Semiconductors sit underneath almost every major technology trend, but the companies that make up the industry do very different jobs. Nvidia and AMD design processors. Taiwan Semiconductor Manufacturing Company manufactures chips for customers. ASML sells the lithography machines needed to produce the most advanced semiconductors. Broadcom combines chip design with infrastructure software.
That division of labour makes simple comparisons difficult. Revenue growth at a fabless designer can accelerate without the company building a new factory, while a foundry may need tens of billions of dollars in capital expenditure to support the same demand cycle.
The leading designers
Nvidia, Broadcom, AMD, Qualcomm, Texas Instruments, MediaTek and Marvell are among the best-known designers. Their exposures vary widely. Nvidia is heavily tied to data-centre accelerators. Qualcomm is central to mobile communications. Texas Instruments has a broad analogue portfolio used across industrial and automotive products.
Design businesses can generate high margins when they own valuable intellectual property, but they still depend on manufacturing partners and advanced packaging capacity. That dependency became more visible as AI demand tightened supply for high-end accelerators and memory.
Foundries and memory companies carry the capital burden
TSMC is the industry's dominant pure-play foundry, producing chips for many of the world's largest designers. Samsung Electronics operates both foundry and memory businesses, while SK Hynix has become increasingly important in high-bandwidth memory used in AI systems. Micron is another major memory producer.
These businesses require enormous investment in fabrication plants and equipment. Their competitive position depends on process technology, yields and the ability to bring new capacity online without destroying returns during weaker parts of the cycle.
Equipment suppliers are part of the same investment case
ASML, Applied Materials, Lam Research and KLA do not sell processors, but they are indispensable to advanced semiconductor manufacturing. Their order books provide another way to track the industry's capital-spending cycle.
ASML is unique because its extreme ultraviolet lithography systems are required for leading-edge production. Applied Materials and Lam Research supply a broader range of wafer-fabrication tools, while KLA is a leader in process control and inspection.
How investors compare semiconductor stocks
Investors should separate structural growth from the normal semiconductor cycle. AI infrastructure can create long-term demand while inventories, smartphone sales and memory pricing still move through shorter cycles. A company can be strategically important and still experience sharp earnings volatility.
Useful measures include gross margin, free cash flow, capital expenditure, customer concentration and inventory. For foundries, utilisation and process leadership matter. For designers, product roadmaps and software ecosystems can be just as important as unit volumes.