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Publication
IEEE Transactions on Electron Devices
Paper
TCAD/physics-based analysis of high-density dual-BOX FD/SOI SRAM cell with improved stability
Abstract
This paper presents a new SRAM cell using a global back-gate bias scheme in dual buried-oxide (BOX) FD/SOI CMOS technologies. The scheme uses a single global back-gate bias for all cells in the entire columns or subarray, thereby reducing the area penalty. The scheme improves 6T SRAM standby leakage, read stability, write ability, and read/write performance. The basic concept of the proposed scheme is discussed based on physical analysis/equation to facilitate device parameter optimization for SRAM cell design in back-gated FD/SOI technologies. Numerical 2-D mixed-mode device/circuit simulation results validate the merits and advantages of the proposed scheme. © 2009 IEEE.