Abstract:
A method for manufacturing a circuit board featuring conductive patterns, said method comprising the following steps of: i) affixing a conductive layer, such as a metal foil (3), to a substrate material (1) selectively, such that a part of the conductive layer, such as the metal foil (3), comprising desired areas (3a) for the final product and narrow areas (3c) between the final product's conducting areas, is affixed to the substrate material (1) by means of a bond (2), and removal-intended more extensive areas (3b) of the conductive layer, for example the metal foil (3), are left substantially unattached to the substrate material in such a way that the removable area (3b) is in attachment with the substrate material (1) by not more than its edge portion to be patterned in a subsequent step ii) and possibly by sites which preclude a release of the removable areas prior to a step iii); ii) patterning, by a removal of material, the conductive layer, such as the metal foil (3), from narrow gaps between the desired conducting areas (3a), and from an outer periphery of the area (3b) removable in a solid state, for establishing conductor patterns; iii) removing the removable areas (3b), not affixed to the substrate material (1), from the conductive layer, such as the metal foil (3), in a solid state after the conductive layer's edge area, which was removed from the removable area's outer periphery during the course of step ii), no longer holds the removable areas (3b) attached by their edges to the substrate material.
Abstract:
A printed circuit board is provided here, the printed circuit board including a cellulosic polymer, where the cellulosic polymer contains a boronate moiety.
Abstract:
An electronic assembly includes an electronic device having high-resolution features and at least one conductive contact pad. The electronic assembly further includes a substrate supporting the electronic device and an electrical connection having low-resolution features. The electrical connection extends from the at least one conductive contact pad to a position upon the substrate.
Abstract:
Electronic circuits (1, 101) are disclosed. The electronic circuits comprise a first and a second integrated circuit (10a, 110a, 10b, 110b) and a printed circuit board (PCB) (15, 115). The PCB comprises dielectric layers (30a-c, 130) of polymer-based materials having different dissipation factors arranged in accordance with various embodiments for suppressing noise.
Abstract:
An electronic assembly includes an electronic device having high-resolution features and at least one conductive contact pad. The electronic assembly further includes a substrate supporting the electronic device and an electrical connection having low-resolution features. The electrical connection extends from the at least one conductive contact pad to a position upon the substrate.
Abstract:
There is disclosed a method for applying a first metal on paper, which method comprises the steps a) producing polymers on the surface of said paper, said polymers comprising carboxylic groups and adsorbed ions of at least one second metal, said ions being adsorbed at a pH above 7, b) reducing said ions to the second metal and c) depositing said first metal on the reduced ions of said second metal. The invention further comprises objects manufactured according to the method. Advantages of the present invention include improved adhesion of the metal coating, possibility to coat many difficult materials. The process is suitable for large-scale and continuous production and it will reduce the waste of metal. Circuits manufactured according to the invention display improved signal integrity. Also there is the possibility to manufacture circuits which are built up sequentially with several layers of conductors in distinct patterns. It is also possible to manufacture of circuits with a very small line width.
Abstract:
A flexible substrate of an aspect of the present invention includes a substrate made of cellulose-based nanofibers and low-melting-point glass deposited inside the substrate by impregnation. A flexible substrate of another aspect of the present invention includes a substrate made of cellulose-based nanofibers and low-melting-point glass joined to one of principal surfaces of the substrate. A glass transition temperature of the low-melting-point glass is equal to or below 300° C. The flexible substrate is optically transparent.
Abstract:
A method for manufacturing a radiofrequency identification device which includes a manufacturing process for an antenna which includes screen-printing turns of an electrically conductive polymer ink onto a transfer paper sheet, and then subjecting the support to heat treatment to bake and polymerize the conductive ink, connection of a chip 14, provided with contacts, to the antenna 12, lamination which includes making the transfer paper sheet integral with a layer of plastic material 16 which constitutes the support for the antenna, by hot press molding, in such a way that the screen-printed antenna and the chip are both embedded within the layer of plastic material, and removal of the transfer paper sheet.
Abstract:
A disposable electronic device has a body constructed of juxtaposed lengths of an elongate, ribbon-like substrate of dielectric material secured together to establish a multiple-layered self-sustaining structure, and circuitry formed on the substrate. At least a portion of the circuitry is constructed of a deconstructable material which is deconstructed to render the device inoperative by at least one of the following: interrupting a securement of juxtaposed lengths of the substrate, exposing the deconstructable material to at least one of ambient conditions including ambient air, ambient light and ambient moisture, and reaching a predetermined accumulated amount of time during which the circuitry is operated. At least a portion of the substrate is constructed of deconstructable material which is deconstructed by exposure to at least one of the ambient conditions to render the device ready for disposal.
Abstract:
A method of applying an edge electrode pattern to a touch screen. The method includes depositing, on a first surface of a decal strip, conductive material in the form of an edge electrode pattern, placing the first surface of the decal strip on one edge of a touch screen, applying heat and pressure to an opposite surface of the decal strip until the edge electrode pattern is transferred from the first surface of the decal strip to the touch screen; and removing the decal strip.