[PAR] [TLE] Point-contact transistor [SEP] A point-contact transistor was the first type of solid-state electronic transistor ever constructed.  It was developed by research scientists John Bardeen, William Shockley, and Walter Brattain at Bell Laboratories in December, 1947.  They worked in a group led by physicist William Shockley.  The group had been working together on experiments and theories of electric field effects in solid state materials, with the aim of replacing vacuum tubes with a smaller, less power-consuming device. [PAR] [TLE] John Bardeen [SEP] John Bardeen ( ; May 23, 1908 – January 30, 1991) was an American physicist and electrical engineer, the only person to have won 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 conventional superconductivity known as the BCS theory.
[PAR] [TLE] Point - contact transistor [ SEP ] A point - contact transistor was the first type of solid - state electronic transistor ever constructed . It was developed by research scientists John Bardeen , William Shockley , and Walter Brattain at Bell Laboratories in December , 1947 . They worked in a group led by physicist William Shockley . The group had been working together on experiments and theories of electric field effects in solid state materials , with the aim of replacing vacuum tubes with a smaller , less power - consuming device . [PAR] [TLE] John Bardeen [ SEP ] John Bardeen ( ; May 23 , 1908 – January 30 , 1991 ) was an American physicist and electrical engineer , the only person to have won 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 conventional superconductivity known as the BCS theory .
A point-contact transistor was the first type of solid-state electronic transistor ever constructed, it was developed by which American physicist, electrical engineer, and research scientist?
A point - contact transistor was the first type of solid - state electronic transistor ever constructed , it was developed by which American physicist , electrical engineer , and research scientist ?
John Bardeen
John Bardeen