WO2012137048A1 - Composé destiné à produire des circuits conducteurs - Google Patents

Composé destiné à produire des circuits conducteurs Download PDF

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Publication number
WO2012137048A1
WO2012137048A1 PCT/IB2011/055194 IB2011055194W WO2012137048A1 WO 2012137048 A1 WO2012137048 A1 WO 2012137048A1 IB 2011055194 W IB2011055194 W IB 2011055194W WO 2012137048 A1 WO2012137048 A1 WO 2012137048A1
Authority
WO
WIPO (PCT)
Prior art keywords
compound
compound according
quartz
patac
previous
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.)
Ceased
Application number
PCT/IB2011/055194
Other languages
English (en)
Inventor
Giuseppe PARONETTO
Fabio Cappelli
Giorgio Eberle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
4SPF LOGICA Srl
Original Assignee
4SPF LOGICA Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/IB2011/051495 external-priority patent/WO2011125037A2/fr
Priority claimed from IT000079A external-priority patent/ITTV20110079A1/it
Priority claimed from IT000078A external-priority patent/ITTV20110078A1/it
Priority claimed from PCT/IB2011/054507 external-priority patent/WO2012137045A1/fr
Priority to EP11802150.0A priority Critical patent/EP2695495A1/fr
Application filed by 4SPF LOGICA Srl filed Critical 4SPF LOGICA Srl
Priority to RU2014118827A priority patent/RU2642884C2/ru
Priority to EP12797975.5A priority patent/EP2791985B1/fr
Priority to US14/351,403 priority patent/US20140264142A1/en
Priority to CN201280050309.0A priority patent/CN104040745B/zh
Priority to PCT/IB2012/055455 priority patent/WO2013054259A2/fr
Publication of WO2012137048A1 publication Critical patent/WO2012137048A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/09—Forming piezoelectric or electrostrictive materials
    • H10N30/092—Forming composite materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L49/00—Compositions of homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
    • 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
    • H05K3/105—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 by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
    • C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
    • C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
    • C08G2261/3223—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
    • 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
    • H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
    • H05K2203/107—Using laser light
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12181—Composite powder [e.g., coated, etc.]

