How Jack Kilby’s 1958 Breakthrough Launched the Integrated Circuit Revolution

Jack Kilby was born in 1923 in Missouri, was an average student and amateur radio enthusiast, missed admission to MIT, and served as a radio communications engineer during World War II, working across China.

After the war he returned to university, earned a B.S. in electrical engineering in 1947, worked at Globe Union, and in 1958 joined Texas Instruments.

At Texas Instruments he recognized the "Tyranny of numbers"—the difficulty of manually wiring countless discrete components—and proposed using a single semiconductor material (silicon) to integrate resistors, capacitors, diodes, and transistors on one chip.

On July 24 1958 he wrote in his notebook that a tiny circuit composed of many devices could be fabricated on a single piece of silicon, and he built a crude prototype that generated a sine wave.

The demonstration impressed TI executives and marked the first integrated circuit, although it initially attracted little attention.

The integrated circuit soon proved crucial for the 1960s Apollo moon program, driving massive demand and causing prices to drop from $32 to $1.2 per chip by 1971.

Kilby later invented handheld calculators and thermal printers, received numerous honors, and in 2000 was awarded the Nobel Prize in Physics for laying the foundation of the information age.

A decade‑long patent dispute with Fairchild over who first conceived the integrated circuit ended in a cross‑licensing agreement, cementing the transition to the "silicon civilization" that underpins modern electronics.