WO2022124842A1 - 금속박, 이를 포함하는 캐리어 부착 금속박 및 이를 포함하는 인쇄회로기판 - Google Patents
금속박, 이를 포함하는 캐리어 부착 금속박 및 이를 포함하는 인쇄회로기판 Download PDFInfo
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- WO2022124842A1 WO2022124842A1 PCT/KR2021/018712 KR2021018712W WO2022124842A1 WO 2022124842 A1 WO2022124842 A1 WO 2022124842A1 KR 2021018712 W KR2021018712 W KR 2021018712W WO 2022124842 A1 WO2022124842 A1 WO 2022124842A1
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- Prior art keywords
- metal foil
- protrusion
- metal
- carrier
- present
- Prior art date
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- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
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- DIHKMUNUGQVFES-UHFFFAOYSA-N n,n,n',n'-tetraethylethane-1,2-diamine Chemical compound CCN(CC)CCN(CC)CC DIHKMUNUGQVFES-UHFFFAOYSA-N 0.000 description 1
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- AVTYONGGKAJVTE-OLXYHTOASA-L potassium L-tartrate Chemical compound [K+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O AVTYONGGKAJVTE-OLXYHTOASA-L 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/384—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
-
- 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
- H05K3/007—Manufacture or processing of a substrate for a printed circuit board supported by a temporary or sacrificial carrier
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
- H05K3/205—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using a pattern electroplated or electroformed on a metallic carrier
-
- 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
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of 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
- H05K3/46—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0355—Metal foils
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/072—Electroless plating, e.g. finish plating or initial plating
Definitions
- the present invention relates to a metal foil having a roughened surface, a metal foil with a carrier including the metal foil, and a printed circuit board manufactured using the metal foil.
- a printed circuit board may be manufactured by bonding a metal foil and an insulating resin substrate and then forming a circuit wiring on the metal foil through an etching process.
- a metal foil and an insulating resin substrate In order to prevent peeling of the metal foil from occurring in the process of forming the circuit wiring, it is required to have high adhesion between the metal foil and the insulating resin substrate.
- Patent Document 1 discloses that the surface of the copper foil on the resin layer side is subjected to an electrolytic treatment, a blast treatment, or an oxidation-reduction treatment to form particulate protrusions, thereby improving the adhesion between the copper foil and the resin layer.
- An object of the present invention is to provide a metal foil capable of preventing a decrease in high frequency signal transmission efficiency while exhibiting high adhesion to an insulating resin substrate.
- the present invention is to provide a metal foil with a carrier including the metal foil.
- Another object of the present invention is to provide a printed circuit board including the metal foil.
- the present invention provides a metal foil including a plurality of projections having a flat upper portion.
- the protrusion may include a protrusion having a truncated cone shape or a polygonal truncated pyramid shape; and a flat portion provided on an upper end of the protrusion.
- a plurality of microprotrusions may be formed on the surface of the protrusion.
- the surface roughness (Ra) of the protrusion may be 0.05 to 0.3 ⁇ m.
- a ratio (b/a) of the length (a) of the base of the protrusion to the height (b) of the protrusion may be 0.4 to 1.5.
- a ratio (c/a) of the length (a) of the base of the protrusion to the length (c) of the flat portion may be 0.1 to 0.7.
- the polygonal truncated pyramid shape may be at least one selected from the group consisting of a pentagonal truncated pyramid shape, a hexagonal truncated pyramid shape, a heptagonal truncated pyramid shape, and an octagonal truncated pyramid shape.
- the projections may be formed by electroless plating.
- the carrier a release layer provided on the carrier; and a metal layer provided on the release layer, wherein the metal layer provides a metal foil with a carrier that is made of the metal foil.
- the present invention also provides a printed circuit board including a metal circuit layer in which circuit wiring is formed on the metal foil.
- the metal foil according to the present invention has a flat top formed on the surface, it is possible to minimize the occurrence of signal transmission loss in the high frequency signal transmission process while exhibiting high adhesion to the insulating resin substrate.
- a plurality of protrusions are naturally formed in the process of manufacturing the metal foil according to the present invention by electroless plating, there is no need to perform a separate roughening treatment for forming irregularities on the metal foil as in the prior art, thereby improving the efficiency of the manufacturing process of the printed circuit board. can be improved
- FIG. 1 shows a portion of the surface of a metal foil according to an embodiment of the present invention.
