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Jewell James Ebers

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Title: Jewell James Ebers  
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Subject: Bipolar junction transistor
Collection: 1921 Births, 1959 Deaths, American Electrical Engineers, United States Army Soldiers
Publisher: World Heritage Encyclopedia

Jewell James Ebers

Jewell James Ebers was an American electrical engineer who is remembered for the mathematical model of the bipolar junction transistor that he published with John L. Moll in 1954. The Ebers-Moll model of the transistor views the transistor as a pair of diodes, and the model is a fusion of the models of these diodes.

J.J. Ebers was born in Grand Rapids, Michigan on November 25, 1921. He served three years in the U.S. Army. Ebers attended Antioch College where he obtained a bachelor of science degree in 1946. He entered Ohio State University studying electrical engineering, obtaining his master's degree in 1947 and Ph.D. in 1950. Ebers continued at Ohio State as a research associate in the university's research foundation, as an instructor, and as an assistant professor until 1951.[1]

In September 1951 Ebers joined Bell Labs in Murray Hill, New Jersey. There he worked with J.L. Moll with whom he published the frequently-cited article[2] on "Large-signal behavior of junction transistors" which is the basis of the Ebers-Moll model. According to James M. Early, Ebers' technical contributions, qualities of personal leadership, and management skill led to promotions to supervisor, department head, and Director of the Allentown Lab of Bell.[3]

Ebers was a member of Eta Kappa Nu, Sigma Xi, and the American Physical Society. Jewell James Ebers died in March, 1959.[4]

As a memorial to his scientific work, every year the IEEE Electron Devices Society grants the J J Ebers Award to a worthy engineer.


  1. ^ Institute of Radio Engineers (1952), JJ Ebers, Proceedings of the I.R.E., page 1606, weblink to IEEE Xplore Digital Library
  2. ^ J.J. Ebers & J.L Moll (1954) "Large-signal behavior of junction transistors", Proceedings of the Institute of Radio Engineers 42(12):1761–72
  3. ^ James M. Early (September 1971) Announcement: Electron Devices Group Award Established, IEEE Transactions on Electron Devices, volume ED 18, No. 9, page 613
  4. ^ New York Times (1 April 1959) "J. James Ebers, engineer, was 37"
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