Multiple choice general knowledge In which decade was the first solid state integrated circuit demonstrated? 1950s 1986s 1970s 1960s Reveal answer Fill a bubble to check yourself A Correct answer Explanation Jack Kilby demonstrated the first working integrated circuit at Texas Instruments in 1958, which falls in the 1950s decade. This revolutionary invention earned Kilby the Nobel Prize in Physics in 2000 and paved the way for modern microelectronics.