US20200399482A1 - Catalyst Ink for Three-Dimensional Conductive Constructs - Google Patents
Catalyst Ink for Three-Dimensional Conductive Constructs Download PDFInfo
- Publication number
- US20200399482A1 US20200399482A1 US16/823,383 US202016823383A US2020399482A1 US 20200399482 A1 US20200399482 A1 US 20200399482A1 US 202016823383 A US202016823383 A US 202016823383A US 2020399482 A1 US2020399482 A1 US 2020399482A1
- Authority
- US
- United States
- Prior art keywords
- construct
- substrate
- catalyst ink
- palladium nanoparticles
- nanoparticles
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/0545—Dispersions or suspensions of nanosized particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0466—Alloys based on noble metals
-
- 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
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1607—Process or apparatus coating on selected surface areas by direct patterning
- C23C18/1608—Process or apparatus coating on selected surface areas by direct patterning from pretreatment step, i.e. selective pre-treatment
-
- 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
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1607—Process or apparatus coating on selected surface areas by direct patterning
- C23C18/161—Process or apparatus coating on selected surface areas by direct patterning from plating step, e.g. inkjet
-
- 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
- C23C18/1635—Composition of the substrate
- C23C18/1637—Composition of the substrate metallic 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
- C23C18/1651—Two or more layers only obtained by electroless plating
-
- 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
- C23C18/1655—Process features
- C23C18/1662—Use of incorporated material in the solution or dispersion, e.g. particles, whiskers, wires
-
- 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
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1827—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment only one step pretreatment
- C23C18/1831—Use of metal, e.g. activation, sensitisation with noble metals
-
- 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
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1872—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment
- C23C18/1875—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment only one step pretreatment
- C23C18/1879—Use of metal, e.g. activation, sensitisation with noble metals
-
- 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
- C23C18/2053—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 only one step pretreatment
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- a catalyst ink may comprise a colloidal solution of a solvent and palladium nanoparticles.
- the colloidal solution may comprise a binder.
- the catalyst ink may be used to form a three-dimensional construct.
- a method of forming a three-dimensional construct may comprise preparing a catalyst ink by forming a colloidal solution comprising catalytic nanoparticles and a solvent.
- the catalytic ink may be deposited onto a surface of a substrate.
- the ink may be deposited, for example, using aerosol jet printing.
- the substrate may be subjected to electro-less plating to plate the deposited nanoparticles with metal. One or more of these steps may be repeated until a three-dimensional construct having a desired size and/or shape is formed.
- FIG. 1 shows an example aerosol jet system used to apply nanoparticles in accordance with one aspect of the disclosure.
- FIG. 2 shows a flow chart of a method of preparing a 3-D construct in accordance with one aspect of the disclosure.
- FIG. 3 shows an example of palladium traces before addition of copper with 1% palladium in accordance with one aspect of the disclosure.
- FIG. 4 shows an example of palladium traces before addition of copper with 0.5% palladium in accordance with one aspect of the disclosure.
- FIG. 5 shows an example of a copper construct in accordance with one aspect of the disclosure.
- FIG. 6 shows an example of a copper construct in accordance with another aspect of the disclosure.
- the present disclosure is directed to the preparation of arbitrary three-dimensional (3D) geometric conductive constructs.
- arbitrary is intended to convey that the constructs may be of a variety of shapes and sizes.
- the constructs may be used to form microelectronic circuitry, which can be used for flexible sensors, transistors, connective wiring, etc.
- a process for preparing arbitrary 3D shapes may include additive or subtractive manufacturing techniques.
- the layers in the construct may be partly conductive and partly non-conductive.
- a non-reactive ink may be utilized to build one or more portions of the 3D construct to form a non-conductive layer and then a catalyst ink may be used to build one or more portions of the 3D construct.
- a catalyst ink may be used to build one or more portions of the 3D construct.
- the process of making the 3D conductive constructs may use a colloidal solution containing a catalytic nanoparticle material, for example palladium.
- the colloidal solution may be an aerosol-based solution and may be referred to as a catalyst ink.
- the catalyst ink may be applied onto a substrate using aerosol jet printing.
- “Aerosol jet printing” and an “aerosol jet printing process” refer to printing processes whereby liquid is projected from a nozzle directly onto a substrate to form a desired pattern.
- the catalytic nanoparticle material may be disposed in minute amounts on the surface.
- the catalytic nanoparticle material, and/or a layer of such materials, may itself be nonconductive.
- the catalytic nanoparticle material may facilitate subsequent deposition of a metal onto the surface, according to the pattern of the catalytic nanoparticle material previously deposited, so as to form conductive layers in the 3D construct.
