WO2020105236A1 - 積層体 - Google Patents
積層体Info
- Publication number
- WO2020105236A1 WO2020105236A1 PCT/JP2019/032451 JP2019032451W WO2020105236A1 WO 2020105236 A1 WO2020105236 A1 WO 2020105236A1 JP 2019032451 W JP2019032451 W JP 2019032451W WO 2020105236 A1 WO2020105236 A1 WO 2020105236A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- glass substrate
- less
- metal
- float glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
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- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/061—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of metal
-
- 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
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0147—Carriers and holders
- H05K2203/016—Temporary inorganic, non-metallic carrier, e.g. for processing or transferring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4682—Manufacture of core-less build-up multilayer circuits on a temporary carrier or on a metal foil
Definitions
- the present invention relates to a laminate including a glass substrate and a metal layer (for example, a metal foil with a glass carrier).
- the coreless buildup method is a method in which insulating layers and wiring layers are alternately laminated (buildup) to form a multilayer without using a so-called core substrate.
- the coreless buildup method it is proposed to use a laminate having a metal layer on a carrier having a peeling function such as a peeling layer so that the support and the multilayer printed wiring board can be easily peeled off. Has been done.
- Patent Document 1 Japanese Unexamined Patent Publication No.
- a copper foil with a carrier is used as a laminated body, and an insulating resin layer is attached to the carrier surface of the copper foil with a carrier to form a support, with a carrier.
- a method of manufacturing a package substrate for mounting a semiconductor element which includes forming a wiring layer, peeling a support substrate with a carrier, and removing an ultrathin copper layer.
- a glass substrate is used as an ultra-smooth carrier in place of a metal carrier or a resin carrier that is typically used in the past. It has recently been proposed to form a metal layer on a super smooth surface.
- Patent Document 2 International Publication No. 2017/149811
- an adhesion metal layer, a peeling auxiliary layer, a peeling layer, an antireflection layer, and an ultrathin copper layer are formed on a carrier such as a glass sheet by sputtering.
- a copper foil with a carrier is disclosed.
- a float glass substrate composed of glass obtained by the float method may be used as the glass substrate in the laminated body.
- the float glass is disclosed in, for example, Japanese Patent Application Laid-Open No. 2017-1899, and molten glass is supplied onto the molten metal of a float bath to form a glass ribbon. It can be obtained by slow cooling to a point temperature or lower. Therefore, the float glass substrate has a surface that does not come into contact with the molten metal during molding (hereinafter referred to as the top surface) and a surface that comes into contact with the molten metal (hereinafter referred to as the bottom surface) due to its manufacturing method.
- the present inventors have now developed a laminate including a float glass substrate having a top surface and a bottom surface, and a metal layer, by selectively providing a metal layer on the top surface side of the float glass substrate, It was found that when a laminated product is manufactured using a body, warpage of the laminated product can be suppressed.
- an object of the present invention is to provide a laminate capable of suppressing the warpage of the laminated product when used for manufacturing the laminated product.
- a laminate including a float glass substrate having a top surface and a bottom surface, and a metal layer provided on the top surface side of the float glass substrate.
- the laminated body 10 includes a float glass substrate 12 and a metal layer 14.
- the float glass substrate 12 has a top surface 12a and a bottom surface 12b.
- the metal layer 14 is provided on the top surface 12a side of the float glass substrate 12.
- the laminate 10 may be used for all purposes, but is preferably used as a metal foil with a carrier for producing a printed wiring board. Specifically, in the laminated body 10 of the present invention, it is preferable that all or part of the metal layer 14 can be peeled from the float glass substrate 12.
- the metal layer 14 is selectively provided on the top surface 12a side of the float glass substrate 12.
- a laminated product for example, a printed wiring board
- warpage of the laminated product can be suppressed.
- a laminated product including an intermediate product
- a laminated body having a float glass substrate for example, a metal foil with a glass carrier
- an insulating resin 116 or the like is formed on the metal layer 114 of the laminated body including the float glass substrate 112 and the metal layer 114.
- a material having a higher coefficient of thermal expansion (CTE) than glass may be laminated. Therefore, as the process progresses, warpage occurs in the thickness direction of the laminated product 110 (when the float glass substrate 112 is on the lower side and the insulating resin 116 is on the upper side, a downward convex direction) due to contraction of the insulating resin 116. sell.
- the laminated product When the laminated product is warped in this manner, for example, the laminated product may be damaged, or there may be a problem in transportation to a device having a limited height in the manufacturing process. For such a problem, it is considered that the design of the laminated product is changed or the warpage is controlled by using a jig, but all of them have problems such as reduction in manufacturing efficiency.
- the inventors of the present invention have repeatedly examined the cause of warping of the laminated product by laminating various layers on the float glass substrate. Then, when various layers are laminated on the bottom surface side of the float glass substrate, the resulting laminated product tends to warp in the thickness direction, while when various layers are laminated on the top surface side of the float glass substrate, We have found that the warpage of laminated products can be effectively suppressed.
- the mechanism by which this effect is realized is not clear, but it is considered as follows.
