WO2007026562A2 - 金属膜およびその製法、並びに、積層型電子部品の製法および積層型電子部品 - Google Patents
金属膜およびその製法、並びに、積層型電子部品の製法および積層型電子部品 Download PDFInfo
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- WO2007026562A2 WO2007026562A2 PCT/JP2006/316321 JP2006316321W WO2007026562A2 WO 2007026562 A2 WO2007026562 A2 WO 2007026562A2 JP 2006316321 W JP2006316321 W JP 2006316321W WO 2007026562 A2 WO2007026562 A2 WO 2007026562A2
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- metal film
- group
- electronic component
- elements
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- 229910052751 metal Inorganic materials 0.000 title claims description 140
- 239000002184 metal Substances 0.000 title claims description 140
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000004020 conductor Substances 0.000 claims description 44
- 238000007747 plating Methods 0.000 claims description 35
- 230000002093 peripheral effect Effects 0.000 claims description 33
- 239000000919 ceramic Substances 0.000 claims description 26
- 238000010304 firing Methods 0.000 claims description 23
- 230000000737 periodic effect Effects 0.000 claims description 20
- 229910052717 sulfur Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 229910052796 boron Inorganic materials 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 125
- 239000011572 manganese Substances 0.000 description 50
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 37
- 239000003985 ceramic capacitor Substances 0.000 description 18
- 230000008018 melting Effects 0.000 description 10
- 238000002844 melting Methods 0.000 description 10
- 239000000654 additive Substances 0.000 description 9
- 230000035939 shock Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 8
- 229910000765 intermetallic Inorganic materials 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 230000032798 delamination Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000007847 structural defect Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229910018643 Mn—Si Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/008—Selection of materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/008—Selection of materials
- H01G4/0085—Fried electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- 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.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
Definitions
- Metal film manufacturing method thereof, manufacturing method of multilayer electronic component, and multilayer electronic component
- the present invention relates to a metal film and a method for producing the same, and a method for producing a laminated electronic component and a laminated electronic component, and in particular, a metal film containing Ni as a main component and a method for producing the same.
- the present invention relates to a method of manufacturing a multilayer electronic component and a multilayer electronic component.
- multilayer ceramic capacitors which are representative examples of multilayer electronic components, have been developed in response to the demand for miniaturization and high capacity, and the thickness of the dielectric layer, which is a ceramic layer, and the internal electrode layer, which is a conductor layer. Thinning is achieved.
- a method of forming a conductor pattern as an internal electrode layer on a film by a physical thin film forming method such as sputtering or vapor deposition, or a chemical thin film forming method such as electroless plating for example, Patent Document 1.
- a method formed by an electroplating method using an electrolytic solution such as nickel for example, Patent Document 2 has been proposed.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-243650
- Patent Document 2 Japanese Patent Laid-Open No. 2002-329634
- Patent Document 3 Japanese Patent Laid-Open No. 2003-309037
- the conductor pattern can be easily thinned.
- plating films obtained by the electroplating method have a melting point of 640 ° C in the fired conductor layer when sulfur or the like is contained in the plating film.
- Ni almost Intermetallic compounds such as Ni S that do not dissolve in solid form will segregate.
- FIG. 5 is a schematic diagram showing the internal structure of a multilayer electronic component using a conventional metal film as a conductor layer.
- FIG. 5 shows a rectangular parallelepiped multilayer electronic component cut perpendicularly to the direction of the external electrodes provided at the opposing positions.
- intermetallic compounds such as Ni S
- the present invention provides a metal film capable of suppressing the formation of voids at the end of the conductor layer and the generation of discontinuous portions of the conductor pattern even when a large-scale production firing furnace is used, and a method for producing the metal film
- an object of the present invention is to provide a multilayer electronic component formed by such a metal film and a manufacturing method thereof.
- the metal film of the present invention contains Ni as a main component, contains Mn and an element selected from the group of periodic table 3b to 6b elements, and contains Mn and the periodic tables 3b to 6b.
- Group element group power The selected element is present at a higher concentration in the periphery than in the center of the metal film.
- the total concentration of Mn in the peripheral part of the metal film and the element selected from the group power of the group 3b to 6b of the periodic table should be in the range of 1.05 to 3 times that in the central part.
- the content of Mn in the metal film is preferably 2 ⁇ 10 1 to 5% by mass.
- the elements for which the group power of the Group 3b to 6b elements in the periodic table in the metal film is selected are preferably sulfur, boron, and phosphorus.
