copper film layer of ⁇ 35 m can be obtained.
- the base metal layer contains chromium, it is possible to prevent a decrease in heat-resistant peel strength, and at the same time contain molybdenum. Therefore, it is possible to improve the corrosion resistance and the insulation reliability.
- the two-layer flexible substrate it is possible to have a highly reliable, narrow width, narrow pitch having a defect-free wiring portion with high adhesion and corrosion resistance. Since a flexible wiring board having a wiring portion can be obtained efficiently, the effect is extremely large.
- a base metal layer is directly formed on at least one surface of an insulator film without using an adhesive, and a copper conductor layer having a desired thickness is formed on the base metal layer.
- a layer flexible substrate, the insulator film on the proportion of O RimakuAtsu 3 ⁇ 50nm formed chromium dry-plating method 4 to 22 weight 0/0, the ratio of molybdenum 5-4 A base metal layer mainly containing a nickel-chromium-molybdenum alloy having a nickel content of 0% by weight and a copper coating layer formed on the base metal layer is characterized.
- the film thickness of the base metal layer mainly containing the nickel chromium molybdenum alloy obtained by the dry plating method is preferably in the range of 3 to 50 nm. If the film thickness is less than 3 nm, it is not preferable because an etching solution infiltrating the wiring force permeates into the wiring part and causes problems such as a significant reduction in wiring peel strength. Further, when the film thickness is thicker than 50 nm, since the etching is performed is difficult, undesirable Further, the composition of the lower ground metal layer, the proportion force to 22 weight 0/0 of chromium, the proportion of molybdenum 5 It should be 40% by weight with the balance being nickel.
- the ratio power of chromium it is necessary for the ratio power of chromium to be 22% by weight in order to prevent the heat-resistant peel strength from being significantly lowered due to thermal deterioration. If the ratio force is lower than the weight percentage of chromium, it is not preferable because the heat-resistant peel strength cannot be prevented from significantly lowering due to thermal deterioration. On the other hand, if the chromium content exceeds 22% by weight, etching becomes difficult, which is not preferable.
- chromium 4 to 15% by weight is more preferable, and 5 to 12% by weight is particularly preferable.
- the ratio of molybdenum it is necessary for the ratio of molybdenum to be 5 to 40% by weight in order to improve corrosion resistance and insulation reliability. If the proportion of molybdenum is less than 5% by weight, the effect of addition does not appear and corrosion resistance and insulation reliability are not improved, which is not preferable. Further, if the specific force of molybdenum exceeds 0% by weight, the heat-resistant peel strength tends to be extremely lowered, which is not preferable.
- the nickel ratio is greater than 93%, the sputtering target itself becomes a ferromagnet, and when film formation is performed by magnetron sputtering, the film formation speed decreases. Therefore, it is not preferable.
- the amount of nickel is 93% or less, so the magnetron sputtering method is used. Even when the film is formed, a good film formation rate can be obtained.
- a transition metal element can be appropriately added to the nickel-chromium-molybdenum alloy in accordance with the target characteristics for the purpose of improving heat resistance and corrosion resistance.
- the base metal layer may contain 1% by weight or less of unavoidable impurities contained by being taken in during the production of the target.
- bal. (Balance) is expressed as the amount of nickel including unavoidable impurities of 1 wt% or less.
- a copper coating layer formed on the underlying metal layer by a dry plating method and a copper coating layer formed on the copper coating layer by a wet plating method The film thickness of the combined copper coating layer is preferably 1011111 to 35111.
- the thickness is less than 1 Onm, the copper coating layer formed by the dry plating method becomes thin, so that it is difficult to supply power in the subsequent wet plating process. Also, if it is thicker than 35 m, the productivity is lowered, which is preferable.
- polyimide film polyamide film, polyester film, polytetrafluoroethylene film, polyphenylene sulfide film, polyethylene naphthalate film
- Polyimide film and polyamide film are preferable because they are suitable for applications requiring high-temperature connection such as solder reflow.
