KLA Corporation expects its advanced packaging segment to grow in the mid-to-high teens percentage range for calendar 2026, marking a shift in semiconductor capital equipment spending patterns. The company's advanced packaging business is outperforming traditional semiconductor manufacturing equipment sales as chipmakers respond to AI accelerator architecture requirements.
Advanced packaging technologies—including 2.5D and 3D chip stacking—enable higher performance and power efficiency for AI processors. These methods connect multiple chips in a single package, bypassing limitations of traditional scaling. Equipment suppliers like KLA provide inspection and metrology systems essential for manufacturing these complex structures.
Lumentum Holdings reported over 65% year-over-year revenue growth in its most recent quarter, with the company projecting quarterly revenue above $750 million next quarter. This performance indicates demand extends beyond inspection equipment to optical components used in advanced packaging manufacturing.
The growth rates suggest packaging equipment capital expenditures are accelerating faster than front-end semiconductor fabrication spending. Traditional chip manufacturing capex faces cyclical headwinds, while advanced packaging investments maintain momentum tied to AI chip deployment schedules.
Major semiconductor manufacturers including TSMC, Intel, and Samsung have expanded advanced packaging capacity over the past 18 months. TSMC's CoWoS (Chip-on-Wafer-on-Substrate) technology remains supply-constrained due to AI chip orders from Nvidia and AMD. Intel's Foveros and Samsung's X-Cube technologies target similar high-performance computing applications.
The shift creates investment opportunities in equipment suppliers with advanced packaging exposure. KLA's outlook and Lumentum's results indicate 2026 revenue visibility remains strong despite broader semiconductor industry uncertainty. Investors should monitor equipment order rates from packaging specialists like Kulicke & Soffa and ASM Pacific Technology as leading indicators.
Advanced packaging represents a structural change rather than cyclical upturn. AI accelerators require bandwidth and thermal performance that traditional packaging cannot deliver. This fundamental requirement should sustain equipment demand independent of near-term chip inventory cycles.