Abstract:
A method for producing a circuit board involves printing a U.V. curable ink onto a substrate in a desired circuit pattern and curing the ink by exposing it to a pulsed U.V. source or subjecting the circuit pattern prepared from a U.V. curable ink containing magnetite particles to a magnetic field to move the magnetite particles to the upper surface of the U.V. curable ink. Other embodiments include circuit boards made in accordance with these methods and the use of the U.V. curable ink as a shielding composition for enclosures housing electronic equipment.
Abstract:
A flexible circuit which may be a strap or a board or the like has a plurality of conductors exposed on one surface in a predetermined array and a heater disposed on the opposed surface so as to heat the exposed conductors. The exposed conductors may have solder or the heat activated conductive bonding material applied thereto so that the flexible circuit may be directly connected to a component, a printed circuit board, a connector or the like. If a reusable bonding material, such as solder, is employed the heater may be utilized to both connect and disconnect the flexible circuit.
Abstract:
Flexible tape having a pressure-sensitive adhesive layer containing particles, each particle having a ferromagnetic core and an electrically conductive surface. By virtue of the ferromagnetic cores, the particles can be magnetically attracted to form a large number of discrete electrically conductive bridges extending through the thickness of the adhesive layer. The tape can be used both to bond together and to electrically connect individual members of facing arrays of electrodes.
Abstract:
La présente invention concerne un dispositif électronique textile (100) apte à être connecté à une zone conductrice d'un textile, ledit dispositif comprenant un circuit électronique (140); au moins un premier moyen de connexion mécanique et électrique (120) apte à se connecter à la zone conductrice d'un textile; un substrat textile (130) comprenant au moins un second moyen de connexion électrique (131), ledit au moins un second moyen de connexion électrique étant connecté électriquement au circuit électronique (140) et au au moins un premier moyen de connexion mécanique et électrique (120); et une enveloppe flexible (110) englobant totalement ou partiellement ledit circuit électronique (140), ledit au moins un premier moyen de connexion mécanique et électrique (120) et ledit substrat textile (130), ledit au moins un premier moyen de connexion mécanique et électrique (120) étant au moins partiellement accessible à travers l'enveloppe flexible (110). La présente invention concerne également un procédé pour la fabrication d'un tel dispositif.
Abstract:
An apparatus and method, the apparatus comprising: a layer of quantum tunnelling composite configured such that in a non-compressed state the quantum tunnelling composite is an electrical insulator and in a compressed state the layer of quantum tunnelling composite is an electrical conductor;a magnetic portion configured to cause compression of the quantum tunnelling composite; and wherein the apparatus is configured to be coupled to a reciprocal apparatus where the reciprocal apparatus comprises a reciprocal magnetic portion such that when the apparatus is coupled to the reciprocal apparatus the magnetic portion causes compression of the quantum tunnelling composite to provide a direct current path through the quantum tunnelling composite to the reciprocal apparatus.
Abstract:
A circuitry arrangement (1) comprising several electronic parts (25, 26) mounted to a circuit board (2), at least one conductor section (4, 5) extending between the electronic parts (25, 26) within a first conductor layer, and a closed conductor loop (13) comprising at least one loop section (6, 7) running in parallel to the at least one conductor section (4, 5) within a second conductor layer neighboring the first conductor layer. The closed conductor loop (13) is configured to reduce a tendency towards oscillations of a current flowing through the conductor section (4, 5) in operation of the circuitry arrangement (1). The conductor loop (13) is closed via at least one electronic component (11) mounted to an outer surface (3) of the circuit board (2).
Abstract:
A lighting system including modules containing LEDs or other electroluminescent devices and loosely constrained magnetic structures at least partially contained within cavities in the module substrate that are connected to fixtures under magnetic force. The loosely constrained magnetic structures accommodate mechanical variations in the system and provide a method to connect modules mechanically, electrically and thermally to different fixtures or positions in fixtures without tools. The relatively short distance separating magnetic structures provides high connection forces with the use of relatively small magnets. Magnets and electrical contacts are not located directly between the LED subassembly and the fixture, which provides higher thermal conductivity pathways to remove heat from the LEDs. Biasing members may be used to increase thermal contact. Magnetic structures may, but are not required, to conduct electricity. Fixtures that attach to modules include rails, sockets, heat sinks and two-dimensional structures with recessed electrodes for improved electrical safety.
Abstract:
A modular interconnection system in the form of a releasable modular interconnect (215,230) is provided. The releasable modular interconnect may include a substrate (220,240) with a plurality of releasable contact regions (225,235), where each releasable contact region may be positioned to overlay a respective terminal (205,210) of a power cell. The releasable modular interconnect may also include at least one conductive interconnect member affixed to the substrate, where the conductive interconnect member includes at least a one conductive releasable contact disposed within a releasable contact region of the substrate. The conductive releasable contact may be positioned to form a releasable electrical connection with a terminal of a power cell when a force is applied to the first releasable contact region in a direction toward the terminal of the power cell. Additional and related methods and apparatuses are also provided.
Abstract:
A low melting temperature composite material including an alloy having about 0.1% by weight to about 99% by weight of tin and about 0.1% by weight to about 90% by weight of an element selected from the group consisting of silver and gold, and about 0.1% by weight to about 50% by weight of magnetic particles dispersed in the alloy. Method of heating such a composite material, remotely manipulating such a composite material with magnetic fields, enhancing the mechanical properties of such a material, and making such a material are also disclosed.