FOUP (Front Opening Unified Pod) dryer

Tue, 30 Jun 2026 01:29:28 +0800

On the lithography floor, a FOUP rolls in still carrying a thin water film from the last clean. If the soft bake starts drifting, the photoresist profile shifts, and your critical dimension control slips before exposure even begins. You need a FOUP dryer that strips moisture and locks temperature with repeatability—no guesswork. What matters under the hood We run medium-wave infrared for fast, direct heating, without blowing particles around. Across the batch, wafer-level uniformity stays within ±0.1°C, so every wafer sees the same thermal budget in both soft bake and hard bake. Cleanroom Class 1–100 compatibility comes from sealed airflow paths and low-outgassing materials, keeping particle counts down. The heater is sized and tuned for 24/7 duty, and we track reliability the way we always do—by uptime and maintenance intervals, not by marketing. Why it plays in FOUP-to-track In a FOUP-to-track flow, the dryer tightens the bake cycle while it stabilizes temperature. Better repeatability cuts shot-to-shot variation in photoresist thickness and line width, which means higher yield and less scrap. Direct IR coupling and a short thermal ramp keep energy use down, and the process gets less twitchy when ambient humidity swings. The upshot is predictable performance: consistent bake profiles, fewer reworks, and throughput that doesn’t yo-yo. What you actually need to watch Medium-wave IR heats fast, but it demands tight control of distance and dwell to keep hot spots off the FOUP body. On install, match the tool interface and confirm the FOUP can take the thermal load without warping. Then run a short qualification to verify temperature mapping against your exact wafer stack and photoresist recipe.

Unified on Five-Star Infrared Heating Systems

FOUP (Front Opening Unified Pod) dryer