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Walter Houser Brattain

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  1. Walter Houser Brattain By: Alex Davis

  2. Information • Born in Amoy, China • Born on: February 10, 1902 • He died on October 13, 1987. • Died of Alzheimer’s at age 85.

  3. Degrees • M.S from Whitman College in 1924 • M.A from Univ. of Oregon in 1926 • Ph.D from Univ. of Minnesota in 1929

  4. Employment • First job was as a radio engineer • 1929 - Brattain began working for Bell Laboratories

  5. Bell Labs • Walter Brattain and John Bardeen worked closely together • Concentrated research on the surface properties of solids

  6. His research included: • the thermionic emission and absorbed layers on tungsten • & •  rectification and photo-effects on the semiconductor surfaces • of cuprous oxide, silicon, and germanium

  7. The Transistor • Much discussion on how much credit Shockley deserved • Was invented on December 23, 1947 by Brattain, Bardeen, and Shockley

  8. Origin of of the word transistor • The name transistor comes from the words: • 'trans' of transmitter  • & • 'sistor' of resistor.

  9. Definition of transistor • A device composed of semiconductor material that amplifies • a signal or opens or closes a circuit • transistors have become the major component in all  • digital circuits, including computer microprocessors which now contain • millions of microscopic size transistors.

  10. "The only regret I have about the transistor is its use for rock and roll" • Walter Brattain in reference to the transistor radio

  11. Main Awards • 1952 Stuart Ballantine Medal of the Franklin Institute • 1955 Scott Medal • 1956 Nobel Prize Physics • Co-winners William Shockley, John Bardeen -invention - transistor

  12. Bibliography • "Walter H. Brattain." The Official Web Site of the Nobel Foundation. Web. 22 Feb 2010. http://nobelprize.org/nobel_prizes/physics/laureates/1956/brattain-bio.html • Bellis, Mary. "Walter Brattain." About. The New York Times Company, Web. 24 Feb 2010. http://nobelprize.org/nobel_prizes/physics/laureates/1956/brattain-bio.html