Worawit Somha and Hiroyuki Yamauchi
A NanoScaled SRAM Guard Band Design with Gaussian Mixtures Model of Complex Long Tail RTN Distributions
313 - 323
2013
7
3
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/9656
https://publications.waset.org/vol/75
World Academy of Science, Engineering and Technology
This paper proposes, for the first time, how the
challenges facing the guardband designs including the margin
assistcircuits scheme for the screeningtest in the coming process
generations should be addressed. The increased screening error
impacts are discussed based on the proposed statistical analysis
models. It has been shown that the yieldloss caused by the
misjudgment on the screening test would become 5orders of
magnitude larger than that for the conventional one when the
amplitude of random telegraph noise (RTN) caused variations
approaches to that of random dopant fluctuation. Three fitting methods
to approximate the RTN caused complex Gamma mixtures
distributions by the simple Gaussian mixtures model (GMM) are
proposed and compared. It has been verified that the proposed
methods can reduce the error of the failbit predictions by 4orders of
magnitude.
Open Science Index 75, 2013