The Early effect in bipolar junction transistors is named after Jim Early, who first characterized it and published a paper on it in 1952.[1] The Early effect in bipolar junction transistors is due to an effective decrease in the base width because of the widening of the base-collector depletion region, resulting in an increase in the collector current with an increase in the collector voltage. The same type of length modulation in MOSFETs is also commonly referred to as Early effect.
Early was the first to make a transistor that would oscillate faster than "a thousand megacycles" (1 GHz), circa 1952, for which feat he won a bottle of Scotch whisky from John Robinson Pierce.
He also developed the transistors for America's first commercial communications satellite, the Telstar I.[2] He was elevated to IEEE Fellow.
In the early 1970s, Early led research for Fairchild Semiconductor, where he invented the vertical anti-blooming drain for CCD image sensors.
^J.M. Early, "Effects of space-charge layer widening in junction transistors", Proc. IRE, vol. 40, pp. 1401-1406 (1952).
^Early, James M. (1990). "Telstar I - Dawn of a New Age". Southwest Museum of Engineering, Communications and Computation. Retrieved 11 July 2012.
^"Pioneering engineer and inventor James Early dies". Associated Press. January 13, 2004. Retrieved 2012-09-25. James M. Early, an electrical engineer and inventor best known for his pioneering work with transistors, has died. He was 81. Early died Monday at a veteran's hospital in Palo Alto.
External links
Memorial page at Southwest Museum of Engineering, Communications and Computation
This article about an American electrical engineer is a stub. You can help Wikipedia by expanding it.
james, early, july, 1922, january, 2004, american, electrical, engineer, best, known, work, transistors, charge, coupled, device, imagers, also, known, early, born, 1922, july, 1922syracuse, yorkdiedjanuary, 2004, 2004, aged, palo, alto, health, care, systempa. James M Early July 25 1922 January 12 2004 was an American electrical engineer best known for his work on transistors and charge coupled device imagers He was also known as Jim Early James M EarlyBorn 1922 07 25 July 25 1922Syracuse New YorkDiedJanuary 12 2004 2004 01 12 aged 81 VA Palo Alto Health Care SystemPalo Alto CaliforniaBiography EditHe was born on July 25 1922 in Syracuse New York He received an MSE degree 1948 and his Ph D 1951 all from Ohio State University The Early effect in bipolar junction transistors is named after Jim Early who first characterized it and published a paper on it in 1952 1 The Early effect in bipolar junction transistors is due to an effective decrease in the base width because of the widening of the base collector depletion region resulting in an increase in the collector current with an increase in the collector voltage The same type of length modulation in MOSFETs is also commonly referred to as Early effect Early was the first to make a transistor that would oscillate faster than a thousand megacycles 1 GHz circa 1952 for which feat he won a bottle of Scotch whisky from John Robinson Pierce He also developed the transistors for America s first commercial communications satellite the Telstar I 2 He was elevated to IEEE Fellow In the early 1970s Early led research for Fairchild Semiconductor where he invented the vertical anti blooming drain for CCD image sensors He died on January 12 2004 at the VA Palo Alto Health Care System in Palo Alto California 3 References Edit J M Early Effects of space charge layer widening in junction transistors Proc IRE vol 40 pp 1401 1406 1952 Early James M 1990 Telstar I Dawn of a New Age Southwest Museum of Engineering Communications and Computation Retrieved 11 July 2012 Pioneering engineer and inventor James Early dies Associated Press January 13 2004 Retrieved 2012 09 25 James M Early an electrical engineer and inventor best known for his pioneering work with transistors has died He was 81 Early died Monday at a veteran s hospital in Palo Alto External links EditMemorial page at Southwest Museum of Engineering Communications and Computation This article about an American electrical engineer is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title James M Early amp oldid 1110870201, wikipedia, wiki, book, books, library,
