Founded in 1957 as a division of Fairchild Camera and Instrument by the treacherous 8 (Gordon Moore, Sheldon Roberts, Eugene Kleiner, Robert Noyce, Victor Grinich, Julius Blank, Jean Hoerni, Jay Last), it was a pioneer in transistor and integrated circuit manufacturing. It was bought by Schlumberger in 1979 and then sold to National Semiconductor in 1987. Fairchild was spun off as an independent company again in 1997. In 2016 they were acquired by ON Semiconductor for $2.4B in cash.
All of the founders had previously worked for Shockley Labs and left on-mass to form Fairchild Semiconductor.