01 Growing Adoption of Capillary Underfill Materials for Chiplet-Based Architectures Semiconductor packaging companies are increasingly adopting capillary underfill materials to support the transition toward chiplet-based architectures, where multiple dies require strong mechanical bonding and enhanced thermal reliability. AMD's EPYC and Instinct processors increasingly utilize chiplet-based designs, driving demand for high-performance underfill materials that improve package durability and interconnect reliability. This transition is accelerating the development of advanced capillary underfills with improved flow characteristics and long-term reliability.
02 Expansion of Underfill Solutions Compatible with Fan-Out Wafer-Level Packaging (FOWLP) Underfill manufacturers are expanding solutions compatible with Fan-Out Wafer-Level Packaging (FOWLP) as semiconductor packaging transitions toward thinner, high-density, and high-performance package designs. ASE Technology continues to expand its fan-out packaging capabilities for advanced semiconductor applications, increasing demand for underfill materials compatible with fine-pitch wafer-level packages. This transition is driving the development of underfill solutions with improved adhesion, low warpage, and high reliability for next-generation FOWLP applications.
01 The advanced packaging underfill market forecasts continued investment activity driven by increasing adoption of chiplet-based architectures, 2.5D/3D packaging technologies, and high-performance computing applications. Investors are focusing on companies expanding advanced materials production, developing next-generation underfill formulations, and strengthening R&D capabilities to enhance package reliability, thermal performance, and manufacturing efficiency, supporting continued innovation across the semiconductor packaging ecosystem.
02 Key Investment and Funding Activities in Advanced Packaging Underfill Market, 2025–2026 Company Funding/Investment (USD) Details TSMC USD 165 billion (Expanded US Capital Investment Program) In March 2025, TSMC announced the expansion of its total US investment to USD 165 billion. The investment includes three additional semiconductor fabrication plants, two advanced packaging facilities, and an R&D center in Arizona to strengthen advanced packaging capabilities for AI and high-performance computing applications. FUJIFILM Corporation USD 27 million (Capital Investment) In February 2025, FUJIFILM announced a JPY 4 billion (approximately USD 27 million) investment to expand semiconductor materials manufacturing in Belgium. The investment will increase production capacity for CMP slurries and other advanced semiconductor materials supporting next-generation packaging technologies.
01 2.5D/3D Semiconductor Packaging and Automotive Electronics Drive Market The increasing adoption of 2.5D and 3D semiconductor packaging technologies is driving demand for advanced underfill materials that enhance mechanical strength, thermal stability, and interconnect reliability. According to SEMI, more than 1 million 300 mm wafers per month are expected to be dedicated to advanced packaging by 2028, reflecting the rapid expansion of advanced packaging capacity worldwide. As package complexity increases, manufacturers require underfill materials with superior adhesion, stress reduction, and long-term reliability, accelerating market growth.The expansion of automotive electronics is increasing demand for advanced underfill materials that can withstand high temperatures, vibration, and long operating lifecycles. Electric vehicles and advanced driver assistance systems (ADAS) require highly reliable semiconductor packages to ensure consistent performance under harsh operating conditions. Bosch continues to expand semiconductor production for automotive applications, increasing the need for robust advanced packaging materials. This trend is driving greater adoption of high-reliability underfill solutions across automotive semiconductor manufacturing.
01 Stringent Environmental Regulations on Epoxy and Chemical Materials and Supply Chain Disruptions for High-Purity Underfill Raw Materials Restrain Market Growth Stringent environmental regulations governing epoxy resins and specialty chemical materials require underfill manufacturers to comply with stricter restrictions on chemical composition, emissions, and hazardous substances. Meeting these requirements increases formulation, testing, and certification costs while extending product qualification timelines. Manufacturers must also invest in compliant raw materials and cleaner production processes. As a result, product commercialization slows and the adoption of advanced underfill materials becomes more challenging.Supply chain disruptions affecting high-purity resins, silica fillers, and specialty additives reduce the reliable availability of critical raw materials used in advanced underfill formulations. Procurement delays and supply shortages increase production lead times and manufacturing costs for material suppliers. This limits production planning and slows the delivery of underfill materials to semiconductor packaging companies. Consequently, market growth is constrained by reduced supply chain stability and delayed adoption of advanced packaging materials.
01 Expansion of Underfill Materials for Glass Core Packaging and Hybrid Bonding Technologies Offer Growth Opportunities The expansion of glass core substrate packaging is creating significant opportunities for underfill material manufacturers, OSAT companies, and semiconductor packaging suppliers. According to Intel, glass substrates are expected to enable semiconductor packages with up to 10× higher interconnect density by 2030 compared with conventional organic substrates, driving demand for advanced underfill materials with superior mechanical stability. As glass core packaging moves toward commercialization, demand for specialized underfill solutions is expected to grow rapidly.The increasing development of underfills for hybrid bonding technologies is creating opportunities for underfill suppliers, semiconductor foundries, and advanced packaging companies. Hybrid bonding requires underfill materials with excellent adhesion, low stress, and high reliability to support fine-pitch chip interconnections. Namics Corporation continues to develop advanced underfill materials designed for next-generation hybrid bonding and advanced semiconductor packaging applications. As hybrid bonding adoption expands across AI, HPC, and memory devices, demand for high-performance underfill materials is expected to increase.
01 Balancing Fast Underfill Flow with Void-Free Package Filling and Maintaining Uniform Underfill Dispensing for Fine-Pitch Interconnects Challenges Market Growth Balancing fast underfill flow with void-free package filling remains a key challenge as advanced semiconductor packages become denser and more complex. imec is developing chiplet interconnect technologies with pitches below 10 µm, significantly narrowing underfill flow paths and increasing the need for void-free filling during package assembly. Faster underfill flow can trap air voids and reduce package reliability, requiring precise process optimization. This increases manufacturing complexity, extends qualification time, and slows the large-scale adoption of advanced underfill materials.Maintaining uniform underfill dispensing across ultra-fine-pitch interconnects is increasingly difficult as bump spacing continues to shrink. Minor variations in material flow can create incomplete filling, voids, or stress concentration, affecting package reliability and manufacturing yield. Shin-Etsu Chemical continues to develop advanced underfill materials optimized for fine-pitch semiconductor packaging, reflecting the industry's efforts to improve dispensing precision and package reliability. The need for highly precise dispensing increases process complexity and limits production scalability.