Worldwide Semiconductor Manufacturing Services - Outsourced Semiconductor Assembly and Test Market Shares, 1H25: Vendor Ranking and Dynamic Observations

This IDC study examines the worldwide outsourced semiconductor assembly and test (OSAT) market shares in 1H25 and reviews the forces and dynamics that impact the market."The OSAT market demonstrated outstanding performance in the first half of 2025, fully propelled by the AI wave. Particularly in the advanced packaging segment, demand has shifted from 'strong' to 'explosive'," said Galen Zeng, senior research manager at IDC. "At the same time, a new round of U.S. export control policies unexpectedly brought a large number of high-end orders to Taiwan OSAT vendors. Looking ahead to the second half of 2025, the OSAT market is expected to grow by 9.2% to reach US$45.3 billion for the whole year, with strong demand for AI servers and stockpiling needs for new laptop and smartphone launches."