A Comparison Study of the effects of Supply Voltage and Temperature on the Stability and Performance of CNFET and Nanoscale Si-MOSFET SRAMs

Mahdi Moradinasab and Morteza Fathipour
University of Tehran


In this paper we investigated the supply voltage dependence and temperature effects in Static Random Access Memory (SRAM) characteristics. Two nanoscale SRAM cells based on Carbon Nanotube Field Effect Transistors (CNFETs) and Silicon MOSFET Transistors (Si-MOSFETs) were investigated for application in 32nm technology node. Our simulations show that the stability of CNFET SRAM against supply voltage variation and temperature influences is more than that of its Si-MOSFET SRAM counterpart. Also, the circuit performance affected by these two parameters in a 32k SRAM array was investigated. The results show that the read access time in CNFET SRAM arrays based on chirality vectors bigger than (23,0), is less than conventional MOSFET SRAM array.