- the various layers shrink and the inside A force (in other words, a force in which the surface of the float glass substrate opposite to the side where the various layers are laminated is warped in the convex direction) is generated.
- the float glass substrate is distorted because the top surface side and the bottom surface side have different properties due to the manufacturing method thereof. It is considered that the strain of the float glass substrate has a property of promoting the force of warping in the convex direction on the top surface side, and resisting the force of warping in the convex direction on the bottom surface side.
- the float glass substrate 12 is made of glass obtained by the float method.
- the float glass substrate 12 can be formed by a known method as disclosed in Patent Document 3, for example.
- the form of the float glass substrate 12 may be any of a sheet, a film, and a plate.
- the float glass substrate 12 is preferably one that can function as a rigid support such as a glass plate. More preferably, glass having a coefficient of thermal expansion (CTE) of less than 25 ppm / K (typically 1.0 ppm / K or more and 23 ppm / K or less) from the viewpoint of further preventing warpage of the laminated product in the process involving heating. Is.
- CTE coefficient of thermal expansion
- the float glass substrate 12 preferably has a Vickers hardness of 100 HV or more, and more preferably 150 HV or more and 2500 HV or less.
- glass is used as a carrier, it is lightweight, has a low coefficient of thermal expansion, has a high insulating property, is rigid, and has a flat surface, and therefore has the advantages that the surface of the metal layer 14 can be extremely smooth.
- the carrier is glass, using the laminate 10 as a metal foil with a carrier for manufacturing a printed wiring board has various advantages.
- a wiring layer on the surface of the coreless support After forming a wiring layer on the surface of the coreless support, it has excellent visibility with copper plating when performing image inspection, has a surface flatness (coplanarity) that is advantageous when mounting electronic elements, and prints It has chemical resistance in desmear and various plating processes in the wiring board manufacturing process, and can employ a chemical separation method when peeling the float glass substrate 12 from the laminate 10.
- float glass substrate 12 is a glass containing SiO 2, more preferably a SiO 2 50 wt% or more, further preferably glass containing SiO 2 60 wt% or more.
- the glass constituting the float glass substrate 12 include soda lime glass and borosilicate glass, and soda lime glass is particularly preferable. That is, the float glass substrate 12 is preferably a soda lime glass substrate made of soda lime glass.
- the soda lime glass substrate is preferably a chemically strengthened glass substrate. This is because the effects of the invention can be sufficiently exerted.
- the chemical strengthening treatment is typically performed by immersing glass in a molten salt.
- the chemically strengthened glass substrate is a glass substrate having at least its surface subjected to ion exchange.
- the depth of element substitution based on the chemical strengthening treatment is preferably 1 ⁇ m or more and 50 ⁇ m or less, more preferably 2 ⁇ m or more and 40 ⁇ m or less, further preferably 3 ⁇ m or more and 30 ⁇ m or less, and particularly preferably 5 ⁇ m or more and 20 ⁇ m or less.
- the chemically strengthened glass substrate As the float glass substrate 12, it is possible to effectively suppress the scratches and cracks of the substrate that may occur during the manufacturing process, and improve the handling property.
- chemically strengthened glass generally has a large strain due to the above-mentioned chemical strengthening treatment, a laminated product manufactured by using this as a substrate is likely to have a large warp.
- the thickness of the float glass substrate 12 is preferably 3 mm or less, more preferably 2.5 mm or less, further preferably 2 mm or less, and particularly preferably 1.5 mm. The following is most preferably 1.2 mm or less. If the thickness is within such a range, the float glass substrate 12 generally tends to have a large strain, but in the present invention, the warp of the laminated product can be effectively suppressed. 12 can be preferably adopted.
- the thickness of the float glass substrate 12 is preferably 0.3 mm or more, more preferably 0.4 mm or more, further preferably 0.5 mm or more, particularly preferably 0.6 mm. Above, most preferably, it is 0.7 mm or more.
- the surface of the float glass substrate 12 preferably has a maximum height Rz measured according to JIS B 0601-2001 of less than 1.0 ⁇ m, more preferably 0.001 ⁇ m or more and 0.5 ⁇ m or less, and further preferably 0. 0.001 ⁇ m or more and 0.1 ⁇ m or less, further preferably 0.001 ⁇ m or more and 0.08 ⁇ m or less, particularly preferably 0.001 ⁇ m or more and 0.05 ⁇ m or less, and most preferably 0.001 ⁇ m or more and 0.02 ⁇ m or less.
- Rz can be provided so that, for example, in a printed wiring board manufactured using the laminate 10, the line / space (L / S) is 13 ⁇ m or less / 13 ⁇ m or less (for example, 12 ⁇ m / 12 ⁇ m to 2 ⁇ m / 2 ⁇ m). It is suitable for forming a wiring pattern that is highly miniaturized to a certain degree.
- the metal layer 14 is a layer containing a metal, and may have a single layer structure or a multilayer structure of two or more layers.
- the metal layer 14 preferably contains a metal M (M is a metal other than an alkali metal and an alkaline earth metal).
- M is a metal other than an alkali metal and an alkaline earth metal.
