A two stage solid state power amplifier at x-band for satellite communication
2003
Summary form only given. Low power SoCs comprising MPUs and SRAMs are becoming increasingly important for high-speed PCs, mobile and medical equipment. The most effective and straightforward way for low power is to reduce the operating voltage VDD. For memory-rich high-speed SoCs, however, the reduction has been extremely difficult with device scaling due to the ever-larger subthreshold leakage and variability. For the LSI industry to continue to proliferate, we have to solve the problem, and, in doing so, open the door to our target: the 0.5-V nanoscale CMOS era. In this talk, first, the challenges and solutions are briefly explained from the viewpoint of circuit designs. Next, new logic gates utilizing gate-source reverse biasing schemes and a boosted word-line-voltage 6-T SRAM cell are proposed and evaluated by simulation in terms of low-VDD potential, stability, and speed. A comparison between an ultra-thin BOX planar FD-SOI and a FinFET is also made. Finally, power dissipation of a 0.5-V 25-nm SoC consisting of a 160-Mgate logic and a 1-Gb SRAM is estimated.
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