2023 Test of Time

D. J. Frank, Y. Taur, M. Ieong, H.-S. P. Wong, “Monte Carlo Modeling of Threshold Variation due to Dopant Fluctuations“, Symp. VLSI Technology, paper J-4, 1999.


This paper, for the first time applied Monte Carlo simulations to model and study rigorously random dopant fluctuations (RDF). The proposed method allowed to include the effect of source-drain dopant fluctuations on the short-channel threshold voltage thereby proving the effectiveness of retrograde body doping.

The paper was ahead of its time. Its modelling approach stands the test of time as its results were applied to a large number of technology platforms.

H. Banba, H. Shiga, A. Umezawa, T. Miyaba, T. Tanzawa, S. Atsumi, and Koji Sakui, “A CMOS Band-Gap Reference Circuit with Sub 1V Operation“, Symp. VLSI Circuits, paper 19.3, 1998.


This paper proposes one of the earliest implementations of a CMOS band-gap reference circuit that can successfully operate at low voltage by applying a new resistive division technique. The commonly known “Banba Bandgap” and its subsequent variations are now in the era of sub-1V technologies quite relevant. The corresponding JSSC paper is referenced by more than 600 papers and in more than 100 patents. The full text has been downloaded more then 21000 times (IEEE Xplore).