- the film having a film thickness of 8 to 75 m can be suitably used.
- An inorganic material such as glass fiber can be added as appropriate.
- any one of! / And a deviation from the vacuum deposition method, the sputtering method, or the ion plating method can be used.
- forming a copper coating layer on the copper coating layer by a wet plating method is relatively suitable for forming a film. Speak.
- the method for producing the two-layer flexible substrate of the present invention will be described in detail.
- it is selected from polyimide film, polyamide film, polyester film, polytetrafluoroethylene film, polyphenylene sulfide film, polyethylene naphthalate film, and liquid crystal polymer film.
- a base metal layer is directly formed on at least one surface of the insulator film, which is a resin film, without using an adhesive, and a copper conductor layer having a desired thickness is formed on the base metal layer.
- the film usually contains moisture.
- the moisture present in the film is dried by air drying or Z and vacuum drying. Need to be removed. If this is insufficient, the adhesion with the underlying metal layer will be poor.
- a base metal layer mainly containing a nickel chromium molybdenum alloy by a dry plating method
- an alloy target having the composition of the base metal layer Is attached to the sputtering force sword.
- a nickel-chromium alloy target and a molybdenum target can be attached to two force swords, and simultaneous sputtering can be performed to control the power applied to each force sword to obtain a base metal layer having a desired film composition. is there.
- a metal layer mainly containing nickel-chromium-molybdenum alloy on the film by supplying power from a DC power source for sputtering connected to a force sword while transporting the film at a speed of about 3 m / min. Is continuously formed.
- a base metal layer mainly containing a nickel chromium molybdenum alloy having a desired film thickness is formed on the film.
- a copper coating layer can be formed by a dry plating method using a sputtering apparatus in which a copper target is mounted on a sputtering force sword.
- the base metal layer and the copper film layer are preferably formed continuously in the same vacuum chamber.
- an electroless copper plating treatment or a secondary plating is performed as a primary plating.
- wet plating methods such as electrolytic copper plating are combined.
- the electroless copper plating process is performed as the primary plating.
- dry plating is performed by vapor deposition, coarse pinholes may be formed, and the resin film is exposed on the surface. Therefore, by forming an electroless copper plating layer on the entire surface of the substrate, the entire surface of the substrate is covered with a good conductor covering the exposed surface of the film, which can be affected by pinholes. This is to make it so.
- the electroless plating solution used for electroless plating is a reduction deposition in which the metal ions contained are autocatalytic and are reduced by a reducing agent such as hydrazine, sodium phosphinate, formalin, etc. Any type can be used, but for the purpose of the present invention, the purpose is to provide a good conductor on the exposed portion of the insulating film that is generated in the underlying metal layer and exposed by the pinhole.
- the electroless copper plating solution is optimal because of its good conductivity and relatively good workability.
- the thickness of the copper plating film layer by electroless copper plating treatment as a powerful primary plating is capable of repairing defects by pinholes on the substrate surface. If the thickness is such that it is not dissolved by the electrolytic copper plating solution when the sticking treatment is performed, the thickness is preferably in the range of 0.01 to L0 m.
- the electrolytic copper plating process is performed as a secondary plating on the electroless copper plating film layer in order to form a copper conductor layer having a desired thickness.
- the conditions in the conventional wet copper plating process may be employed for both the primary and secondary processes.
- the total thickness of the copper coating layer formed on the underlying metal layer by the dry type “wet plating method” needs to be 35 ⁇ m or less at the maximum.
- wiring patterns are individually formed on at least one surface of the two-layer flexible substrate.
- via holes for indirect layer connection can be formed at predetermined positions and used for various purposes.
- a high-density wiring pattern is individually formed on at least one side of the flexible sheet.
- a via hole penetrating the wiring layer and the flexible sheet is formed in the flexible sheet on which the wiring layer is formed.
- the via hole is filled with a conductive substance to make the hole conductive.
- a conventionally known method such as photoetching can be used.
