Low inductance power distribution system for an integrated circuit chip

摘要

A low impedance electrical pathway from decoupling capacitance located on a circuit board to an integrated circuit chip. The integrated circuit includes multiple power and ground C4 bumps and is positioned on a first side of an integrated circuit carrier which is positioned on a first side of a circuit board. The integrated circuit carrier includes lateral conductors such as voltage and ground power planes. Power and ground carrier vias extend from the voltage and ground power planes, respectively, to the first side of the carrier, and power and ground subgroups of carrier vias extend from the voltage and ground power planes, respectively, to power and ground solder balls on a second side of the carrier. The circuit board includes power and ground plated through holes extending from contact pads on the first side of the circuit board to contact pads on a second side of the circuit board. Decoupling capacitors are positioned on the second side of the circuit board. The decoupling capacitors have positive and negative electrodes are electrically coupled to the power and ground plated through holes respectively. The C4 power and ground bumps, the power and ground carrier vias, the power and ground carrier via subgroups, the power and ground solder balls, the contact pads, the power and ground plated through holes, and the positive and negative electrodes are arranged in anti-parallel tessellations to reduce the inductance of a loop circuit from the decoupling capacitors to the integrated chip circuit.