- the content of M in the metal layer 14 is preferably 50 at% or more and 100 at% or less, more preferably 60 at% or more and 100 at% or less, further preferably 70 at% or more and 100 at% or less, particularly preferably It is 80 at% or more and 100 at% or less, and most preferably 90 at% or more and 100 at% or less.
- the total thickness of the metal layer 14 may be appropriately selected according to the type of the functional layer forming the metal layer 14, and is not particularly limited, but is preferably 0.1 mm or less, more preferably 0.01 mm or less, and further It is preferably 0.005 mm or less, particularly preferably 0.002 mm or less, and most preferably 0.001 mm or less.
- the metal layer 14 is originally susceptible to the strain of the float glass substrate 12, this problem can be effectively solved in the present invention, and thus the metal layer having the above thickness can be adopted.
- the lower limit of the thickness of the entire metal layer 14 is not particularly limited, but is typically 0.0001 mm or more, and more typically 0.0002 mm or more.
- the metal layer 14 may be a layer having any function, and may be, for example, at least one functional layer selected from the group consisting of an adhesion layer, a peeling auxiliary layer, an antireflection layer and a seed layer.
- a functional layer selected from the group consisting of an adhesion layer, a peeling auxiliary layer, an antireflection layer and a seed layer.
- the metal layer 14 may include an adhesion layer for ensuring adhesion with the float glass substrate 12.
- the adhesion layer preferably contains the metal M 1 having a negative standard electrode potential.
- M 1 include titanium, chromium, nickel, cobalt, aluminum, molybdenum and combinations thereof (for example, alloys and intermetallic compounds), more preferably titanium, nickel, cobalt, aluminum, molybdenum and their combinations.
- the adhesion layer may contain an element other than M 1 within a range not impairing the adhesion with the float glass substrate 12.
- the content of M 1 in the adhesive layer is preferably 50 at% or more and 100 at% or less, more preferably 60 at% or more and 100 at% or less, further preferably 70 at% or more and 100 at%. It is particularly preferably 80 at% or more and 100 at% or less, and most preferably 90 at% or more and 100 at% or less.
- the metal forming the adhesion layer may contain inevitable impurities caused by the raw material components and the film forming process.
- the presence of oxygen contaminating due to the exposure is allowed.
- the adhesion layer is preferably a layer formed by physical vapor deposition (PVD) method, more preferably a layer formed by sputtering. It is particularly preferable that the adhesion layer is a layer formed by a magnetron sputtering method using a metal target because the uniformity of the film thickness distribution can be improved.
- the thickness of the adhesive layer is preferably 5 nm or more and 500 nm or less, more preferably 10 or more and 300 nm or less, further preferably 18 nm or more and 200 nm or less, and particularly preferably 20 nm or more and 100 nm or less. This thickness is a value measured by analyzing the layer cross section with an energy dispersive X-ray spectroscopic analyzer (TEM-EDX) of a transmission electron microscope.
- TEM-EDX energy dispersive X-ray spectroscopic analyzer
- the metal layer 14 may include a peeling auxiliary layer for controlling the peeling strength to a desired value.
- the peeling auxiliary layer preferably contains a metal M 2 other than the alkali metal and the alkaline earth metal.
- M 2 include copper, silver, tin, zinc, titanium, aluminum, niobium, zirconium, tungsten, tantalum, molybdenum and combinations thereof (for example, alloys and intermetallic compounds), more preferably copper, Silver, tin, zinc, titanium, aluminum, molybdenum and combinations thereof, more preferably copper, silver, titanium, aluminum, molybdenum and combinations thereof, particularly preferably copper, silver, aluminum and combinations thereof, most preferably copper. Is.
- the peeling auxiliary layer may contain an element other than M 2 as long as the peelability of the float glass substrate 12 is not impaired. From the above points, the content of M 2 in the peeling auxiliary layer is preferably 50 at% or more and 100 at% or less, more preferably 60 at% or more and 100 at% or less, and further preferably 70 at% or more and 100 at%. % Or less, particularly preferably 80 at% or more and 100 at% or less, and most preferably 90 at% or more and 100 at% or less.
- the metal forming the peeling auxiliary layer may contain unavoidable impurities caused by the raw material components and the film forming process.
- the peeling auxiliary layer is preferably a layer formed by a physical vapor deposition (PVD) method, more preferably a layer formed by sputtering.
- the peeling auxiliary layer is particularly preferably a layer formed by a magnetron sputtering method using a metal target in terms of improving the uniformity of the film thickness distribution.
- the thickness of the peeling auxiliary layer is preferably 5 nm or more and 500 nm or less, more preferably 10 nm or more and 400 nm or less, further preferably 15 nm or more and 300 nm or less, and particularly preferably 20 nm or more and 200 nm or less.
- the thickness is a value measured by analyzing the layer cross section with an energy dispersive X-ray spectroscopic analyzer (TEM-EDX) of a transmission electron microscope.
- TEM-EDX energy dispersive X-ray spectroscopic analyzer
- the metal layer 14 may include an antireflection layer for improving visibility in image inspection (for example, automatic image inspection (AOI)).