- a two-layer flexible substrate having a copper coating layer formed on at least one surface is prepared, and screen printing is performed on the copper.
- screen printing is performed on the copper.
- the metal foil is selectively removed by etching with an etching solution such as ferric chloride solution, and then the resist is removed to form a predetermined wiring pattern.
- the wiring pattern is divided into several wiring areas depending on the distribution density of the wiring pattern. For example, the wiring pattern is divided into a high-density wiring area with a wiring width and wiring interval of 50 m or less and other wiring patterns. Divide into wiring areas and consider the thermal expansion difference from the printed circuit board and the convenience of handling. Set the size of the wiring board to be divided to about 10 to 65 mm and divide it appropriately.
- a conventionally known method can be used. For example, a via hole penetrating the wiring pattern and the flexible sheet is formed at a predetermined position of the wiring pattern by laser processing, photoetching, or the like. To do.
- the diameter of the via hole is preferably 100 / z m or less, and preferably 50 ⁇ m or less, preferably within a range that does not hinder the conductive property in the hole.
- the via hole is filled with a conductive metal such as copper by plating, vapor deposition, sputtering, or the like, or a conductive paste is pressed and dried using a mask having a predetermined opening pattern, and the inside of the hole is electrically conductive.
- a conductive metal such as copper by plating, vapor deposition, sputtering, or the like, or a conductive paste is pressed and dried using a mask having a predetermined opening pattern, and the inside of the hole is electrically conductive.
- the conductive metal examples include copper, gold, nickel, and the like.
- the peel strength was measured in accordance with IPC-TM-650, NUMBER2.4.9. However, the lead width was lmm and the peel angle was 90 °. Leads were formed by the sub-traactive method or the semi-additive method. In addition, as an index of heat resistance, the film substrate on which a 1 mm lead was formed was left in an oven at 150 ° C for 168 hours, taken out to room temperature, and then evaluated for 90 ° peel strength. It was done by doing.
- the etching property was basically confirmed by microscopic observation of the test piece. In addition, the insulation resistance value of the test piece was also measured. If the resistance value was 10 -6 ⁇ or less, it was considered that there was an etching residue between the leads, and the etching property was judged to be poor.
- the riHBT (High Temperature High Humidity Bias Test) test used in the urine resistance test is measured according to JPCA-ET04 using the above test piece and applying 40VDC between the terminals in an 85 ° C 85% RH environment. And observe lOOOhr resistance. Resistance is determined that the short-circuit failure at the time of equal to or less than 10 6 ⁇ , was judged to be acceptable if even 10 6 ⁇ or more after lOOOhr.
- Corrosion indicators include discoloration of the back surface, which was done by observing the back surface of the sample after the HHBT test. When significant discoloration was observed, it was judged as defective, and when discoloration was slight, it was judged as acceptable.
- a 38 ⁇ m thick polyimide film (product name “Kapton 150ENJ” manufactured by Toray DuPont) was cut into a size of 12 cm x 12 cm, and 4 wt% Cr—as the first layer of the underlying metal layer on one side Using a 20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.), a 4 wt% Cr-20 wt% Mo-Ni alloy base metal layer was deposited by direct current sputtering. The film thickness was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the result was 20 nm, and the film was further deposited on the NiCrMo film.
- TEM transmission electron microscope
- a copper coating layer was formed to a thickness of 200 nm by sputtering, and a thickness of 8 m was formed by electric plating.
- a raw material base material for evaluation was used.
- lmm leads for peel strength evaluation and 30 m pitch comb test pieces for HHBT testing were formed.
- the initial peel strength of the obtained two-layer flexible substrate was 640 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was as good as 510NZm.
- a 22 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used as the first layer of the base metal layer, and 22 wt% Cr-20 wt% Mo was formed by DC sputtering.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 623 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 597NZm, which is good without any significant change.
