Abstract:
An apparatus for heating surfaces in the internal space of a motor vehicle comprises at least one heating element, having at least one heating conductor that forms an electrical heating circuit, and at least one carrier material, wherein the heating conductor has at least two HC terminal ends and the temperature acquisition element has at least two TA terminal ends. This apparatus for heating is characterized in that at least two of the HC and TA terminal ends are electrically connected to first HC terminal areas or first TA terminal areas of a printed circuit board and in that the printed circuit board has second HC terminal areas and second TA terminal areas, wherein the first HC terminal areas and the second HC terminal areas are at least in part connected to each other via first pcb traces and the first TA terminal areas and the second TA terminal areas via second pcb traces, wherein the first and the second pcb traces are part of the printed circuit board, and wherein the printed circuit board is arranged on, under or at the at least one carrier material.
Abstract:
A substrate structure is presented that can include a porous polyimide material and electrodes formed in the porous polyimide material. In some examples, a method of forming a substrate can include depositing a barrier layer on a substrate; depositing a resist over the barrier layer; patterning and etching the resist; forming electrodes; removing the resist; depositing a porous polyimide aerogel; depositing a dielectric layer over the aerogel material; polishing a top side of the interposer to expose the electrodes; and removing the substrate from the bottom side of the interposer.
Abstract:
A printed circuit board for use with a cooling device configured to cool at least one device is provided. The printed circuit board includes a substrate having a first surface and a second surface opposing the first surface; a ground plane on the first surface of the substrate, and circuitry in a circuit-region on the second surface of the substrate. The ground plane includes a patterned-region that is patterned with an array of holes. The circuitry is configured for use with the at least one device to be cooled. When a first side of the cooling device contacts the ground plane, and when the at least one device to be cooled contacts the circuitry, a reduced cross-sectional area of the patterned-region prevents heat from a second side of the cooling device from degrading performance of the at least one device.
Abstract:
A substrate for a light-emitting diode comprising a metal base with a thickness of a predetermined value or more is constituted so that the thickness of a top conductor for an electrical connection with a light-emitting diode (LED) in a predetermined range falls within a predetermined range and the thickness of an insulation layer which electrically insulates the metal base and the top conductor and the thickness of the top conductor meet a predetermined relation. Thereby, a substrate for a light-emitting diode which can show a high heat dissipation capacity by achieving a low thermal resistance as the total thermal resistance of the whole substrate without reducing an insulation reliability and high-humidity reliability of the substrate is provided.
Abstract:
Disclosed herein are a hybrid heat-radiating substrate including a metal core layer; an oxide insulating core layer that is formed in a thickness direction of the metal core layer to have a shape where the oxide insulating core layer is integrally formed with the metal core layer, an oxide insulating layer that is formed on one surface or both surfaces of the metal core layer, and a circuit layer that is configured to include first circuit patterns formed on the oxide insulating core layer and second circuit patterns formed on the oxide insulating layer, and a method of manufacturing the same.
Abstract:
Conductive lines are deposited on a substrate to produce traces for conducting electricity between electronic components. A patterned metal layer is formed on the substrate, and then a layer of material having a low thermal conductivity is coated over the patterned metal layer and the substrate. Vias are formed through the layer of material having the low thermal conductivity thereby exposing portions of the patterned metal layer. A film of conductive ink is then coated over the layer of material having the low thermal conductivity and into the vias to thereby coat the portions of the patterned metal layer, and then sintered. The film of conductive ink coated over the portion of the patterned metal layer does not absorb as much energy from the sintering as the film of conductive ink coated over the layer of material having the low thermal conductivity. The layer of material having the low thermal conductivity may be a polymer, such as polyimide.
Abstract:
A semiconductor assembly includes a multilayer wiring board including at least three insulating layers, first, second and third insulating layers and a semiconductor device attached to one principal surface of the first insulating layer. The first, second and third insulating layers are stacked in this order. The multilayer wiring board further includes a heat-insulating member made of a material having a lower thermal conductivity than the insulating layers. The heat-insulating member is disposed between the first and second insulating layers or next to the first insulating layer at a side opposite to the one principal surface.
Abstract:
An electronic circuit unit includes a multi-layer substrate in which high frequency circuits are provided on two different layers and a ground layer is formed between the two layers, and grounding lands connected to peripheral conductive members through connection bars formed on a plurality of layers of the multi-layer substrate. The grounding lands are connected to each other through a via hole and conducted to the ground layer, and the connection bars protruding radially outward from at least two grounding lands provided on different layers are arranged in different directions with respect to a circumferential direction such that the connection bars do not overlap each other along a thickness direction of the multi-layer substrate.
Abstract:
Provided is a micro heat flux sensor array having reduced heat resistance. A micro heat flux sensor array may include a substrate, a plurality of first sensors formed on a first side of the substrate, and a plurality of second sensors formed on a second side of the substrate. Each of the plurality of first and second sensors may include a first wiring pattern layer of a first conductive material, a second wiring pattern layer of a second conductive material contacting the first wiring pattern layer, and an insulating layer in contact with the first and second wiring patterns.
Abstract:
A multilayer wiring board is inhibited from being warped when flip-chip bonding a semiconductor device to the multilayer wiring board, thereby increasing the reliability of connecting the semiconductor assembly to a motherboard.A heat-insulating layer 10 is provided between a core board 1 and a flip-chip bonding-side insulating layer 3 in a multilayer wiring board MB1, thereby preventing thermal conduction from a heat tool, so that the amounts of thermal expansion of the core board 1 and an insulating layer 4 are minimized, resulting in reduced warpage of the multilayer wiring board MB1.