UBS Japan Semiconductor Packaging Industry Update: Record-High Package Substrate Shipments in March
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UBS has released an update on the Japanese semiconductor packaging industry, highlighting that package substrate shipments reached a record high in March 2026, with year-over-year growth exceeding 20%. This robust expansion is primarily driven by surging artificial intelligence and high-performance computing demand, which continues to propel high-end substrate growth, particularly for flip-chip ball grid array products.
Simultaneously, traditional substrate categories, such as BT substrates, are experiencing a moderate recovery. This rebound benefits from inventory restocking across the smartphone and automotive electronics supply chains. Industry inventory levels have largely normalized, and major suppliers report capacity utilization rates recovering above the 90% threshold. Japanese packaging equipment orders also grew 15% sequentially in the first quarter of 2026, signaling a renewed capital expenditure cycle.
On the materials front, ABF substrate supply remains tight, though newly added capacity is gradually coming online. UBS maintains a positive structural outlook for Japanese packaging equipment and materials suppliers, citing significant structural growth opportunities tied to the global AI wave. However, the report notes that yen exchange rate fluctuations require close monitoring, as they could materially impact the earnings trajectory of export-oriented enterprises. The update does not include specific ratings or target prices.