Fabrication and Characterization of Embedded Capacitors in PCB Using Epoxy/BaTiO3/PI Capacitor CCL
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    Abstract:

    The embedded capacitors in PCB (Printed Circuit Board) were fabricated using commercial epoxy/BaTiO3/PI capacitor CCL in conventional PCB build-up process. Capacitance measuring demonstrated the tolerances of the obtained capacitors ranged from -4.0% to -6.0%, and special design to compensate the capacitor geometry significantly decreased the tolerance to -1.1%. Reflow process at 260℃, high thermal cycling, 85℃/85% RH and high-voltage breakdown tests were performed to evaluate the reliability of embedded capacitors. It is summarized that the fabrication of epoxy/BaTiO3/ PI composite embedded capacitors is successfully demonstrated using conventional PCB build-up processes, and their environmental reliability are evaluated to be excellent.

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ZHOU Guoyun, HE Wei, WANG Shouxu, FAN Haixia, XIAO John. Fabrication and Characterization of Embedded Capacitors in PCB Using Epoxy/BaTiO3/PI Capacitor CCL[J]. Journal of Integration Technology,2014,3(6):14-22

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  • Online: January 07,2015
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