Richard D. Braatz
Contact Information:
e-mail:
phone: (217) 333-5073
fax: (217) 333-5052
293 RAL
MC-712, Box C-3
600 S. Mathews Ave.
Urbana, IL 61801
Millennium Chair
B.S., Oregon State University, 1988
M.S., California Institute of Technology, 1991
Ph.D., California Institute of Technology, 1993
- Doctoral Thesis Prize, Hertz Foundation, 1994
- Young Faculty Award, DuPont, 1995
- Xerox Award for Faculty Research, College of Engineering, University of Illinois, UC, 1999
- Council of Outstanding Early Career Engineers, Oregon State University, 2000
- Donald P. Eckman Award, American Automatic Control Council, 2000
- Ernest W. Thiele Lecturer, University of Notre Dame, 2001
- Beckman Associate, Center for Advanced Study, University of Ilinois, UC, 2002
- University Scholar, University of Illinois, UC, 2002
- CAST Directors' Award, American Institute of Chemical Engineers, 2003
- Curtis W. McGraw Research Award, American Society for Engineering Education, 2004
- Transactions on Control Systems Technology Outstanding Paper Award, Institute of Electrical and Electronics Engineers, 2005
- Antonio Ruberti Young Researcher Prize, Institute of Electrical and Electronics Engineers, 2005
- CAST Outstanding Young Researcher Award, American Institute of Chemical Engineers, 2005
- Lindsay Distinguished Lecturer, Texas A&M, 2006
- Excellence in Process Development Research Award, American Institute of Chemical Engineers, 2006
- Millennium Chair, University of Illinois, UC, 2006
- Fellow, Institute of Electrical and Electronics Engineers, 2007
- Fellow, International Federation of Automatic Control, 2008
- Journal of Process Control Prize Paper Award (for theory), International Federation of Automatic Control, 2008
- Journal of Process Control Prize Paper Award (for a survey), International Federation of Automatic Control, 2008
Multiscale Systems and Control
New applications in materials, medicine, and computers are being discovered where
the control of events at the molecular and nanoscopic scales is critical to product
quality, although the primary manipulation of these events during processing
occurs at macroscopic length scales. This drives our research program in the
creation of methods for the simulation, design, and control of multiscale systems
that have length scales ranging from the atomistic to the macroscopic.
Microelectronics/materials
Applications include the formation of transistor junctions in advanced CMOS devices
(in collaboration with Prof. E. Seebauer), and the manufacture of copper interconnects
in electronic devices (in collaboration with Prof. R. Alkire). For ultrashallow
junctions, the results motivate the design of new rapid thermal annealing processes
while providing specific recommendations for microelectronics tool manufacturers
on how to optimize processes to produce shallower junctions of higher electrical
activation. For copper interconnects, systems principles are used to gain fundamental
insights into surface reaction mechanisms, and to design new molecular additives
to increase the geometric uniformity of interconnects from the nanometer to wafer
length scales.
Biomedical/pharmaceutical
Applications include the modeling and design of biodegradable polymeric drug
delivery systems (in collaboration with Prof. D. Pack) and the formation of
high quality protein or pharmaceutical crystals from solution. For drug delivery,
our goal is to model the relationship between the polymer geometry, molecular
weight distribution, and microstructure to the release of drugs or growth factors,
and to use these models to optimally design drug delivery systems to achieve
a desired temporal and spatial release. In our crystallization effort, we are
developing an integrated approach to control crystal formation that includes
(i) simulating the nucleation, growth, and aggregation of crystals including
the effects of micro- and macromixing, (ii) utilizing video microscopy, laser
backscattering, ATR-FTIR, and Raman spectroscopy for the in-situ measurement
of the size, shape, and polymorphism of crystals during crystal formation, and
(iii) designing algorithms to control the properties of the product crystals.
Selected Publications
Z. Zheng, R. Stephens, R. D. Braatz, R. C. Alkire, and L. R. Petzold, "A hybrid multiscale kinetic Monte Carlo method for simulation of copper electrodeposition," Journal of Computational Physics, 227, 5184-5199 (2008).
C. T. M. Kwok, K. Dev, E. G. Seebauer, and R. D. Braatz, "Maximum a posteriori estimation of activation energies that control silicon self-diffusion," Automatica, 44, 10 (2008).
N. Nair, W.J. Kim, R.D. Braatz and M.S. Strano, "Dynamics of surfactant-suspended
single-walled carbon nanotubes in a centrifugal field," Langmuir, 24,
1790-1795 (2008)
J. G. VanAntwerp, A. P. Featherstone, R. D. Braatz, and B. A. Ogunnaike, "Cross-directional
control of sheet and film processes," Automatica, 43, 191-211 (2007).
G. X. Zhou, M. Fujiwara, X. Y. Woo, E. Rusli, H.-H. Tung, C. Starbuck, O. Davidson, Z. H. Ge, and R. D. Braatz, "Direct design of pharmaceutical antisolvent crystallization through concentration control," Crystal Growth & Design, 6, 892-898 (2006).
E. G. Seebauer, K. Dev, M. Y. L. Jung, R. Vaidyanathan, C. T. M. Kwok,
J. W. Ager, E. E. Haller, and R. D. Braatz, "Control of defect concentrations
within a semiconductor through adsorption," Physical Review Letters,
97, 055503 (2006).
X. Y. Woo, R. B. H. Tan, P. S. Chow, and R. D. Braatz, "Simulation
of mixing effects in antisolvent crystallization using a coupled CFD-PDF-PBE
approach," Crystal Growth & Design,
6, 1291-1303 (2006).
N. Nair, M. L. Usrey, W. J. Kim, R. D. Braatz, and M. S. Strano, "Estimation of the (n,m) concentration distribution of single-walled carbon nanotubes from photoabsorption spectra," Analytical Chemistry, 78, 7689-7696 (2006).
E. J. Hukkanen, J. A. Wieland, A. Gewirth, D. E. Leckband and R. D. Braatz, "Multiple-bond kinetics from single-molecule pulling experiments: Evidence for multiple NCAM bonds," Biophysical Journal, 89, 3434-3445 (2005).