- the metal constituting the antireflection layer include titanium, aluminum, niobium, zirconium, chromium, tungsten, tantalum, cobalt, silver, nickel, molybdenum and combinations thereof, more preferably titanium, zirconium, aluminum. , Chromium, tungsten, nickel, molybdenum and combinations thereof, more preferably titanium, aluminum, chromium, nickel, molybdenum and combinations thereof, particularly preferably titanium, molybdenum and combinations thereof. Since these metals have a function of preventing light reflection, visibility can be improved in image inspection.
- the antireflection layer may be a pure metal or an alloy.
- the metal forming the antireflection layer may contain inevitable impurities caused by the raw material components, the film forming process, and the like.
- the upper limit of the content of the above metal is not particularly limited and may be 100 atom%.
- the functional layer is preferably a layer formed by physical vapor deposition (PVD) method, more preferably a layer formed by sputtering.
- the thickness of the antireflection layer is preferably 1 nm or more and 500 nm or less, more preferably 10 nm or more and 400 nm or less, further preferably 30 nm or more and 300 nm or less, and particularly preferably 50 nm or more and 200 nm or less. The thickness is a value measured by analyzing the layer cross section with an energy dispersive X-ray spectroscopic analyzer (TEM-EDX) of a transmission electron microscope.
- TEM-EDX energy dispersive X-ray spect
- the metal layer 14 may include a seed layer used for forming a wiring pattern of a printed wiring board or the like.
- the metal forming the seed layer include transition elements of Group 4, Group 5, Group 6, Group 9, Group 10 and Group 11, aluminum, and combinations thereof (for example, alloys and metals).
- Intermetallic compounds more preferably Group 4 and Group 11 transition elements, aluminum, niobium, cobalt, nickel, molybdenum and combinations thereof, and even more preferably Group 11 transition elements, titanium, aluminum and molybdenum. And combinations thereof, particularly preferably copper, titanium, molybdenum and combinations thereof, most preferably copper.
- the seed layer may be manufactured by any method, for example, a wet film forming method such as an electroless metal plating method and an electrolytic metal plating method, a physical vapor deposition (PVD) method such as sputtering and vacuum evaporation, a chemical vapor deposition method. It may be a seed layer formed by phase film formation or a combination thereof.
- a particularly preferable seed layer is a seed layer formed by a vapor phase method such as a sputtering method and vacuum deposition, from the viewpoint of easily responding to a fine pitch due to ultra-thinning, and most preferably a seed layer manufactured by the sputtering method. It is a layer.
- the seed layer is preferably a non-roughened seed layer.
- the seed layer is used as a preliminary roughening process, a soft etching process, a cleaning process, and an oxidation process as long as it does not hinder the formation of a wiring pattern at the time of manufacturing the printed wiring board.
- the secondary roughening may be caused by the reduction treatment.
- the thickness of the seed layer is not particularly limited, it is preferably 10 nm or more and 1000 nm or less, more preferably 20 nm or more and 900 nm or less, further preferably 30 nm or more and 700 nm or less, and particularly preferably in order to cope with the fine pitch as described above.
- the thickness is a value measured by analyzing the layer cross section with an energy dispersive X-ray spectroscopic analyzer (TEM-EDX) of a transmission electron microscope. It is preferable that the seed layer having a thickness within such a range is produced by a sputtering method from the viewpoint of the in-plane uniformity of the film formation thickness and the productivity in the form of a sheet or a roll.
- TEM-EDX energy dispersive X-ray spectroscopic analyzer
- the surface of the seed layer opposite to the float glass substrate 12 (the outer surface of the seed layer) has an arithmetic average roughness Ra of 1.0 nm or more and 100 nm or less, which is measured according to JIS B 0601-2001.
- the thickness is preferably 2.0 nm or more and 40 nm or less, more preferably 3.0 nm or more and 35 nm or less, particularly preferably 4.0 nm or more and 30 nm or less, and most preferably 5.0 nm or more and 15 nm or less.
- the line / space (L / S) is 13 ⁇ m or less / 13 ⁇ m or less (for example, 12 ⁇ m / 12 ⁇ m to 2 ⁇ m / 2 ⁇ m) in a printed wiring board manufactured using the laminate 10. It is suitable for forming a wiring pattern that is highly miniaturized to such an extent.
- the laminated body 10 may further include a release layer between the top surface 12a side of the float glass substrate 12 and the metal layer 14 or between two or more metal layers 14.
- the peeling layer is a layer that facilitates peeling between the float glass substrate 12 and the metal layer 14.
- the release layer may be either an organic release layer or an inorganic release layer, or may be a composite release layer of an organic release layer and an inorganic release layer.
- organic components used in the organic release layer include nitrogen-containing organic compounds, sulfur-containing organic compounds, and carboxylic acids.
- nitrogen-containing organic compounds include triazole compounds and imidazole compounds.
- examples of the inorganic component used in the inorganic release layer include at least one or more kinds of metal oxides of nickel, molybdenum, cobalt, chromium, iron, titanium, tungsten, phosphorus and zinc, carbon, and the like.
- the release layer may be a layer containing both metal oxide and carbon.
