GB1398161A - Deposition of metal on a polymeric material - Google Patents
Deposition of metal on a polymeric materialInfo
- Publication number
- GB1398161A GB1398161A GB2755872A GB2755872A GB1398161A GB 1398161 A GB1398161 A GB 1398161A GB 2755872 A GB2755872 A GB 2755872A GB 2755872 A GB2755872 A GB 2755872A GB 1398161 A GB1398161 A GB 1398161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- metal
- immersed
- electroless
- healing
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/91—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
- G03C1/915—Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means using mechanical or physical means therefor, e.g. corona
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
- C23C18/2046—Pretreatment 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
- C23C18/2073—Multistep pretreatment
- C23C18/2086—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/22—Roughening, e.g. by etching
- C23C18/24—Roughening, e.g. by etching using acid aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/285—Sensitising or activating with tin based compound or composition
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C1/725—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing inorganic compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/58—Processes for obtaining metallic images by vapour deposition or physical development
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/11—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
-
- 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
- H05K3/18—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 using precipitation techniques to apply the conductive material
- H05K3/181—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 using precipitation techniques to apply the conductive material by electroless 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
- 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
- H05K3/18—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 using precipitation techniques to apply the conductive material
- H05K3/181—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 using precipitation techniques to apply the conductive material by electroless plating
- H05K3/182—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 using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method
- H05K3/185—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 using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method by making a catalytic pattern by photo-imaging
-
- 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
- H05K3/381—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the substrate
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C18/00—Chemical 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
- C23C18/16—Chemical 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
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1653—Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
-
- 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
- H05K2203/0779—Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved
- H05K2203/0783—Using solvent, e.g. for cleaning; Regulating solvent content of pastes or coatings for adjusting the viscosity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemically Coating (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
1398161 Electroless plating of plastics WESTERN ELECTRIC CO Inc 13 June 1972 [14 June 1971] 27558/72 Heading C7F Metal is deposited on a polymer by roughening the surface of the polymer, exposing the roughened surface to a sensitizer, activating the sensitized surface, healing the activated surface with a vapour of a healing agent and exposing the healed surface to an electroless bath to electrolessly deposit the metal upon the healed surface. The polymer may be a polyester, a polymide or a methylmethacrylate polymer. The roughening may be carried out by etching or mechanically. Examples of suitable etchants are given. Preferred healing agents are acetone for polyesters, polyimides, and methylene chloride for polymethylmethacrylate. In a typical Example a polyethylene terephthalate film is chemically roughened by emulsion in concentrated sulphuric acid, rinsed, immersed in an aqueous positive photo-conductor solution comprising 1% SnCl 4 À5H 2 O and 0.5% SnCl 2 À5H 2 O, rinsed, exposed through a quartz mask to ultraviolet radiation, immersed in an aqueous solution comprising 0.5g/PdCl 2 /litre of solution forming reduced metal, i.e. Pd. The Pd deposited film is then exposed to the vapour of refluxing acetone and then immersed in an electroless copper plating bath to form an electroless copper deposit on the surface of the film.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15279371A | 1971-06-14 | 1971-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1398161A true GB1398161A (en) | 1975-06-18 |
Family
ID=22544469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2755872A Expired GB1398161A (en) | 1971-06-14 | 1972-06-13 | Deposition of metal on a polymeric material |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE784791A (en) |
