EP0919644B1 - Verfahren zur Herstellung eines metallischen Verbundbands - Google Patents

Verfahren zur Herstellung eines metallischen Verbundbands Download PDF

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Publication number
EP0919644B1
EP0919644B1 EP98121473A EP98121473A EP0919644B1 EP 0919644 B1 EP0919644 B1 EP 0919644B1 EP 98121473 A EP98121473 A EP 98121473A EP 98121473 A EP98121473 A EP 98121473A EP 0919644 B1 EP0919644 B1 EP 0919644B1
Authority
EP
European Patent Office
Prior art keywords
tin
coating
silver
layer
alloy
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.)
Expired - Lifetime
Application number
EP98121473A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0919644A1 (de
Inventor
Udo Dipl.-Ing. Adler
Klaus Dipl.-Ing. Schleicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stolberger Metallwerke GmbH and Co KG
Original Assignee
Stolberger Metallwerke GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stolberger Metallwerke GmbH and Co KG filed Critical Stolberger Metallwerke GmbH and Co KG
Publication of EP0919644A1 publication Critical patent/EP0919644A1/de
Application granted granted Critical
Publication of EP0919644B1 publication Critical patent/EP0919644B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08Tin or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26After-treatment
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36Elongated material
    • C23C2/40Plates; Strips
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/30Electroplating: Baths therefor from solutions of tin
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/46Electroplating: Baths therefor from solutions of silver

Definitions

  • the invention relates to a method for producing a with a tin-silver alloy coated composite tape for the production of electrical contact components.
  • Tin-silver is a very good contact material. He is characterized above all by his low electrical resistance, its hardness and its abrasion resistance.
  • US-A-5 514 261 discloses in this context a way to galvanize a silver-tin alloy deposit from a cyanide-free bath.
  • the bath is made using silver as a nitrate or diamine complex, tin as a soluble tin (II) or tin (IV) compound and mercaptoalkane carboxylic acids and sulfonic acids. From this bathroom layers of silver-tin alloys with a silver content of about Separate 20% by weight to 99% by weight.
  • the silver content of a coating produced in this way is relatively high. Layers with a lower silver content cannot be achieved. Furthermore, the electroplated layer fine-celled with a slight micro-roughness. The layer is brittle and only tolerates low bending stresses.
  • the invention is based on the object Process to demonstrate which is the production of a high quality tin-silver coating on an electrically conductive base material.
  • the base material is then coated in a first coating step made of tin or a tin alloy.
  • a silver layer is deposited thereon.
  • the resulting diffusion processes create a tin-silver alloy layer. This points towards the initially heterogeneous one Layers improved properties.
  • the coating has a high electrical Conductivity and very good mechanical properties. It is abrasion resistant and hard. The thermal conductivity is also high.
  • the coating ensures effective corrosion protection and forms at the same time a soldering aid. This is particularly the case with electrical or electronic components advantageous.
  • the tin layer can be melted and the silver layer galvanically be applied, as provided for in claim 2. Furthermore, both the tin layer and the silver layer are applied galvanically (claim 3).
  • a Another advantageous procedure according to claim 4 is the tin layer in the hot-dip process and then the silver layer by sputtering, the so-called sputtering. It is also possible apply both the tin layer and the silver layer by sputtering (Claim 5).
  • a composite tape can be produced, which is high mechanical and physical requirements for the manufacture of electrical Contact components are sufficient.
