What it does
Lam Research is a global supplier of wafer-fabrication equipment and services to semiconductor manufacturers. Founded in 1980, it is headquartered in Fremont, California. It sells to memory-chip makers, foundries that manufacture chips for other companies, and integrated device manufacturers that design and make their own chips.
Its tools perform repeated steps in making many chips on a silicon wafer. Deposition tools add insulating or conducting films; etch tools selectively remove material to create chip features; and clean tools remove particles, residues and contaminants between manufacturing steps. These processes must work with increasingly complex materials and structures at very small dimensions.
The portfolio also serves wafer-level and panel-level packaging, including processes used to connect and stack chips, and applications such as high-bandwidth memory. Its Aether dry-resist systems support EUV patterning, using gas-phase deposition and dry development rather than conventional wet-spin processing.
The Customer Support Business Group supplies spares, upgrades, services, equipment-intelligence software and new or refurbished non-leading-edge deposition, etch and clean equipment. These offerings are intended to improve uptime, throughput, defect reduction and the useful life of customers’ installed tools.
Lam had 23,300 regular full-time employees as of August 4, 2026; more than 26% worked in research and development.
How it makes money
Lam generates revenue primarily by selling and servicing semiconductor-manufacturing equipment. Systems revenue covers new leading-edge equipment for deposition, etch, clean and other wafer-fabrication processes. Customer support-related revenue includes services, spare parts, upgrades and non-leading-edge equipment sold through the Reliant product line.
Systems sales are project-driven: customer demand depends on investment in wafer-fabrication capacity, technology transitions and the need for particular production tools. System and spare-parts revenue is generally recognized when equipment is shipped or delivered. Service revenue is recognized as work is completed or ratably over contracts that are generally one year or less.
The product portfolio spans metal and dielectric deposition, conductor and dielectric etch, wafer and bevel cleaning, deep silicon etch, selective etch, dry resist and advanced packaging. Customers can buy upgrades that bring newer technical capabilities to existing production lines, rather than replacing entire tools. The support business also sells fleet-level Equipment Intelligence solutions, spares and refurbished systems, giving Lam sources of revenue after the initial system installation.
Latest reported periods: fiscal 2026 revenue increased 26.0% from fiscal 2025; September-quarter revenue was $8.22 billion. Systems revenue increased by $3.39 billion, or 29.5%, in fiscal 2026, while customer support-related revenue increased by $1.40 billion, or 20.2%.
Management said on the call that Customer Support Business Group revenue was nearly $2.5 billion in the September quarter, with growth across upgrades, spares and services.
Customers and how it sells
Lam’s customers are semiconductor memory manufacturers, foundries and integrated device manufacturers. Its significant fiscal-2026 customers included Micron Technology, Inc., Samsung Electronics Company, Ltd., SK hynix Inc. and Taiwan Semiconductor Manufacturing Company. Four individual customers accounted for 16.0%, 15.0%, 12.0% and 12.0% of fiscal-2026 revenue, respectively.
Sales, marketing and service teams work directly with individual customers’ engineers on wafer-processing requirements. Lam maintains service engineers in the United States, China, Europe, India, Japan, Korea, Southeast Asia and Taiwan. Revenue is assigned geographically according to the location of the customer facility receiving the products or services.
A significant portion of revenue comes from outside the United States. In the September quarter, China contributed 35% of total revenue, Korea 20% and Taiwan 18%. Management said on the call that China’s share of revenue was expected to be significantly lower in the December quarter than in September, driven by domestic Chinese customers, while multinational customers in China were expected to remain reasonably strong.
In the September quarter, memory and foundry each represented 46% of systems revenue, while Logic and Other represented 8%.
Suppliers and costs
Lam mainly assembles and tests components, sub-assemblies and modules, then integrates them into finished systems before shipment to, or at, customer sites. This work is conducted predominantly in cleanroom environments. It also outsources parts of manufacturing, production warehousing and logistics, which can provide flexibility to scale operations.
Some components and sub-assemblies are available from only one supplier. Lam is seeking and qualifying alternatives for certain items and sometimes holds inventory above immediate need to protect against supply challenges. Supplier or outsource-provider failures, limited capacity and constrained access to materials or components can delay deliveries, raise costs or prevent order fulfillment.
Employee-related costs, R&D supplies, manufacturing inputs and tariffs affect the cost structure. Fiscal-2026 gross margin benefited from customer mix but was partly offset by aluminum- and steel-tariff-related spending. Fiscal-2026 R&D expense increased partly because of $131.4 million in employee-related costs and $69.8 million in engineering supplies.
Management said on the call that certain supply-chain constraints reduced December-quarter revenue guidance and that Lam was building inventory for expected demand.
- Revenue$23.2B
- Cost of revenue−$11.5B
- Research and development−$2.4B
- Selling, general and administrative−$1.1B
- Operating income$8.2B
Competitive position
Lam competes globally in semiconductor capital equipment, where customers assess process performance, productivity, defect control, support and total cost of ownership. Once a semiconductor manufacturer qualifies a supplier’s equipment for a particular production application and technology node, it generally retains that selection while the equipment performs to specification. That qualification process can make it difficult for Lam to win business where a competitor’s tools are already installed.