- Figure 2 shows the shape of the projections present in the metal foil according to an embodiment of the present invention.
- 'on' may be interpreted as a concept including a case in which the corresponding configuration is immediately above another configuration, as well as a case in which there is another configuration in the middle.
- 'top' may be interpreted as 'bottom'.
- the metal foil 100 includes a plurality of protrusions 10 having a flat top.
- the projections 10 may refer to metal crystal particles protruding vertically upward from the surface of the metal foil 100 .
- the protrusion 10 may include a protrusion 11 and a flat portion 12 .
- the protrusion 11 included in the protrusion 10 is a portion protruding from the surface of the metal foil 100 and may have a truncated cone shape or a polygonal truncated pyramid shape. Specifically, as shown in FIG. 2 , the protrusion 11 has a truncated cone shape with a flat surface (side surface) or a polygonal truncated pyramid shape with an angulate surface. is increased, so that the metal foil 100 may be coupled to the insulating resin substrate to have high adhesion.
- the protrusion 11 may have at least one shape selected from the group consisting of a pentagonal truncated pyramid shape, a hexagonal truncated pyramid shape, a heptagonal truncated pyramid shape, and an octagonal truncated pyramid shape.
- a plurality of fine protrusions 11a may be formed on the protrusion 11 to increase adhesion to the insulating resin substrate due to an increase in surface area. Due to the fine protrusions 11a, the protrusion 11 may have a surface roughness Ra of 0.05 to 0.3 ⁇ m, specifically 0.08 to 0.2 ⁇ m. Here, the surface roughness Ra of the protrusion 11 may be defined as the surface roughness Ra of the side surface of the protrusion 11 excluding the flat part 12 .
- the ratio (b/a) of the length (a) of the base of the protrusion 11 to the height (b) of the protrusion 11 may be 0.4 to 1.5, specifically, 0.6 to 1.2. As the ratio (b/a) is within the above range, it is possible to minimize signal transmission loss in the high frequency signal transmission process while increasing the adhesion between the metal foil 100 and the insulating resin substrate.
- the flat portion 12 included in the protrusion 10 is a flat surface provided on the upper end of the protrusion 11 .
- the flat portion 12 may mean an upper surface of the protrusion 11 having a truncated cone shape or a polygonal truncated pyramid shape.
- the present invention provides a flat portion in which the upper portion of the projection 10 is a flat surface. As (12) is formed, the surface of the metal foil 100 exhibits relatively low illuminance, thereby minimizing the occurrence of high-frequency signal transmission loss.
- the flat portion 12 may have a circular, oval, or polygonal shape.
- the fine unevenness is formed on the surface, it can be seen that the case where the fine unevenness is densely formed to form a flat surface is included in the scope of the flat portion 12 of the present invention.
- the ratio (c/a) of the length (a) of the base of the protrusion ( 11 ) to the length (c) of the flat part ( 12 ) may be 0.1 to 0.7, specifically 0.2 to 0.6. As the ratio (c/a) is within the above range, it is possible to minimize the occurrence of signal transmission loss in the high frequency signal transmission process while increasing the adhesion between the metal foil 100 and the insulating resin substrate.
- the length c of the flat portion 12 may mean the longest length in the plane forming the flat portion 12 .
- the number of such protrusions 10 is the metal foil 100 per unit area (1 ⁇ m 2 ) 25 or less, specifically 5 to 20, more specifically 7 to 15.
- the protrusion 10 may be formed by electroless plating.
- the metal foil 100 according to the present invention is manufactured by electroless plating. After the metal seed foil is formed in the electroless plating process, crystal grains continuously grow on the metal seed foil, so that a plurality of protrusions 10 are formed on the surface.
- the metal foil 100 present in the can be manufactured.
- a separate roughening treatment is performed This process may be omitted, thereby improving the manufacturing efficiency of the metal foil 100 and/or the printed circuit board.
- the metal foil 100 is manufactured by electroless plating, it is possible to provide the metal foil 100 having a thinner thickness and porosity than the metal foil manufactured by electroplating.
- the electroless plating solution used during the electroless plating for manufacturing the metal foil 100 according to the present invention is not particularly limited, but may be an electroless plating solution including a metal ion source and a nitrogen-containing compound.
- the metal ion source may be at least one copper ion source selected from the group consisting of copper sulfate, copper chloride, copper nitrate, copper hydroxide, and copper sulfamate.