  • the tin-silver alloy coating can also the temperature resistance under operating conditions compared to a conventional one Tin or tin-lead coating can be improved: the composite tape is easy to process by punching, cutting, bending or deep drawing. Also has it has high strength with good spring properties.
  • the electrical Conductivity is high and solder wettability is good.
  • the coating applied is even in structure and thickness. Furthermore, it is non-porous. Thanks to the tin-silver alloy coating the base material is reliable against oxidation and Corrosion protected.
  • heat treatment in particular as diffusion annealing, can be provided be (claim 6).
  • the heat treatment ensures a reliable one Compensation for possible differences in concentration in the layer structure of the applied coating.
  • the heat treatment is preferably carried out of the composite tape in a continuous process with a temperature between 140 ° C and 180 ° C.
  • Chemical passivation can be used to protect against tarnishing before the heat treatment the surface using conventional inhibitors.
  • heat treatment can also be carried out on the tinned starting strip become.
  • a temperature range between 140 is also advantageous here and 180 ° C to look at.
  • the silver coating is applied in a further manufacturing step.
  • tin layer applied in the first coating step there is also tin proven a tin alloy with portions of lead.
  • the tin layer becomes molten
  • a tin alloy has also proven advantageous, the 0.1 to 10% by weight of at least one of the elements from the group silver, Aluminum, silicon, copper, magnesium, iron, nickel, manganese, zinc, zirconium, Contains antimony, rhodium, palladium and platinum.
  • the rest is made of tin including unavoidable impurities and low deoxidation and processing additives.
  • a cobalt-containing tin alloy with a cobalt content can also be used between 0.001 to 5.0% by weight. Furthermore, this tin alloy can be 0.1 to 10% by weight bismuth and / or 0.1 to 10% by weight indium may be added.
  • cobalt leads to the formation of a fine-grained, uniform intermetallic Funded phase between base material and coating. Further the overall layer hardness is increased while the bendability is improved. Furthermore the shear strength can be improved and the elastic modulus reduced. bismuth and indium lead to an additional increase in hardness through mixed crystal hardening.
  • the invention enables the production of one in its mechanical and physical Properties of high quality coating made of a tin-silver alloy the initial volume.
  • the tin layer in a thickness between 0.5 microns and 10.0 microns applied, preferably between 0.8 ⁇ m and 3.0 ⁇ m.
  • the subsequent silver layer has a thickness between 0.1 ⁇ m and 3.5 ⁇ m, preferably between 0.2 ⁇ m and 1.0 ⁇ m. This heterogeneous layers then homogenize by diffusion into a tin-silver alloy layer.
  • the composite tape according to the invention is therefore particularly good for the production of electrical contact components suitable, which bending and shear stresses are exposed, for example from electrical plug or clamp connectors.
  • electrical plug or clamp connectors Such Connectors can be inserted and removed several times without the contact resistance changes significantly.
  • composite material produced according to the invention can also be used for production of electromechanical and electro-optical components or semiconductor components and the like are used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Non-Insulated Conductors (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Wire Processing (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Coating With Molten Metal (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Manufacture Of Switches (AREA)
  • Continuous Casting (AREA)
EP98121473A 1997-11-26 1998-11-11 Verfahren zur Herstellung eines metallischen Verbundbands Expired - Lifetime EP0919644B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752329 1997-11-26
DE19752329A DE19752329A1 (de) 1997-11-26 1997-11-26 Verfahren zur Herstellung eines metallischen Verbundbands