- Such a metal film is produced by using a Ni plating solution containing Mn and an element whose group power of group 3b to 6b of the periodic table is selected, with a current density of 4.5 to 20AZdm 2 Under these conditions, there is a plating process for precipitating Mn and an element whose group power of group 3b to 6b is selected together with Ni. All metal components of the metal film included in the Ni plating solution, the content of 2 X 10- 1 ⁇ 5 wt% of Mn, the content of element selected from the group of the periodic table 3b ⁇ 6b group element a is preferably 1 X 10- 1 ⁇ 3 X 10- 1 % by weight.
- the above metal film is transferred onto the ceramic green sheet, and a conductor pattern is formed on the ceramic green sheet. Forming a pattern sheet, and stacking a plurality of the pattern sheets and firing them.
- the multilayer electronic component of the present invention thus obtained is a multilayer electronic component including an electronic component body in which ceramic layers and conductor layers are alternately stacked, and the conductor layer is obtained from the metal film. Is.
- Mn and an element selected from group elements of group 3b to 6b of the periodic table coexist in the peripheral part of the metal film containing Ni as a main component, and the central part of the metal film By segregating at a higher concentration, the melting point of the peripheral portion of the metal film is increased, so that shrinkage due to heating can be suppressed.
- an intermetallic compound is formed from Mn prayed on the periphery of the metal film and an element for which the group force of Group 3b to 6b elements of the periodic table is also selected, it is used as a conductor layer for electronic parts and the like. Since the plastic deformation and shrinkage during heating can be suppressed, the effective area of the conductor layer can be increased and the adhesion to the ceramic layer can be increased.
- the multilayer electronic component using such a metal film can suppress variation in firing shrinkage of the conductor layer even in a mass production furnace where the temperature varies, and suppress structural defects such as breakage and voids in the conductor layer after firing. And high capacity.
- FIG. 1 is a plan view of a metal film of the present invention.
- FIG. 2 is a schematic view showing a Ni plating bath for producing the metal film of the present invention.
- FIG. 3 is a process diagram for producing the multilayer ceramic capacitor of the present invention.
- FIG. 4 is a schematic cross-sectional view of the multilayer electronic component of the present invention.
- FIG. 5 is a schematic diagram showing the internal structure of a multilayer electronic component using a conventional metal film as a conductor layer.
- FIG. 1 is a plan view of the metal film of the present invention.
- the metal film 1 of the present invention contains Ni as a main component and contains Mn and an element selected from the group of group 3b-6b elements in the periodic table (hereinafter referred to as “3b-6b group element”).
- Mn and 3b-6b group elements are segregated at a higher concentration in the peripheral part 5 than in the central part 3 of the metal film 1.
- the state that Mn and the 3b-6b group element are segregated at a higher concentration in the peripheral portion 5 than in the central portion 3 of the metal film 1 is the state of the Mn and 3b-6b group elements.
- the ratio of the average value in the relationship between the part Z center is 1.05 or more.
- the peripheral portion 5 differs depending on the size of the metal film 1 and is not particularly limited.
- the metal film 1 having a long side of 5 mm and a short side of 1.5 mm is 0. This refers to a range of 1 to 0.7 mm, preferably 0.1 to 0.4 mm, and the center side surrounded by the peripheral portion 5 is referred to as a central portion 3.
- the concentration of Mn in the peripheral part 5 of the metal film 1 and the additive carotenous elements such as S is in the range of 1.05 to 3 times that in the central part 3 in the same plane It is preferable that If the combined concentration of Mn and S in the peripheral part 5 is 1.05 times or more that in the central part 3, a difference from the central part 3 where the amount of additive elements such as Mn and S is small can be provided. For this reason, it is possible to suppress deformation of the peripheral portion 5 of the metal film 1 made of plating, which is said to be baked and contracted to easily form voids at the end portions.
- the metal film 1 mainly composed of Ni can have a rigidity close to that of the metal film 1. Therefore, it is possible to maintain the followability to the member to which the metal film 1 is bonded, and to maintain the continuity of the central portion 3 and the peripheral portion 5 as the metal film 1.
- the width of the peripheral part 5 where the Mn and 3b-6b group elements are more highly concentrated than the central part 3 is at least the thickness dimension of the metal film 1 It is preferably larger than the width corresponding to. If the width of the peripheral portion 5 of the metal film 1 is at least larger than the width corresponding to the thickness dimension of the metal film 1, the effect of increasing the melting point due to the high concentration layer of the additive element in the peripheral portion 5 can be enhanced. There are advantages.
