VLSI - Lecture 8f: SNM Calculation 

Bar-Ilan University 83-313: Digital Integrated Circuits
This is Lecture 8 of the Digital Integrated Circuits (VLSI) course at Bar-Ilan University. In this course, I cover VLSI circuit design, starting with the technology and through the design of complex digital circuits, such as multipliers and memory blocks.
Lecture 8 discusses Static Random Access Memory (SRAM), starting with the concept of memory and then diving into an in-depth looka the 6T SRAM bitcell, including circuit design, operation and layout, as well as a deep look at SRAM stability analysis, calculation and simulation. Section 8f provides an explanation of how to calculate the static noise margin of an SRAM circuit within a SPICE simulation environment. This explanation is based on the ground-breaking paper by Seevinck, et al., from 1987, and includes a methodology for running these simulations that I developed and haven't found anywhere else - before or since.
Lecture slides can be found on the EnICS Labs web site at:
enicslabs.com/...
All rights reserved:
Prof. Adam Teman
Emerging nanoscaled Integrated Circuits and Systems (EnICS) Labs
Faculty of Engineering, Bar-Ilan University