Demonstration of a Subthreshold FPGA Using Monolithically Integrated Graphene Interconnects.

We have demonstrated a subthreshold FPGA system using monolithically integrated graphene wires. The graphene wires replace double-length lines in the interconnect fabric of a custom FPGA implemented in 0.18- \mu\m CMOS. The four-layer graphene wires have lower capacitance than the CMOS aluminum wires, resulting in up to 2.11\times faster speeds and 1.54\times lower interconnect energy when driven by a low-swing voltage of 0.4 V. This paper presents the first graphene-based system application and experimentally demonstrates the potential of using low-capacitance graphene wires for ultralow power electronics. [ABSTRACT FROM AUTHOR]