Lam Research

Lam’s durable advantage rests on process know‑how in plasma etch and thin‑film deposition, deep co‑development ties, and an expanding installed base that raises switching costs.

Evidence includes sustained 50 percent gross margin at scale, record CSBG revenue and an installed base of about 102,000 chambers that increases upgrade and spares intensity as device architectures grow more complex.

Competitive context is an oligopoly across etch and deposition where Applied Materials, Tokyo Electron, Screen and others contest share, but qualification barriers are high once a tool is integrated at a node.

Component scores and weights: Switching costs 90/100 (weight 30 percent) due to node‑level qualifications and process reuse across generations; Efficient scale 85/100 (weight 25 percent) given the concentrated WFE oligopoly and long product cycles; Intangible assets 80/100 (weight 20 percent) from IP portfolios and application libraries documented across product families like Vantex, Kiyo, ALTUS and SABRE; Cost advantage 75/100 (weight 15 percent) from learning‑curve and factory efficiency improvements; Network effects 55/100 (weight 10 percent) since collaboration ecosystems help but do not create classical user‑to‑user effects.

Weighted average yields approximately 84. Key erosion paths: competitor share gains at inflections, customer insourcing, or export rule changes that redirect demand or empower local competitors.