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Composite $BaTiO_3$ Embedded capacitors in Multilayer Printed Circuit Board  

You, Hee-Wook (광운대학교 전자재료공학과)
Park, Yong-Jun (광운대학교 전자재료공학과)
Koh, Jung-Hyuk (광운대학교 전자재료공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.2, 2008 , pp. 110-113 More about this Journal
Abstract
Embedded capacitor technology is one of the effective packing technologies for further miniaturization and higher performance of electric packaging system. In this paper, the embedded capacitors were simulated and fabricated in 8-layered printed circuit board employing standard PCB processes. The composites of barium titanante($BaTiO_3$) powder and epoxy resin were employed for the dielectric materials in embedded capacitors. Theoretical considerations regarding the embedded capacitors have been paid to understand the frequency dependent impedance behavior. Frequency dependent impedance of simulated and fabricated embedded capacitors was investigated. Fabricated embedded capacitors have lower self resonance frequency values than that of the simulated embedded capacitors due to the increased parasitic inductance values. Frequency dependent capacitances of fabricated embedded capacitors were well matched with those of simulated embedded capacitors from the 100MHz to 10GHz range. Quality factor of 20 was observed and simulated at 2GHz range in the 10 pF embedded capacitors. Temperature dependent capacitance of fabricated embedded capacitors was presented.
Keywords
Embedded capacitors; passive devices; SRF(self resonance frequency); composite; discrete component;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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