- 4 wt% Cr-5 wt% Mo-Ni alloy target (Sumitomo Gold) Material base material for evaluation in the same manner as in Example 1 except that a 4 wt% Cr-5 wt% Mo-Ni alloy base metal layer was formed by direct current sputtering using a metal mine) A part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm. This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method. The initial peel strength of the obtained two-layer flexible substrate was 63 INZm. The heat peel strength after standing in an oven at 150 ° C for 168 hours was as good as 505 NZm.
- TEM transmission electron microscope
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the two-layer flexible substrate obtained was 645 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was as good as 450 NZm.
- the first layer of the base metal layer a 15 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used, and by direct current sputtering, 15 wt% Cr-20 wt% Mo A raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 620 NZm.
- the heat peel strength after leaving in an oven at 150 ° C for 168 hours was 575 NZm, which was good without any significant change.
- a part of the film formed separately under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 30 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 660 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 560 NZm, which was good without much change.
- a 12 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used as the first layer of the base metal layer, and 12 wt% Cr-20 wt% Mo was formed by DC sputtering.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed and the film thickness was changed by changing the sputtering time.
- a part of the film formed separately under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.) to find a film thickness of 5 nm.
- TEM transmission electron microscope
- lmm leads for peel strength evaluation and 30 m pitch comb test pieces for HHBT testing were formed.
- the initial peel strength of the obtained two-layer flexible substrate was 620 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 590NZm, which was good without any significant change.
- a 10 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used as the first layer of the base metal layer, and 10 wt% Cr-20 wt% Mo was formed by DC sputtering.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed and the film thickness was changed by changing the sputtering time to be shorter.
- a part of the film formed separately under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 3 nm.
- TEM transmission electron microscope
- the initial peel strength of the obtained two-layer flexible substrate was 632 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 577NZm, which was good without much change. Insulation reliability tests were performed on three samples, but no deterioration was observed in V and deviation. Moreover, there was no etching residue and the etching property was good. Furthermore, no change was observed in the corrosion resistance test (discoloration of the back side of the film after being left in an 85 ° C 85% RH constant temperature bath for 1000 hours).
- a part of the film formed separately under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.) to find a film thickness of 50 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the obtained two-layer flexible substrate had an initial peel strength of 613 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 595NZm, which is good without any significant change.
- Example 2 In the same manner as in Example 1, a 20 nm thick NiCrMo film was formed. Furthermore, as a second layer, a Cu target (made by Sumitomo Metal Mining Co., Ltd.) was used as the second layer, and a copper film layer was formed to a thickness of 1 ⁇ m by sputtering, and the thickness of the copper layer was 8 ⁇ m. The film was used as a raw material substrate for evaluation. This substrate cap also formed lmm leads for peel strength evaluation and 30 ⁇ m pitch comb-teeth specimens for HHBT testing by the sub-tratat method.
- a Cu target made by Sumitomo Metal Mining Co., Ltd.
- the initial peel strength of the obtained two-layer flexible substrate was 610 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 547 NZm, which was good without any significant change. Insulation reliability tests were performed on three samples, but no deterioration was observed in V and deviation. Moreover, the etching property was also good. Furthermore, no change was observed in the corrosion resistance test (discoloration of the back side of the film after being left for 1000 hours in a 85 ° C 85% RH constant temperature bath).
- Example 2 In the same manner as in Example 1, a 20 nm thick NiCrMo film was formed. Further, as a second layer, a Cu target layer (manufactured by Sumitomo Metal Mining Co., Ltd.) was used, and a copper coating layer was formed up to 8 / zm by a sputtering method, and used as a raw material substrate for evaluation. This substrate cap was also formed into a lmm lead for peel strength evaluation and a 30 m pitch comb test piece for HHBT testing by the sub-tratat method.
- a Cu target layer manufactured by Sumitomo Metal Mining Co., Ltd.
- This substrate cap was also formed into a lmm lead for peel strength evaluation and a 30 m pitch comb test piece for HHBT testing by the sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 630 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 565NZm, which was good without any significant change.
