Search results
Results From The WOW.Com Content Network
The first transistor was successfully demonstrated on December 23, 1947, at Bell Laboratories in Murray Hill, New Jersey. Bell Labs was the research arm of American Telephone and Telegraph (AT&T). The three individuals credited with the invention of the transistor were William Shockley, John Bardeen and Walter Brattain. The introduction of the ...
The first bipolar junction transistors were invented by Bell Labs' William Shockley, who applied for patent (2,569,347) ... MOS transistors every year, [89] ...
Discrete transistors were a feature of logic design for computers from about 1960, when reliable transistors became economically available, until monolithic integrated circuits displaced them in the 1970s. The list is organized by operational date or delivery year to customers. Computers announced, but never completed, are not included.
1947: The first transistor, a bipolar point-contact transistor, is invented by John Bardeen and Walter Brattain under the supervision of William Shockley at Bell Labs. 1948: The first atomic clock is developed at the National Bureau of Standards. 1948: Basic oxygen steelmaking is developed by Robert Durrer. The majority of steel manufactured in ...
In 1962–1963, when these companies have adopted the planar process, the Westinghouse engineer Hung-Chang Lin invented the lateral transistor. In the usual planar process, all transistors have the same conductivity type, typically n-p-n, whereas the invention by Lin allowed creation of n-p-n and p-n-p transistors on one chip. [115]
The first practical transistor was the point-contact transistor, invented by the engineers Walter Houser Brattain and John Bardeen while working for William Shockley at Bell Labs in 1947. This was a breakthrough that laid the foundations for modern technology. [2] Shockley's research team also invented the bipolar junction transistor in 1952.
John Bardeen (/ b ɑːr ˈ d iː n /; May 23, 1908 – January 30, 1991) [2] was an American mathematical physicist and electrical engineer.He is the only person to be awarded the Nobel Prize in Physics twice: first in 1956 with William Shockley and Walter Brattain for the invention of the transistor; and again in 1972 with Leon N. Cooper and John Robert Schrieffer for a fundamental theory of ...
Vacuum tubes remained the preferred amplifying device for 40 years, until researchers working for William Shockley at Bell Labs invented the transistor in 1947. In the following years, transistors made small portable radios, or transistor radios, possible as well as allowing more powerful mainframe computers to be built. Transistors were ...