- the catalytic nanoparticle material coated substrate may be immersed into an electro-less plating bath for deposition of conductive material such as copper onto the nanoparticles.
- the above steps may be repeated to create the desired 3D conductive constructs.
- FIG. 2 shows a flow diagram that may be used to apply conductive layers to form a 3D construct.
- nanoparticles and solvent may be combined and subjected to sonication to form a colloidal solution.
- the colloidal solution may be added to an aerosol jet printer.
- the solution may be applied to a substrate to form a layer of nanoparticles.
- the coated substrate may be plated with a conductive metal.
- a determination may be made with regard to whether the 3D construct is complete. If not complete, steps 206 - 210 may be repeated until the 3D construct is complete.
- the catalyst ink may contain catalytic nanoparticles, solvents, and optionally a binder.
- the nanoparticles may be any suitable palladium nanoparticles that one can use to build a 3D geometric conductive construct.
- Active palladium is catalytic for subsequent addition of a metal onto the palladium and strongly attaches to the underlying substrate.
- Palladium may be used, in particular, for copper plating. Hence, after application of the palladium particles, for example, the construct may be immersed in an electro-less plating bath for application of the copper.
- the catalytic nanoparticles may be of any suitable size for deposition and buildup of the 3D construct.
- the average particle size may be from 15 to 400 nm in size.
- the average particle sizes may be a consistent size or may be random within the range or may have groups of larger and smaller particles within the range, for example 15 to 200 nm, 15 to 100 nm, 15 to 50 nm, 100 to 400 nm, 200 to 400 nm, 300 to 400 nm, 100 to 300 nm or 15 to 250 nm or any combination thereof.
- the colloidal solution may contain a suitable concentration of catalytic nanoparticles to provide the desired layer of particles.
- the concentration of catalytic nanoparticles in the solution may be limited so as to avoid clogging the nozzle of the applicator.
- the colloidal solution may contain from 0.1 to 2.2 wt. % nanoparticles, for example, from 0.1 to 1.5 wt. %, 0.1 to 1.0 wt %, 0.1 to 0.5 wt. %, 0.5 to 2.2 wt. %, 1 to 2.2 wt %, 1.5 to 2.2 wt. %, or 0.5 to 1.5 wt. %.
- the concentration may be any suitable concentration to obtain the desired layer thickness on the substrate.
- the solvent may be any suitable solvent to provide a colloidal solution of the catalytic nanoparticles and suitable for spraying to build the 3D construct.
- Suitable solvents include, but are not limited to, toluene, dimethylformamide, tetrahydrofuran, xylenes, and combinations thereof.
- a binder may be utilized to increase the substrate/catalyst interaction. With certain substrates, no binder is utilized. The selection of a binder and type of binder may depend, at least in part, on the characteristics of the substrate, the solvent, and the catalytic nanoparticles. Suitable binders for palladium nanoparticles include, but are not limited to, poly-vinyl alcohol and carboxy-methyl cellulose or combinations thereof. The type and amount of binder is dependent on the substrate but generally does not exceed more than 1% of total solution.
- processing aids may be included so long as they do not interfere with the desired 3-D construct.
- the colloidal solution components may be mixed together.
- the resulting solution may be sonicated to reduce aggregation of the nanoparticles and disperse the nanoparticles in solution. Such sonication may occur just prior to dispersion to ensure the nanoparticles have not aggregated and/or settled.
- the colloidal solution may be sonicated for up to 20 minutes, typically 10 to 15 minutes.
- the resulting solution may have a viscosity of less than 1000 cP measured at room temperature to allow suitable flow.
- an atomizer 102 atomizes a liquid 104 (e.g., an ink such as a colloidal solution).
- the atomized fluid 106 enters a virtual impactor 110 to remove excess gas, and then is aerodynamically focused using a flow guidance deposition head 114 , which creates an annular flow of sheath gas, indicated by arrow 116 , to collimate the atomized fluid 118 .
- the co-axial flow exits the flow guidance head 114 through a nozzle 120 directed at the substrate 130 and focuses a stream 122 of the atomized material.
- Patterning may be accomplished by attaching the substrate to a computer-controlled platen, or by translating the flow guidance head while the substrate position remains fixed.
- An example of an aerosol jet printer suitable for use includes, but is not limited to, an M3D Aerosol Jet Deposition System available from Optomec, Inc., of Albuquerque, N.M.
- the system may use a single nozzle or a plurality of nozzles (e.g. 1, 2, 3, 4, 5, or more nozzles.)
- the nozzles may be attached to a multiplex or other system to allow non-conformal printing—e.g. control of the nozzle(s) in a 3-dimensional environment.
- the colloidal solution may be loaded into a pneumatic atomizer chamber of the aerosol jet printer.
