Friday 12 March 2010

序曲

It was nearly 80 years ago, when J.E Lilienfield patented the first ever field effect transistor concept, namely “Method and Apparatus for Controlling Electric Currents” which evolved into the modern metal-oxide-semiconductor field effect transistor, MOSFET.


Lilienfield proposed a three terminal device where the source to drain current is controlled by a field effect from the gate and is dielectrically insulated from the rest of the device. The active part of the device was built on a thin semiconductor film deposited on an insulator.


Be it or not a coincidence, the first proposed FET was indeed, a semiconductor-on-insulator device.

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