DIED. Robert Noyce, 62, co-inventor of the integrated circuit and a founder of Intel Corp., whose microprocessors dominate the personal-computer industry; of a heart attack; in Austin. Noyce's microchips permitted an electronic miniaturization that, in addition to personal computers, led to such commonplace wonders as pocket calculators, video games and antilock brakes. After a 32-year career pioneering the development of California's Silicon Valley, Noyce moved in 1988 to Austin to head Sematech, a government and industry research consortium working to keep the U.S. apace with Japan in semiconductor manufacturing technology.