- a liquid stream of the colloidal solution may be atomized using a high-velocity atomization gas stream. This high-velocity gas shears the liquid stream into droplets thus forming an aerosol stream.
- the droplets may be of any suitable size for application to the substrate or construct. Typically the droplets range from 1 to 5 ⁇ m, for example, with an average size of 2.5 ⁇ m.
- Suitable atomization gases may be inert gases such as nitrogen or argon or compressed air. Nitrogen may be preferred over argon as it is less expensive.
- Excess atomization gas may be removed from the aerosol stream by a virtual impactor which then concentrates the aerosol stream and channels the aerosol stream through a deposition head.
- a sheath gas stream surrounds the aerosol stream and focuses the stream onto the substrate forming a layer of nanoparticles on the substrate or on the construct already present.
- the process of applying the nanoparticles may occur at a temperature of from 0 to 60 degrees Celsius to the print bed.
- the print thickness of each layer may be 100 nanometers to tens of microns. A typical range is from 0.5 to 1.5 microns.
- the substrates may be standard 2D substrates or additively manufactured 3D constructs. More particularly, the substrates may be flat sheets or they may be 3D structures that were made using additive manufacturing from a 3D printer. Substrates may be made of glass, plastics, ceramics, and metals. The substrate may be any substrate that the colloidal solution gets printed on. A plate of ceramic may be a substrate or a 3D printed plastic pyramid may be a substrate. The substrate becomes part of the product.
- FIG. 3 shows a substrate 300 coated utilizing 1% palladium solution to form structure 302 .
- FIG. 4 shows a substrate 400 coated utilizing 0.5% palladium solution to form structure 402 .
- the palladium coated substrate may be metallized by immersing in an electro-less plating bath.
- substrate having a layer of palladium nanoparticles may be immersed in a copper bath whereby the copper plates onto the palladium.
- the solvent may be left to evaporate, for example, the substrate may sit in room temperature for 2 hours, or placed in an oven, for example, at 50 to 60 degrees Celsius for 30 minutes.
- Subsequent process steps may include washing the copper plating. Washing may be with water, an acid solution such as sulfuric acid, and/or anti-tarnish. As a non-limiting exemplification, the plated sample may be washed with deionized (DI) water for two minutes, washed with 10% sulfuric acid for 1 minutes, 45 seconds, rinsed with DI water again for 1 minute, then washed with anti-tarnish solution for 1 minute, and lastly washed with DI water for one minute.
- DI deionized
- FIG. 5 shows substrate 400 where the palladium has been coated in copper to form a conductive, flexible wire 502 which may be used in microelectronic circuitry
- FIG. 6 shows another substrate 600 coated with palladium to form structure 602 which may be used in microelectronic circuitry.
- the resulting metal 3D structure may have a conductivity on par with bulk metal counterparts that require sintering (e.g. silver constructs).
- an aerosol system may use a sheath of gas to channel the colloidal solution through the print head.
- the sheath gas allows the colloidal solution to channel through the print head without touching the nozzle walls. This creates a clog resistant nozzle and a tightly focused, high density stream onto the substrate.
- the aerosol system can produce a much higher print resolution than that of standard ink jet systems.
- the aerosol system is also more lenient than ink jet with ink viscosity and print head standoff.
- the variable print head standoff offered by the aerosol jet system allows nanoparticles to be printed on variable surface features that would simply not be possible with an ink jet printer. This allows for printing on 3-dimensional surfaces, which ink jet systems cannot do.
- Additional aspects include a catalytic ink comprising palladium, a solvent selected from toluene, dimethylformamide, tetrahydrofuran, xylenes, and combinations thereof, and optionally a binder selected from poly-vinyl alcohol and carboxy-methyl cellulose.
- the palladium construct showed improvements over the silver constructs.
- Three passes with the Optomec M3D Aerosol Jet Deposition System, Inc. using silver ink provided resistances of 14.5 to 27 ohms, after sintering the silver for 5 hours at 205 C°.
- Three passes with the palladium ink followed by copper plating provided a resistance of 3.26 to 5.75 ohms, with no sintering at high temperatures being required.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemically Coating (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
- This application is a continuation of U.S. patent application Ser. No. 16/447,277, filed Jun. 20, 2019, now allowed, the disclosure of which is herein incorporated by reference in its entirety.
- This invention was made with Government support under Contract No. N00178-04-D-4119-FC2846 awarded by the U.S. Department of Defense. The Government has certain rights in this invention.
