%0 Conference Paper %B S3S %D 2013 %T An Ultra Low Energy 9T Half-select-free Subthreshold SRAM bitcell %A Arijit Banerjee %A Benton H. Calhoun %K 9T %K bitcell %K half-select-free %K SRAM %K Sub-VT %K subthrehold %B S3S %C Monterey, CA %G eng