Title :
SRAM read current variability and its dependence on transistor statistics
Author :
Venugopalan, Sarad ; Joshi, Vinayak ; Zamudio, Luis ; Goldbach, Matthias ; Burbach, Gert ; van Bentum, Ralf ; Balasubramanian, S.
Author_Institution :
Dept. of EECS, Univ. of California, Berkeley, Berkeley, CA, USA
Abstract :
Our study breaks down the dependence of SRAM read current (Iread) variability (σIread) into constituting pass-gate (PG) and pull down (PD) NMOS transistor variability. We report a bottoms-up model for σIread including feedback in stacked transistors and discuss its implications on SRAM performance.
Keywords :
MOSFET circuits; SRAM chips; SRAM performance; SRAM read current variability; bottoms-up model; pass-gate NMOS transistor variability; pull down NMOS transistor variability; stacked transistors; transistor statistics; Hardware; Logic gates; Mathematical model; Negative feedback; Random access memory; Transistors; Voltage measurement;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2013 IEEE
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2013.6658430