- the peeling layer is preferably a layer containing carbon from the viewpoint of ease of peeling and film-forming property, more preferably a layer mainly containing carbon, and further preferably mainly carbon or hydrocarbon. And a layer of amorphous carbon, which is a hard carbon film.
- the peeling layer (that is, the carbon layer) preferably has a carbon concentration measured by XPS of 60 atom% or more, more preferably 70 atom% or more, further preferably 80 atom% or more, particularly preferably 85 atom%. % Or more.
- the upper limit of the carbon concentration is not particularly limited and may be 100 atom%, but 98 atom% or less is realistic.
- the release layer (particularly the carbon layer) may contain unavoidable impurities (for example, oxygen, carbon, hydrogen and the like derived from ambient environment such as atmosphere). Further, metal atoms may be mixed into the peeling layer (particularly the carbon layer) due to the film forming method of the metal layer 14.
- the peeling layer is preferably a layer formed by a vapor phase method such as sputtering from the viewpoint of suppressing excessive impurities in the amorphous carbon, continuous productivity with the formation of the metal layer 14 described later, and the like.
- the thickness of the release layer is preferably 1 nm or more and 20 nm or less, more preferably 1 nm or more and 10 nm or less. The thickness is a value measured by analyzing the layer cross section with an energy dispersive X-ray spectroscopic analyzer (TEM-EDX) of a transmission electron microscope.
- the laminated body 10 has an adhesion layer, a peeling auxiliary layer, an antireflection layer, and an adhesion layer on the float glass substrate 12.
- the seed layer is preferably provided in this order.
- the laminate 10 further includes a release layer, it is most preferable that the release layer be present between the release assisting layer and the antireflection layer.
- the total thickness of the laminate 10 is not particularly limited, but is preferably 0.3 mm or more and 3 mm or less, more preferably 0.4 mm or more and 2 mm or less, further preferably 0.5 mm or more and 1.5 mm or less, and particularly preferably 0.7 mm. It is 1.2 mm or less.
- the laminated body 10 according to the present invention can be produced by preparing the float glass substrate 12 and forming a metal layer on the top surface 12a side of the float glass substrate 12.
- a metal layer on the top surface 12a side of the float glass substrate 12.
- the laminate 10 according to a preferred embodiment is manufactured by appropriately forming various layers such as an adhesion layer, a peeling auxiliary layer, a peeling layer, an antireflection layer, and a seed layer on the top surface 12a side on the float glass substrate 12. be able to.
- the adhesion layer, the peeling auxiliary layer, the peeling layer, the antireflection layer, and the seed layer are formed by the physical vapor deposition (PVD) method from the viewpoint of easily adapting to fine pitch due to ultra-thinning.
- PVD physical vapor deposition
- Examples of the physical vapor deposition (PVD) method include a sputtering method, a vacuum evaporation method, and an ion plating method.
- the film thickness can be controlled in a wide range of 0.05 nm to 5000 nm, and a wide width or area.
- the sputtering method is most preferable from the viewpoint that the film thickness uniformity can be secured over the entire range.
- the metal layer 14 may be formed by forming at least one selected from the group consisting of an adhesion layer, a peeling auxiliary layer, an antireflection layer, and a seed layer, and it is essential to form all of these layers. is not.
- the film formation by the physical vapor deposition (PVD) method may be performed according to known conditions using a known vapor phase film forming apparatus and is not particularly limited.
- the sputtering method may be various known methods such as magnetron sputtering, two-electrode sputtering method, opposed target sputtering method, etc.
- magnetron sputtering has a high film forming rate and high productivity. It is preferable in terms of high price.
- Sputtering may be performed with either DC (direct current) or RF (high frequency) power source.
- RF radio frequency
- PVD physical vapor deposition
- the deposition of the adhesion layer by physical vapor deposition (PVD) method (preferably sputtering method) is performed by magnetron sputtering in a non-oxidizing atmosphere using the target composed of the metal M 1 described above. It is preferable in that the uniformity of distribution can be improved.
- the target purity is preferably 99.9% or higher.
- As a gas used for sputtering it is preferable to use an inert gas such as argon gas.
- the flow rate of the argon gas may be appropriately determined according to the sputtering chamber size and the film forming conditions, and is not particularly limited.
- the pressure during film formation is in the range of 0.1 Pa or more and 20 Pa or less from the viewpoint of continuous film formation without abnormal operation such as abnormal discharge or plasma irradiation failure.
- This pressure range may be set by adjusting the film-forming power and the flow rate of the argon gas according to the apparatus structure, capacity, vacuum pump exhaust capacity, film-forming power supply rated capacity, and the like.
- the sputtering power is film thickness uniformity of the film formation, in consideration of productivity and the like may be appropriately set within a range of 0.05 W / cm 2 or more 10.0 W / cm 2 or less per unit area of the target.
- the film formation of the peeling auxiliary layer by the physical vapor deposition (PVD) method (preferably the sputtering method) is performed by magnetron sputtering in a non-oxidizing atmosphere using the target composed of the metal M 2 described above. It is preferable in that the uniformity of thickness distribution can be improved.
