ASM International is a Dutch semiconductor equipment company specialising in atomic layer deposition (ALD) and epitaxy equipment. ALD is an essential process technology for manufacturing sub-5nm logic chips and DRAM memory — used in every layer of advanced semiconductor manufacturing. ASMI's deep specialisation in ALD gives it an unrivalled position in the most technically demanding process steps.
ALD: The Indispensable Process
Atomic layer deposition deposits ultra-thin, perfectly uniform films of material one atomic layer at a time — essential for manufacturing chips with features measured in single-digit nanometres. At 3nm and below, ALD is used in dozens of process steps per chip. As chips scale further, the number of ALD steps per wafer increases — structurally growing demand for ASMI's equipment independently of the capex cycle.
Logic and DRAM: The Two Revenue Pillars
ASMI serves both logic (CPUs, GPUs, AI accelerators at TSMC, Samsung, Intel) and DRAM memory manufacturers. Logic ALD tools command premium pricing due to extreme precision requirements. DRAM ALD demand is growing as memory manufacturers push to higher-capacity, lower-power designs for AI server applications.
ASM Pacific Technology Stake
ASMI holds approximately 25% of ASM Pacific Technology — a Hong Kong-listed semiconductor packaging equipment maker. This stake adds exposure to the packaging cycle and provides a natural hedge — when ASMI's front-end ALD business softens, ASMPT's back-end packaging business may benefit from increased packaging demand.
R&D Intensity: The Moat Mechanism
ASMI spends approximately 15% of revenues on R&D — significantly above the semiconductor equipment sector average. This investment maintains its technology leadership in ALD and epitaxy. Semiconductor customers qualify ASMI's tools through 2–3 year certification processes — once qualified, switching costs are prohibitive, creating sticky recurring tool purchases for each new fab generation.
Key Risks
ASMI's heavy dependence on TSMC (reportedly 40%+ of revenues) creates concentration risk. US export controls restricting sales of advanced semiconductor equipment to China directly impact ASMI's addressable market. Memory cycle downturns — when Samsung and SK Hynix cut capex — reduce equipment orders.
Cycle Performance Summary
| Parameter | Value |
|---|---|
| Exchange | Euronext Amsterdam |
| Ticker | ASMIY.AS |
| Primary Signal | Logic chip capex + TSMC capex guidance |
| Key Technology | Atomic Layer Deposition (ALD) |
| Cycle Return (2022–2024) | +95% |
| R&D Intensity | ~15% of revenues |
| ASMPT Stake | ~25% |
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