- a NiCrMo film having a thickness of 20 nm was formed in the same manner as in Example 1. Furthermore, using a Cu target (manufactured by Sumitomo Metal Mining Co., Ltd.) as a second layer, a copper coating layer was formed to 500 nm by sputtering, and an lmm lead for peel strength evaluation was formed from this substrate. A 30 ⁇ m pitch comb test piece for HHBT test was formed by thickening to 8 ⁇ m by the semi-additive method.
- the initial peel strength of the obtained two-layer flexible substrate was 605 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 535 NZm, which was good with no significant change.
- Example 13 A raw material substrate for evaluation was performed in the same manner as in Example 1 except that an aromatic polyamide film having a thickness of 12 m (product name “ALAMICA 120RC” manufactured by Teijin Advanced Films Ltd.) was used as the film. Got.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 600 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was as good as 500NZm without any significant change.
- the first layer of the base metal layer a 3 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used, and 3 wt% Cr-20 wt% by DC sputtering.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Mo—Ni alloy base metal layer was formed.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 630 NZm.
- the heat-resistant peel strength after standing in an oven at 150 ° C for 168 hours was greatly reduced to 380 NZm. Insulation reliability tests were performed on three samples, but no deterioration was observed in V and deviation. Moreover, there was no etching residue and the etching property was good. Furthermore, no change was observed in the corrosion resistance test (discoloration of the back side of the film after being left in an 85 ° C 85% RH constant temperature bath for 1000 hours).
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 632 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 586 NZm, a good result with no significant change.
- the insulation reliability test was performed on 3 samples, and in 2 samples, the base metal layer could not be etched with salt iron etching, and leads with a pitch of 30 m could not be formed.
- the corrosion resistance test (discoloration of the back side of the film after being left for 1000 hours in a 85 ° C 85% RH constant temperature bath), there was no change in the back side of the film.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 6 lONZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 560 NZm, which was good without much change.
- a 10 wt% Cr-44 wt% Mo was formed by DC sputtering using a 10 wt% Cr-44 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) as the first layer of the base metal layer.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 20 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 635 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was greatly reduced to 250 NZm. Insulation reliability tests were performed on three samples, but no deterioration was observed in V and deviation. Moreover, etching property was favorable. Furthermore, no change was observed in the corrosion resistance test (discoloration of the back side of the film after being left for 1000 hours in a 85 ° C 85% RH constant temperature bath).
- a 10 wt% Cr-20 wt% Mo was formed by DC sputtering using a 10 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) as the first layer of the base metal layer.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that the Ni alloy base metal layer was formed and the film thickness was changed by changing the sputtering time to be shorter than that of Example 8. .
- a part of the film formed separately under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.) to find a film thickness of 2 nm.
- a 10 wt% Cr-20 wt% Mo-Ni alloy target (manufactured by Sumitomo Metal Mining Co., Ltd.) was used as the first layer of the base metal layer, and 10 wt% Cr-20 wt% Mo was formed by DC sputtering.
- a raw material substrate for evaluation was obtained in the same manner as in Example 1 except that a Ni alloy base metal layer was formed and the film thickness was changed by making the sputtering time longer than that in Example 9.
- a part of the film formed under the same conditions was measured with a transmission electron microscope (TEM: manufactured by Hitachi, Ltd.), and the film thickness was 53 nm.
- This substrate cap was also formed by lmm lead for peel strength evaluation and 30m pitch comb test piece for HHBT test by sub-tratat method.
- the initial peel strength of the obtained two-layer flexible substrate was 618 NZm.
- the heat peel strength after standing in an oven at 150 ° C for 168 hours was 566NZm, which is good without any significant change.
