DE2101049A1 - Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall - Google Patents

Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall

Info

Publication number
DE2101049A1
DE2101049A1 DE19712101049 DE2101049A DE2101049A1 DE 2101049 A1 DE2101049 A1 DE 2101049A1 DE 19712101049 DE19712101049 DE 19712101049 DE 2101049 A DE2101049 A DE 2101049A DE 2101049 A1 DE2101049 A1 DE 2101049A1
Authority
DE
Germany
Prior art keywords
film
layer
silver
vpa
acid
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.)
Pending
Application number
DE19712101049
Other languages
German (de)
English (en)
Inventor
A Politycki
W Stoeger
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Priority to DE19712101049 priority Critical patent/DE2101049A1/de
Priority to DE19712104058 priority patent/DE2104058B2/de
Priority to US3767538D priority patent/US3767538A/en
Priority to JP548572A priority patent/JPS521418B1/ja
Publication of DE2101049A1 publication Critical patent/DE2101049A1/de
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/38Improvement of the adhesion between the insulating substrate and the metal
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/2006Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
    • C23C18/2013Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by mechanical pretreatment, e.g. grinding, sanding
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/2006Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
    • C23C18/2026Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by radiant energy
    • C23C18/2033Heat
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/2006Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
    • C23C18/2046Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by chemical pretreatment
    • C23C18/2073Multistep pretreatment
    • C23C18/208Multistep pretreatment with use of metal first
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/2006Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
    • C23C18/2046Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by chemical pretreatment
    • C23C18/2073Multistep pretreatment
    • C23C18/2086Multistep pretreatment with use of organic or inorganic compounds other than metals, first
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/22Roughening, e.g. by etching
    • C23C18/24Roughening, e.g. by etching using acid aqueous solutions
    • 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18Pretreatment of the material to be coated
    • C23C18/20Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/28Sensitising or activating
    • C23C18/30Activating or accelerating or sensitising with palladium or other noble metal
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54Electroplating of non-metallic surfaces
    • C25D5/56Electroplating of non-metallic surfaces of plastics
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S205/00Electrolysis: processes, compositions used therein, and methods of preparing the compositions
    • Y10S205/917Treatment of workpiece between coating steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Chemically Coating (AREA)
DE19712101049 1971-01-11 1971-01-11 Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall Pending DE2101049A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19712101049 DE2101049A1 (de) 1971-01-11 1971-01-11 Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall
DE19712104058 DE2104058B2 (de) 1971-01-11 1971-01-28 Verfahren zur vorzugsweise beidseitigen beschichtung von polyterphthalsaeureester- oder polyimidfolien mit einer aetzfaehigen metallschicht
US3767538D US3767538A (en) 1971-01-11 1972-01-06 Method of coating plastic films with metal
JP548572A JPS521418B1 (enExample) 1971-01-11 1972-01-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712101049 DE2101049A1 (de) 1971-01-11 1971-01-11 Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall
DE19712104058 DE2104058B2 (de) 1971-01-11 1971-01-28 Verfahren zur vorzugsweise beidseitigen beschichtung von polyterphthalsaeureester- oder polyimidfolien mit einer aetzfaehigen metallschicht

Publications (1)

Publication Number Publication Date
DE2101049A1 true DE2101049A1 (de) 1972-08-03

Family

ID=25760499

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19712101049 Pending DE2101049A1 (de) 1971-01-11 1971-01-11 Verfahren zur vorzugsweise beidseitigen Beschichtung von Kunststoffolien mit .Metall
DE19712104058 Ceased DE2104058B2 (de) 1971-01-11 1971-01-28 Verfahren zur vorzugsweise beidseitigen beschichtung von polyterphthalsaeureester- oder polyimidfolien mit einer aetzfaehigen metallschicht

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19712104058 Ceased DE2104058B2 (de) 1971-01-11 1971-01-28 Verfahren zur vorzugsweise beidseitigen beschichtung von polyterphthalsaeureester- oder polyimidfolien mit einer aetzfaehigen metallschicht

Country Status (3)

Country Link
US (1) US3767538A (enExample)
JP (1) JPS521418B1 (enExample)
DE (2) DE2101049A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3328339A1 (de) * 1983-08-05 1985-02-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur metallisierung einer kunststoffoberflaeche
EP0350206A3 (en) * 1988-06-30 1990-02-07 Hoechst Celanese Corporation Process for preparing conductive plastic articles
EP0600787A1 (fr) * 1992-12-04 1994-06-08 Thomson-Csf Procédé pour la métallisation de surface de pièces en matériau composite à matrice organique, et pièces à usage électronique ainsi obtenues