- To date there has not been an effective deposition process for metallic compounds that provides conductivity on par with bulk metal in arbitrary three-dimensional geometries. In particular, current ink or aerosol based precursors used in such additive manufacturing processes do not provide the desired conductivity in the product material. Three-dimensional metal shapes printed with current inks only achieve 30% of the conductivity of their bulk material counterparts.
- The following presents a simplified summary in order to provide a basic understanding of the disclosure. The summary is not an extensive overview of the disclosure. It is neither intended to identify key or critical elements nor to delineate the scope of the disclosure. The following summary merely presents some concepts in a simplified form as a prelude to the more detailed description below.
- A catalyst ink may comprise a colloidal solution of a solvent and palladium nanoparticles. The colloidal solution may comprise a binder. The catalyst ink may be used to form a three-dimensional construct. A method of forming a three-dimensional construct may comprise preparing a catalyst ink by forming a colloidal solution comprising catalytic nanoparticles and a solvent. The catalytic ink may be deposited onto a surface of a substrate. The ink may be deposited, for example, using aerosol jet printing. The substrate may be subjected to electro-less plating to plate the deposited nanoparticles with metal. One or more of these steps may be repeated until a three-dimensional construct having a desired size and/or shape is formed.
-
FIG. 1 shows an example aerosol jet system used to apply nanoparticles in accordance with one aspect of the disclosure. -
FIG. 2 shows a flow chart of a method of preparing a 3-D construct in accordance with one aspect of the disclosure. -
FIG. 3 shows an example of palladium traces before addition of copper with 1% palladium in accordance with one aspect of the disclosure. -
FIG. 4 shows an example of palladium traces before addition of copper with 0.5% palladium in accordance with one aspect of the disclosure. -
FIG. 5 shows an example of a copper construct in accordance with one aspect of the disclosure. -
FIG. 6 shows an example of a copper construct in accordance with another aspect of the disclosure. - The present disclosure is directed to the preparation of arbitrary three-dimensional (3D) geometric conductive constructs. The term “arbitrary” is intended to convey that the constructs may be of a variety of shapes and sizes. The constructs may be used to form microelectronic circuitry, which can be used for flexible sensors, transistors, connective wiring, etc.
- A process for preparing arbitrary 3D shapes may include additive or subtractive manufacturing techniques. In addition, the layers in the construct may be partly conductive and partly non-conductive. For example, a non-reactive ink may be utilized to build one or more portions of the 3D construct to form a non-conductive layer and then a catalyst ink may be used to build one or more portions of the 3D construct. Thus the process provides conductive metallic patterns.
- The process of making the 3D conductive constructs may use a colloidal solution containing a catalytic nanoparticle material, for example palladium. The colloidal solution may be an aerosol-based solution and may be referred to as a catalyst ink. The catalyst ink may be applied onto a substrate using aerosol jet printing. “Aerosol jet printing” and an “aerosol jet printing process” refer to printing processes whereby liquid is projected from a nozzle directly onto a substrate to form a desired pattern.
- The catalytic nanoparticle material may be disposed in minute amounts on the surface. The catalytic nanoparticle material, and/or a layer of such materials, may itself be nonconductive. The catalytic nanoparticle material may facilitate subsequent deposition of a metal onto the surface, according to the pattern of the catalytic nanoparticle material previously deposited, so as to form conductive layers in the 3D construct.
- For example, the catalytic nanoparticle material coated substrate may be immersed into an electro-less plating bath for deposition of conductive material such as copper onto the nanoparticles. The above steps may be repeated to create the desired 3D conductive constructs.
- Attention is drawn to
FIG. 2 which shows a flow diagram that may be used to apply conductive layers to form a 3D construct. Instep 202, nanoparticles and solvent may be combined and subjected to sonication to form a colloidal solution. Instep 204, the colloidal solution may be added to an aerosol jet printer. Instep 206, the solution may be applied to a substrate to form a layer of nanoparticles. Instep 208, the coated substrate may be plated with a conductive metal. Instep 210, a determination may be made with regard to whether the 3D construct is complete. If not complete, steps 206-210 may be repeated until the 3D construct is complete. - The catalyst ink (colloidal or aerosol-based solution) may contain catalytic nanoparticles, solvents, and optionally a binder.
- The nanoparticles may be any suitable palladium nanoparticles that one can use to build a 3D geometric conductive construct. Active palladium is catalytic for subsequent addition of a metal onto the palladium and strongly attaches to the underlying substrate. Palladium may be used, in particular, for copper plating. Hence, after application of the palladium particles, for example, the construct may be immersed in an electro-less plating bath for application of the copper.
