On the 300mm line, those rinse-induced thermal swings will drift your photoresist profile before the next bake. We built a waterproof infrared rinse lamp to lock that variability out. It holds the wafer surface at a repeatable temperature during the DI water cycles, so your critical dimensions stay in spec. What matters, technically The lamp runs in the short-wave infrared band, coupling efficiently into water and silicon for fast, surface-dominant heating. The quartz envelope and sealed IP67 housing are spec’d for Class 1–100 cleanrooms—no outgassing, no particle spikes. Across the illuminated zone, wafer-level uniformity holds at ±0.1°C, and lot-to-lot repeatability stays consistent. Control is direct, with closed-loop feedback on the lamp body. That means stable output even when line voltage wanders. Why it works in the rinse station Rinse stations are where thermal budget quietly gets eaten. With this lamp, rinse temperature no longer forces you to compensate in soft bake, and the hard bake window tightens up. You see fewer rework lots, lower scrap, and stable CD control through lithography. Heating is on-demand and localized, so you’re not wasting energy heating bulk water. Reliability is field-proven: units run 5,000+ hours with less than 5% output drop, which cuts unplanned downtime and trims spare inventory. What you need to know up front The lamp is engineered for vertical or horizontal mounting over the rinse zone, and it needs a dedicated power and control interface matched to the wet bench. Keep clearance to the wafer path so you don’t create shadowing. There’s a brief warm-up to reach thermal setpoint—plan the ramp into the process flow so you don’t build in idle time.