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792310A (fr) * 1971-12-08 1973-06-05 Kalle Ag Procede pour le depot de couches de cuivre sur des pieces moulees en polyimides
NL176479C (nl) * 1971-12-08 1985-04-16 Hoechst Ag Werkwijze voor het bekleden van kunststofvoorwerpen met koper.
US3937857A (en) * 1974-07-22 1976-02-10 Amp Incorporated Catalyst for electroless deposition of metals
US3954570A (en) * 1974-11-11 1976-05-04 Amp Incorporated Sensitized polyimides and circuit elements thereof
CA1120420A (en) * 1976-10-26 1982-03-23 Daniel Luch Process for providing a polymer-electroplate bond of improved strength and stability
US4241105A (en) * 1979-12-17 1980-12-23 Western Electric Company, Inc. Method of plating the surface of a substrate
JPS6036471B2 (ja) * 1980-04-30 1985-08-20 ポリプラスチツクス株式会社 ポリアセタ−ル樹脂の表面処理法
JPS59108043A (ja) * 1982-12-14 1984-06-22 Nippon Sanmou Senshoku Kk 導電性高分子材料及びその製法
FR2544340A1 (fr) * 1983-04-15 1984-10-19 Rhone Poulenc Rech Procede de metallisation de films souples electriquement isolants en matiere plastique thermostable et articles obtenus
FR2544341A1 (fr) * 1983-04-15 1984-10-19 Rhone Poulenc Rech Procede de metallisation de films souples electriquement isolants et articles obtenus
US5047114A (en) * 1984-11-02 1991-09-10 Amp-Akzo Corporation Process for the production of metal clad thermoplastic base materials and printed circuits on thermoplastic base materials
US4552626A (en) * 1984-11-19 1985-11-12 Michael Landney, Jr. Metal plating of polyamide thermoplastics
EP0199132B1 (de) * 1985-04-13 1990-11-07 Licentia Patent-Verwaltungs-GmbH Verfahren zur nasschemischen Herstellung einer Metallschicht
DE3518766A1 (de) * 1985-05-24 1986-11-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur metallisierung eines substrates
US4725504A (en) * 1987-02-24 1988-02-16 Polyonics Corporation Metal coated laminate products made from textured polyimide film
US4894124A (en) * 1988-02-16 1990-01-16 Polyonics Corporation Thermally stable dual metal coated laminate products made from textured polyimide film
US4832799A (en) * 1987-02-24 1989-05-23 Polyonics Corporation Process for coating at least one surface of a polyimide sheet with copper
US4992144A (en) * 1987-02-24 1991-02-12 Polyonics Corporation Thermally stable dual metal coated laminate products made from polyimide film
US4806395A (en) * 1987-02-24 1989-02-21 Polyonics Corporation Textured polyimide film
IL89670A (en) * 1988-03-22 1992-06-21 Raychem Corp Articles having permanent indicia thereon and their production
US5264248A (en) * 1992-08-03 1993-11-23 General Electric Company Adhesion of metal coatings of polypyromellitimides
US5716410A (en) * 1993-04-30 1998-02-10 Scimed Life Systems, Inc. Temporary stent and method of use
US5558759A (en) * 1994-07-26 1996-09-24 Sargent Manufacturing Company Metal finishing process
JPH0948864A (ja) * 1995-08-03 1997-02-18 Kanegafuchi Chem Ind Co Ltd ポリイミドフィルムの接着性改善方法及び接着性を改善したポリイミドフィルム
US6258239B1 (en) * 1998-12-14 2001-07-10 Ballard Power Systems Inc. Process for the manufacture of an electrode for a solid polymer fuel cell
DE10007435A1 (de) * 2000-02-18 2001-08-23 Enthone Omi Deutschland Gmbh Verfahren zum Galvanisieren eines mit einem elektrisch leitenden Polymer beschichteten Werkstücks
JP4532713B2 (ja) * 2000-10-11 2010-08-25 東洋鋼鈑株式会社 多層金属積層フィルム及びその製造方法
EP1433521A4 (en) * 2001-09-26 2006-04-12 Toyo Kohan Co Ltd GAS SEPARATION UNIT AND METHOD FOR MANUFACTURING THE SAME
DE10259187B4 (de) * 2002-12-18 2008-06-19 Enthone Inc., West Haven Metallisierung von Kunststoffsubstraten und Lösung zum Beizen und Aktivieren
US20040264139A1 (en) * 2003-06-24 2004-12-30 Nokia Corporation Process for manufacturing a cover
US20050124976A1 (en) * 2003-12-04 2005-06-09 Devens Douglas A.Jr. Medical devices
EP1584646B1 (en) * 2004-04-09 2007-06-06 Mitsubishi Gas Chemical Company, Inc. Process for producing hard-coated optical materials
US10076032B2 (en) 2014-03-20 2018-09-11 Sumitomo Electric Industries, Ltd. Substrate for printed circuit board, printed circuit board, and method for producing substrate for printed circuit board
US10237976B2 (en) 2014-03-27 2019-03-19 Sumitomo Electric Industries, Ltd. Substrate for printed circuit board, printed circuit board, and method for producing substrate for printed circuit board
JP5770917B1 (ja) * 2014-04-04 2015-08-26 キヤノン・コンポーネンツ株式会社 めっき皮膜付物品の製造方法
WO2016117575A1 (ja) 2015-01-22 2016-07-28 住友電気工業株式会社 プリント配線板用基材、プリント配線板及びプリント配線板の製造方法
JP7228468B2 (ja) * 2019-05-28 2023-02-24 上村工業株式会社 プリント配線基板の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1905097A1 (de) * 1969-02-01 1970-08-06 Dynamit Nobel Ag Verfahren zur Metallisierung von Kunststoffen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3328339A1 (de) * 1983-08-05 1985-02-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur metallisierung einer kunststoffoberflaeche
EP0350206A3 (en) * 1988-06-30 1990-02-07 Hoechst Celanese Corporation Process for preparing conductive plastic articles
EP0600787A1 (fr) * 1992-12-04 1994-06-08 Thomson-Csf Procédé pour la métallisation de surface de pièces en matériau composite à matrice organique, et pièces à usage électronique ainsi obtenues
FR2698886A1 (fr) * 1992-12-04 1994-06-10 Thomson Csf Procédé pour la métallisation de surface de pièces en matériau composite à matrice organique et pièces à usage électronique ainsi obtenues.

Also Published As

Publication number Publication date
DE2104058A1 (de) 1972-08-17
JPS521418B1 (enExample) 1977-01-14
DE2104058B2 (de) 1976-08-05
US3767538A (en) 1973-10-23

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