- the high concentration region of Mn and the 3b-6b group element may be formed almost on the entire surface while leaving a part of the central portion 3. If the high-concentration region of Mn and 3b-6b group elements is formed on almost the entire surface of the metal film 1, there is an advantage that shrinkage of the metal film 1 due to heating can be suppressed over the entire surface.
- the content of Mn in the metal film 1 of the present invention is a 2 X 10- 1 ⁇ 5 wt% in terms of by generating intermetallic compound suppresses the melting of the metal film 1 itself to ensure the desired effective area Preferably there is.
- the content of the Mn metal film 1 is a 2 X 10- 1 wt% or more, increasing the melting point of Ni Therefore, the effect of adding Mn is increased, and there is an advantage in suppressing shrinkage when heated.
- the conductivity of the metal film 1 mainly composed of Ni can be increased, and the increase in rigidity due to the addition of Mn is suppressed. This has the advantage of maintaining the ability to follow the member to be bonded.
- the metal film 1 of the present invention contains a concentration of an element in which the group power of the 3b-6b group element is also selected.
- the group 3b elements in the periodic table can be represented by element symbols B, Al, Ga, In, 4b group elements C, Si, Ge, Sn, Pb force 5b group elements P, As , Sb, Bi force 6 As group B element, S, Se, Te, Po force are exemplified respectively.
- 3b Able to use any component as long as it can be dissolved in a fitting bath as a group 6b element Sulfur (S ), Boron (B), and phosphorus (P) are desirable, especially when 3b-6b group elements are added, the pH and ion concentration of the plating bath containing Ni can be changed. Sulfur (S) is particularly desirable as a reasoning force.
- the content of 3b - the 6b group element of the metal film 1 is 1 in terms of ensuring desired effective area by generating intermetallic compound suppresses the melting of the metal film 1 itself X 10- 1 ⁇ 3 it is preferable X 10- 1 is a mass%.
- the content of 3b - the 6b group element of the metal film 1 is in 1 X 10- 1 wt% or more, the element component is dispersed throughout the metal film 1, stronger than multi no longer is a region which is formed of an alloy This is effective for forming a simple joint.
- 3b - the the content of Group 6b element is a 3 X 10- 1 wt% or less, which is also similar to Mn, it is possible to increase the conductivity of the metal film 1 composed mainly of Ni, The increase in rigidity is suppressed, and as a result, the followability to the member to be bonded is maintained.
- the metal film 1 of the present invention is useful as a conductor layer for an electronic component or a wiring board having a ceramic layer or an organic resin as an insulating layer.
- a gap between the insulating layer and the insulating layer is preferably a thickness that can reduce the level difference on the insulating layer. 1 ⁇ m or less as a suitable thickness for multilayer ceramic capacitors, etc.
- the lower limit of conductivity is preferably 0.1 ⁇ m or more because it has conductivity and can suppress discontinuous layers due to firing shrinkage even after heating.
- the quantitative analysis of the metal component in the metal film 1 of the present invention can be evaluated by ICP mass spectrometry (ICP-MS) after dissolving the metal film 1 in an acid or the like.
- ICP-MS ICP mass spectrometry
- the distribution of Mn and 3b-6b group elements in the metal film 1 can be evaluated by a time-of-flight secondary ion mass spectrometer (TOF-SIMS).
- the thickness of the metal film 1 can be evaluated by an electron micrograph of the cross section of the metal film 1.
- FIG. 2 (a) is a schematic view showing a Ni plating bath for producing the metal film 1 of the present invention.
- a Ni plating solution 11 containing Mn (M 1) and a 3b-6b group element (M2) is prepared.
- the metal plating 15 on the iron forming the resist pattern 13 or the metal member 15 such as stainless steel is electroplated.
- Mn and 3b-6b group elements are precipitated together with Ni by the method, and additive elements such as Mn and S are precipitated at a high concentration in the peripheral portion 5 by adjusting the applied voltage and energizing time.
- Metal film 1 is formed.
- Mn and 3b-6b group elements When the current density is in the range of 4.5 to 20 AZdm 2 above, particularly in the range of 5.5 to 15 AZdm 2 , Mn and 3b-6b group elements can be precipitated simultaneously, Mn and 3b-6b group elements
- the concentration ratio of the peripheral portion 5 to the central portion 3 of the metal film 1 can be adjusted to a range of 1.3 to 4 times for the combined concentration of and.
