Tower Semiconductor and Semtech Expand SiGe Partnership to Boost AI…

Event summary

Tower Semiconductor and Semtech have expanded their 20-year partnership with a multi-year agreement to scale silicon germanium (SiGe) capacity for AI data center interconnects.
Semtech will invest in dedicated SiGe capacity across Tower's global fab network in the U.S., Israel, and Japan to support demand for optical and copper interconnects.
The agreement aims to address power-efficient analog connectivity for next-generation AI infrastructure, including 800G to 3.2T interconnect speeds.
Semtech recently won the Optical Component Innovation award at ECOC 2026 for its 224 Gbps per Lane TIA Family built on Tower’s SiGe technology.

The big picture

The expanded partnership between Tower Semiconductor and Semtech underscores the critical role of power-efficient analog connectivity in scaling AI data centers. As AI clusters grow, the energy cost of moving data is becoming a central constraint, driving demand for high-speed analog front ends. This agreement positions the companies to address both copper and optical interconnects, supporting the industry's transition to next-generation architectures. The strategic collaboration aims to secure long-term capacity planning and supply resilience, ensuring readiness for immediate implementation as the market evolves.

What we're watching

Technology Roadmap: How Tower and Semtech’s joint technology roadmap will secure product leadership in multi-generational AI data center interconnects.
Market Demand: Whether Semtech’s SiGe-based products will meet the anticipated demand across a broadening base of customer programs and end markets.
Supply Resilience: The pace at which Tower can install equipment and expand SiGe manufacturing capacity at its fabs to meet the growing demand.