- The catalytic nanoparticles may be of any suitable size for deposition and buildup of the 3D construct. For example, the average particle size may be from 15 to 400 nm in size. The average particle sizes may be a consistent size or may be random within the range or may have groups of larger and smaller particles within the range, for example 15 to 200 nm, 15 to 100 nm, 15 to 50 nm, 100 to 400 nm, 200 to 400 nm, 300 to 400 nm, 100 to 300 nm or 15 to 250 nm or any combination thereof.
- The colloidal solution may contain a suitable concentration of catalytic nanoparticles to provide the desired layer of particles. The concentration of catalytic nanoparticles in the solution may be limited so as to avoid clogging the nozzle of the applicator. The colloidal solution may contain from 0.1 to 2.2 wt. % nanoparticles, for example, from 0.1 to 1.5 wt. %, 0.1 to 1.0 wt %, 0.1 to 0.5 wt. %, 0.5 to 2.2 wt. %, 1 to 2.2 wt %, 1.5 to 2.2 wt. %, or 0.5 to 1.5 wt. %. The concentration may be any suitable concentration to obtain the desired layer thickness on the substrate.
- The solvent may be any suitable solvent to provide a colloidal solution of the catalytic nanoparticles and suitable for spraying to build the 3D construct. Suitable solvents include, but are not limited to, toluene, dimethylformamide, tetrahydrofuran, xylenes, and combinations thereof.
- A binder may be utilized to increase the substrate/catalyst interaction. With certain substrates, no binder is utilized. The selection of a binder and type of binder may depend, at least in part, on the characteristics of the substrate, the solvent, and the catalytic nanoparticles. Suitable binders for palladium nanoparticles include, but are not limited to, poly-vinyl alcohol and carboxy-methyl cellulose or combinations thereof. The type and amount of binder is dependent on the substrate but generally does not exceed more than 1% of total solution.
- Other processing aids may be included so long as they do not interfere with the desired 3-D construct.
- The colloidal solution components may be mixed together. The resulting solution may be sonicated to reduce aggregation of the nanoparticles and disperse the nanoparticles in solution. Such sonication may occur just prior to dispersion to ensure the nanoparticles have not aggregated and/or settled. The colloidal solution may be sonicated for up to 20 minutes, typically 10 to 15 minutes. The resulting solution may have a viscosity of less than 1000 cP measured at room temperature to allow suitable flow.
- In an
aerosol jet printer 100, illustrated inFIG. 1 , anatomizer 102 atomizes a liquid 104 (e.g., an ink such as a colloidal solution). The atomizedfluid 106 enters a virtual impactor 110 to remove excess gas, and then is aerodynamically focused using a flowguidance deposition head 114, which creates an annular flow of sheath gas, indicated byarrow 116, to collimate the atomizedfluid 118. The co-axial flow exits theflow guidance head 114 through a nozzle 120 directed at thesubstrate 130 and focuses a stream 122 of the atomized material. Patterning may be accomplished by attaching the substrate to a computer-controlled platen, or by translating the flow guidance head while the substrate position remains fixed. An example of an aerosol jet printer suitable for use includes, but is not limited to, an M3D Aerosol Jet Deposition System available from Optomec, Inc., of Albuquerque, N.M. - The system may use a single nozzle or a plurality of nozzles (e.g. 1, 2, 3, 4, 5, or more nozzles.) The nozzles may be attached to a multiplex or other system to allow non-conformal printing—e.g. control of the nozzle(s) in a 3-dimensional environment.
- The colloidal solution may be loaded into a pneumatic atomizer chamber of the aerosol jet printer. A liquid stream of the colloidal solution may be atomized using a high-velocity atomization gas stream. This high-velocity gas shears the liquid stream into droplets thus forming an aerosol stream. The droplets may be of any suitable size for application to the substrate or construct. Typically the droplets range from 1 to 5 μm, for example, with an average size of 2.5 μm. Suitable atomization gases may be inert gases such as nitrogen or argon or compressed air. Nitrogen may be preferred over argon as it is less expensive.
- Excess atomization gas may be removed from the aerosol stream by a virtual impactor which then concentrates the aerosol stream and channels the aerosol stream through a deposition head. A sheath gas stream surrounds the aerosol stream and focuses the stream onto the substrate forming a layer of nanoparticles on the substrate or on the construct already present.
- The process of applying the nanoparticles may occur at a temperature of from 0 to 60 degrees Celsius to the print bed.
- The print thickness of each layer may be 100 nanometers to tens of microns. A typical range is from 0.5 to 1.5 microns.
- The substrates may be standard 2D substrates or additively manufactured 3D constructs. More particularly, the substrates may be flat sheets or they may be 3D structures that were made using additive manufacturing from a 3D printer. Substrates may be made of glass, plastics, ceramics, and metals. The substrate may be any substrate that the colloidal solution gets printed on. A plate of ceramic may be a substrate or a 3D printed plastic pyramid may be a substrate. The substrate becomes part of the product.