- a base metal layer is formed directly on at least one surface of an insulator film without using an adhesive, and the base metal Form a copper conductor layer of a desired thickness on the layer Over a two-layer flexible substrate, a ratio force of chromium formed on the insulator film by a dry plating method to a thickness of 3 to 50 nm weight 0/0, the ratio is the balance of nickel 5 to 40 wt% molybdenum, and the underlying metal layer containing mainly nickel-chromium-molybdenum alloy, a copper coating layer having a thickness of lOnm ⁇ 35 m on the lower ground metal layer According to the two-layer flexible substrate of the present invention, since the base metal layer contains chromium, it is possible to prevent the heat-resistant peel strength from being lowered, and at the same time, molybdenum is added.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
- Physical Vapour Deposition (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006531950A JP4605511B2 (ja) | 2004-09-01 | 2005-08-24 | 2層フレキシブル基板及びその製造方法 |
US11/661,308 US20080090095A1 (en) | 2004-09-01 | 2005-08-24 | Adhesiveless Copper Clad Laminates And Method For Manufacturing Thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-254941 | 2004-09-01 | ||
JP2004254941 | 2004-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006025240A1 true WO2006025240A1 (ja) | 2006-03-09 |
Family
ID=35999897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015363 WO2006025240A1 (ja) | 2004-09-01 | 2005-08-24 | 2層フレキシブル基板及びその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080090095A1 (ja) |
JP (1) | JP4605511B2 (ja) |
KR (1) | KR100858309B1 (ja) |
CN (1) | CN100566505C (ja) |
WO (1) | WO2006025240A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011100846A (ja) * | 2009-11-05 | 2011-05-19 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板とその製造方法、2層フレキシブル配線板とその製造方法並びにプラズマ処理装置 |
JP2014185393A (ja) * | 2013-02-20 | 2014-10-02 | Hitachi Metals Ltd | 金属薄膜および金属薄膜形成用Mo合金スパッタリングターゲット材 |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102792786B (zh) * | 2010-03-16 | 2015-11-25 | 住友金属矿山株式会社 | 2层挠性基板及其制造方法 |
JP5746866B2 (ja) * | 2011-01-05 | 2015-07-08 | Jx日鉱日石金属株式会社 | 銅張積層板及びその製造方法 |
JP6083433B2 (ja) * | 2012-04-24 | 2017-02-22 | 住友金属鉱山株式会社 | 2層フレキシブル配線用基板及びフレキシブル配線板並びにそれらの製造方法 |
CN102717554B (zh) * | 2012-07-02 | 2015-08-19 | 武汉光谷创元电子有限公司 | 一种两层型挠性覆铜板 |
JP5521130B1 (ja) * | 2012-08-30 | 2014-06-11 | パナソニック株式会社 | 電子部品パッケージおよびその製造方法 |
JP5651807B2 (ja) | 2012-09-05 | 2015-01-14 | パナソニックIpマネジメント株式会社 | 半導体装置およびその製造方法 |
KR101357141B1 (ko) * | 2012-09-27 | 2014-02-03 | 엘에스엠트론 주식회사 | 연성회로 동장 적층판과 이를 이용한 인쇄회로 기판 및 그 제조 방법 |
KR101421701B1 (ko) | 2012-09-27 | 2014-07-22 | 엘에스엠트론 주식회사 | 연성회로 동장 적층판과 이를 이용한 인쇄회로 기판 및 그 제조 방법 |
TWI568865B (zh) * | 2013-10-23 | 2017-02-01 | Sumitomo Metal Mining Co | Layer 2 flexible wiring substrate and manufacturing method thereof, and two-layer flexible wiring board and manufacturing method thereof |
WO2016039314A1 (ja) * | 2014-09-09 | 2016-03-17 | 住友電気工業株式会社 | プリント配線板用基材、プリント配線板及びプリント配線板用基材の製造方法 |