- the target purity is preferably 99.9% or higher.
- As a gas used for sputtering it is preferable to use an inert gas such as argon gas.
- the flow rate of the argon gas may be appropriately determined according to the sputtering chamber size and the film forming conditions, and is not particularly limited.
- the pressure during film formation is in the range of 0.1 Pa or more and 20 Pa or less from the viewpoint of continuous film formation without abnormal operation such as abnormal discharge or plasma irradiation failure.
- This pressure range may be set by adjusting the film-forming power and the flow rate of the argon gas according to the apparatus structure, capacity, vacuum pump exhaust capacity, film-forming power supply rated capacity, and the like.
- the sputtering power is film thickness uniformity of the film formation, in consideration of productivity and the like may be appropriately set within a range of 0.05 W / cm 2 or more 10.0 W / cm 2 or less per unit area of the target.
- the film formation of the release layer by the physical vapor deposition (PVD) method is preferably performed in an inert atmosphere such as argon using a carbon target.
- the carbon target is preferably composed of graphite, but may contain unavoidable impurities (for example, oxygen and carbon derived from the ambient environment such as the atmosphere).
- the purity of the carbon target is preferably 99.99% or higher, more preferably 99.999% or higher.
- the pressure during film formation be in the range of 0.1 Pa or more and 2.0 Pa or less from the viewpoint of continuous film formation without abnormal operation such as abnormal discharge or plasma irradiation failure.
- This pressure range may be set by adjusting the film-forming power and the flow rate of the argon gas according to the apparatus structure, capacity, vacuum pump exhaust capacity, film-forming power supply rated capacity, and the like. Further, the sputtering power is film thickness uniformity of the film formation, in consideration of productivity and the like may be appropriately set within a range of 0.05 W / cm 2 or more 10.0 W / cm 2 or less per unit area of the target.
- the film formation of the antireflection layer by physical vapor deposition (PVD) (preferably sputtering) is selected from the group consisting of titanium, aluminum, niobium, zirconium, chromium, tungsten, tantalum, cobalt, silver, nickel and molybdenum. It is preferable to carry out the magnetron sputtering method using a target composed of at least one kind of metal. The target purity is preferably 99.9% or higher.
- the film formation of the functional layer by magnetron sputtering is preferably performed under an atmosphere of an inert gas such as argon at a pressure of 0.1 Pa or more and 20 Pa or less.
- the sputtering pressure is more preferably 0.2 Pa or more and 15 Pa or less, still more preferably 0.3 Pa or more and 10 Pa or less.
- the control of the pressure range may be performed by adjusting the film-forming power and the flow rate of the argon gas according to the device structure, capacity, vacuum pump exhaust capacity, film-forming power supply rated capacity, and the like.
- the flow rate of the argon gas may be appropriately determined according to the sputtering chamber size and the film forming conditions, and is not particularly limited.
- the sputtering power is film thickness uniformity of the film formation, in consideration of productivity and the like may be appropriately set within a range of 1.0 W / cm 2 or more 15.0W / cm 2 or less per unit area of the target.
- the carrier temperature during film formation is preferably adjusted within the range of 25 ° C to 300 ° C, more preferably 40 ° C to 200 ° C, and further preferably 50 ° C to 150 ° C.
- the seed layer is formed by a physical vapor deposition (PVD) method (preferably a sputtering method) by, for example, a transition element of Group 4, Group 5, Group 6, Group 9, Group 10 and Group 11 , And a target composed of at least one metal selected from the group consisting of aluminum, and is preferably performed in an inert atmosphere such as argon.
- PVD physical vapor deposition
- a metal target such as a copper target is preferably composed of a metal such as metallic copper, but may contain inevitable impurities.
- the purity of the metal target is preferably 99.9% or more, more preferably 99.99%, further preferably 99.999% or more.
- a cooling mechanism for the stage may be provided during sputtering in order to avoid a temperature rise during vapor phase film formation of the seed layer.
- the pressure during film formation is preferably in the range of 0.1 Pa or more and 2.0 Pa or less.
- This pressure range may be set by adjusting the film-forming power and the flow rate of the argon gas according to the apparatus structure, capacity, vacuum pump exhaust capacity, film-forming power supply rated capacity, and the like.
- the sputtering power is film thickness uniformity of the film formation, in consideration of productivity and the like may be appropriately set within a range of 0.05 W / cm 2 or more 10.0 W / cm 2 or less per unit area of the target.
