Yannick L. Le Coz
Associate Professor of Electrical,
Computer, and Systems Engineering,
Rensselaer Polytechnic Institute
Ph.D., Electrical Engineering, The
Massachusetts Institute of Technology, 1988
M.S., Electrical Engineering, The Massachusetts Institute
of Technology, 1982
B.S., Electrical Engineering, Rensselaer Polytechnic Institute,
Le Coz joined the Rensselaer faculty full-time
in 1988 as an assistant professor of Electrical, Computer, and Systems
Engineering. He was awarded a tenured associate professorship in
1995. Le Coz has been a visiting faculty member at LSI Logic Corporation
and at Sandia National Laboratories. He has been named a Digital
Equipment Corporation Fellow, a General Motors Scholar, and a Connecticut
State Scholar, and has received awards from the American Cyanamid
Company and PerkinElmer, Inc. Le Coz is a member of Tau Beta Pi,
Eta Kappa Nu, Sigma Xi, and the American Physical Society.
Le Coz's research interests include transport
in semiconductor devices, equilibrium heterojunction theory, and
random-walk algorithms for the physical design of ICs. His research
team is focusing on inventing and developing novel, stochastic RW
algorithms for solving electro- and magneto-static, electrodynamic,
and thermal equations in massively coupled electrical and optical
IC-interconnect structures. A principal goal of his research is
to maintain full parallelism, which will provide the efficient computational
enhancement needed to meet future modeling and simulation requirements
in high-end digital ICs.
Team members are currently working on RW impulse-response
extraction algorithms. They are developing novel impulse-response,
moment-extraction algorithms for both lumped-element and continuum-domain
descriptions of IC interconnects. Their approach involves diagrammatic
expansion of a perturbation series (similar to that employed by
R.P. Feynman in theoretical physics) and subsequent stochastic RW
Another area of Le Coz's research is heat-equation
solution in complex, IC-interconnect structures. The desire to improve
IC integration density has generated significant interest in 3D
(stacked-chip) configurations. In fact, thermal management within
3D chips appears to present a serious technological challenge. A
related problem is the development of efficient algorithms and methodologies
for numerical analysis of heat transport within these complex conductor-dielectric
interconnect structures. Le Coz's team is developing a multi-scale,
thermal-analysis methodology for 3D chip configurations. Their methodology
relies on a global-local, floating-RW method for solving the heat
equation in complex material structures.
Le Coz's studies support three tasks of the Interconnect Focus Center
(IFC): Circuit & System Design and Modeling, Novel Communication
Mechanisms, and Materials and Processing. His research sponsors
include the Semiconductor Research Corporation (SRC), the Microelectronics
Advanced Research Corporation (MARCO), the Defense Advanced Research
Projects Agency (DARPA), and LSI Logic Corporation (LSI).
Y.L. Le Coz, D. Krishna, G. Hariharan, D.M., Petranovic, "
A Sum-over-Paths Impulse-Response Moment-Extracútion Algorithm for RLC IC-Interconnect Networks", Journal
of Solid-State Electronics, 49-10, 1604-16, (2005).
Y.L. Le Coz, D. Krishna, D. Petranovic, W.M.
Loh, and P. Bendix, "A Sum-over-Paths Impulse-Response Moment-Extracútion
Algorithm for RC IC-Interconnect Networks", Journal
of Solid-State Electronics, 48-12, 2133-45, 2004.
K. Chatterjee, P. Matos, Y.L. Le Coz, "A Novel Dirichlet-Neumann Random-Walk Algorithm
for the Solution of the Time-Harmonic Helmholtz Equation at Multiple-Wavelength Length Scales: 1D and 2D Verification" ,
Applied Computational Electromagnetics Society (ACES) Journal, 19-1b, 127-32, 2004.
K. Chatterjee and Y.L. Le Coz, "A Floating Random-Walk Algorithm based on Iterative
Perturbation Theory: Solution of the 2D, Vector-Potential Maxwell-Helmholtz Equation",
Applied Computational Electromagnetics Society (ACES) Journal,Ed. A.Z. Elsherbeni, 18-1, 48-57, 2003.
Y.L. Le Coz, "On Quantum Statistical Equilibrium and the Law of Constant Fermi Potential" ,
Journal of Applied Physics, 93-4, 2069-78, 2003.
R.B. Iverson and Y.L. Le Coz, "A Floating
Random-Walk Algorithm for Extracting Electrical Capacitance,"
Mathematics and Computers in Simulation, Transactions of the
International Association for Mathematics and Computers in Simulation,
Ed. I. Dimov, 55, 59-66, (2001).
Y.L. Le Coz, H.J. Greub, and R.B. Iverson, "Performance
of Random-Walk Capacitance Extractors for IC Interconnects: A Numerical
Study," Solid-State Electronics, 42, 581-588,
Y.L. Le Coz and H.F. Tiersten, "Comments
on 'Ehrenfest Derivation of the Mean Forces Acting in Materials
with Nonuniform Band Structure: A Canonical Approach,'" Solid-State
Electronics, 39, 767-768, (1996).
B.H. Floyd and Y.L. Le Coz, "Iterative Spectral
Solution of the Poisson-Boltzmann Equation in Semiconductor Devices,"
Journal of Applied Physics, 76, 7889-7898, (1994).
Y.L. Le Coz, R.B. Iverson, T.-L. Sham, H.F. Tiersten,
and M.S. Shephard, "Theory of a Floating Random-Walk Algorithm
for Solving the Steady-State Heat Equation in Complex, Materially
Inhomogeneous Rectilinear Domains," Numerical Heat Transfer,
Part B: Fundamentals, 26, 353-366, (1994).
Yannick L. Le Coz
6225 Low Center for Industrial Innovation
Rensselaer Polytechnic Institute
110 Eighth Street
Troy, N.Y. 12180 USA
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