Broadcom Ships First 2nm Compute SoC on 3.5D Platform as Shares Drop 4% YTD
Broadcom began shipping the industry’s first 2nm custom compute SoC on its 3.5D XDSiP platform to Fujitsu, offering signal density and power efficiency gains for AI clusters and broader customer shipments due in 2H ’26. However, cooling investor sentiment and skepticism over long-term profitability have pushed stock down 4% YTD.
1. Broadcom Begins Shipping 2nm Compute SoC
Broadcom has started shipping its industry’s first custom compute SoC built on a 2nm process using its 3.5D eXtreme Dimension System in Package (XDSiP) platform to Fujitsu, marking a significant deployment of Face-to-Face 3D integration for high-performance AI applications.
2. 3.5D XDSiP Platform Architecture
The 3.5D XDSiP platform combines 2.5D and 3D-IC techniques with Face-to-Face technology to enable modular stacking of compute, memory and network I/O dies, delivering superior signal density, power efficiency and low latency for gigawatt-scale AI clusters.
3. Market Impact and Expansion Timeline
Initial shipments focus on Fujitsu’s AI cluster processors, with Broadcom expanding 3.5D XDSiP-supported XPU deliveries to a broader customer base in the second half of 2026, reinforcing its competitive positioning in AI semiconductors.
4. Stock Reaction and Investor Sentiment
Despite this technological milestone, cooling investor sentiment and skepticism over long-term profitability have driven the stock down 4% year-to-date, highlighting market caution around capital-intensive AI hardware rollouts.