Lam Research Corporation (LRCX) vs Taiwan Semiconductor Manufacturing Company Limited (TSM)

Lam Research Corp is one of the world’s leading manufacturers of semiconductor wafer fabrication equipment. The company specializes in deposition and etch technologies, which involve building layers on a semiconductor wafer and selectively removing patterns from each layer. Lam holds the leading market share in etch and ranks a clear second in deposition. It has greater exposure to memory chipmakers, particularly in DRAM and NAND. Its major customers include some of the world’s largest semiconductor companies, such as TSMC, Samsung, Intel, and Micron.

Taiwan Semiconductor Manufacturing Co. (TSMC) is the world’s largest pure-play semiconductor foundry, holding roughly 70% market share in 2025. Founded in 1987 as a joint venture between Philips, the Taiwan government, and private investors, the company listed in Taiwan in 1994 and later launched its US ADR in 1997. TSMC’s vast scale and advanced manufacturing capabilities support strong operating margins, even within the highly competitive foundry industry. The ongoing shift toward the fabless semiconductor model has also provided meaningful growth tailwinds. Its distinguished customer base includes Apple, AMD, and Nvidia, which rely on TSMC’s leading-edge process technologies for their chip designs. The company employs more than 83,000 people.