Early Time Charge Replenishment of the Power Delivery Network in Multi-Layer PCBs
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The investigation of decoupling issues has been extensively treated in the literature in both the frequency and the time domain [1-9]. The two domains describe from different perspectives the same physical phenomenon, being related by a Fourier transform. In this article, well known decoupling issues usually addressed in the frequency domain [1,2] are discussed in the time domain. Moreover, some modeling issues related to the cavity model approach are discussed and, in particular, the circuit extraction feature associated with this methodology is utilized throughout the article to carry out the time domain simulations within a SPICE based-tool. The depletion of charges stored between the power bus is investigated in the time domain as a function of the plane thickness, SMT decoupling closeness and interconnect inductance values.