Definitions

  • the invention relates to a compound, to be spread for example on any surface, in which to carry out conductor circuits and/or electrical charge generators, in the form of a signal or current.
  • the compound can be modified by an electromagnetic field to vary its electrical conductivity.
  • a paint or compound which can be polarised for example by means of a laser, in which polymers and dopants have been dispersed so as to give it electrical properties.
  • the compound contains a polymer with a double covalent conjugated bond, Thiophene, which when illuminated by Laser is able to modify its electrical conductivity.
  • the invention sets out to overcome this problem with the compound defined in claim 1.
  • the compound has a specific structure which makes its polarisation and de-polarisation easy and reliable so as to selectively create within it conductor or insulation paths or zones.
  • PATAC has the advantage of having a different configuration of the free radical which a Laser can oust to make the polymer conductive. When the radical is ousted by the Laser, the PATAC becomes more conductive than the Thiophene. In addition, the PATAC is easier to polarise with a Laser at 488 nm, commonly found in labs or for sale.
  • PATAC belongs to the family of polyacetylenes, and represents a generic family of photopolymers which require only laser exposure to become electrical conductors by breakage of the lateral thioalkyl chains. PATAC appears as a brown powder, soluble in everyday aromatic solvents. After laser exposure, the zones struck lose part of the thioalkyl lateral chains and a blue-black, insoluble and conductor polymer is then obtained. PATAC is also a polymer with double covalent conjugated bond, that is to say a heterocyclic compound, formed of n atoms of carbon and one atom of a different type (or radical) linked in a loop structure.
  • the choice of the type of luminous stimulus to use is important since too bland a stimulus is not sufficient to break the carbon-sulphur bonds, while an overly energetic stimulus gives rise to a form of pyrolysis which gives an insulating material.
  • the preferred laser for striking the PATAC is a laser with a wavelength of 488 mm.
  • the compound can be applied in liquid or gel form directly to a medium or applied by means of a separate film or rigid or flexible support layer.
  • the compound according to the invention also makes it possible to exploit the electrical specifications for the generation of electricity or mechanical vibrations, see below.
  • the compound preferably contains in dispersion all the elements which we will describe as inside a generic solvent, preferably aromatic.
  • a generic solvent preferably aromatic.
  • the use of a benzene is preferred, and preferably a dichlorobenzene (because it dissolves the PATAC or Thiophene well), a dichloromethane or nitro-type diluent.
  • the PATAC and any one of the elements described below (even if cited in preferred combinations) is dispersed in the solvent.
  • the compound can then be spread or sprayed onto any surface. It can comprise metallic oxides which are useful since they make electrons available in the matrix /compound.
  • a further component for example such as a graphite or graphene which are excellent dopants, above all on account of their elevated electrical conductivity. They also give the compound the property of being oily, that is of always maintaining a certain fluidity, without ever drying. Particular graphite sub-families which have proven extremely advantageous, because said qualities are accentuated, are fullerene and graphene.
  • Ferric chloride or aluminium chloride may be added to the metallic oxides plus PATAC.
  • Such chlorides are highly doping, and are convenient both because they eliminate a hysteretic phenomenon and because they have a marked ability to release/accept electrons.
  • the ferric chloride or aluminium chloride are oxides dissolved in chlorine which dissolve well in the PATAC, which is a plastic. The excellent homogenisation ensures optimal communication at an electronic level, favouring the interchange of electrons towards the PATAC.
  • the metal oxides may, for example, be composed of iron oxides in the formulation Fe 2 0 3 or Fe 3 0 4 or even better, for their improved magnetisation/saturation curve, of chrome oxides or dioxides, in the formulation Cr0 2 .
  • the metallic oxides, with any graphite, and the PATAC are dispersed in the matrix of paint in proportionate quantities to the type of current or electrical signal which said paint must conduct.
  • the compound is struck with a Laser or other electromagnetic radiation to energise or de- energise the PATAC molecules sending the right energy. When they are energised their electronic status changes and they become conductors. A subsequent radiation pours energy onto the energised molecule and returns it to its original electronic configuration, that is to say, an insulator.
  • the Laser radiation breaks the bond of the radical in the PATAC containing sulphur, leaving the polymer chains of PATAC in reciprocal electronic and conductive contact through the free orbital. A subsequent radiation reconstitutes the bond with the free radical and/or disconnects the chains of PATAC again, and at that point the compound becomes an insulator once again.
  • the Laser can be used to create conductive zones or paths in the compound as desired.
  • affine elements for the PATAC atomically very close, which trap the ousted electron and return it to the polymer when the energy of anti-polarisation arrives (the molecule of the polymer is therefore functionalised by the affine element).
  • An element suitable for such purpose is quartz, but other materials may be used for such purpose.
  • the compound may be loaded with PATAC and a quartz -based filler (one or more of its 19 families), in particular BaTi0 3 or PbTi0 3 .
  • a component with Ti0 3 has the advantage of being very adhesion-effective, does not dry and is able to make free electrons available with little energy.