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Abstract
Description
本発明の積層体の一例が図1に模式的に示される。図1に示されるように、積層体10は、フロートガラス基板12と、金属層14とを備えたものである。フロートガラス基板12はトップ面12a及びボトム面12bを有する。金属層14はフロートガラス基板12のトップ面12a側に設けられる。積層体10は、あらゆる用途に使用されるものであってもよいが、プリント配線板製造用のキャリア付金属箔として使用されるのが特に好ましい。具体的に、本発明の積層体10は、金属層14の全部または一部がフロートガラス基板12から剥離可能であることが好ましい。
本発明による積層体10は、フロートガラス基板12を用意し、フロートガラス基板12のトップ面12a側に、金属層を形成することにより製造することができる。フロートガラス基板12の剥離を容易とすべく、フロートガラス基板12のトップ面12a側又は2以上の金属層の間に剥離層を形成するのが好ましい。例えば、好ましい態様による積層体10は、フロートガラス基板12上のトップ面12a側に、密着層、剥離補助層、剥離層、反射防止層、シード層等の各種層を適宜形成することにより製造することができる。密着層、剥離補助層、剥離層、反射防止層、及びシード層の各層の形成は、極薄化によるファインピッチ化に対応しやすい観点から、物理気相堆積(PVD)法により行われるのが好ましい。物理気相堆積(PVD)法の例としては、スパッタリング法、真空蒸着法、及びイオンプレーティング法が挙げられるが、0.05nm以上5000nm以下といった幅広い範囲で膜厚制御できる点、広い幅ないし面積にわたって膜厚均一性を確保できる点等から、最も好ましくはスパッタリング法である。特に、密着層、剥離補助層、剥離層、反射防止層、及びシード層等の各種層の全てをスパッタリング法により形成することで、製造効率が格段に高くなる。なお、金属層14の形成は、密着層、剥離補助層、反射防止層、及びシード層からなる群から選択される少なくとも1種を形成すれば足り、これら全ての層の形成を必須とするものではない。物理気相堆積(PVD)法による成膜は公知の気相成膜装置を用いて公知の条件に従って行えばよく特に限定されない。例えば、スパッタリング法を採用する場合、スパッタリング方式は、マグネトロンスパッタリング、2極スパッタリング法、対向ターゲットスパッタリング法等、公知の種々の方法であってよいが、マグネトロンスパッタリングが、成膜速度が速く生産性が高い点で好ましい。スパッタリングはDC(直流)及びRF(高周波)のいずれの電源で行ってもよい。また、ターゲット形状も広く知られているプレート型ターゲットを使用することができるが、ターゲット使用効率の観点から円筒形ターゲットを用いることが望ましい。以下、密着層、剥離補助層、剥離層、反射防止層、及びシード層の各層の物理気相堆積(PVD)法(好ましくはスパッタリング法)による成膜について説明する。
Claims (8)
- トップ面及びボトム面を有するフロートガラス基板と、該フロートガラス基板の前記トップ面側に設けられる金属層とを備えた、積層体。
- 前記フロートガラス基板が、ソーダライムガラス基板である、請求項1に記載の積層体。
- 前記ソーダライムガラス基板が、化学強化ガラス基板である、請求項2に記載の積層体。
- 前記化学強化ガラス基板は、化学強化処理に基づく元素置換の深さが1μm以上50μm以下である、請求項3に記載の積層体。
- 前記フロートガラス基板の厚さが3mm以下である、請求項1から請求項4までのいずれか一項に記載の積層体。
- 前記金属層の厚さが0.1mm以下である、請求項1から請求項5までのいずれか一項に記載の積層体。
- 前記金属層が、金属M(Mは、アルカリ金属及びアルカリ土類金属以外の金属である)を含む、請求項1から請求項6までのいずれか一項に記載の積層体。
- 前記フロートガラス基板の前記トップ面側に剥離層を備える、請求項1から請求項7までのいずれか一項に記載の積層体。
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| CN201980065248.7A CN112789169A (zh) | 2018-11-20 | 2019-08-20 | 层叠体 |
| KR1020217007080A KR102774128B1 (ko) | 2018-11-20 | 2019-08-20 | 적층체 |
| JP2020558094A JP7389052B2 (ja) | 2018-11-20 | 2019-08-20 | 積層体 |
| US17/317,004 US12193153B2 (en) | 2018-11-20 | 2021-05-11 | Multilayer body |
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| JP (1) | JP7389052B2 (ja) |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6489595A (en) * | 1987-09-30 | 1989-04-04 | Hitachi Chemical Co Ltd | Manufacture of wiring board |
| JP2002507248A (ja) * | 1997-06-20 | 2002-03-05 | ピーピージー インダストリーズ オハイオ,インコーポレイテッド | オキシ窒化珪素保護コーティング |
| JP2015135433A (ja) * | 2014-01-17 | 2015-07-27 | パナソニックIpマネジメント株式会社 | 音響素子及びその製造方法 |
| WO2015156262A1 (ja) * | 2014-04-09 | 2015-10-15 | 旭硝子株式会社 | 化学強化ガラスの製造方法 |
| JP2017134432A (ja) * | 2017-04-26 | 2017-08-03 | 大日本印刷株式会社 | 表示装置用前面保護板及び表示装置 |
| JP2018109239A (ja) * | 2018-02-22 | 2018-07-12 | 日本電気硝子株式会社 | デバイスの製造方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4759975A (en) * | 1986-11-06 | 1988-07-26 | Asten Group, Inc. | Papermaker's wet press felt having multi-layered base fabric |
| AU680786B2 (en) * | 1995-06-07 | 1997-08-07 | Guardian Industries Corporation | Heat treatable, durable, IR-reflecting sputter-coated glasses and method of making same |
