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Advanced Packaging (CoWoS & SoIC)

Advanced Packaging (CoWoS & SoIC) — Strategy

Updated 6/19/2026

Where Advanced Packaging (CoWoS & SoIC) is heading over the next 12 months, grounded in product-axis evidence and verbatim demand from the last 90 days. The judgment column is the engine's read — operators verify and refine.


Product trajectories

CoWoS / CoWoS-L 2.5D Interposer Packaging — 2.5D advanced packaging service · weak signal

Opportunity: CoWoS capacity is the binding constraint on AI accelerator supply: TSMC is ~doubling to ~75k wpm by end-2025, pushing reticle size to 5.5x in 2026 / 9x in 2027, and has raised prices 15-20% — yet B200 already needs 2.5x reticle CoWoS-L and NVIDIA still consumes ~60% of supply. Amkor + TSMC Peoria is the first attempt at non-Taiwan CoWoS but doesn't open until 2027-28, leaving Arizona-fabbed N3 die shipping back to Taiwan.

CoWoS is the single most-bottlenecked product in advanced packaging; TSMC is monopolist, NVIDIA is anchor customer, and Amkor is the only credible second source via the Peoria JV. Missing piece: any non-TSMC 2.5D capacity at scale before 2027.

Chiplets / UCIe Chiplet Interconnect — die-to-die interconnect & chiplet architecture · weak signal

Opportunity: Chiplet decomposition is the structural alternative to monolithic scaling and is now mainstream at AMD (IOD+CCD) and Intel; UCIe speed bumps (post 9fc46a6c) signal the open-standard interconnect race is heating, with HN demand still asking basic 'what are chiplets and how are they packaged' (e735a1ee) — i.e., the abstraction is still being formed in public.

Chiplets are the architectural complement that makes 2.5D/3D advanced packaging economically necessary; AMD and Intel are the visible bettors, UCIe is the emerging standard, but no specific UCIe IP vendor surfaces in this evidence.

What the market is asking (last 90d)

  • I'm a professional trader and this is everything I'm watching and analysing in premarket ahead of the Retail sales data. 16/01. Includes detailed breakdown of earnings reports, analyst upgrades and downgrades, and everything of value from t
  • More than 100+ 7nm Tapeouts in 2019 | 7nm+ EUV in Risk Production, Mass Production Shifts into 2020 | 5nm Risk Production Spring 2019, Ramp first half 2020 | Industry-wide 28nm Over Capacity | Smartphones to remain 4G in 2019 | TSMC is the
  • Why the "Three-Layer Cake" Is Really a TSMC Valuation Story
  • AI Daily News Rundown: 🩺 OpenAI is exploring AI tools for personal health 🧬Tech titans are trying to create engineered babies 🛡️OpenAI’s reccos to brace for superintelligent AI & more Your daily briefing on the real world business im

See the Products and Hiring modules for the full landscape and who's investing in which direction.

Get this data as JSONLast updated: Jun 19, 2026