Walter H. Schottky
Walter Hermann Schottky (23 July 1886, Zürich, Switzerland – 4 March 1976, Pretzfeld, West Germany) was a German physicist who played a major early role in developing the theory of electron and ion emission phenomena, invented the screen-grid vacuum tube in 1915 and the pentode in 1919 while working at Siemens, co-invented the Ribbon microphone and Ribbon Loudspeaker along with Dr. Gerwin Erlach in 1924 and later made many significant contributions in the areas of semiconductor devices, technical physics and technology.
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Famous quotes containing the word walter:
“And they be these: the wood, the weed, the wag.
The wood is that which makes the gallow tree;
The weed is that which strings the hangman’s bag;”
—Sir Walter Raleigh (1552?–1618)