- the concentration ratio of the peripheral portion 5 to the central portion 3 of the metal film 1 is in the range of 1.3 to 4 times, the effective area of the metal film 1 after firing can be increased and the capacitance can be increased.
- the reason for forming a highly crystalline and high-purity plating film is that there is an appropriate range depending on the 3b to 6b elements to be added, and the Ni plating bath contains sulfur. It is preferable that the pH is in the range of 3.5-5.
- an adhesive film containing Ni as a main component formed on the metal member 15 is adhered as necessary.
- the polyimide coated with the agent may be transferred to a substrate such as an organic resin sheet such as polyester.
- the metal film 1 of the present invention is preferably stored in this state.
- FIG. 3 is a process diagram for manufacturing a multilayer ceramic capacitor as an example of the multilayer electronic component of the present invention.
- a metal film 21a prepared by the above-described manufacturing method is prepared.
- the metal film 21a is transferred onto the ceramic green sheet 21b to form the pattern sheet 21.
- the dielectric material composing the ceramic green sheet 21b is preferably composed mainly of barium titanate in terms of high dielectric constant. This dielectric material is intended to improve dielectric properties and sinterability. It is desirable to contain various additives and glass components.
- the thickness of the ceramic dielectric sheet 21b is preferably 2 ⁇ m or less as the thickness of the dielectric layer after firing, which is preferable from the viewpoint of increasing the capacity.
- a plurality of pattern sheets 21 are laminated to form a laminated molded body 25, and then (d) the laminated molded body 25 is cut into a lattice shape (part of the cut portions are lined).
- Electronic component body Forms a molded body. This electronic component body molded body is laminated so that the metal film 21a is exposed on one end face for each layer. Next, the electronic component main body is fired to form an electronic component main body.
- the metal film 21a according to the present invention contains Ni as a main component and contains Mn and the 3b-6b group element.
- the Mn and 3b-6b group elements are included.
- the metal film 1 is segregated at a higher concentration in the peripheral part 5 than in the central part 3.
- the metal film 21a of the present invention and the metal film formed in the fired metal film 21a (conductor layer)
- a compound for example, when Mn and sulfur (S) are contained, an intermetallic compound such as MnS is dispersed between Ni metal which is the main component of the plating film. .
- the intermetallic compound described above is easier to combine with the porcelain that forms the ceramic layer compared to the Ni metal material alone, so that the bonding between the conductor layer and the ceramic layer is possible. Can increase the sex.
- Fig. 4 (a) is a schematic cross-sectional view showing a cross section perpendicular to the opposing direction of the external electrodes provided at both ends of a rectangular parallelepiped multilayer electronic component
- Fig. 4 (b) is a diagram of the same multilayer electronic component. It is a schematic diagram of the longitudinal cross-section which shows the cross section of the opposing direction of the external electrode in components.
- external electrodes 43 are formed at both ends of a rectangular parallelepiped electronic component body 41.
- the electronic component body 41 includes a conductor layer 45 and a ceramic layer 47. They are alternately stacked.
- the conductor layers 45 are alternately exposed at opposite end faces of the electronic component body 41, and are electrically connected to the external electrodes 43 alternately.
- the conductor layer 45 according to the multilayer electronic component of the present invention has Ni as a main component, and Mn and 3b-6b group elements are present at a higher concentration in the peripheral portion 5 than in the central portion 3 of the metal film 1.
- Mn and 3b-6b group elements are present at a higher concentration in the peripheral portion 5 than in the central portion 3 of the metal film 1.
- the Mn-Si composite oxide is formed at the interface between the conductor layer 45 and the ceramic layer 47. Saddle is formed, and this composite oxide can further improve the adhesion between these two layers, and can improve the thermal shock resistance.
- a multilayer ceramic capacitor was fabricated and evaluated for the metal film 21a and multilayer electronic component of the present invention.
- a photosensitive resist resin was applied to the surface to form a resist pattern.
- As the resist pattern a plurality of rectangular patterns are arranged in a staggered pattern. NOTAR The size of each unit was 5 mm on the long side and 1.5 mm on the short side.
- sulfate ions containing a 3b-6b group element were dissolved in a plating bath, and Mn dissolved manganese sulfate and combined with a Ni anode for electroplating.
- the concentration of each elemental component in 21a was adjusted by changing the element concentration in the plating bath and the current density at the time of plating.
- a predetermined amount of a solvent was mixed, pulverized and kneaded using a vibration mill to prepare a slurry, and then a ceramic green sheet having a thickness of 2.4 / zm was prepared on a carrier film made of polyester by a die coater.