- the concentration of this metal ion source may be 0.5 to 300 g/L, specifically 100 to 200 g/L.
- the nitrogen-containing compound diffuses metal ions to form a plurality of projections 10 on the surface of the metal seed foil formed by the metal ion source.
- the nitrogen-containing compound is specifically purine, adenine, guanine, hypoxanthine, xanthine, pyridazine, methylpiperidine, 1,2-di- (2-pyridyl) ethylene, 1,2-di- (pyridyl) ) Ethylene, 2,2'-dipyridylamine, 2,2'-bipyridyl, 2,2'-bipyrimidine, 6,6'-dimethyl-2,2'-dipyridyl, di-2 -Pyryl ketone, N,N,N',N'-tetraethylenediamine, 1,8-naphthyridine, 1,6-naphthyridine, and may be at least one selected from the group consisting of terpyridine.
- the concentration of the nitrogen-containing compound may be
- the electroless plating solution may further include one or more additives selected from the group consisting of a chelating agent, a pH adjusting agent, and a reducing agent.
- the chelating agent is specifically tartaric acid, citric acid, acetic acid, malic acid, malonic acid, ascorbic acid, oxalic acid, lactic acid, succinic acid, potassium sodium tartrate, dipotassium tartrate, hydantoin, 1-methylhydantoin, 1,3-dimethyl group consisting of hydantoin, 5,5-dimethylhydantoin, nitriloacetic acid, triethanolamine, ethylenediaminetetraacetic acid, tetrasodiumethylenediaminetetraacetate, N-hydroxyethylenediaminetriacetate and pentahydroxypropyldiethylenetriamine It may be one or more selected from.
- the concentration of this chelating agent may be 0.5 to 600 g/L, specifically 300 to 450 g/L.
- the pH adjusting agent may be at least one selected from the group consisting of sodium hydroxide, potassium hydroxide and lithium hydroxide.
- a pH adjusting agent may be included in the electroless plating solution so that the pH of the electroless plating solution is adjusted to 8 or more, specifically 10 to 14, and more specifically 11 to 13.5.
- the reducing agent may be at least one selected from the group consisting of formaldehyde, sodium hypophosphite, sodium hydroxymethane sulfinate, glyoxylic acid, borohydride, and dimethylamine borane.
- the concentration of this reducing agent may be 1 to 20 g/L, specifically 5 to 20 g/L.
- Plating conditions for manufacturing the metal foil 100 by electroless plating with the electroless plating solution may be appropriately adjusted according to the thickness of the metal foil 100 .
- the electroless plating temperature may be 20 to 60 °C, specifically 30 to 40 °C
- the electroless plating time may be 2 to 30 minutes, specifically 5 to 20 minutes.
- the thickness of the metal foil 100 of the present invention manufactured by electroless plating may be 5 ⁇ m or less, specifically 0.1 to 1 ⁇ m.
- the component constituting the metal foil 100 of the present invention is not particularly limited as long as it is a known metal capable of forming a circuit layer of a printed circuit board, and specifically, it is selected from the group consisting of copper, silver, gold, nickel and aluminum. There may be more than one type.
- the metal foil with a carrier containing the metal foil mentioned above includes a carrier, a release layer and a metal layer, and the metal layer is made of the above-described metal foil, and this will be described in detail as follows.
- the carrier included in the metal foil with a carrier according to the present invention is to prevent the metal layer from being deformed in the process of movement or use of the metal foil with a carrier, metal such as copper, aluminum; Alternatively, it may be made of a polymer such as polyethylene terephthalate (PET), polyphenylene sulfide (PPS), or Teflon.
- a carrier such as copper, aluminum; Alternatively, it may be made of a polymer such as polyethylene terephthalate (PET), polyphenylene sulfide (PPS), or Teflon.
- PET polyethylene terephthalate
- PPS polyphenylene sulfide
- Teflon Teflon
- the release layer included in the metal foil with a carrier according to the present invention is to allow the carrier to be smoothly removed from the metal foil with a carrier bonded to the insulating resin substrate, and may be formed of a single layer or multiple layers.
- the release layer is a single layer (organic/inorganic composite layer) structure comprising an organic material composed of a nitrogen-containing cyclic compound and one selected from the group consisting of nickel, molybdenum, cobalt, phosphorus, manganese and iron;
- an organic material layer made of a cyclic compound containing nitrogen and an alloy layer comprising at least one selected from the group consisting of nickel, molybdenum, cobalt, phosphorus, manganese and iron may be combined with a multilayer structure.
