Silicon microchips are the unseen engines behind modern civilisation, powering everything from medical imaging equipment to advanced computing. Yet manufacturing these devices requires extraordinary precision and scale. Taiwan Semiconductor Manufacturing Company (TSMC) pioneered the dedicated foundry model in 1987, manufacturing chips solely for other companies rather than designing its own. This lowered barriers to entry, enabling a boom in innovation. Today, TSMC produces 90 per cent of the world's advanced semiconductors, a dominance that also carries important geopolitical and national security considerations. Many people were initially sceptical of the foundry model, but Morris Chang—TSMC’s founder—persisted. While early customers were mostly large semiconductor companies like Intel, over time, TSMC’s neutrality attracted fabless start-ups like Nvidia and Qualcomm, who wanted a reliable manufacturing partner that wouldn’t compete against them. When Apple enlisted TSMC to make the iPhone processors, it cemented the company’s position as a leading semiconductor business and validated Chang’s original vision. TSMC’s success proves that customer-centricity, employee loyalty, and long-term thinking can generate outsized financial returns while contributing to social and technological progress.