Abstract:
The present invention provides overvoltage protection. Specifically, the present invention provides a voltage variable material (VVM, 100) that includes an insulative binder (50) that is formulated to intrinsically adhere to conductive and non-conductive surfaces. The binder and thus the VVM is self-curable and may be applied to an application in the form of an ink, which dries in a final form for use. The binder eliminates the need to place the VVM in a separate device or for separate printed circuit board pads on which to electrically connect the VVM. The binder and thus the VVM can be directly applied to many different types of substrates, such as a rigid (FR-4) laminate, a polyimide or a polymer. The VVM can also be directly applied to different types of substrates that are placed inside a device.
Abstract:
An ESD apparatus which includes an electrical overstress suppression device (16) in series with a capacitor (24). The ESD apparatus is ideally suited for use with network communication devices, but also for any electronic device requiring overvoltage protection and isolation. The electrical overstress device having a voltage variable material and the capacitor (24) is sized to withstand an application of predetermined steady state voltage.
Abstract:
A glass epoxy board used as a board or reinforcing plate in various electric circuits; and a magnetic head device having such glass epoxy board, wherein in a glass epoxy board, glass cloth is held by an epoxy resin layer containing carbon powder. Thereby, the carbon power provides the glass epoxy board with a suitable degree of electric conductivity, thus making it possible to prevent electrification and to suppress the generation of static electricity.
Abstract:
The present invention provides an interconnect and a method for the creation and removal of shunts useful for the prevention of ESD/EOS damage to electrical components. In one embodiment of the present invention, the conductive pathway is provided and removed by exposing the interconnect's carbonizable and ablatable substrate to a radiant energy source such as a laser beam. The present invention provides for interconnects that include at least two conductive wires or leads engaged on at least one surface by a carbonizable and ablatable material. The conductive wires may each include a branched dead end lead portion interleaved with the branched dead end lead portion of the other. Alternatively, the conductive wires may extend in close proximity to each other in a curved or sinuous or serpentine or backtracking pattern. An interconnect in accord with the present invention may include a substrate substantially supporting the conductive wires except at predetermined locations or proposed shunt sites wherein there is at least one through hole in the substrate.
Abstract:
Circuit and circuit carries include a dielectric substrate having a conductive layer mounted thereon. The conductive layer is patterned to define a plurality of spaced apart conductive elements. A static charge dissipative layer is in contact with and extending between at least two of the conductive elements. The static charge dissipative layer has a surface resistivity of between 1 x 10 and 1 x 10 ohms/cm. The static charge dissipative layer is made of a material selected from the group consisting of diamond-like carbon, silicone nitride, boron nitride, boron trifluoride, silicone carbide and silicone dioxide. Circuits and circuit carriers according to the present invention allow static charges to be controllably and reliably dissipated from a surface of the circuit or circuit carrier such that the potential for damage from static discharge to electrical components connected to the circuit is reduced.
Abstract:
Methods for protecting an electronic device from contaminants by applying different insulating and conducting materials to different vital components of a device are disclosed. In one embodiment, the method comprises applying an electrically insulating material, such as isobutylene isoprene rubber, to one or more connectors and components located on the printed circuit board of the device. The method further comprises applying a polymer capable of carrying a charge, such as a silicone-based polymer, to different connectors and components on the printed circuit board. The method leads to different components being coated with different materials. Electronic devices that are protected by such coatings are also disclosed, such as smart phones, computers, head phones, and gaming devices, all of which show improve protection from contaminants, especially liquid contaminants.
Abstract:
The invention relates to a galvanic separating apparatus, comprising a printed circuit board (3), the printed circuit board (3) comprising a first soldering pad (7), a second soldering pad (8) and a recess (12), whereby the pads (7, 8) are arranged on a lower side (9) of the printed circuit board (3) thereby defining a clearance and/or creepage distance (10, 11) between the pads (7, 8), and the recess (12) is arranged between the pads (7, 8), a primary insulated winding layer (5) connected to the first soldering pad (7) and a second insulated winding layer (6) connected to the second soldering part (8), whereby the winding layers (5, 6) are arranged on an upper side (2) of the printed circuit board (3), and an insulating layer (13), whereby the insulating layer (13) extends from the upper side (2) through the recess (12) and protrudes on the lower side (9) beyond the printed circuit board (3) thereby increasing the clearance and/or creepage distance (10, 11).
Abstract:
Ein Multi-LED System weist einen Träger (2) und mehrere Leuchtdioden (3, 3`, 3``) auf, die auf dem Träger (2) angeordnet sind. Der Träger (2) umfasst einen Grundkörper (4), in dem mehrere elektrische Bauelemente (11, 11`, 11``, 12) eingebettet sind. Beispielsweise weist der Grundkörper (4) ein Harz- und/oder Polymermaterial auf. Es kann sich bei dem Multi-LED System (1) insbesondere um ein vierfach LED Flash Modul handeln.
Abstract:
Es wird ein Vielschicht-Trägersystem (10) beschrieben, aufweisend wenigstens ein Vielschichtkeramiksubstrat (2), wenigstens ein Matrixmodul (7) von wärmeproduzierenden Halbleiterbauelementen (1a, 1b), wobei die Halbleiterbauelemente (1a, 1b), auf dem Vielschichtkeramiksubstrat (2) angeordnet sind, und ein weiteres Substrat (3), wobei das Vielschichtkeramiksubstrat (2) auf dem Substrat (3) angeordnet ist, wobei das Matrixmodul (7) über das Vielschichtkeramiksubstrat (2) und das weitere Substrat (3) elektrisch leitend mit einer Treiberschaltung verbunden ist. Ferner werden ein Verfahren zur Herstellung eines Vielschicht-Trägersystems (10) sowie die Verwendung eines Vielschichtkeramiksubstrats beschrieben.