CA (1) | CA954391A (en) |
DE (1) | DE2227925A1 (en) |
FR (1) | FR2141866A1 (en) |
GB (1) | GB1398161A (en) |
IT (1) | IT959211B (en) |
NL (1) | NL7208065A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066330A2 (en) * | 1981-05-29 | 1982-12-08 | Koninklijke Philips Electronics N.V. | Method of producing printed circuit boards |
DE3149919A1 (en) * | 1981-12-11 | 1983-06-23 | Schering Ag, 1000 Berlin Und 4619 Bergkamen | METHOD FOR ADHESIVELY METALLIZING POLYIMIDE |
EP0162230A2 (en) * | 1984-03-26 | 1985-11-27 | Amoco Corporation | Method of restoring the surface of a thermoplastic substrate |
EP0281312A2 (en) * | 1987-02-24 | 1988-09-07 | Polyonics Corporation | Textured polyimide film |
CN115057961A (en) * | 2022-01-04 | 2022-09-16 | 浙江新力新材料股份有限公司 | Hyperbranched polymer and preparation method and application thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3243190A1 (en) * | 1982-11-23 | 1984-05-24 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING METALIZED TEXTILE AREAS |
DE3328765A1 (en) * | 1983-08-05 | 1985-02-14 | Schering AG, 1000 Berlin und 4709 Bergkamen | SOLUTION FOR PRE-TREATING POLYIMIDE |
EP0216513A3 (en) * | 1985-08-22 | 1987-10-21 | Amoco Corporation | Treatment of drilled copper-clad thermoplastic laminates |
-
1971
- 1971-12-29 CA CA131,265A patent/CA954391A/en not_active Expired
-
1972
- 1972-06-08 DE DE19722227925 patent/DE2227925A1/en active Pending
- 1972-06-13 GB GB2755872A patent/GB1398161A/en not_active Expired
- 1972-06-13 NL NL7208065A patent/NL7208065A/xx unknown
- 1972-06-13 FR FR7221211A patent/FR2141866A1/fr not_active Withdrawn
- 1972-06-13 BE BE784791A patent/BE784791A/en unknown
- 1972-06-13 IT IT6890572A patent/IT959211B/en active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066330A2 (en) * | 1981-05-29 | 1982-12-08 | Koninklijke Philips Electronics N.V. | Method of producing printed circuit boards |
EP0066330A3 (en) * | 1981-05-29 | 1983-01-05 | N.V. Philips' Gloeilampenfabrieken | Method of producing printed circuit boards and products thus obtained |
DE3149919A1 (en) * | 1981-12-11 | 1983-06-23 | Schering Ag, 1000 Berlin Und 4619 Bergkamen | METHOD FOR ADHESIVELY METALLIZING POLYIMIDE |
EP0162230A2 (en) * | 1984-03-26 | 1985-11-27 | Amoco Corporation | Method of restoring the surface of a thermoplastic substrate |
EP0162230A3 (en) * | 1984-03-26 | 1986-12-10 | Amoco Corporation | Method of restoring the surface of a thermoplastic substrate |
EP0281312A2 (en) * | 1987-02-24 | 1988-09-07 | Polyonics Corporation | Textured polyimide film |
EP0281312A3 (en) * | 1987-02-24 | 1988-09-28 | Polyonics Corporation | Textured polyimide film |
CN115057961A (en) * | 2022-01-04 | 2022-09-16 | 浙江新力新材料股份有限公司 | Hyperbranched polymer and preparation method and application thereof |
CN115057961B (en) * | 2022-01-04 | 2024-01-26 | 浙江新力新材料股份有限公司 | Hyperbranched polymer and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2227925A1 (en) | 1972-12-21 |
BE784791A (en) | 1972-10-02 |
IT959211B (en) | 1973-11-10 |
CA954391A (en) | 1974-09-10 |
NL7208065A (en) | 1972-12-18 |
FR2141866A1 (en) | 1973-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4440801A (en) | Method for depositing a metal layer on polyesters | |
US4328298A (en) | Process for manufacturing lithography masks | |
US3672925A (en) | Method of preparing a substrate for depositing a metal on selected portions thereof | |
GB1266193A (en) | ||
GB1497620A (en) | Formation of metal layers on polymers | |
US3481777A (en) | Electroless coating method for making printed circuits | |
GB1398161A (en) | Deposition of metal on a polymeric material | |
US4042730A (en) | Process for electroless plating using separate sensitization and activation steps | |
CA1047331A (en) | Colloid sensitization followed by acid rinse for electroless plating of nonmetal | |
CA1069367A (en) | Plating solution containing an inorganic redox couple and a complexing agent for cuprous ions | |
US3791340A (en) | Method of depositing a metal pattern on a surface | |
US3379556A (en) | Electroless plating system | |
EP0312551A1 (en) | Additive method for manufacturing printed circuit boards using aqueous alkaline developable and strippable photoresists | |
US4167601A (en) | Method of depositing a stress-free electroless copper deposit | |
US3615471A (en) | Method for making optical masks | |
CA1299935C (en) | Process for adhesive metallization of plastics | |
US4089686A (en) | Method of depositing a metal on a surface | |
US4001470A (en) | Process and bath for the metallization of synthetic-resin | |
US3666527A (en) | Method of electroless deposition of metals with improved sensitizer | |
US3878007A (en) | Method of depositing a pattern of metal plated areas on an insulating substrate | |
GB1229935A (en) | ||
GB918220A (en) | Method of chemically plating a dielectric article | |
JP3069942B2 (en) | Electric circuit board and manufacturing method thereof | |
USRE28042E (en) | Method of making additive printed circuit boards and product thereof | |
US4228213A (en) | Method of depositing a stress-free electroless copper deposit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |