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Dielectric Properties of LCP and Ceramic Filler for Embedded Matching Capacitor
Keywords: LCP, Embedded capacitor, TCC
We manufactured Liquid Crystal Polymer(LCP) and (1-x)BaTiO3-xSrTiO3(BST) ceramic composites and investigated dielectric properties to use as embedded capacitor in PCB and replace LTCC substrates. The dielectric properties of these composites are varied with volume fraction of BST and ratios of BT/ST. Dielectric constants are in the range of 3~28. In addition, we could get low TCC and High Q value that could not achieve in other ceramic-polymer composites. Especially, in composite with x=0.4 and 50vol% BST, the dieletric constant and Q-value are 27 and 300, respectively. And more TCC is -116~145ppm/ in the temperature range of -55~125. We think that this composites can be used high-Q substrate material like LTCC and embedded temperature compensation capacitor in PCB. Originally in the Ceramic, LTCC, Polymer and Conductive Materials session.
Jin Cheol Kim, R&D Engineer
Samsung Electro-Mechanics Co. Ltd
Suwon, Gyunggi-Do 443-743,

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