Impact of crosstalk on delay time and a hierarchy of interconnects

Impact of crosstalk on delay time and a hierarchy of interconnects is clarified. The delay time increase is induced by the almost same phenomenon as the crosstalk noise in short interconnects. For global interconnects, the delay time increase by crosstalk is enhanced and hence the delay time improvement trades off between the reduction of the lateral capacitance and the increase of wiring resistance. A multilevel interconnect scheme at each technology generation is further investigated considering the crosstalk effect. Delay time improvements by circuit techniques are discussed to reduce the delay time increase by crosstalk.