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pod capacitors, how should they be conected ?

Discussion in 'CAD' started by frank, May 8, 2004.

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  1. frank

    frank Guest


    For a pod (poly-on-diffusion) capacitor, which terminal is preferred
    to be the stable one?
    At what voltage, vdd or gnd?
    PLUS terminal: polygate
    MINUS terminal : buried N region (what exactlly is this ? is it like
    WELL/SUBSTRATE: high voltage substrate that should be grounded via
    guard ring.

    The pod capacitors is used as decoupling capacitor.

    BTW, I was told that there is an additionnal current path in pod
    capacitors, that does not exist in poly-on-poly capacitors, is this
    true ?

    Thank you
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