- the above-described metal film 21a containing Ni as a main component is placed on the ceramic green sheet 21b, and the conductive sheet is transferred by thermocompression transfer under conditions of 80 ° C and 80kgZcm 2. 21 was produced.
- the laminated molded body is cut into a lattice shape to obtain an electronic component body molded body.
- the electronic component body molded body is subjected to 300 ° C to 500 ° C in a non-acidic atmosphere.
- the electronic component body was fabricated by firing at 1170 ° C for 2 hours in the same atmosphere.
- the outer dimensions of the multilayer ceramic capacitor thus obtained are 1.25 mm in width, 2. Omm in length, and 1.25 mm in thickness, and the thickness of the dielectric layer interposed between the internal electrode layers is 2 m.
- the conductor layer 45 occupies 70% of the ceramic layer 47. It was.
- the concentration distribution of Mn and 3b-6b elements in terms of counts for the metal film 21a obtained by electroplating we evaluated the concentration distribution of Mn and 3b-6b elements in terms of counts for the metal film 21a obtained by electroplating.
- three metal films 21a having a long side of 5 mm, a short side of 1.5 mm, and a thickness of 0.3 mm are selected, and the central part 3 of the metal film 2l a surface is selected for each pattern.
- Arbitrarily 4 power points, and the peripheral part 5 (at 0.2 mm from the edge) of the four sides of the same metal film 21a are evaluated at 4 points for each 1 force point, averaged for each, and the central part 3 And the concentration ratio of the peripheral part 5 were obtained.
- the concentration for determining the concentration ratio is the concentration of the total number of elements of Mn and 3b-6b group elements (total concentration).
- the content of the metal element in the metal film 21a is ICP — MS was used for evaluation.
- a thermal shock test was conducted on the obtained multilayer ceramic capacitor sample, and the number of occurrences of delamination was examined.
- the thermal shock test was conducted by setting the temperature of the solder bath to 400 ° C and immersing a multilayer ceramic capacitor sample in this bath and checking the number of delaminations. The results are shown in Table 1.
- the metal film prepared using the Ni plating solution under the current density condition within the scope of the present invention has a higher concentration of Mn and 3b-6b elements in the peripheral part 5 than in the central part 3 of the metal film 21a. (Sample Nos. 3-7, 9, 10). In Sample Nos. 3 to 7, 9, and 10 using these metal films 21a, no gap was observed at the end of the inner conductor layer 45 in the cross-sectional observation of the multilayer ceramic capacitor, and the capacitance was 9.5 F or more. In the thermal shock test, the number of delaminations was 1Z100 or less, which was a good result.
- sample No. 1 that does not contain Mn in the Ni plating film, and sample that uses metal film 21a that does not have a concentration difference between central part 3 and peripheral part 4 of metal film 21a even if it contains Mn and sulfur
- the capacitance value after firing was low, or over 4Z 100 defects of delamination occurred in the thermal shock test.
- Sample No. 8 where the current density was 30AZdm 2 , the metal film 21a was peeled off during the plating process, making it impossible to produce a multilayer ceramic capacitor.
- the firing temperature is 1150 to 1200 ° C, and the same capacitance as the characteristics at 1170 ° C is obtained.
- the defective rate in the thermal shock test was less than 1Z100.
- Sample No. 11 using a composite metal powder outside the present invention has a low capacitance of 9 ⁇ F or less or a thermal shock resistance at a firing temperature of 1150 to 1200 ° C. There were many delaminations in the test, and there were differences depending on the firing temperature.
