When was the transistor that won the Nobel Prize for research on semiconductors and discovery of the transistor effect created?
Walter Houser Brattain Walter Houser Brattain ( ; February 10, 1902 – October 13, 1987) was an American physicist at Bell Labs who, along with fellow scientists John Bardeen and William Shockley, invented the point-contact transistor in December 1947. They shared the 1956 Nobel Prize in Physics for their invention. Brattain devoted much of his life to research on surface states.
Tetrode transistor A tetrode transistor is any transistor having four active terminals.