FOUP (Front Opening Unified Pod) dryer

Mon, 22 Jun 2026 23:50:58 +0800

Out on the lithography floor, you know the drill: FOUPs come in wet after cleaning, and the clock is already ticking. If the bake is even slightly off, the photoresist skins over instead of curing properly. Suddenly, the line is chasing defects instead of yield. We built the FOUP dryer to stop that drift before it starts. What matters under the hood We hold wafer-level thermal uniformity at ±0.1°C across the full FOUP load, so every wafer gets the same thermal budget. Short-wave infrared delivers fast, direct heating with low thermal inertia, which keeps soft bake and hard bake profiles tight. The chamber is cleanroom-ready for Class 1–100, and the materials and seals are chosen to keep particle generation at zero. Repeatability comes from calibrated sensors and a closed-loop algorithm that compensates for batch mass and ambient drift. The unit runs 24/7, and field data shows zero unplanned downtime over multi-month deployments. Why it works in practice You need the photoresist solvent to leave — and only the solvent. With temperature control this precise, the bake step becomes predictable: critical dimension control tightens, scumming drops, and the defect review queue shrinks. The fast ramp cuts cycle time without blowing up the profile, and the low thermal mass design keeps energy draw down during idle and ramp. The payoff is stable lithography performance, fewer rework lots, and a line that stays on spec. Here are the practical details Installation tolerances are tight. Give the dryer a clean power feed and proper grounding to keep electrical noise off the sensor line, and run a dedicated exhaust path so Class compliance holds. It fits standard FOUP footprints, but confirm tool-to-FOUP alignment and docking interfaces with your carrier handler before rollout. Run a first calibration lot to map temperature versus position and lock the recipe in.

FOUP on Quartz IR Heating Experts

FOUP (Front Opening Unified Pod) dryer