Method for connecting inter-layer conductors and components in 3D structures
First Claim
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1. A method of connecting a first component or conductor to a second component or conductor in a three-dimensional electronic, electromagnetic or electromechanical device comprising the steps of:
- providing at least a first layer of a substrate material having the first component or conductor disposed on or within the first layer;
depositing a second layer of the substrate material on the first layer, wherein the second layer includes an elongated cavity having a first end and a second end such that the first end is disposed above a first exposed portion of the first component or conductor;
attaching a first end of a filament to the first exposed portion of the first component or conductor via the first end of the elongated cavity;
placing a second end of the filament within the second end of the elongated cavity such that the filament is disposed within the elongated cavity;
depositing a third layer of the substrate material on the second layer such that a first portion of the elongated cavity proximate to the first end of the elongated cavity is covered by the third layer and a second portion of the elongated cavity is exposed;
depositing the second component or conductor on or within the third layer proximate to the second portion of the elongated cavity;
depositing a fourth layer of the substrate material on the third layer such that a second portion of the second component or conductor is exposed and the second portion of the elongated cavity is exposed; and
removing the second end of the filament from the second portion of the elongated cavity and attaching the second end of the filament to the exposed second portion of the second component or conductor.
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Abstract
The present invention provides systems and methods for creating interlayer mechanical or electrical attachments or connections using filaments within a three-dimensional structure, structural component, or structural electronic, electromagnetic or electromechanical component/device.
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Citations
32 Claims
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1. A method of connecting a first component or conductor to a second component or conductor in a three-dimensional electronic, electromagnetic or electromechanical device comprising the steps of:
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providing at least a first layer of a substrate material having the first component or conductor disposed on or within the first layer; depositing a second layer of the substrate material on the first layer, wherein the second layer includes an elongated cavity having a first end and a second end such that the first end is disposed above a first exposed portion of the first component or conductor; attaching a first end of a filament to the first exposed portion of the first component or conductor via the first end of the elongated cavity; placing a second end of the filament within the second end of the elongated cavity such that the filament is disposed within the elongated cavity; depositing a third layer of the substrate material on the second layer such that a first portion of the elongated cavity proximate to the first end of the elongated cavity is covered by the third layer and a second portion of the elongated cavity is exposed; depositing the second component or conductor on or within the third layer proximate to the second portion of the elongated cavity; depositing a fourth layer of the substrate material on the third layer such that a second portion of the second component or conductor is exposed and the second portion of the elongated cavity is exposed; and removing the second end of the filament from the second portion of the elongated cavity and attaching the second end of the filament to the exposed second portion of the second component or conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
the conductive mesh comprises a set of filaments made of a metal, a metal alloy, a conductive polymer or a wire; and the non-conductive mesh comprises a set of carbon fibers or Kevlar fibers.
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14. The method as recited in claim 12, wherein the mesh comprises a stainless steel mesh, an aluminum mesh, a copper mesh, a brass mesh, a steel mesh, a copper chromium mesh, or a copper-nickel alloy mesh.
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15. The method as recited in claim 12, wherein the mesh comprises a geometrical shape.
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16. The method as recited in claim 12, wherein the mesh comprises a heat sink, an antenna, a conductive plane, a mechanical reinforcement, or an electromagnetic shield.
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17. The method as recited in claim 12, wherein the mesh is embedded into the first layer to form a polymer-mesh composite material.
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18. The method as recited in claim 12, wherein the mesh is embedded into the first layer one portion at a time using a multi-step process.
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19. The method as recited in claim 12, wherein the mesh is embedded into the first layer in a single process step.
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20. The method as recited in claim 12, wherein the first layer includes a cavity and a portion of the mesh is disposed within the cavity.
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21. The method as recited in claim 12, wherein the mesh improves a physical characteristic, a thermal characteristic, or an electrical characteristic of the first layer, or the three-dimensional electronic, electromagnetic or electromechanical device.
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22. The method as recited in claim 1, wherein the first layer includes a cavity and a portion of the filament is disposed within the cavity.