- the thickness of this release layer may be 30 nm to 1 ⁇ m.
- the metal layer included in the metal foil with a carrier according to the present invention is made of the above-described metal foil, and a detailed description thereof will be omitted since it is the same as described above.
- the metal foil with a carrier according to the present invention may further include an electrolytic metal layer provided on the metal layer in order to increase the mechanical strength and conductivity of the metal layer.
- the electrolytic metal layer may be made of the same or different components as the metal layer.
- the metal foil with a carrier according to the present invention may further include a rust prevention layer provided on the metal layer for protection of the metal layer.
- the rust prevention layer may include zinc, chromium, and the like.
- the metal foil with a carrier according to the present invention may further include a diffusion barrier layer provided between the carrier and the alloy layer of the release layer to improve performance.
- the diffusion barrier layer may include nickel, phosphorus, or the like.
- the metal foil with a carrier according to the present invention may further include an antioxidant layer provided between the organic material layer and the metal layer of the release layer.
- the antioxidant layer may include nickel, phosphorus, or the like.
- the present invention provides a printed circuit board manufactured using the above-described metal foil.
- the printed circuit board according to the present invention includes a metal circuit layer and an insulating resin layer, and the metal circuit layer is derived from the above-described metal foil, which will be described as follows.
- the metal circuit layer included in the printed circuit board according to the present invention is a layer on which circuit wiring is formed.
- Such a metal circuit layer is obtained through the process of forming circuit wiring on the above-described metal foil, and the present invention can provide a printed circuit board showing fine and high resolution by the above-described metal foil.
- the printed circuit board according to the present invention is manufactured by performing an etching process on a laminate in which an insulating resin substrate and the above-described metal foil are bonded to form circuit wiring on the metal foil, wherein the metal foil has high adhesion with the insulating resin substrate. Since the thickness is relatively thin while being coupled, it is possible to form fine and high-resolution circuit wiring on metal foil.
- the present invention can provide a printed circuit board exhibiting high adhesion between the circuit wiring and the insulating resin substrate.
- the method of forming the circuit wiring is not particularly limited, and a subtractive process, an additive process, a full additive process, a semi-additive process, Alternatively, it may be a modified semi additive process.
- the insulating resin layer included in the printed circuit board according to the present invention is an insulating layer provided on the metal circuit layer.
- Such an insulating resin layer may be made of a conventionally known insulating resin substrate.
- the insulating resin layer may be formed of a resin substrate (eg, prepreg) having a structure in which inorganic or organic fibers are impregnated with a conventionally known resin.
- the printed circuit board according to the present invention may be manufactured using an insulating resin substrate or may be manufactured by a coreless method in which the insulating resin substrate is excluded.
- metal ion source CuSO 4 ⁇ 5H 2 0
- nitrogen-containing compound Guanine
- chelating agent potassium sodium tartrate
- pH adjusting agent An electroless plating solution containing (NaOH) and a reducing agent (28% formaldehyde) was used, and the electroless plating was performed at 30° C. for 10 minutes.
- Metal ion source CuSO 4 ⁇ 5H 2 0, NiSO 4 ⁇ 6H 2 0 200-210 g/L, nitrogen-containing compound (2,2-Bipyridine) 0.5-0.8 g/L, chelating agent (potassium sodium tartrate)
- a metal foil (copper foil) was formed through the same procedure as in Example 1, except that electroless plating was performed at 34° C. for 20 minutes with an electroless plating solution containing 405-420 g/L and a reducing agent (28% formaldehyde). did.
- Example 1 The surface and cross-section of the metal foils respectively formed in Example 1 and Comparative Example 1 were analyzed with a scanning electron microscope (SEM) and an ion cross-sectioning machine (CP), and the results are shown in FIGS. 3 and 4 .
- SEM scanning electron microscope
- CP ion cross-sectioning machine
- Example 1 which is a metal foil according to the present invention, a plurality of protrusions having a flat top were formed on the surface, whereas in Comparative Example 1, it was confirmed that a plurality of protrusions having a sharp top were formed on the surface. .
- Example 1 In order to confirm the adhesion of the metal foils formed in Example 1 and Comparative Example 1, the following process was performed. SUS plate / craft paper / release film / insulating resin substrate (DS-7409HG) / each metal foil (including a release layer) formed in Example 1 or Comparative Example 1 / kraft paper ( Craft paper) / SUS plate (plate) was laminated in this order and pressed under vacuum at 200 °C for 100 minutes at a pressure of 3.5 MPa to prepare a laminate.