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Description
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Priority Applications (4)
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KR1020087004714A KR101148857B1 (ko) | 2005-08-29 | 2006-08-21 | 금속막 및 그 제조법, 적층형 전자 부품의 제조법 및적층형 전자 부품 |
JP2007533183A JPWO2007026562A1 (ja) | 2005-08-29 | 2006-08-21 | 金属膜およびその製法、並びに、積層型電子部品の製法および積層型電子部品 |
US12/065,482 US7957119B2 (en) | 2005-08-29 | 2006-08-21 | Metal films, methods for production thereof, methods for production of laminated electronic components, and laminated electronic components |
CN200680030947A CN101688321A (zh) | 2005-08-29 | 2006-08-21 | 金属膜及其制法、层叠型电子部件制法及层叠型电子部件 |
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JP (1) | JPWO2007026562A1 (ja) |
KR (1) | KR101148857B1 (ja) |
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Cited By (2)
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US11676764B2 (en) | 2019-12-06 | 2023-06-13 | Taiyo Yuden Co., Ltd. | Ceramic electronic component with adjusted hydrogen titanium ratio |
WO2024172070A1 (ja) * | 2023-02-17 | 2024-08-22 | 株式会社村田製作所 | 電子部品 |
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DE102014209106A1 (de) * | 2013-06-05 | 2014-12-11 | Ceramtec Gmbh | Metallisierung auf keramischen Substraten |
CN105356520A (zh) * | 2015-11-24 | 2016-02-24 | 上海电力学院 | 一种改善风电场低电压穿越能力的控制方法 |
JP6960595B2 (ja) * | 2017-01-13 | 2021-11-05 | パナソニックIpマネジメント株式会社 | 厚導体内蔵プリント配線板及びその製造方法 |
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EP0423738B1 (en) * | 1989-10-18 | 1996-06-12 | TDK Corporation | Ceramic multilayer chip capacitor and method for making |
JPH049492A (ja) * | 1990-04-26 | 1992-01-14 | Nippon Kagaku Sangyo Kk | 硬質ニッケル合金めっき浴 |
US6099624A (en) * | 1997-07-09 | 2000-08-08 | Elf Atochem North America, Inc. | Nickel-phosphorus alloy coatings |
JP2000243650A (ja) | 1999-02-22 | 2000-09-08 | Matsushita Electric Ind Co Ltd | 積層セラミックコンデンサおよびその製造方法 |
JP2002180296A (ja) * | 2000-12-11 | 2002-06-26 | Toyo Kohan Co Ltd | 電池ケース用表面処理鋼板、その鋼板を使用した電池ケース及び電池 |
JP3472286B2 (ja) * | 2000-12-12 | 2003-12-02 | キヤノン株式会社 | 定着ベルトおよび像加熱定着装置 |
JP2002206188A (ja) * | 2001-01-09 | 2002-07-26 | Sumitomo Electric Fine Polymer Inc | 電鋳ニッケルベルト、被覆ニッケルベルト、及び被覆ニッケルベルトの製造方法 |
JP4707844B2 (ja) * | 2001-02-09 | 2011-06-22 | 住友電工ファインポリマー株式会社 | 電鋳ニッケルベルト、被覆ニッケルベルト、及び被覆ニッケルベルトの製造方法 |
JP4671530B2 (ja) | 2001-04-26 | 2011-04-20 | 京セラ株式会社 | 積層型電子部品 |
JP3934983B2 (ja) | 2002-04-15 | 2007-06-20 | 京セラ株式会社 | 積層型電子部品およびその製法 |
JP3745744B2 (ja) * | 2003-04-16 | 2006-02-15 | 住友電気工業株式会社 | 金属構造体の製造方法およびその方法により製造した金属構造体 |
US7224570B2 (en) * | 2004-06-28 | 2007-05-29 | Kyocera Corporation | Process for preparing multilayer ceramic capacitor and the multilayer ceramic capacitor |
US7158364B2 (en) * | 2005-03-01 | 2007-01-02 | Tdk Corporation | Multilayer ceramic capacitor and method of producing the same |
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2006
- 2006-08-21 KR KR1020087004714A patent/KR101148857B1/ko active IP Right Grant
- 2006-08-21 WO PCT/JP2006/316321 patent/WO2007026562A2/ja active Application Filing
- 2006-08-21 US US12/065,482 patent/US7957119B2/en active Active
- 2006-08-21 JP JP2007533183A patent/JPWO2007026562A1/ja active Pending
- 2006-08-21 CN CN200680030947A patent/CN101688321A/zh active Pending
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Cited By (2)
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US11676764B2 (en) | 2019-12-06 | 2023-06-13 | Taiyo Yuden Co., Ltd. | Ceramic electronic component with adjusted hydrogen titanium ratio |
WO2024172070A1 (ja) * | 2023-02-17 | 2024-08-22 | 株式会社村田製作所 | 電子部品 |
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US7957119B2 (en) | 2011-06-07 |
JPWO2007026562A1 (ja) | 2009-03-05 |
CN101688321A (zh) | 2010-03-31 |
KR101148857B1 (ko) | 2012-05-30 |
TW200735144A (en) | 2007-09-16 |
US20100003475A1 (en) | 2010-01-07 |
TWI399769B (zh) | 2013-06-21 |
KR20080039945A (ko) | 2008-05-07 |
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