A company founded in 1979 by Gene Amdahl to commercialize wafer scale integration and build supercomputers. It raised a quarter of a billion dollars, the largest startup funding in history, but could not create its 2.5" superchip. In 1984, it abandoned supercomputer development and later the superchip project. In 1985, Trilogy acquired Elxsi Corporation, a manufacturer of VAX-compatible systems, and eventually merged itself into Elxsi.
The Trilogy Superchip
The 2.5" square superchip was never completed, because it was far ahead of its time. Although chips from several semiconductor manufacturers have subsequently increased in size, there is no single chip as large as the Trilogy Superchip. (Image courtesy of Elxsi Corporation.)