  • quartz of different particle sizes is preferably dispersed, both to carry charges towards the PATAC and to promote the changes of the energised state, both as voltage/current generator by piezoelectric effect.
  • a thrust of an object on the compound generates a discharge or impulse of current in the quartz.
  • By pressing and releasing the compound periodically a pulsating current is generated.
  • Such current may be collected by one or more paths of PATAC made conductive.
  • vibration-generating areas can be designed at will on the paint (by means of polarisation). Alternatively, or additionally, the vibration can be activated in areas chosen at will by having an electrical energisation available for the quartz.
  • a process for loading quartz involves sublimating two conductor sheets above and below a layer of quartz at high temperature (about 700°C), sintering it at 1000°C and then cooling it to about 200°C before exposing it to an electric field of about 3000V/cm so as to position all the quartz particles with the electrodes parallel and alongside each other.
  • a sandwich structure of oriented quartz placed between two conductor sheets results.
  • An inventive solution envisages that such sandwich is ground to form small particles of quartz as desired which each have two electrodes. The particles are then dispersed in the compound.
  • Another problem is the orientation of the particles of loaded quartz. Especially when the quartz generates charge impulses following a charging or pulsating force, the maximum energy yield is only achieved if the quartz is oriented parallel to the direction of the pulsating force. That is to say that the micro-electrodes of each particle of quartz should align with the line of action of the force, so as to receive the maximum component.
  • each application may require different orientations. For example, if the charging force is a vehicle and the compound is spread on the road, it is clear that the quartzes should preferably be inclined in relation to the orthogonal of the road surface, towards the oncoming vehicle. Only thus is the component resulting from the movement impressed on the component exploited.
  • the sintering method described above may at most produce quartz dispersed in a compound which has two electrodes, the axis of which is oriented substantially orthogonal to the main surface of the compound.
  • the invention sets out to overcome this problem by means of an original method. Not only does the use of a magnetic field enable orientation of all the quartz particles in whatever direction desired, but this happens even at very low temperatures, e.g. max 150°C, at which the compound is still in a gelatinous form and not dry, and does not risk deterioration as a result of the high temperature. Note that the prior art with electrical field, applied rather to a solid sandwich and not to a fluid compound, requires heating to a high temperature of the material, with problems of deterioration. The axis of the quartz particle can be oriented at will by simply directing the magnetic field in the desired direction. The quartz particles are floating in the compound yet to solidify and rotate to orient themselves without much opposition.
  • An alternate magnetic field generated for example with an inductor coil, at frequencies for example to the order of KHz or static magnetic fields generated by magnetic dipoles, is more advantageous because it periodically induces an orienting momentum on the particles and, period after period, succeeds in orienting the quartz without stress on the material.
  • UV the general type used, for example to dry paints, may be used.
  • the invention relates to a method for inserting or dispersing quartz inside a compound containing PATAC or Thiophene or a polymer polarisable by an electromagnetic field having electric resistivity, from insulator to conductor and vice versa, modifiable by an electromagnetic field or Laser, in which particles comprising two conductor layers and one layer of quartz in the middle are dispersed in the compound.
  • a sintered material comprising in a sandwich structure two conductor layers and one quartz layer in the middle, is ground to obtain said particles.
  • the particles of quartz dispersed in the compound are oriented spatially by means of a magnetic field, where preferably the magnetic field is an alternate magnetic field.
  • One way of exploiting the magnetic field as an orienting stimulus of the quartz is to include in said sandwich structure an element (dopant) sensitive to a magnetic field or a magnetic element (dopant).
  • the element may be in nanometric form such as powder, particles or atoms.
  • the sensitive element is preferably inserted in said sandwich structure by means of diffusion, making the sensitive element migrate into the quartz.
  • the migration may preferably determine that the diffused element attaches itself superficially to the quartz.
  • Another preferred system is to join/fasten said sensitive element mechanically to said structure, for example chemically.
  • Said magnetic field sensitive element, or element (dopant) capable of being magnetised may for example be iron or iron powder or a powder magnet.
  • said element it is preferable for said element to already have a magnetic polarity, that is a north and south magnetic pole so that the quartz orientation is more accurate.
  • a magnetic polarity that is a north and south magnetic pole
  • the particle comprising two conductor layers and a quartz layer in the middle in a sandwich structure, and a magnetic element associated to such structure offers all the advantages which can be obtained from the piezoelectricity of the quartz and the possibility to orient it spatially inside the compound by mean of a magnetic field in a molasses form.
  • the said particle may be used in any type of compound which can exploit its piezoelectric and/or spatial orientation abilities.
  • the compound is exposed to UV radiation to fix the spatial position of the particles.
  • the PATAC (or Thiophene) is loaded with aggregating gents such as Ag, Ni, St, Au or Pt.
  • the PATAC goes from about 2MQ/cm2 to about 100Q/cm2 by means of Laser radiation.
