Samsung HBM3E now Qualified at NVIDIA; Micron sold out through 2026
Silicon Analysts Weekly for the week of 2026-09-14 to 2026-09-21: Samsung HBM3E now Qualified at NVIDIA; Micron sold out through 2026. A sourced, provenance-marked briefing on AI-chip supply-chain and pricing movements — HBM spot prices, wafer pricing, foundry and CoWoS capacity, per-chip bill-of-materials cost, and HBM qualification status — derived from public data and human-reviewed. Part of the Silicon Analysts semiconductor data layer.
The take
Samsung's HBM3E qualification at NVIDIA is the week's sharpest development: it ends a prolonged single-vendor dependency and gives system builders a second qualified source heading into a supply-constrained 2026. Micron remains sold out through year-end, and Citi's 30–35% demand vs. 19–22% supply growth forecast through 2028 means that second source matters immediately. Readers tracking B200/Blackwell pricing should note that memory availability — not just CoWoS — is now a binding constraint.
TSMC CoWoS capacity — ▼ now ~75,000 wafers per month in 2025, expanding to ~130,000 wafers per month by end of 2026 (was ~141,000–170,000 wafers per month in 2027 (with some plans citing up to 200,000 by…) (source)
TSMC CoWoS capacity — now ~120,000–130,000 wafers/month by end-2026 (was Q4 2026 ~130,000 wafers/month (range 120,000–140,000)) (source)
TSMC CoWoS lead time — ▲ now 2026 52–78 weeks (was 52 to 78 weeks) (source)
SK Hynix HBM bit share — ▲ now Q1 2026 ~56–58% (was 2026 ~50-62%) (source)
TSMC N5 ramp — N5 capacity declining from ~180k → ~150k → ~130k wafers per month through 2026 (source)
TSMC N3 ramp — ▲ now ~170k–180k wafers per month in 2026 (was ~150k wafers per month) (source)
Supply-chain & pricing signals
US-China Tech War Hardens: China's Big Fund Expands to $35B for Chip Autonomy — China's rare earth export controls (January 2026) and expanded Big Fund ($35B vs. initial $20B) signal permanent bifurcation of semiconductor supply chains. US-China trade restrictions (NVIDIA's $400M H200 charge, MP Materials blacklist) force duopoly fragmentation and raise costs for global chipmakers accessing both markets. (International Finance / Cato Institute) · _In our data:_ NVIDIA — 15 developments tracked this quarter · NVIDIA storyline
Micron HBM supply sold out through end of 2026; demand-supply gap widening — Critical supply constraint on HBM production through 2026 will elevate pricing power for memory suppliers and create bottlenecks for AI accelerator manufacturers. Citi forecasts demand growth of 30-35% through 2028 while supply expands only 19-22%, structurally supporting elevated memory margins. (TrendForce/Market Analysis) · _In our data:_ Micron — 4 developments tracked this quarter · Micron storyline · HBM price by generation · HBM market share by vendor
US-China rare earth controls escalate; Beijing restricts shipments to US firms — China's rare earth export restrictions since August 2026 create supply chain friction for US semiconductor equipment and materials suppliers. Treasury-level talks scheduled for September 22-23 signal escalation; 80% drop in Japan rare earth exports indicates collateral damage to allied supply chains. (TechTimes/Reuters) · _In our data:_ supply chain storyline
hbm3e-contract-prices-surge-20-for-2026-tsmc-cowos-capacity-set-to-double-by-202-2026-09-19 — was HBM3E Contract Prices Surge ~20% for 2026; TSMC CoWoS Capacity Set to Double by 2028 → now (retracted) (Retracted (self-citation echo): source #1 was Silicon Analysts' own 2026-09-18 brief, picked up as a Tavily news result. The headline figure)
cowos-capacity:End 2025 (agent row 797, sort key 202500):cowos-total row — was 65,000 wafers/month (Projection, TrendForce Dec 2024, agent median of 2 hosts) → now removed (Row removed by owner ruling on 2026-09-19. The 2026-09-13 market-data sweep auto-applied a second End 2025 point for cowos-total with value)
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