Signed js kilby the page in his notebook is dated sept. Clair kilby november 8 1923 june 20 2005 was an american electrical engineer who took part along with robert noyce in the realization of the first integrated circuit while working at texas instruments ti in 1958. Traces Of Texas The First Integrated Circuit Invented By Sos Calendar Of Interesting Facts From History Of Technic Ic Circuit Design Services Analog Ic Design Home Texas instruments first ic. 1958 first integrated circuit . The first ic built in 1958 was a phase shift oscillator. Then first implemented by jack kilby on august 28 1958 who wire bonded 3 transistors together into what today would be called a system in a package sip it wasnt until robert noyce merged jean hoernis planar process with the idea that the modern integrated circuit was invented. Texas instruments first used the chips in