A frequency tunable resonant clock distribution scheme using bond-wire inductor

In this paper, we propose a frequency control method for a resonant clock distribution scheme using a bond-wire inductor. The resonant clock distribution using the embedded planes in a package and an inductive load suppresses the clock source jitter and significantly reduces the clock skew by replacing the cascaded repeaters of a conventional on-chip clock distribution. The resonant frequency can be controlled by the inductance of the load and the size of cavity planes. We use a bond-wire inductor instead of a chip inductor for fine tuning of resonant frequency and reducing the parasitic capacitance of integration. We have successfully demonstrated a 1.35 GHz clock delivery network with the transmission line matrix model of the plane cavity and the lumped model of bond-wire inductor. The simulation results show that the source jitter is suppressed by the resonance effect and the skew is minimized and the frequency is controlled by the inductance of a bond wire.