IBM Accidentally Broke Every Computer in America — The Tiny Chip That Fixed It All in 1965

In 1964, IBM made one of the biggest bets in computing history: System/360, a computer family designed to let businesses grow without completely replacing their software. But behind this massive project was a tiny component that nearly brought the whole thing to a halt. IBM chose Solid Logic Technology (SLT), a small ceramic hybrid circuit that IBM believed it could manufacture at enormous scale. When IBM pushed production from roughly 6 million modules in 1964 to 56 million in 1965, quality collapsed and a serious metallurgical bonding problem forced the company to stop production. The result? System/360 shipments were delayed by months, while IBM's engineers and research scientists raced to find a solution. This is the story of the tiny half-inch component that nearly broke IBM's $5 billion gamble — and how the company turned a manufacturing disaster into one of the greatest production achievements of the 1960s.