A 0.33-V, 500-kHz, 3.94-µW 40-nm 72-Kb 9T Subthreshold SRAM With Ripple Bit-Line Structure and Negative Bit-Line Write-Assist.
Chien-Yu LuMing-Hsien TuHao-I YangYa-Ping WuHuan-Shun HuangYuh-Jiun LinKuen-Di LeeYung-Shin KaoChing-Te ChuangShyh-Jye JouWei HwangPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2012)