- After application of the metal precursor, the substrate may be allowed to dry.
FIG. 3 shows asubstrate 300 coated utilizing 1% palladium solution to formstructure 302.FIG. 4 shows asubstrate 400 coated utilizing 0.5% palladium solution to formstructure 402. These structures may be used in microelectronic circuitry. - The palladium coated substrate may be metallized by immersing in an electro-less plating bath. For example, substrate having a layer of palladium nanoparticles may be immersed in a copper bath whereby the copper plates onto the palladium. The solvent may be left to evaporate, for example, the substrate may sit in room temperature for 2 hours, or placed in an oven, for example, at 50 to 60 degrees Celsius for 30 minutes.
- Subsequent process steps may include washing the copper plating. Washing may be with water, an acid solution such as sulfuric acid, and/or anti-tarnish. As a non-limiting exemplification, the plated sample may be washed with deionized (DI) water for two minutes, washed with 10% sulfuric acid for 1 minutes, 45 seconds, rinsed with DI water again for 1 minute, then washed with anti-tarnish solution for 1 minute, and lastly washed with DI water for one minute.
- The process may be repeated to add additional conductive metal layers to the substrate constructs. The process may also include application of non-catalytic or non-metallic layers.
FIG. 5 showssubstrate 400 where the palladium has been coated in copper to form a conductive,flexible wire 502 which may be used in microelectronic circuitryFIG. 6 shows anothersubstrate 600 coated with palladium to formstructure 602 which may be used in microelectronic circuitry. - The resulting metal 3D structure (construct) may have a conductivity on par with bulk metal counterparts that require sintering (e.g. silver constructs).
- As discussed above, an aerosol system may use a sheath of gas to channel the colloidal solution through the print head. The sheath gas allows the colloidal solution to channel through the print head without touching the nozzle walls. This creates a clog resistant nozzle and a tightly focused, high density stream onto the substrate.
- An advantage of the aerosol system is that it can produce a much higher print resolution than that of standard ink jet systems. The aerosol system is also more lenient than ink jet with ink viscosity and print head standoff. The variable print head standoff offered by the aerosol jet system allows nanoparticles to be printed on variable surface features that would simply not be possible with an ink jet printer. This allows for printing on 3-dimensional surfaces, which ink jet systems cannot do.
- Additional aspects include a catalytic ink comprising palladium, a solvent selected from toluene, dimethylformamide, tetrahydrofuran, xylenes, and combinations thereof, and optionally a binder selected from poly-vinyl alcohol and carboxy-methyl cellulose.
- A copper construct made in accordance with the process of using a palladium ink and an aerosol system as described herein was compared to a silver construct prepared with an industry standard silver ink using the same aerosol system. The palladium construct showed improvements over the silver constructs. Three passes with the Optomec M3D Aerosol Jet Deposition System, Inc. using silver ink provided resistances of 14.5 to 27 ohms, after sintering the silver for 5 hours at 205 C°. Three passes with the palladium ink followed by copper plating provided a resistance of 3.26 to 5.75 ohms, with no sintering at high temperatures being required.
- The invention has been described with respect to specific examples including various aspects of the invention. Those skilled in the art will appreciate that there are numerous variations and permutations of the above described systems and techniques. Thus, the spirit and scope of the invention should be construed broadly as set forth in the appended claims.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/823,383 US10883005B1 (en) | 2019-06-20 | 2020-03-19 | Catalyst ink for three-dimensional conductive constructs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/447,277 US10619059B1 (en) | 2019-06-20 | 2019-06-20 | Catalyst ink for three-dimensional conductive constructs |
US16/823,383 US10883005B1 (en) | 2019-06-20 | 2020-03-19 | Catalyst ink for three-dimensional conductive constructs |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/447,277 Continuation US10619059B1 (en) | 2019-06-20 | 2019-06-20 | Catalyst ink for three-dimensional conductive constructs |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200399482A1 true US20200399482A1 (en) | 2020-12-24 |
US10883005B1 US10883005B1 (en) | 2021-01-05 |
Family
ID=70223468
