Industry Analysis
The sustained growth of g/i-line photoresists in advanced packaging reflects the industry’s urgent pivot beyond transistor scaling as Moore’s Law decelerates. Technically, thick-film resists enable high-density RDL and TSV processes, directly driving co-optimization of coat-develop tracks and copper pillar fabrication—while their compatibility with KrF steppers in Fan-Out packaging slows EUV’s encroachment into back-end processes. Regulatory tightening by the U.S. and Japan on photochemical exports is forcing TSMC, Samsung, and Chinese OSATs to fast-track secondary suppliers, raising qualification barriers for smaller material vendors. In the competitive arena, Tokyo Ohka and Shin-Etsu leverage equipment-material co-tuning capabilities as moats, while SK Materials exploits HBM3e packaging demand to infiltrate supply chains. Over the next 18 months, each generational leap in AI chip stacking density will force quantum jumps in resist resolution and etch resistance, igniting a race for bespoke formulations—not just a materials battle, but a strategic grab for packaging IP dominance.
This page displays AI-generated summaries and metadata for research purposes. Original content belongs to the respective publishers.