  • Silver, or one out of Ni, St, Au or Pt has given optimal conductivity results, lowering the resistance by orders of magnitude.
  • the silver replaces the sulphur atom lost by the PATAC or Thiophene in the compound during polarisation by Laser, and creates a conductive bridge between the molecules of PATAC (or Thiophene).
  • the percentage in volume of silver in the compound is preferably 6% to 14 %. Below these values it does not have the desired effect and above, it damages the Thiophene or PATAC molecule.
  • Compounds such as Carbon Black, and/or components of carbon black and/or carbon nanotubes may be added for the same functioning goals.
  • the compound may be struck by a magnetic (and/or electrical field) to orient the quartz thereby preventing it from making elements other than the quartz migrate or shift.
  • the aforesaid materials are non-magnetic and are not influenced by the magnetic field.
  • One unforeseen problem which the applicant encountered is the damage to the polymer chains caused by the steam which the substrate may absorb by exposure during the application.
  • the paint applied or in flight may therefore contain or absorb within it molecules or nanoparticles of water. From a microscopic point of view not only do such molecules constitute gigantic obstacles for the chains to be polarised, but they may also expand as the temperature rises and thereby break the molecular chains already formed. It is clear that the physical properties and industrial characteristics of the substrate are greatly jeopardised by this phenomenon. Having to operate in highly controlled surroundings or a vacuum is undesirable both because the production costs are every high and because any use by non specialised operators is precluded.
  • the invention intends to resolve this problem by adding a humidity acceptor to the compound so as to absorb the molecules of water and keep them in fixed areas of the substrate.
  • the acceptor is able to capture the water molecules floating in the substrate and attract them towards itself, for example by spontaneous migration and /or a strong chemical affinity. It follow that the various molecules which scattered throughout the substrate could randomly damage the structure aggregate permanently in isolated points and leave a high percentage of free space fully polarisable.
  • a zeolite in the form of a salt or paste remaining inert in the absence of water and not creating any problem in the substrate, may be used as the acceptor.
  • Iodine may also be used a humidity acceptor and offers the following advantages: It can be introduced as gas or liquid, adding it to the substrate while still damp, thereby adapting to any type of deposition method. Iodine is a conductor and may therefore be used to increase the conductivity of the substrate and is also of limited cost.
  • Another concept of the invention relates to a polarisation method of a volume of substrate material containing the polarisable molecules of PATAC.
  • An electromagnetic radiation capable of creating an active zone able to locally supply the energy needed to vary the state of polarisation of a molecule such as PATAC and therefore its conductivity to create or cancel conductive paths is sent into the substrate.
  • the relative position of the active zone and the volume may be varied (that is to say the active zone is moved and the volume is fixed or vice versa, or both are relatively mobile), and the relative position varied along three Cartesian axes.
  • the active zone can polarise a chain of molecules which has any two end points in space of the volume and three-dimensional extension desired between these points.
  • the angle of convergence (flat or cone- shaped) of the rays in said point may be varied to modify the spatial position of the point (that is of the active zone). If the laser sources are at a fixed distance from the volume, then it is sufficient to vary the direction of each Laser ray as needed to make them collimate in the desired point. In the case, for example, in which the polarised molecules of PATAC form conductive paths in the volume, the non-polarised condition corresponds to behaviour as an electrical insulator.
  • a chain of PATAC molecules can be polarised to make it extend from a certain depth of the material, where the chain forms a path ( e.g. flat) up to a more external ( visible) surface of the material , where the path can be contacted to pick up or emit a signal .
  • a molecule chain may be polarised so as to make it extend around the longitudinal axis of another molecule chain polarised previously to create junctions on staggered planes for the paths or turns or bypasses.
  • the pre-existent chain (or path) is bypassed without interrupting the electrical continuity of the new path.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention a pour objet d'améliorer les caractéristiques d'un composé contenant une dispersion polymère polarisable par un champ électromagnétique ou électrique présentant une résistivité électrique, depuis un isolant vers un conducteur et inversement, et pouvant être modifié par ledit champ, le polymère comprenant du PATAC.
PCT/IB2011/055194 2011-04-07 2011-11-19 Composé destiné à produire des circuits conducteurs Ceased WO2012137048A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11802150.0A EP2695495A1 (fr) 2011-04-07 2011-11-19 Composé destiné à produire des circuits conducteurs
PCT/IB2012/055455 WO2013054259A2 (fr) 2011-10-12 2012-10-09 Procédé permettant d'insérer ou de disperser des particules présentant des propriétés piézoélectriques à l'intérieur d'une couche
RU2014118827A RU2642884C2 (ru) 2011-10-12 2012-10-09 Способ внедрения или диспергирования частиц с пьезоэлектрическими свойствами в слое
CN201280050309.0A CN104040745B (zh) 2011-10-12 2012-10-09 将具有压电特性的颗粒嵌入或散布到层内的方法
US14/351,403 US20140264142A1 (en) 2011-10-12 2012-10-09 Method for inserting or dispersing particles with piezoelectric properties inside a layer
EP12797975.5A EP2791985B1 (fr) 2011-10-12 2012-10-09 Procédé permettant d'insérer ou de disperser des particules présentant des propriétés piézoélectriques à l'intérieur d'une couche