CN104968158A (zh) * | 2015-06-03 | 2015-10-07 | 洛阳伟信电子科技有限公司 | 一种厚铜箔细线路微间距电路板外层线路加工方法 |
JP6724775B2 (ja) * | 2016-12-28 | 2020-07-15 | 凸版印刷株式会社 | 配線基板の個片化方法及びパッケージ用基板 |
CN110049618A (zh) * | 2018-01-15 | 2019-07-23 | 达迈科技股份有限公司 | 用于金属化的聚酰亚胺膜、基板结构及电路基板 |
US11342256B2 (en) * | 2019-01-24 | 2022-05-24 | Applied Materials, Inc. | Method of fine redistribution interconnect formation for advanced packaging applications |
IT201900006736A1 (it) | 2019-05-10 | 2020-11-10 | Applied Materials Inc | Procedimenti di fabbricazione di package |
IT201900006740A1 (it) | 2019-05-10 | 2020-11-10 | Applied Materials Inc | Procedimenti di strutturazione di substrati |
US11931855B2 (en) | 2019-06-17 | 2024-03-19 | Applied Materials, Inc. | Planarization methods for packaging substrates |
JP6706013B1 (ja) * | 2019-10-02 | 2020-06-03 | 住友金属鉱山株式会社 | 銅張積層板および銅張積層板の製造方法 |
US11862546B2 (en) | 2019-11-27 | 2024-01-02 | Applied Materials, Inc. | Package core assembly and fabrication methods |
US11257790B2 (en) | 2020-03-10 | 2022-02-22 | Applied Materials, Inc. | High connectivity device stacking |
US11454884B2 (en) | 2020-04-15 | 2022-09-27 | Applied Materials, Inc. | Fluoropolymer stamp fabrication method |
US11400545B2 (en) | 2020-05-11 | 2022-08-02 | Applied Materials, Inc. | Laser ablation for package fabrication |
US11232951B1 (en) | 2020-07-14 | 2022-01-25 | Applied Materials, Inc. | Method and apparatus for laser drilling blind vias |
US11676832B2 (en) | 2020-07-24 | 2023-06-13 | Applied Materials, Inc. | Laser ablation system for package fabrication |
US11521937B2 (en) | 2020-11-16 | 2022-12-06 | Applied Materials, Inc. | Package structures with built-in EMI shielding |
US11404318B2 (en) | 2020-11-20 | 2022-08-02 | Applied Materials, Inc. | Methods of forming through-silicon vias in substrates for advanced packaging |
US11705365B2 (en) | 2021-05-18 | 2023-07-18 | Applied Materials, Inc. | Methods of micro-via formation for advanced packaging |
CN113692111B (zh) * | 2021-08-24 | 2022-08-23 | 江苏耀鸿电子有限公司 | 一种高耐蚀性柔性覆铜板及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09165635A (ja) * | 1996-10-22 | 1997-06-24 | Mitsubishi Materials Corp | 耐食性のすぐれた物理蒸着非晶質膜材 |
JPH1065316A (ja) * | 1996-08-23 | 1998-03-06 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板の製造方法 |
JPH1065311A (ja) * | 1996-08-23 | 1998-03-06 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板の製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857683A (en) * | 1973-07-27 | 1974-12-31 | Mica Corp | Printed circuit board material incorporating binary alloys |
US6171714B1 (en) * | 1996-04-18 | 2001-01-09 | Gould Electronics Inc. | Adhesiveless flexible laminate and process for making adhesiveless flexible laminate |
JPWO2002067641A1 (ja) * | 2001-02-21 | 2004-06-24 | 鐘淵化学工業株式会社 | 配線基板およびその製造方法、並びに該配線基板に用いられるポリイミドフィルムおよび該製造方法に用いられるエッチング液 |
CN1211001C (zh) * | 2001-12-18 | 2005-07-13 | 黄堂杰 | 软性电路基板及其制造方法 |
JP4008388B2 (ja) * | 2003-06-30 | 2007-11-14 | シャープ株式会社 | 半導体キャリア用フィルムおよびそれを用いた半導体装置、液晶モジュール |