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23. The method as recited in claim 1, wherein the filament improves a physical characteristic, a thermal characteristic, or an electrical characteristic of the first layer.
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24. The method as recited in claim 1, wherein the substrate material comprises a thermoplastic material, or a thermoplastic material which is filled with another polymer material, a ceramic material, a metallic material, a mineral material, a glass ceramic material, a semi-conductor material, a nanomaterial, a biomaterial, an organic material, an inorganic material or any combination thereof to enhance mechanical, thermal, dielectric, magnetic, or electromagnetic properties.
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25. The method as recited in claim 24, wherein the thermoplastic material comprises acrylonitrile butadiene styrene (ABS), ABSi, ABSplus, ABS-M30, ABS-M30i, ABS-ESDI, polycarbonate (PC), PC-ABS, PC-ISO, polyphenylsulfone (PPSF/PPSU), ULTEM 9085 or any combination thereof.
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26. The method as recited in claim 25, wherein the another polymer material comprises poly(methyl methacrylate) (PMMA), polypropylene, polyolefin, LL-PE, HDPE, polyvinyl acetate, polyester, polyether, polyamides, nylon, polyimides, polyketone, polyether ethyl ketone (PEEK), polybutadiene, polylactic acid, polycaprolactone, polyethylene terephthalate, liquid crystalline polymer (LCP), polystyrene, polyvinyl chloride, polyfluoroethylene, polydifluoroethylene, polytetrafluoroethylene, ZEONEX RS420, Eccostock HIK-TPO, co-polymers and block co-polymers of the previous, or any combination thereof.
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27. The method as recited in claim 1, wherein the one or more layers are deposited using a fused deposition modeling (FDM) process or other extrusion-based additive manufacturing processes, a selective laser sintering (SLS) process or other powder bed fusion additive manufacturing process, a laminated object manufacturing (LOM) process or other sheet lamination additive manufacturing process utilizing thermoplastic sheets, a stereolithography process or other vat photopolymerization additive manufacturing process utilizing photocurable thermoplastics, a material jetting process utilizing photocurable thermoplastics, or other additive thermoplastic-based 3D printing process.
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28. The method as recited in claim 1, wherein the first component or conductor and the second component or conductor comprise an electronic component, an electrostatic component, a pneumatic component, an electroacoustic component, a Micro-Electro-Mechanical system (MEMS), a biomedical component, an electrochemical component, an electromechanical component, an electromagnetic component, a mechanical component, a metamaterial component, an optical component, a photonic component, a thermal component, a thermal management component, a mesh, an embedded conductor, a wire, a conductive pad, a conductive terminal, a conductive trace, a via to another layer or a connector.
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29. The method as recited in claim 28, wherein the electronic component comprises an integrated circuit, a resistor, a capacitor, an inductor, a transistor, a thermistor, a thyristor, a sensor, a processor, a memory, an interface device, a display, a power source, an energy conversion device or an antenna.
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30. The method as recited in claim 28, wherein the electronic component is placed by hand or using a component placement machine, wherein the component placement machine comprises a pick and place machine, a robotic process or other automated component placement technology.
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31. The method as recited in claim 1, wherein the first component or conductor or the second component or conductor comprises an embedded conductor.
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32. The method as recited in claim 31, wherein the embedded conductor is placed using a wire-feed and cutting system, and at least one energy source for embedding the filament or filament mesh selected from the group comprising:
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an ultrasonic horn or sonotrode for generating frictional heat between at least a portion of the filament or filament mesh and the substrate; an induction heating coil for inducing eddy currents and thereby Joule heat within at least a portion of the filament or filament mesh; one or more resistive heating elements for generating and transferring heat by conduction to at least a portion of the filament or filament mesh; electrodes for passing electrical current through at least a portion of the filament or filament mesh and thereby generating Joule heat within the filament or filament mesh;
an air heating and circulating device or system to transfer heat to at least a portion of the filament or filament mesh by forced convection heating; and
a radiant infrared heat source to transfer heat radiatively to at least a portion of the filament or filament mesh.
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Specification