摘要:
Provided is a physiological signal detection module which has a heating member and a multi-channel connector. The heating member maintains an electrode's contact with a user skin at a constant temperature, and the multi-channel connector module for electrical connection transmits the physiological signal to an external physiological signal detection apparatus. It is possible to prevent the skin from being directly contacted with the electrode in the cold state and have a less impact given by a change of the impedance due to a skin temperature based on the change of the season and external temperature, so that the stable physiological signal can be detected without distortion.
摘要:
Disclosed is a PCB having axially parallel via holes, in which an outer ground via hole, acting as a ground, is formed around a via hole for intercircuit connection in the PCB, thereby minimizing the effect of noise caused by the via hole.
摘要:
Disclosed herein is a method for manufacturing a component-embedded printed circuit board that is economically advantageous and simple. The method is characterized by stacking boards in which a high density of electronic components are mounted to form a core layer in which the electronic components are embedded, and by subsequently building up additional circuit layers.
摘要:
The invention relates to derivatized, well-dispersed CNTs that have enhanced miscibility with organic agents. Composite materials may be made using such CNTs. The composite materials, in turn, may be used in optical and electronic applications.
摘要:
The present invention relates to an embedded chip printed circuit board in which a space required for embedding a chip is formed to a desired depth depending on various thicknesses of chips to be embedded, and thus, the circuit line for the electrical connection between the embedded chip and the circuit pattern layer can be formed to be relatively short, thereby maximizing space efficiency and decreasing inductance at high frequencies. In addition, a method of manufacturing such an embedded printed circuit board is also provided.
摘要:
A printed circuit board (PCB) having a three-dimensional spiral inductor, which includes a plurality of insulating layers and conductor layers. The PCB comprises a plurality of coil conductor patterns made of conductive material and shaped into strips, which is provided on the plurality of conductor layers, respectively, such that the plurality of coil conductor patterns are parallel to each other and positioned on the same plane perpendicular to the conductor layers, and in which each of the plurality of coil conductor patterns is longer than an adjacent inner coil conductor pattern.
摘要:
Disclosed is a PCB including an embedded capacitor, in which a dielectric layer and an upper electrode layer are formed after a lower electrode layer of the embedded capacitor is formed, thereby providing a microcircuit pattern on a circuit layer having a lower electrode layer formed thereon, and a method of fabricating the same.
摘要:
Disclosed is a PCB including an embedded passive component and a method of fabricating the same. The PCB includes at least two circuit layers in which circuit patterns are formed. At least one insulating layer is interposed between the circuit layers. A pair of terminals is vertically formed through the insulating layers, plated with a first conductive material, and separated from each other by a predetermined distance. The embedded passive component is interposed between the terminals and has electrodes formed on both sides thereof. The electrodes are separated from the terminals by a predetermined distance and electrically connected to the terminals through a second conductive material.