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
PCT/IB2011/051495 WO2011125037A2 (fr) 2010-04-08 2011-04-07 Procédé de production de circuits électriques sur une surface donnée
IBPCT/IB2011/051495 2011-04-07
IT000078A ITTV20110078A1 (it) 2011-06-08 2011-06-08 Metodo per tracciare piste conduttive
IT000079A ITTV20110079A1 (it) 2011-06-08 2011-06-08 Metodo di polarizzazione di un volume di substrato
ITTV2011A000079 2011-06-08
ITTV2011A000078 2011-06-08
PCT/IB2011/054507 WO2012137045A1 (fr) 2011-04-07 2011-10-12 Procédé ou méthode d'insertion ou d'étalement de quartz à l'intérieur d'un substrat
IBPCT/IB2011/054507 2011-10-12

Publications (1)

Publication Number Publication Date
WO2012137048A1 true WO2012137048A1 (fr) 2012-10-11

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Application Number Title Priority Date Filing Date
PCT/IB2011/055194 Ceased WO2012137048A1 (fr) 2011-04-07 2011-11-19 Composé destiné à produire des circuits conducteurs

Country Status (2)

Country Link
EP (1) EP2695495A1 (fr)
WO (1) WO2012137048A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015019266A1 (fr) 2013-08-03 2015-02-12 Tryonic Ltd Composé pour former des pistes électriques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009117460A1 (fr) * 2008-03-19 2009-09-24 E. I. Du Pont De Nemours And Company Compositions de polymère électriquement conductrices, et films réalisés à partir de celles-ci
WO2011125037A2 (fr) * 2010-04-08 2011-10-13 Spf Logica S.R.L. Procédé de production de circuits électriques sur une surface donnée

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009117460A1 (fr) * 2008-03-19 2009-09-24 E. I. Du Pont De Nemours And Company Compositions de polymère électriquement conductrices, et films réalisés à partir de celles-ci
WO2011125037A2 (fr) * 2010-04-08 2011-10-13 Spf Logica S.R.L. Procédé de production de circuits électriques sur une surface donnée

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
D'AMATO R ET AL: "Chemical synthesis of polyphenylacetylene nanospheres with controlled dimensions for photonic crystals", MATERIALS SCIENCE AND ENGINEERING C, ELSEVIER SCIENCE S.A, CH, vol. C23, 1 January 2003 (2003-01-01), pages 861 - 865, XP002369781, ISSN: 0928-4931, DOI: 10.1016/J.MSEC.2003.09.104 *
H.-K. ROTH ET AL: "Electronic properties of laser modified poly(bis-alkylthio-acetylene)", SYNTHETIC METALS, vol. 101, no. 1-3, 1 May 1999 (1999-05-01), pages 832 - 833, XP055030455, ISSN: 0379-6779, DOI: 10.1016/S0379-6779(98)01236-3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015019266A1 (fr) 2013-08-03 2015-02-12 Tryonic Ltd Composé pour former des pistes électriques

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Publication number Publication date
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