Design of Crosstalk NAND Gate Circuit Based on Interconnect Coupling Capacitance

With scaling down of CMOS circuit technology, the size of CMOS metal interconnect line is getting thinner. After researching of the line-to-line coupling capacitance and line crosstalk mechanism, a crosstalk gate circuit design scheme based on interconnect coupling capacitance is proposed. Firstly, the influence factors of the coupling capacitance among the mental lines are analyzed. Then, the gate capacitance of the CMOS transistor is used to simulate the coupling capacitance among the interconnection lines. Finally, the NAND gate circuit is designed based on the interconnect crosstalk logic. Under the TSMC 65nm technology, the SPECTRE simulation result shows that the crosstalk gate logic function is correct.