| JP4273895B2 (ja) | 2003-09-24 | 2009-06-03 | 日立化成工業株式会社 | 半導体素子搭載用パッケージ基板の製造方法 |
| US7410825B2 (en) * | 2005-09-15 | 2008-08-12 | Eastman Kodak Company | Metal and electronically conductive polymer transfer |
| KR101245278B1 (ko) * | 2009-08-07 | 2013-03-19 | 주식회사 엘지화학 | 전도성 기판 및 이의 제조 방법 |
| WO2013005608A1 (ja) * | 2011-07-01 | 2013-01-10 | 旭硝子株式会社 | 化学強化用フロートガラス |
| JP5835654B2 (ja) * | 2011-08-31 | 2015-12-24 | 日本電気硝子株式会社 | 強化ガラス基板の製造方法 |
| EP2762461B1 (en) * | 2011-09-29 | 2018-11-21 | Central Glass Company, Limited | Chemically strengthened glass and method for producing same |
| CN104203858B (zh) * | 2012-03-26 | 2018-02-02 | 旭硝子株式会社 | 能够减小化学强化时的翘曲的玻璃板 |
| CN104884398B (zh) * | 2012-12-27 | 2017-05-31 | 旭硝子株式会社 | 化学强化用浮法玻璃 |
| CN105189396B (zh) * | 2013-03-19 | 2019-10-22 | 日本板硝子株式会社 | 玻璃板及玻璃板的制造方法 |
| WO2014166082A1 (en) * | 2013-04-10 | 2014-10-16 | Schott Glass Technologies (Suzhou) Co. Ltd. | Flexible glass/metal foil composite articles and production process thereof |
| WO2014196407A1 (ja) * | 2013-06-06 | 2014-12-11 | 旭硝子株式会社 | 化学強化用ガラスおよび化学強化ガラス並びに化学強化ガラスの製造方法 |
| CN112919828A (zh) * | 2013-10-14 | 2021-06-08 | 康宁股份有限公司 | 离子交换方法以及通过该离子交换方法得到的经过化学强化的玻璃基材 |
| US9678256B2 (en) * | 2015-03-27 | 2017-06-13 | Hitachi Maxell, Ltd. | Transparent heat-shielding member |
| CN107531547A (zh) * | 2015-05-05 | 2018-01-02 | 旭硝子欧洲玻璃公司 | 能够通过化学强化而具有受控的翘曲的玻璃板 |
| JP2017001899A (ja) | 2015-06-05 | 2017-01-05 | 旭硝子株式会社 | フロートガラス製造方法、及びフロートガラス製造装置 |
| WO2017149811A1 (ja) * | 2016-02-29 | 2017-09-08 | 三井金属鉱業株式会社 | キャリア付銅箔、並びに配線層付コアレス支持体及びプリント配線板の製造方法 |
| WO2017149810A1 (ja) * | 2016-02-29 | 2017-09-08 | 三井金属鉱業株式会社 | キャリア付銅箔及びその製造方法、並びに配線層付コアレス支持体及びプリント配線板の製造方法 |
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2019
- 2019-08-20 CN CN201980065248.7A patent/CN112789169A/zh active Pending
- 2019-08-20 KR KR1020217007080A patent/KR102774128B1/ko active Active
- 2019-08-20 WO PCT/JP2019/032451 patent/WO2020105236A1/ja not_active Ceased
- 2019-08-20 JP JP2020558094A patent/JP7389052B2/ja active Active
- 2019-11-19 TW TW108141875A patent/TWI717107B/zh active
-
2021
- 2021-05-11 US US17/317,004 patent/US12193153B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6489595A (en) * | 1987-09-30 | 1989-04-04 | Hitachi Chemical Co Ltd | Manufacture of wiring board |
| JP2002507248A (ja) * | 1997-06-20 | 2002-03-05 | ピーピージー インダストリーズ オハイオ,インコーポレイテッド | オキシ窒化珪素保護コーティング |
| JP2015135433A (ja) * | 2014-01-17 | 2015-07-27 | パナソニックIpマネジメント株式会社 | 音響素子及びその製造方法 |
| WO2015156262A1 (ja) * | 2014-04-09 | 2015-10-15 | 旭硝子株式会社 | 化学強化ガラスの製造方法 |
| JP2017134432A (ja) * | 2017-04-26 | 2017-08-03 | 大日本印刷株式会社 | 表示装置用前面保護板及び表示装置 |
| JP2018109239A (ja) * | 2018-02-22 | 2018-07-12 | 日本電気硝子株式会社 | デバイスの製造方法 |
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| US12193153B2 (en) | 2025-01-07 |
| KR20210093847A (ko) | 2021-07-28 |
| KR102774128B1 (ko) | 2025-03-04 |
| JP7389052B2 (ja) | 2023-11-29 |
| JPWO2020105236A1 (ja) | 2021-09-30 |
| TWI717107B (zh) | 2021-01-21 |
| TW202019690A (zh) | 2020-06-01 |
| CN112789169A (zh) | 2021-05-11 |
| US20210274650A1 (en) | 2021-09-02 |
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