-
2005
- 2005-08-24 WO PCT/JP2005/015363 patent/WO2006025240A1/ja active Application Filing
- 2005-08-24 CN CNB2005800345307A patent/CN100566505C/zh active Active
- 2005-08-24 US US11/661,308 patent/US20080090095A1/en not_active Abandoned
- 2005-08-24 JP JP2006531950A patent/JP4605511B2/ja active Active
- 2005-08-24 KR KR1020077005040A patent/KR100858309B1/ko active IP Right Grant
-
2010
- 2010-08-24 US US12/805,919 patent/US8318320B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1065316A (ja) * | 1996-08-23 | 1998-03-06 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板の製造方法 |
JPH1065311A (ja) * | 1996-08-23 | 1998-03-06 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板の製造方法 |
JPH09165635A (ja) * | 1996-10-22 | 1997-06-24 | Mitsubishi Materials Corp | 耐食性のすぐれた物理蒸着非晶質膜材 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011100846A (ja) * | 2009-11-05 | 2011-05-19 | Sumitomo Metal Mining Co Ltd | 2層フレキシブル基板とその製造方法、2層フレキシブル配線板とその製造方法並びにプラズマ処理装置 |
JP2014185393A (ja) * | 2013-02-20 | 2014-10-02 | Hitachi Metals Ltd | 金属薄膜および金属薄膜形成用Mo合金スパッタリングターゲット材 |
Also Published As
Publication number | Publication date |
---|---|
US20080090095A1 (en) | 2008-04-17 |
US8318320B2 (en) | 2012-11-27 |
US20110059334A1 (en) | 2011-03-10 |
JP4605511B2 (ja) | 2011-01-05 |
CN100566505C (zh) | 2009-12-02 |
CN101040571A (zh) | 2007-09-19 |
KR100858309B1 (ko) | 2008-09-11 |
KR20070041608A (ko) | 2007-04-18 |
JPWO2006025240A1 (ja) | 2008-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4605511B2 (ja) | 2層フレキシブル基板及びその製造方法 | |
JP4968266B2 (ja) | 2層フレキシブル基板とその製造方法及び該2層フレキシブル基板より得られたフレキシブルプリント配線基板 | |
JP3888587B2 (ja) | フレキシブル基板のエッチング方法 | |
WO2017110404A1 (ja) | キャリア付銅箔、樹脂付銅箔、及びプリント配線板の製造方法 | |
JP4525682B2 (ja) | 2層フレキシブル基板及びその製造方法 | |
US6544664B1 (en) | Copper foil for printed wiring board | |
CN101014231A (zh) | 柔性覆金属箔层压板及其制造方法 | |
JP2008162245A (ja) | メッキ法2層銅ポリイミド積層フィルムおよびその製造方法 | |
JP4924843B2 (ja) | 2層フレキシブル基板及びその製造方法、並びに、該2層フレキシブル基板を用いたプリント配線基板及びその製造方法 | |
KR101363771B1 (ko) | 2층 플렉시블 기판 및 그 제조 방법 | |
JP2007069561A (ja) | 2層フレキシブル基板とその製造方法 | |
JP2004031588A (ja) | フレキシブルプリント配線用基板 | |
JP4385297B2 (ja) | 2層フレキシブル基板及びその製造方法 | |
JP5223325B2 (ja) | 金属被覆ポリエチレンナフタレート基板とその製造方法 | |
JP4385298B2 (ja) | 2層フレキシブル基板及びその製造方法 | |
JP2012186307A (ja) | 2層フレキシブル基板とその製造方法、並びに2層フレキシブル基板を基材とした2層フレキシブルプリント配線板と、その製造方法 | |
JP2004158493A (ja) | 銅被覆プラスチック基板 | |
US20080102305A1 (en) | Adhesiveless Copper Clad Laminates And Method For Manufacturing Thereof | |
JP2006013152A (ja) | 2層フレキシブル基板とその製造方法 | |
KR100811620B1 (ko) | 인쇄회로기판의 제조방법 | |
JP2003334889A (ja) | 金属層積層フィルム | |
JP2010212459A (ja) | 2層フレキシブル金属絶縁体積層基板および2層フレキシブル配線基板 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006531950 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11661308 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077005040 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580034530.7 Country of ref document: CN |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 11661308 Country of ref document: US |