SRD (Spin Rinse Dryer) infrared lamp

Tue, 02 Jun 2026 03:42:10 +0800

On the fab floor, the SRD cycle is where yield gets made—or quietly bleeds away. A rinse that leaves micro-droplets, or a dry that bakes stress into the wafer, turns into defects and scrap. That infrared lamp in your Spin Rinse Dryer isn’t just heat. It’s the thermal actuator that sets the drying boundary. If output drifts or uniformity falls apart, the repeatability you rely on in lithography and photoresist processing goes with it. Here’s what we built the SRD infrared lamp around: short-wave NIR emitters in a fast-response quartz envelope, tuned for a quick thermal ramp and tight steady-state control. You get wafer-level temperature uniformity within ±0.1°C across the drying window, and sub-second recovery after rinse transients. The assembly is rated for Class 1–100 cleanroom use, with low-outgassing materials and a geometry designed to cut down on particle shedding. Output stays within 1% over 5,000+ hours, and the spectral profile is matched to the absorption of water and surface films—so the energy goes into evaporation, not heating the wafer. In SRD, the lamp has to deliver repeatable heat without messing with spin dynamics or rinse chemistry. Our profile keeps the wafer inside the thermal budget that prevents photoresist reflow or pattern collapse, while clearing rinse residue clean and fast. The payoff is fewer rework lots, stable critical dimension control, and cycle times you can plan around. Energy use drops because the lamp hits setpoint quickly and holds it without overshoot, and the long emitter life trims maintenance windows and spares inventory. The lamp’s performance ties directly to SRD chamber geometry and spin speed. We match the lamp’s focal pattern to the wafer path, but if you’re retrofitting legacy SRD tools, you may need a minor change to the optics or mounting plate. Plan the install around cleanroom airflow and thermal load—the lamp runs hot, and local exhaust has to be sized to keep chamber temperature stable. Once aligned, you only need periodic output verification against a pyrometer. No recalibration. Just data.

SRD on Warm IR Patio Comfort

SRD (Spin Rinse Dryer) infrared lamp