Applied Materials, Inc. is Lam’s primary competitor in dielectric and metals deposition and is also a primary etch competitor. ASM International and Wonik IPS compete in ALD and PECVD. Hitachi, Ltd. and Tokyo Electron, Ltd. compete in etch; Tokyo Electron also competes in wet clean, alongside Screen Holding Co., Ltd. and Semes Co., Ltd. Lam also faces third-party spare-parts providers.
Lam invests in R&D, product enhancements, service coverage and a portfolio spanning deposition, etch and clean. It has a global installed base and combines hardware, process, materials, software and process control. Management said on the call that multiple chip makers are adopting Akara, and that Aether systems are ramping in high-volume HBM manufacturing.
Our reading: Customer qualification and the installed base are meaningful switching barriers because new capital equipment requires substantial investment to qualify and integrate, although qualified competitors can protect their own positions too.
Our reading: Lam’s R&D, multi-process portfolio and service organization are differentiated capabilities, but their strength depends on continuing product performance and timely development as competitors introduce alternatives.
| Competitor | Where they compete | Threat (our reading) |
|---|---|---|
| Applied Materials, Inc. | dielectric and metals deposition; etch | High |
| ASM International | ALD and PECVD | Medium |
| Wonik IPS | ALD and PECVD | Medium |
| Hitachi, Ltd. | etch | Medium |
| Tokyo Electron, Ltd. | etch and wet clean | High |
| Screen Holding Co., Ltd. | wet clean | Medium |
| Semes Co., Ltd. | wet clean | Medium |
Growth opportunities
Lam’s growth opportunities are tied to higher process complexity in semiconductor manufacturing. Three-dimensional device structures, advanced patterning, new materials, backside power delivery and advanced packaging can require more deposition, etch, clean and plating steps per wafer. Its addressable applications span memory, foundry logic, advanced packaging and support for the installed base.
Management said on the call that preliminary calendar-2027 wafer-fabrication-equipment spending was expected to exceed $200 billion, with percentage growth led by DRAM, followed by leading-edge foundry logic and NAND. Management also said that foundry logic and DRAM accounted for approximately 80% of year-to-date systems-revenue growth in calendar 2026.
For NAND, the company expects most of a previously identified $40.0 billion upgrade opportunity to occur before the end of 2027. Management said that each percentage-point shift of NAND bits toward SLC-class devices would require approximately 2.00% more installed wafer capacity to meet the same bit demand.
Lam expects cumulative Aether-related revenue of approximately $2.5 billion by the end of the decade. Aether is ramping in HBM high-volume manufacturing, with further potential uses in DRAM and foundry logic. In advanced packaging, Lam has shipped panel-plating systems to more than 20 customers worldwide. The company also expects Customer Support Business Group revenue to grow over 15% year over year in calendar 2027.
Management said that cleanroom availability and supply-chain constraints could limit how much industry demand is met in calendar 2027.
- $17.2BFY2022
- $17.4BFY2023
- $14.9BFY2024
- $18.4BFY2025
- $23.2BFY2026
Structural risks
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Semiconductor-equipment demand is cyclical and depends on chip makers’ capital spending, which in turn depends on current and expected demand for integrated circuits. Industry demand has historically changed rapidly.
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Revenue is concentrated among a limited number of large customers. Customer consolidation, alliances, order timing, cancellations, payment delays or a material reduction in orders can affect shipments, revenue, cash flow and profitability.
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Rapid changes in semiconductor processes require continued development of new and enhanced tools. Competitors may develop comparable or superior products, adapt more quickly, or retain customers whose equipment has already been qualified.
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Global operations expose Lam to export controls, tariffs, trade barriers, sanctions, foreign-exchange movements and political or economic conditions. Export-license requirements and other regulatory changes can restrict sales of equipment and spare parts to customers in China.
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Sole-source components, supplier capacity limits, outsourced manufacturing and logistics disruptions can raise costs, delay shipments or constrain Lam’s ability to meet customer demand. Management said on the call that cleanroom space and certain component constraints could continue to limit industry supply in calendar 2027.
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The business relies on technology, data, intellectual property and sensitive customer information. Cybersecurity incidents could disrupt products, services or operations; impair manufacturing processes; expose confidential information; or lead to claims and reputational damage.
Bottom line
Our reading
Our reading: Lam is a semiconductor-equipment and service business whose systems are embedded in customers’ wafer-production workflows, with recurring activity from spares, upgrades and service alongside new-tool sales. Its position rests on process know-how across deposition, etch and clean, a global installed base and the costly qualification of production equipment. Demand remains exposed to customer capital-spending cycles, concentrated customers, global trade restrictions and current supply constraints, while more complex memory, logic and packaging processes expand the applications it serves.