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/447,277 Active US10619059B1 (en) | 2019-06-20 | 2019-06-20 | Catalyst ink for three-dimensional conductive constructs |
US16/823,383 Active US10883005B1 (en) | 2019-06-20 | 2020-03-19 | Catalyst ink for three-dimensional conductive constructs |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/447,277 Active US10619059B1 (en) | 2019-06-20 | 2019-06-20 | Catalyst ink for three-dimensional conductive constructs |
Country Status (1)
Country | Link |
---|---|
US (2) | US10619059B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10983506B2 (en) * | 2013-10-16 | 2021-04-20 | Proto Labs, Inc. | Methods and software for manufacturing a discrete object from an additively manufactured body of material including a precursor to a discrete object and a reference feature(s) |
US10619059B1 (en) * | 2019-06-20 | 2020-04-14 | Science Applications International Corporation | Catalyst ink for three-dimensional conductive constructs |
WO2020263890A1 (en) * | 2019-06-27 | 2020-12-30 | Proto Labs, Inc. | Methods and software for manufacturing a discrete object from an additively manufactured body of material including a precursor to a discrete object and a reference feature |
CN113213950B (en) * | 2021-05-18 | 2023-02-14 | 中国科学院长春光学精密机械与物理研究所 | Preparation method of ceramic packaging base |
US11892379B2 (en) | 2021-06-29 | 2024-02-06 | Science Applications International Corporation | Thermal and/or optical signature simulating systems and methods of making and using such systems |
CN117655356A (en) * | 2022-08-25 | 2024-03-08 | 上海科技大学 | Be applied to space electric field controlling means of 3D printing |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3011920A (en) * | 1959-06-08 | 1961-12-05 | Shipley Co | Method of electroless deposition on a substrate and catalyst solution therefor |
US5227223A (en) * | 1989-12-21 | 1993-07-13 | Monsanto Company | Fabricating metal articles from printed images |
US6126740A (en) | 1995-09-29 | 2000-10-03 | Midwest Research Institute | Solution synthesis of mixed-metal chalcogenide nanoparticles and spray deposition of precursor films |
US7098163B2 (en) * | 1998-08-27 | 2006-08-29 | Cabot Corporation | Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells |
US6116718A (en) | 1998-09-30 | 2000-09-12 | Xerox Corporation | Print head for use in a ballistic aerosol marking apparatus |
IL140912A (en) * | 2001-01-16 | 2004-12-15 | Yissum Res Dev Co | Forming a conductor circuit on a substrate |
US20050238812A1 (en) * | 2002-06-04 | 2005-10-27 | Bhangale Sunil M | Method for electroless metalisation of polymer substrate |
WO2005065433A2 (en) * | 2003-12-31 | 2005-07-21 | Microfabrica Inc. | Electrochemical fabrication methods incorporating dielectric materials and/or using dielectric substrates |
WO2006076613A2 (en) * | 2005-01-14 | 2006-07-20 | Cabot Corporation | Metal nanoparticle compositions |
WO2006076603A2 (en) * | 2005-01-14 | 2006-07-20 | Cabot Corporation | Printable electrical conductors |
US8383014B2 (en) * | 2010-06-15 | 2013-02-26 | Cabot Corporation | Metal nanoparticle compositions |
US8110254B1 (en) | 2006-09-12 | 2012-02-07 | Sri International | Flexible circuit chemistry |
US7981508B1 (en) | 2006-09-12 | 2011-07-19 | Sri International | Flexible circuits |
US7989029B1 (en) | 2007-06-21 | 2011-08-02 | Sri International | Reduced porosity copper deposition |
US8628818B1 (en) | 2007-06-21 | 2014-01-14 | Sri International | Conductive pattern formation |
TW200918325A (en) * | 2007-08-31 | 2009-05-01 | Optomec Inc | AEROSOL JET® printing system for photovoltaic applications |
US20090239363A1 (en) | 2008-03-24 | 2009-09-24 | Honeywell International, Inc. | Methods for forming doped regions in semiconductor substrates using non-contact printing processes and dopant-comprising inks for forming such doped regions using non-contact printing processes |
TWI433957B (en) * | 2008-09-23 | 2014-04-11 | Univ Nat Defense | Metallization on a surface and in through-holes of a substrate and a catalyst used therein |
US8895874B1 (en) | 2009-03-10 | 2014-11-25 | Averatek Corp. | Indium-less transparent metalized layers |
US7905623B2 (en) | 2009-07-08 | 2011-03-15 | Ming-Nan Chen | Magnetic illumination device for tool |
JP5458758B2 (en) * | 2009-09-11 | 2014-04-02 | 上村工業株式会社 | Catalyst application solution and electroless plating method and direct plating method using the same |
EP2649141A2 (en) | 2010-12-07 | 2013-10-16 | Sun Chemical Corporation | Aerosol jet printable metal conductive inks, glass coated metal conductive inks and uv-curable dielectric inks and methods of preparing and printing the same |
US8591636B2 (en) * | 2010-12-14 | 2013-11-26 | Rohm And Haas Electronics Materials Llc | Plating catalyst and method |
