Concurrent flip-flop and repeater insertion for high performance integrated circuits

For many years, CMOS process scaling has allowed a steady increase in the operating frequency and integration density of integrated circuits. Only recently, however, have we reached a point where it takes several clock cycles for global signals to traverse a complex digital system such as a modern microprocessor. Thus, interconnect latency must be taken into account in current and future design tools at the architectural as well as synthesis level. To this purpose, this work proposes a new latencyaware technique for the performance-driven concurrent insertion of flipflops and repeaters in VLSI circuits. Overwhelming evidence showing an exponential increase in the number of pipelined interconnects with process scaling, for high-performance microprocessors as well as highend ASICs, is also presented. This increase indicates a radical change in current design methodologies to cope with this new emerging problem.

• Type: Conference
• Year: 2002
• Where: ICCAD
• Authors: Pasquale Cocchini
• Keywords: CMOS Process Scaling, Hardware, ICCAD 2002, Performance-driven Concurrent Insertion, Steady Increase