Historical Marker

Demonstration of the First Working Integrated Circuit

Dallas, Dallas County · Texas
Erected 1988

The idea came in an empty lab in July 1958. Kilby, hired by Texas Instruments that May, had earned no vacation, so he worked alone while colleagues left for the summer. The Handbook of Texas says he reached what he called the monolithic idea: make every component and the base from one piece of semiconductor. The crude, hand-wired prototype passed its test on September 12, 1958. Robert Noyce of Fairchild arrived at the same idea in January 1959, and the patent went to Noyce after years of appeals. Kilby won the 2000 Nobel Prize in Physics and credited Noyce.

What the plaque says

Demonstration of the First Working Integrated Circuit The twentieth-century age of electronics can trace its roots to the 1906 invention of the triode vacuum tube, which marked the birth of modern radio. The invention of the transistor after World War II ushered in a new era of solid-state electronics. As engineers designed increasingly complex equipment, the difficulty of interconnecting large numbers of individual transistors and other components to form electronic circuits was a barrier to further progress. The need arose for a reliable, cost-effective way to produce and interconnect the components. Technical research groups in the United States and abroad began work on the problem. In 1958, Jack St. Clair Kilby, an engineer at Texas Instruments (TI) in Dallas, designed and built an integrated circuit with all the components formed in a single piece of semiconductor material. On September 12, 1958, he demonstrated this first working integrated circuit to TI personnel in the semiconductor building on this site. This conceptual breakthrough and work elsewhere led to development of the microchips that are at the core of modern electronic products, including a broad range of consumer electronics, digital computers, defense systems, and global communications networks. (1988)

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32.93238, -96.75343 · Directions

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