Publications (2)

Publication Number Publication Date
EP0919644A1 EP0919644A1 (de) 1999-06-02
EP0919644B1 true EP0919644B1 (de) 2002-02-20

Family

ID=7849831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121473A Expired - Lifetime EP0919644B1 (de) 1997-11-26 1998-11-11 Verfahren zur Herstellung eines metallischen Verbundbands

Country Status (9)

Country Link
US (2) US6207035B1 (ja)
EP (1) EP0919644B1 (ja)
JP (1) JPH11222659A (ja)
KR (1) KR19990045402A (ja)
AT (1) ATE213508T1 (ja)
DE (2) DE19752329A1 (ja)
DK (1) DK0919644T3 (ja)
ES (1) ES2172851T3 (ja)
PT (1) PT919644E (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012017520A1 (de) * 2012-09-05 2014-03-06 Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg Verfahren zur Zinnbeschichtung eines metallischen Substrats,Verfahren zur Härtung einer Zinnschicht, sowie Draht mit einer Zinnbeschichtung

Families Citing this family (21)

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Publication number Priority date Publication date Assignee Title
DE19752329A1 (de) * 1997-11-26 1999-05-27 Stolberger Metallwerke Gmbh Verfahren zur Herstellung eines metallischen Verbundbands
US6372997B1 (en) * 2000-02-25 2002-04-16 Thermagon, Inc. Multi-layer structure and method for forming a thermal interface with low contact resistance between a microelectronic component package and heat sink
DE10025106A1 (de) * 2000-05-20 2001-11-22 Stolberger Metallwerke Gmbh Elektrisch leitfähiges Metallband und Steckverbinder hieraus
JP3395772B2 (ja) * 2000-11-20 2003-04-14 松下電器産業株式会社 錫−銀合金めっき皮膜の製造方法及び錫−銀合金めっき皮膜及びそれを備えた電子部品用リードフレーム
US20020192492A1 (en) * 2001-05-11 2002-12-19 Abys Joseph Anthony Metal article coated with near-surface doped tin or tin alloy
IL144160A0 (en) * 2001-07-05 2002-05-23 Ika Ind Consulting Ltd A lead-free alloy for use as soldering material
US6924044B2 (en) * 2001-08-14 2005-08-02 Snag, Llc Tin-silver coatings
FI114927B (fi) * 2002-11-07 2005-01-31 Outokumpu Oy Menetelmä hyvän kontaktipinnan muodostamiseksi katodin kannatintankoon ja kannatintanko
US7575665B2 (en) * 2005-04-28 2009-08-18 Delphi Technologies, Inc. Method of reducing corrosion of silver containing surfaces
US20080308300A1 (en) * 2007-06-18 2008-12-18 Conti Mark A Method of manufacturing electrically conductive strips
DE102007047007A1 (de) * 2007-10-01 2009-04-09 Tyco Electronics Amp Gmbh Elektrisches Kontaktelement und ein Verfahren zum Herstellen desselben
US20090283305A1 (en) * 2008-05-15 2009-11-19 Interplex Industries, Inc. Tin-silver compound coating on printed circuit boards
DE102010054539A1 (de) * 2010-12-15 2012-06-21 OTB Oberflächentechnik in Berlin GmbH & Co. KG Verfahren zur Herstellung eines Werkstücks aus Kupfer oder einer Kupferlegierung mit einer Beschichtung
JP5387742B2 (ja) 2012-04-06 2014-01-15 株式会社オートネットワーク技術研究所 めっき部材、コネクタ用めっき端子、めっき部材の製造方法、及びコネクタ用めっき端子の製造方法
CN105358741B (zh) * 2013-06-10 2018-04-20 东方镀金株式会社 镀敷叠层体的制造方法及镀敷叠层体
RU2598729C2 (ru) * 2014-09-08 2016-09-27 федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" Способ получения покрытия для электрического контакта
DE102018208116A1 (de) * 2018-05-23 2019-11-28 Aurubis Stolberg Gmbh & Co. Kg Kupferband zur Herstellung von elektrischen Kontakten und Verfahren zur Herstellung eines Kupferbandes und Steckverbinder
CN110773719A (zh) * 2019-10-18 2020-02-11 郑州机械研究所有限公司 一种银铜复合带制备方法
DE102020006059A1 (de) 2020-10-05 2022-04-07 Wieland-Werke Aktiengesellschaft Elektrisch leitendes Material mit Beschichtung
CN114540606B (zh) * 2022-03-09 2023-08-11 西部金属材料股份有限公司 一种高硬度钛合金薄板、箔材的制备方法
JP7213390B1 (ja) * 2022-10-24 2023-01-26 松田産業株式会社 銀めっき皮膜及び該銀めっき皮膜を備えた電気接点

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US5390080A (en) * 1993-05-03 1995-02-14 Motorola Tin-zinc solder connection to a printed circuit board of the like
EP0666342B1 (de) * 1994-02-05 1998-05-06 W.C. Heraeus GmbH Bad zum galvanischen Abscheiden von Silber-Zinn-Legierungen
JP3998731B2 (ja) * 1994-08-10 2007-10-31 三菱伸銅株式会社 通電部材の製造方法
DE19752329A1 (de) * 1997-11-26 1999-05-27 Stolberger Metallwerke Gmbh Verfahren zur Herstellung eines metallischen Verbundbands

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012017520A1 (de) * 2012-09-05 2014-03-06 Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg Verfahren zur Zinnbeschichtung eines metallischen Substrats,Verfahren zur Härtung einer Zinnschicht, sowie Draht mit einer Zinnbeschichtung
US9592533B2 (en) 2012-09-05 2017-03-14 Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg Process for tin coating a metallic substrate, process for hardening a tin layer and wire having a tin coating

Also Published As

Publication number Publication date
EP0919644A1 (de) 1999-06-02
DK0919644T3 (da) 2002-06-10
PT919644E (pt) 2002-07-31
JPH11222659A (ja) 1999-08-17
US6495001B2 (en) 2002-12-17
US20010004048A1 (en) 2001-06-21
DE19752329A1 (de) 1999-05-27
KR19990045402A (ko) 1999-06-25
ES2172851T3 (es) 2002-10-01
DE59803128D1 (de) 2002-03-28
ATE213508T1 (de) 2002-03-15
US6207035B1 (en) 2001-03-27

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