- DS-7409HG release film / insulating resin substrate
- each metal foil (including a release layer) formed in Example 1 or Comparative Example 1 / kraft paper ( Craft paper) / SUS plate (plate) was laminated in this order and pressed under vacuum at 200 °C for 100 minutes at a pressure of 3.5 MPa to prepare a laminate.
- the peel strength between the metal foil and the insulating resin substrate was measured according to IPC-TM-650 standard (BMSP-90P Peel tester, Test speed: 50 mm/min, Test speed: 90°), and the results are shown in Table 1 below.
- Example 1 which is the metal foil according to the present invention, was applied was high.
- Example 1 In order to confirm the high frequency signal transmission performance of the metal foils formed in Example 1 and Comparative Example 1, the following process was performed. Copper foil (thickness: 18 ⁇ m)/insulating resin substrate (DS-7402, thickness: 50 ⁇ m)/in the order of each metal foil formed in Example 1 or Comparative Example 1, to prepare a laminated body laminated body and wire (width) by mSAP process : 40 ⁇ m, length: 10 cm) was formed. A printed circuit board was manufactured by laminating an insulating resin substrate (DS-7402) and copper foil again on the metal foil on which the wiring was formed, and then processing the Though hole. The high frequency signal transmission performance of the manufactured printed circuit board was measured with a PNA N5225A manufactured by KEYSIGHT, and the results of S 21 Parameter (dB) measured from a frequency of 10 MHz to 40 GHz are shown in Table 2 below.
- Example 1 which is the metal foil according to the present invention, was applied had excellent high-frequency signal transmission performance.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Abstract
Description
구분 | 박리 강도 |
실시예 1 적용 적층체 | 850 gf/cm |
비교예 1 적용 적층체 | 730 gf/cm |
10MHz | 10GHz | 20GHz | 30GHz | 40GHz | |
실시예 1 적용 인쇄회로기판 |
-0.226 dB | -7.701 dB | -13.966 dB | -19.345 dB | -25.556 dB |
비교예 1 적용 인쇄회로기판 |
-0.244 dB | -8.427 dB | -15.419 dB | -21.331 dB | -27.993 dB |
Claims (10)
- 상부가 평평한 복수의 돌기를 포함하는 금속박.
- 청구항 1에 있어서,상기 돌기는,원뿔대 형상 또는 다각뿔대 형상의 돌출부; 및상기 돌출부 상단에 구비되는 평탄부를 포함하는 것인 금속박.
- 청구항 2에 있어서,상기 돌출부 표면에 복수의 미세돌기가 형성된 것인 금속박.
- 청구항 2에 있어서,상기 돌출부의 표면조도(Ra)가 0.05 내지 0.3 ㎛인 것인 금속박.
- 청구항 2에 있어서,상기 돌출부의 밑변 길이(a) 대 상기 돌출부의 높이(b)의 비율(b/a)이 0.4 내지 1.5인 것인 금속박.
- 청구항 2에 있어서,상기 돌출부의 밑변 길이(a) 대 상기 평탄부의 길이(c)의 비율(c/a)이 0.1 내지 0.7인 것인 금속박.
- 청구항 2에 있어서,상기 다각뿔대 형상은 오각뿔대 형상, 육각뿔대 형상, 칠각뿔대 형상 및 팔각뿔대 형상으로 이루어진 군에서 선택되는 1종 이상인 것인 금속박.
- 청구항 1에 있어서,상기 돌기는 무전해 도금으로 형성되는 것인 금속박.
- 캐리어;상기 캐리어 상에 구비되는 이형층; 및상기 이형층 상에 구비되는 금속층을 포함하고,상기 금속층이 청구항 1 내지 청구항 8 중 어느 한 항에 따른 금속박으로 이루어지는 것인 캐리어 부착 금속박.
