SEMI: Q1 2026 Silicon Wafer Shipments Hit 3,275 MSI, Up 13.1% Year-on-Year on AI Data Center Demand

By NineScrolls Team · 2026-04-29 · 4 min read · Industry

Story Summary

SEMI today reported that worldwide silicon wafer shipments rose 13.1% year-on-year in the first quarter of 2026 to 3,275 million square inches (MSI), up from 2,896 MSI in Q1 2025. The figures, released by SEMI's Silicon Manufacturers Group (SMG), mark the strongest year-on-year growth in the wafer market in several quarters and confirm a clear acceleration tied to AI data center buildout.

Sequentially, shipments fell 4.7% from the 3,437 MSI recorded in Q4 2025 — a decline SEMI characterized as in line with normal seasonality rather than a slowdown.

The Numbers Behind Q1 2026

The 13.1% year-on-year jump tracks against a Q1 2025 base in which shipments were just 2% above the prior year. The pace of acceleration shows the wafer industry has now fully exited the cyclical trough that compressed shipments through 2023 and most of 2024.

SEMI's silicon shipment statistics cover polished and epitaxial wafers shipped from major producers to end users, and exclude non-polished and reclaimed wafers. The metric is the cleanest leading indicator the industry has for downstream fab activity, because every additional wafer entering a fab requires the same chain of deposition, etch, lithography and clean steps further downstream.

AI Data Centers Drive the Pull

"Silicon wafer demand related to AI data centers continues to be strong, including advanced logic and memory, and also now extending to power management devices," said Ginji Yada, Chairman of SEMI SMG and Managing Executive Officer at SUMCO Corporation, in the official release.

The expansion of the AI demand signal into power management is new. Where prior quarters saw the AI pull concentrated in advanced logic (sub-3nm GPUs and accelerators) and high-bandwidth memory (HBM), Yada's commentary points to power delivery — voltage regulators, gallium nitride and silicon carbide devices used in data center power conversion — as a third leg of the wafer demand story.

Logic, Memory, and the New Power Demand

SEMI noted that the recovery is uneven across end markets. Industrial semiconductors are showing broad-based improvement as device companies finish absorbing accumulated wafer inventory. By contrast, smartphone and PC shipments were weaker in Q1 2026, partly because tighter memory supply — driven by HBM allocation decisions favoring AI accelerators — has pulled DRAM and NAND capacity away from consumer devices.

Demand for 300mm wafers remains particularly strong in advanced applications, supported by ongoing adoption of sub-3nm process nodes and continued investment in AI training and inference infrastructure. The 300mm format is the substrate of choice for every leading-edge logic, DRAM and HBM wafer shipped today.

Reading Across to Fab Equipment Demand

Wafer shipments are the upstream feedstock for every fab equipment dollar spent downstream. The 13.1% Q1 2026 jump is consistent with — and confirms — the recent equipment-side data points: SEMI's projection of 18% growth in 300mm fab equipment spending to $133 billion in 2026, Lam Research's raised 2026 wafer fab equipment (WFE) forecast of $140 billion, and ASML's 32% year-on-year jump in memory-equipment revenue last quarter.

Each MSI of shipped wafer must pass through tens to hundreds of process steps — deposition, etch, lithography, CMP, anneal and clean — before becoming a finished die. The combination of higher wafer volume and higher process step count at sub-3nm and 400-layer NAND amplifies the per-wafer equipment intensity that suppliers see.

What This Means for Plasma Processing and Thin Film Deposition

Plasma processing equipment. A 13.1% year-on-year rise in 300mm wafer starts directly translates into chamber-hour demand for plasma etch and PECVD. Each leading-edge wafer at 3nm or below sees more than 80 etch steps, with high-aspect-ratio plasma etch (HAR contact, dielectric etch, atomic-layer etch) representing the highest-margin segment. Stronger HBM and 400-layer NAND ramps expand demand for cryogenic and pulsed-plasma etch tools, where Tokyo Electron and Lam Research are racing to ship next-generation systems.

Thin film deposition systems. Higher 300mm volumes pull through every deposition modality. ALD chambers gain share for high-k gate stacks, gate-all-around channel work-function metals, and DRAM capacitor dielectrics. CVD and PECVD platforms see more demand for low-k dielectrics, SiCN diffusion barriers and 3D NAND mold stacks. PVD remains essential for copper seed, barrier metal and back-end interconnect — and for the silicon carbide and gallium nitride power devices Yada flagged as a new demand vector.

Equipment supply chain. Every additional MSI of wafer entering production multiplies demand for plasma sources, RF generators and impedance-matching networks; sputtering targets and bonded backing plates; turbomolecular and dry pumps for vacuum chambers; throttle valves and gate valves; precursor canisters, gas delivery panels and mass-flow controllers; and process monitoring hardware including optical emission spectroscopy, residual gas analyzers and wafer-level metrology sensors. The Q1 2026 print is one of the cleanest leading indicators that the entire plasma processing and thin film deposition supply chain — including chamber components, consumables and aftermarket service — is set up for another year of expansion.