Walter H. Brattain

  • Walter H. Brattain was born

    Walter H. Brattain was born
    He was born in China-Amoy
  • Earned his B.S. degree

    Earned his B.S. degree in physics and mathematics at Whitman College in Walla Walla, Washington.
  • Earned his M.A. degree

    Earned his M.A. degree from the University of Oregon
  • Ph.D. degree & Jobs

    Ph.D. degree & Jobs
    He earned his Ph.D. degree in physics at the University of Minnesota, worked at the National Bureau of Standards in Washington, D.C. then was hired by Bell Telephone Laboratories
  • New Contract

    "During World War II Brattain devoted his time to developing methods of submarine detection under a contract with the National Defense Research Council at Columbia University" (biography, 1).
  • Joined the semiconductor division

    He returned to Bell Laboratories and then joined the semiconductor division of the newly-organized Solid State Department of the laboratories.
  • Brattain's device was made

    Brattain's device was made
    "Brattain constructed the two contacts by wrapping gold tape around the point of a wedge of polystyrene and scraping the gold away from the point of the wedge. The wedge was then pressed against a block of n-type germanium...the device was incorporated into a small amplifier that had a gain of more than 18 and good frequency response" (Biography, 2).
  • Public Announcement

    Public Announcement
    After the invention being complete, a week later the amplifier was shown to the staff of Bell Laboratories and was approved. They held off the public announcement until June,1948.
  • Received the Stuart Ballantine Medal

    For his invention, Brattain had also received the Stuart Ballantine Medal.
  • Received the honorary Doctor of Science degree

    Dr. Brattain received the honorary Doctor of Science degree from Portland University in 1952
  • Received the John Scott Medal

    Received the John Scott Medal
    Following his Stuart Ballantine Medal he then also received the John Scott Medal.
  • Received the honorary Doctor of Science degree

    He also received the honorary Doctor of Science degree from Whitman College and Union College.
  • Awarded Nobel Prize in Physics

    Awarded Nobel Prize in Physics
    Brattain along with Bardeen, and Shockley got awarded the1956 Nobel Prize in Physics for their invention.
  • Received the honorary Doctor of Science degree

    Again, Brattain received the honorary Doctor of Science degree from the University of Minnesota
  • Elected to the National Academy of Sciences

    Brattain was then elected to the National Academy of Sciences
  • Retired

    Brattain continued his path at Bell Laboratories with semiconductor research until he retired in 1967
  • Death

    Death
    Brattain died in Seattle on October 13, 1987