Why are Semiconductors Important? - Semiconductor Industry Association WSTS Login Contact Why are Semiconductors Important? Semiconductors are a marvel of modern technology and the foundation of our digital world. The chips powering modern smartphones contain more than 15 billion transistors, each smaller than a virus and capable of switching on and off billions of times per second. The semiconductors at the heart of today’s AI data centers can contain hundreds of billions of transistors, a number so high that if you counted one transistor per second, it would take more than 6,000 years to count all the transistors on a single chip. Accelerating the Innovation Flywheel This foundational technology is the hidden force driving modern innovation – and a testament to the wonder of advanced semiconductor research, design, and manufacturing. Semiconductors power everything from smartphones and laptops to cars and medical devices, impacting most industries around the world. They kicked off a virtuous cycle of innovation whereby incremental improvements created more computing power, which fuels the next generation of breakthroughs. Improving the Quality of Life Semiconductors are all around us. They control the computers we use to conduct business, the phones and mobile devices we use to communicate, the cars and planes that get us from place to place, the machines that diagnose and treat illnesses, the military systems that protect us, and the electronic gadgets we use to listen to music, watch movies, and play games, just to name a few. And not only does semiconductor technology make these devices possible, it also makes them more compact, less expensive, and more powerful. For example, in 1984, mobile phones weighed about 2 lbs., cost around $4,000, and held a charge for only about 30 minutes of talk time. Enabling Productivity Semiconductors amplify human productivity by enabling automation, enhancing communication, and simplifying cognitively difficult tasks—all while lowering cost, footprint, and energy use. 1101 K Street NW Suite 450, Washington, DC 20005 E-mail Sign up for SIA News © 2026 Semiconductor Industry Association. All Rights Reserved.