在分析了阈值电压的影响因素的基础上,分别通过工艺和电路两种途径调整阈值电压。在布尔乘法器设计中,对关键路径上的器件采用较低的阈值电压以提高速度,其余器件仍然保持较高的阈值电压以避免过大的漏电流,模拟结果表明1.0V工作时的功耗比3.3V降低近90%,而延时仍然保持在较合理的范围内,从而达到了保持性能和降低功耗的设计目标。 Based on the analysis of the influence factors of the threshold voltage, the threshold voltage is adjusted by both the process and the circuit respectively. In Boolean multiplier designs, lower threshold voltages are used for devices on critical paths to increase speed while remaining devices maintain high threshold voltages to avoid excessive leakage currents. The simulation results show that power dissipation at 1.0V operation Nearly 90% lower than the 3.3V, while the delay is still maintained within a reasonable range, so as to achieve the design of maintaining performance and reduce power consumption.