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US 6,746,751 B2Granted
Material having a conductive pattern and a material and method for making a conductive pattern
AssigneeAgfa-Gevaert
InventorsJohan Lamotte, David Terrell
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AssigneeAgfa-Gevaert
InventorsJohan Lamotte, David Terrell
Estimating the term…
A material for making a conductive pattern, the material comprising a support and a conductive element, the conductive element containing a polyanion and an intrinsically conductive polymer, characterized in that one surface of the conductive element is an outermost surface of the material, the other surface of the conductive element is contiguous with a patterned surface, the patterned surface consisting of at least two types of surface element, and those parts of the conductive element contiguous with one type of the surface elements are capable of being at least partially removed by a developer.
A material for making a conductive pattern, said material comprising a support, a patterned surface, and a conductive element, said conductive element containing a polyanion and an intrinsically conductive polymer, wherein said patterned surface is provided with the conductive element and one surface of said conductive element is an outermost surface of said material, the other surface of said conductive element being contiguous with said patterned surface, said patterned surface consisting of surface elements, said surface elements being of at least two types, and the parts of said conductive element contiguous with one type of said at least two types of said surface elements being capable of being at least partially removed by a developer.
A material for making a conductive pattern, said material comprising a support and a conductive element, said conductive element containing a polyanion and an intrinsically conductive polymer, wherein one surface of said conductive element is an outermost surface of said material, the other surface of said conductive element is contiguous with a patterned surface, said patterned surface consisting of surface elements, said surface elements being of at least two types, and the parts of said conductive element contiguous with one type of said at least two types of said surface elements are capable of being at least partially removed by a developer, wherein said conductive element further contains a multidiazonium salt, a resin comprising a diazonium salt or both a multidiazonium salt and a resin comprising a diazonium salt.
A material for making a conductive pattern, said material comprising a support and a conductive element, said conductive element containing a polyanion and an intrinsically conductive polymer, wherein one surface of said conductive element is an outermost surface of said material, the other surface of said conductive element is contiguous with a patterned surface, said patterned surface consisting of surface elements, said surface elements being of at least two types, and the parts of said conductive element contiguous with one type of said at least two types of said surface elements are capable of being at least partially removed by a developer, wherein said conductive element further contains a bis(aryldiazosulphonate) salt, which is capable of reducing the removability of the outermost layer if said outermost layer is exposed, according to formula (II):
A material for making a conductive pattern, said material comprising a support and a conductive element, said conductive element containing a polyanion and an intrinsically conductive polymer, wherein one surface of said conductive element is an outermost surface of said material, the other surface of said conductive element is contiguous with a patterned surface, said patterned surface consisting of surface elements, said surface elements being of at least two types, and the parts of said conductive element contiguous with one type of said at least two types of said surface elements are capable of being at least partially removed by a developer, wherein said conductive element further contains a polymer or copolymer of an aryldiazosulphonate represented by formula (III):
A material for making a conductive pattern, said material comprising a support and a conductive element, said conductive element containing a polyanion and a water-insoluble intrinsically conductive polymer, wherein one surface of said conductive element is an outermost surface of said material, the other surface of said conductive element is contiguous with a patterned surface, said patterned surface consisting of surface elements, said surface elements being of at least two types, and the parts of said conductive element contiguous with one type of said at least two types of said surface elements are capable of being at least partially removed by a developer.
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Organic substances: ionic conductors
Intrinsically conductive polymers: comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
Details: use of materials for the conductive, e.g. metallic pattern
Materials: intrinsically conductive polymer [ICP]; Semiconductive polymer
Term ended 20 Jun 2022 (estimated)
The present invention relates to a material and a method for making a conductive pattern.
Transparent ITO (indium-tin oxide) electrodes are used for the fabrication of flexible LC displays, electroluminescent devices and photovoltaic cells. These electrodes are made by vacuum sputtering ITO onto a substrate. This method involves high temperatures, up to 250° C., and therefore glass substrates are generally used. The range of potential applications is limited, because of the high fabrication costs, the low flexibility (pliability) and stretchability, due to the brittleness of the ITO layer and the glass substrate. Therefore interest is growing in all-organic devices, comprising plastic resins as a substrate and organic intrinsically conductive polymer layers as electrodes. Such plastic electronics allow the realization of low cost devices with new properties (Physics World, March 1999, p.25-39). Flexible plastic substrates can be provided with an intrinsically conductive polymer layer by continuous roller coating methods (compared to batch process such as sputtering) and the resulting organic electrodes enable the fabrication of electronic devices with higher flexibility and a lower weight.
The production and use of intrinsically conductive polymers such as polypyrrole, polyaniline, polyacetylene, polyparaphenylene, polythiophene, polyphenylenevinylene, polythienylenevinylene and polyphenylenesulphide are known in the art.
Ingredients used in the conductive element which are not mentioned above are:
PEDOT=poly(3,4-ethylenedioxythiophene)
PSS=poly(styrenesulphonic acid)