Today in
Computer History

Tuesday, August 27, 1963
The Electric Field Controlled Semiconductor Device patent is granted
This device, commonly known as a MOSFET or simply, MOS, is a building block for CMOS, which in turn is the basis for producing integrated circuits. The idea behind the MOSFET goes back as far as 1925, but it took many years of research to come up with the working version in the late 1950s and finally a patent on this date in 1963.