US8568824B2 (en) * | 2011-06-06 | 2013-10-29 | Xerox Corporation | Palladium precursor composition |
TWI499691B (en) * | 2011-08-17 | 2015-09-11 | 羅門哈斯電子材料有限公司 | Stable tin free catalysts for electroless metallization |
SG188694A1 (en) * | 2011-09-30 | 2013-04-30 | Bayer Materialscience Ag | Aqueous ink formulation containing metal-based nanoparticles for usage in micro contact printing |
US8940197B2 (en) * | 2012-02-24 | 2015-01-27 | Xerox Corporation | Processes for producing palladium nanoparticle inks |
JP5456129B1 (en) * | 2012-09-28 | 2014-03-26 | 田中貴金属工業株式会社 | Method for treating substrate carrying catalyst particles for plating treatment |
US10066299B2 (en) * | 2013-02-24 | 2018-09-04 | Rohm And Haas Electronic Materials Llc | Plating catalyst and method |
US20170081766A1 (en) * | 2015-09-21 | 2017-03-23 | National Tsing Hua University | Method for no-silane electroless metal deposition using high adhesive catalyst and product therefrom |
US20170015804A1 (en) * | 2015-07-16 | 2017-01-19 | Dow Global Technologies Llc | Stabilized nanoparticles and dispersions of the stabilized nanoparticles and methods of application |
US20170283629A1 (en) * | 2016-03-29 | 2017-10-05 | University Of North Texas | Metal-based ink for additive manufacturing process |
US10214657B2 (en) * | 2017-03-13 | 2019-02-26 | Eastman Kodak Company | Silver-containing compositions containing cellulosic polymers |
US10494721B1 (en) * | 2017-08-08 | 2019-12-03 | National Technology & Engineering Solutions Of Sandia, Llc | Electroless deposition of metal on 3D-printed polymeric structures |
US10619059B1 (en) * | 2019-06-20 | 2020-04-14 | Science Applications International Corporation | Catalyst ink for three-dimensional conductive constructs |
-
2019
- 2019-06-20 US US16/447,277 patent/US10619059B1/en active Active
-
2020
- 2020-03-19 US US16/823,383 patent/US10883005B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10619059B1 (en) | 2020-04-14 |
US10883005B1 (en) | 2021-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10883005B1 (en) | Catalyst ink for three-dimensional conductive constructs | |
Cheng et al. | Ink‐jet printing, self‐assembled polyelectrolytes, and electroless plating: low cost fabrication of circuits on a flexible substrate at room temperature | |
KR100988295B1 (en) | Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells | |
US6548122B1 (en) | Method of producing and depositing a metal film | |
CN102970829B (en) | The preparation method of substrate | |
US7987813B2 (en) | Apparatuses and methods for maskless mesoscale material deposition | |
EP1295344B1 (en) | Direct printing of thin-film conductors using metal-chelate inks | |
JP2005512766A (en) | Solid material deposition | |
KR20120093188A (en) | Copper metal film, method for producing same, copper metal pattern, conductive wiring line using the copper metal pattern, copper metal bump, heat conduction path, bondig material, and liquid composition | |
WO2006041657A9 (en) | Maskless direct write of copper using an annular aerosol jet | |
JP2002324966A (en) | Method for forming circuit pattern utilizing ink-jet printing method | |
SE1100624A1 (en) | Layer-based manufacture of free-form micro-components of multimaterial | |
JP2005537386A (en) | Low viscosity precursor composition and method for depositing conductive electronic features | |
JP2001516805A (en) | Adhesion of substances on surfaces | |
JP2018121052A (en) | Interlayer printing process | |
CN105792510A (en) | Wire structure and manufacturing method thereof | |
US20050130397A1 (en) | Formation of layers on substrates | |
WO2019098195A1 (en) | Article and production method therefor | |
Perera et al. | Recent progress in functionalized plastic 3D printing in creation of metallized architectures | |
US10349510B2 (en) | Method for additively manufacturing components | |
JPH0314512B2 (en) | ||
CN101597440B (en) | Printing ink, method using printing ink to manufacture electric conduction line and circuit board therewith | |
Curtis et al. | Metallizations by direct-write inkjet printing | |
KR20060123213A (en) | The formation of layers on substrates | |
Curtis et al. | Direct-write printing of silver metallizations on silicon solar cells |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
AS | Assignment |
Owner name: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION, VIRGINIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MORRIS, DAVID;TIMLER, JOHN;SCHIPP, JASON;SIGNING DATES FROM 20190617 TO 20200620;REEL/FRAME:054288/0728 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
AS | Assignment |
Owner name: CITIBANK, N.A., NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:SCIENCE APPLICATIONS INTERNATIONAL CORPORATION;REEL/FRAME:056011/0903 Effective date: 20210419 |