The first patent[1] for the field-effect transistor principle was filed in Canada by Austrian-Hungarian physicist Julius Edgar Lilienfeld on October 22, 1925, but Lilienfeld published no research articles about his devices, and they were ignored by industry. In 1934 German physicist Dr. Oskar Heil patented another field-effect transistor[2]. There is no direct evidence that these devices were built, but later work in the 1990s show that one of Lilienfeld's designs worked as described and gave substantial gain. Legal papers from the Bell Labs patent show that Shockley and Pearson had built operational versions from Lilienfeld's patents, yet they never referenced this work in any of their later research papers or historical articles. [3][4]Further, if you take a look at the talk page, you get this detail, with a dead link..
According to Bell System Memorial there were accounts in British magazines from the 1910s about Russian ship board operators achieving gain from "cat's whisker" diodes with two whiskers.However, the internet archive does have a copy of the Bell System Memorial article on the history of the transistor:
It was in 1906 that the G.W. Pickard of Amesbury, Massachusetts perfected the crystal detector and in November of that year took out a patent for the use of silicon in detectors. Arguably this was the start of the silicon revolution and it did not take long before experimenters achieved amplification using crystal devices, long before the term transistor was devised.
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posted by TheophileEscargot at 4:29 AM on August 28, 2008