Rolltronics Corporation and its partner, Iowa Thin Film Technologies, envision building integrated circuits in a process as simple as printing a newspaper.

The two companies recently demonstrated the world’s first working silicon transistors made using a radical new “roll-to-roll” manufacturing technique. In this process, a continuous sheet of flexible polymer is unrolled from one spool, covered with circuit-board-like patterns of silicon, and collected on another spool.
More Here