Low power logic circuit and SRAM cell applications with silicon on depletion layer CMOS (SODEL CMOS) technology

In this paper, AC performance of SODEL CMOS (1) is discussed, aiming for low power CMOS applications. Propagation delay time (,taupd) in SODEL CMOS has been improved up to 25% in five stacked nFET inverters, and about 30% better power-delay producthas been observed at same taupd, compared to conventional (conv.) bulk CMOS. In SRAM cell application of SODEL CMOS, high SNM of similar to 95 mV was observed at Vdd = 0.6 V. Smaller bitline delay is confirmed by SPICE simulations. Latch-up immunity for alpha-particle was found to be comparable to conv. bulk CMOS. Therefore, SODEL CMOS technology will give us better solution for low power SoC.