Leon O. Chua

Leon O. Chua[1]
Born Leon Ong Chua
(1936-06-28) June 28, 1936
Citizenship United States
Fields Electrical Engineering
Electronics and Communication Engineering
Computer Science
Institutions University of California, Berkeley
Alma mater Mapúa Institute of Technology
Massachusetts Institute of Technology
University of Illinois, Urbana-Champaign
Doctoral advisor Mac Van Valkenburg
Doctoral students See: Ph.D. Dissertations supervised by Chua
Known for Nonlinear circuit theory
Cellular neural networks
Chua's circuit
Chaotic digital CDMA
Notable awards

IEEE Browder J. Thompson Memorial Prize Award(1967)
IEEE W.R.G. Baker Prize Paper Award (1973)
IEEE Guillemin-Cauer Award (1972, 1985, 1989)
M. E. Van Valkenburg Award (1995 and 1998)
IEEE Neural Networks Pioneer Award (2000)
IEEE Gustav Robert Kirchhoff Award (2005)
IEEE Circuits and Systems Society Vitold Belevitch Award (2007)

Guggenheim Fellowship (2010)
Children Amy, Michelle, Katrin, Cynthia

Leon Ong Chua (/ˈwɑː/; Chinese: 蔡少棠; pinyin: Cài Shǎotáng; Wade–Giles: Ts'ai Shao-t'ang; Pe̍h-ōe-jī: Chhòa Siáu-tông; born June 28, 1936) is an American electrical engineer and computer scientist. He is a professor in the electrical engineering and computer sciences department at the University of California, Berkeley, which he joined in 1971. He has contributed to nonlinear circuit theory and cellular neural network (CNN) theory.[2] He is also the inventor and namesake of Chua's circuit[3] one of the first and most widely known circuits to exhibit chaotic behavior, and was the first to conceive the theories behind, and postulate the existence of, the memristor.[4] Thirty-seven years after he predicted its existence, a working solid-state memristor was created by a team led by R. Stanley Williams at Hewlett Packard.[5][6]

Early life and education

A first-generation Chinese-American, Chua and his twin sister grew up as members of the Chinese ethnic minority in the Philippines[7] under the reign of the Empire of Japan during World War II. Of Hoklo ancestry, his parents immigrated from Fujian province.[8] He earned his BSEE degree from Mapúa Institute of Technology in Manila, Philippines in 1959. He briefly taught at Mapúa for a year,[9] before emigrating to the United States on a scholarship to the Massachusetts Institute of Technology, where he earned an MSEE degree in 1961. He then earned a Ph.D from the University of Illinois, Urbana-Champaign in 1964. His PhD thesis was entitled Nonlinear Network Analysis—The Parametric Approach. Over the ensuing years, he has received eight honorary doctorates.

Chua has four daughters; the eldest, Amy Chua (a Professor of Law at Yale University.[7]), Michelle, Katrin (a Professor of Medicine at Stanford University), and Cynthia (Cindy, a Special Olympics Gold medalist). In addition to his four daughters, Chua has seven grandchildren.1


Chua was a member of the faculty at Purdue University from 1964 to 1970 before joining Berkeley in 1971. His current research interests include cellular neural/nonlinear networks, nonlinear circuits and systems, nonlinear dynamics, bifurcation theory, and chaos theory. He was the Editor of The International Journal of Bifurcation and Chaos until 2009, and is now the Honorary Editor of this journal.

Awards and honors


  1. Some of IEEE publications of Professor Leon Chua
  2. Chua, L.O. (October 1988). "Cellular neural networks: theory". IEEE Transactions on Circuits and Systems. IEEE. CAS-35 (10): 1257–1272.
  3. Matsumoto, Takashi (December 1984). "A Chaotic Attractor from Chua's Circuit" (PDF). IEEE Transactions on Circuits and Systems. IEEE. CAS-31 (12): 1055–1058. Retrieved 2008-05-01.
  4. Chua, Leon O. (September 1971). "Memristor - The Missing Circuit Element" (PDF). IEEE Transactions on Circuits Theory. IEEE. 18 (5): 507–519. doi:10.1109/TCT.1971.1083337. Retrieved 2008-05-01.
  5. "'Without Chua's circuit equations, you can't make use of this device,' says Williams. " Sally Addee (May 2008). "The Mysterious Memristor". IEEE Spectrum.
  6. R. Colin Johnson (2008-04-30). "'Missing link' memristor created: Rewrite the textbooks?". EE Times.
  7. 1 2 "Lance Morrow (2007-09-18). "How to Rule the World". New York Times.
  8. Chua, Amy (2011). Battle Hymn of the Tiger Mother. Penguin Press. p. 14. ISBN 978-1-59420-284-1.
  9. ""Mapua Salutes Alumnus". Philippine Daily Inquirer. 2003-01-24.
  10. Jorge Luis Moiola (2001). "Bifurcation Control: Methodologies and Applications" (PDF). Latin American Applied Research.
  12. "IEEE Browder J. Thompson Memorial Prize Award Recipients" (PDF). IEEE. Retrieved December 26, 2010.
  13. "Guillemin-Cauer Award". IEEE.
  14. "IEEE W.R.G. Baker Prize Paper Award Recipients" (PDF). IEEE. Retrieved December 25, 2010.
  15. "3.1 Leon Chua receives IEEE Gustav Robert Kirchhoff Award". IEEE Control Systems Society. May 2005.
  16. "IEEE Gustav Robert Kirchhoff Award Recipients" (PDF). IEEE. Retrieved May 31, 2011.
  17. "2007 Awards" (PDF). IEEE Circuits and Systems Society.

External links

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