- 청구항 1 내지 청구항 8 중 어느 한 항에 따른 금속박에 회로배선이 형성된 금속 회로층을 포함하는 인쇄회로기판.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN202180083259.5A CN116569661A (zh) | 2020-12-10 | 2021-12-10 | 金属箔、包括该金属箔的附载体金属箔及包括该金属箔的印刷电路板 |
EP21903887.4A EP4236637A1 (en) | 2020-12-10 | 2021-12-10 | Metal foil, metal foil with carrier comprising same, and printed circuit board comprising same |
US18/038,671 US20240015885A1 (en) | 2020-12-10 | 2021-12-10 | Metal foil, metal foil with carrier comprising same, and printed circuit board comprising same |
JP2023535734A JP2023553991A (ja) | 2020-12-10 | 2021-12-10 | 金属箔、それを備えた金属箔を有するキャリア、及びそれを含むプリント回路基板 |
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KR1020200172267A KR102413300B1 (ko) | 2020-12-10 | 2020-12-10 | 금속박, 이를 포함하는 캐리어 부착 금속박 및 이를 포함하는 인쇄회로기판 |
KR10-2020-0172267 | 2020-12-10 |
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WO2022124842A1 true WO2022124842A1 (ko) | 2022-06-16 |
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US (1) | US20240015885A1 (ko) |
EP (1) | EP4236637A1 (ko) |
JP (1) | JP2023553991A (ko) |
KR (2) | KR102413300B1 (ko) |
CN (1) | CN116569661A (ko) |
TW (1) | TWI808565B (ko) |
WO (1) | WO2022124842A1 (ko) |
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KR20230169770A (ko) * | 2022-06-09 | 2023-12-18 | 와이엠티 주식회사 | 금속층, 이를 포함하는 캐리어 부착 금속박 및 이를 포함하는 인쇄회로기판 |
WO2024010277A1 (ko) | 2022-07-05 | 2024-01-11 | 주식회사 엘지화학 | 수지 및 이의 제조방법 |
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KR101852671B1 (ko) * | 2015-01-21 | 2018-06-04 | 제이엑스금속주식회사 | 캐리어 부착 동박, 적층체, 프린트 배선판, 및, 프린트 배선판의 제조 방법 |
KR102127757B1 (ko) * | 2020-01-28 | 2020-06-29 | 와이엠티 주식회사 | 회로기판 제조용 적층 구조체 및 회로기판의 제조방법 |
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2020
- 2020-12-10 KR KR1020200172267A patent/KR102413300B1/ko active IP Right Grant
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2021
- 2021-12-10 US US18/038,671 patent/US20240015885A1/en active Pending
- 2021-12-10 TW TW110146371A patent/TWI808565B/zh active
- 2021-12-10 EP EP21903887.4A patent/EP4236637A1/en active Pending
- 2021-12-10 JP JP2023535734A patent/JP2023553991A/ja active Pending
- 2021-12-10 WO PCT/KR2021/018712 patent/WO2022124842A1/ko active Application Filing
- 2021-12-10 CN CN202180083259.5A patent/CN116569661A/zh active Pending
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JP2004095911A (ja) * | 2002-08-30 | 2004-03-25 | Dainippon Printing Co Ltd | プリント配線基板、プリント配線基板の製造方法、及びバンプ付導体板 |
KR20140128269A (ko) * | 2013-04-26 | 2014-11-05 | 제이엑스 닛코 닛세키 킨조쿠 가부시키가이샤 | 고주파 회로용 동박, 고주파 회로용 구리 피복 적층판, 고주파 회로용 프린트 배선판, 고주파 회로용 캐리어가 부착된 동박, 전자 기기, 및 프린트 배선판의 제조 방법 |
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KR20180019190A (ko) | 2015-07-23 | 2018-02-23 | 미쓰이금속광업주식회사 | 수지 부착 구리박, 동장 적층판 및 프린트 배선판 |
KR20190143619A (ko) * | 2018-06-21 | 2019-12-31 | 와이엠티 주식회사 | 회로기판용 자재 및 인쇄회로기판 제조방법 |
KR102054673B1 (ko) * | 2019-02-08 | 2019-12-11 | 와이엠티 주식회사 | 스폰지형 극동박을 이용한 인쇄회로기판용 전자파 차폐소재 및 이를 이용한 인쇄회로기판의 제조방법 |
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US20240015885A1 (en) | 2024-01-11 |
KR20220082391A (ko) | 2022-06-17 |
EP4236637A1 (en) | 2023-08-30 |
KR20220084256A (ko) | 2022-06-21 |
KR102413300B1 (ko) | 2022-06-27 |
JP2023553991A (ja) | 2023-12-26 |
TW202233030A (zh) | 2022-08-16 |
TWI808565B (zh) | 2023-07-11 |
CN116569661A (zh) | 2023-08-08 |
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