Nanotechnology for inks and dopants

• US 6,602,595 B2
• Filed: 05/17/2002
• Issued: 08/05/2003
• Est. Priority Date: 11/06/1998
• Status: Expired due to Term

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: NanoProducts Corporation (Nouryon BV)
• Inventors: Yadav, Tapesh, Au, Ming, Miremadi, Bijan, Freim, John, Avniel, Yuval, Dirstine, Roger, Alexander, John, Franke, Evan
• Primary Examiner(s): Le, H. Thi
• Application Number:
  US10/150,722
• Publication Number:
  US 20020176987A1
• Time in Patent Office: 445 Days
• Field of Search: 428/323, 428/328, 428/402
• US Class Current: 428/323
• CPC Class Codes: A61L 27/06 Titanium or titanium alloys
• CPC Class Codes: B01J 12/005 carried out at high temperatures, e.g. by pyrolysis
• CPC Class Codes: B01J 12/02 for obtaining at least one reaction product which, at normal temperature, is in the solid state
• CPC Class Codes: B01J 19/0046 Sequential or parallel reactions, e.g. for the synthesis of polypeptides or polynucleotides; Apparatus and devices for combinatorial chemistry or for making molecular arrays synthesis methods per se C40B50/00
• CPC Class Codes: B01J 19/24 Stationary reactors without moving elements inside B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02
• CPC Class Codes: B01J 2219/00094 Jackets
• CPC Class Codes: B01J 2219/00135 Electric resistance heaters
• CPC Class Codes: B01J 2219/00155 using insulating materials or refractories
• CPC Class Codes: B01J 2219/00177 controlling the pH
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• CPC Class Codes: B01J 2219/00317 Microwell devices, i.e. having large numbers of wells
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• CPC Class Codes: B01J 2219/0043 for direct application of reagents, e.g. through openings in a shutter
• CPC Class Codes: B01J 2219/00653 the compounds being bound to electrodes embedded in or on the solid supports
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• CPC Class Codes: C04B 2235/80 : Phases present in the sintered or melt-cast ceramic products other than the main phase
• CPC Class Codes: C04B 35/00 : Shaped ceramic products characterised by their composition porous ceramic products C04B38/00; ceramic articles characterised by particular shape, see the relevant classes, e.g. linings for casting ladles, tundishes, cups or the like B22D41/02; ceramic substrates for microelectronic semi-conductors H01L23/15; Ceramics compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents C22C; shaping of ceramics B28B; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products chemical preparation of powders of inorganic compounds C01; infiltration of sintered ceramic preforms with molten metal C04B41/51
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• CPC Class Codes: C04B 41/009 : characterised by the material treated
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• CPC Class Codes: C04B 41/89 : for obtaining at least two superposed coatings having different compositions
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• CPC Class Codes: H01G 4/33 : Thin- or thick-film capacitors thin- or thick-film circuits H01L27/00; capacitors without a potential-jump or surface barrier specially adapted for integrated circuits, details thereof, multistep manufacturing processes therefor H01L28/40
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Abstract

Novel inks and dopant materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel ink and dopant-based products.

Claims

1. A method of manufacturing a dispersion comprising:

providing a metal-containing substance;

converting the metal-containing substance into a non-stoichiometric non-equilibrium crystalline nanomaterial;

dispersing the nanomaterial in a chemical, wherein the dispersed nanomaterial has a domain size less than 500 nm.

2. The method of claim 1 wherein the nanomaterial comprises a metal.

3. The method of claim 1 wherein the nanomaterial comprises an oxide.

4. The method of claim 1 wherein the chemical comprises water.

5. The method of claim 1 wherein the chemical comprises organic solvent.

6. A method of claim 5 wherein the solvent comprises an alcohol.

7. The method of claim 1 wherein the chemical comprises a screen printable vehicle.

8. The method of claim 1 wherein the dispersion comprises a paste.

9. The method of claim 1 wherein the nanomaterial has a domain size less than 100 nm.

10. A method of claim 1 wherein the nanomaterial comprises of a dopant.

11. The method of claim 1 wherein the dispersion is an ink.

12. A device manufactured from the ink prepared using the method of claim 11.

13. The method of claim 11 wherein the nanomaterial in the ink has a composition that comprises at least one element from the group:

iron, cobalt, nickel, rare earth, yttrium, titanium, zirconium, sodium, potassium, lithium, barium, magnesium, calcium, strontium, tungsten, tantalum, niobium, molybdenum, zinc, copper, silver, gold, platinum, palladium, tin, indium, silicon, boron, antimony and aluminum.

14. The method of claim 11 wherein the nanomaterial in the ink has a composition that comprises at least two elements selected from the group:

iron, cobalt, nickel, rare earth, yttrium, titanium, zirconium, sodium, potassium, lithium, barium, magnesium, calcium, strontium, tungsten, tantalum, niobium, molybdenum, zinc, copper, silver, gold, platinum, palladium, tin, indium, silicon, boron, antimony and aluminum.

15. The method of claim 11 wherein the nanomaterial in the ink has a composition that comprises more than two elements selected from the group:

iron, cobalt, nickel, rare earth, yttrium, titanium, zirconium, sodium, potassium, lithium, barium, magnesium, calcium, strontium, tungsten, tantalum, niobium, molybdenum, zinc, copper, silver, gold, platinum, palladium, tin, indium, silicon, boron, antimony and aluminum.

16. A product prepared from the dispersion of claim 1 wherein the product is selected from the group consisting of capacitor, varistor, inductor, resistor, piezo device, sensor and filter.

17. An electrode prepared from the dispersion of claim 1.

18. A product manufactured from the dispersion prepared using the method of claim 1.