![Brattain [Credit: Courtesy of AT&T Bell Laboratories/AT&T Archives]](http://images.bookrags.com/images/eb/13112.gif)
Brattain [Credit: Courtesy of AT&T Bell Laboratories/AT&T Archives](born Feb. 10, 1902, Amoy, China—died Oct. 13, 1987, Seattle, Wash., U.S.) American scientist who, along with
John Bardeen and
William B. Shockley, won the Nobel Prize for Physics in 1956 for his investigation of the properties of semiconductors—materials of which transistors are made—and for the development of the transistor. The transistor replaced the bulkier vacuum tube for many uses and was the forerunner of microminiature electronic parts.
Brattain earned a Ph.D.
from the University of Minnesota, and in 1929 he became a research physicist for Bell Telephone Laboratories. His chief field of research involved the surface properties of solids, particularly the atomic structure of a material at the surface, which usually differs from its atomic structure in the interior. He, Shockley, and Bardeen invented the transistor in 1947. After leaving Bell Laboratories in 1967, Brattain served as adjunct professor at Whitman College, Walla Walla, Wash. (1967–72), then was designated overseer emeritus. He was granted a number of patents and wrote many articles on solid-state physics.
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