Photoresist baking lamp

Wed, 17 Jun 2026 15:59:33 +0800

Out on the lithography floor, you know how it goes. A soft bake that drifts even a degree or two and your critical dimension control starts to wander. Scumming shows up, and nobody has time for that. Meanwhile, wafers queue up, burning through thermal budget while the clock keeps ticking. We built our photoresist baking lamps to stop living on the edge. What matters technically We run short-wave halogen quartz lamps with NIR emission, dumping energy straight into the photoresist. You get a sub-second ramp, tight control of thermal budget, and wafer-level uniformity within ±0.1°C across 300 mm. The system sits in Class 1–100 cleanrooms and adds zero particles—thanks to in-situ monitoring and a sealed, low-outgassing design. Repeatability holds across lots, shifts, and lamp age, and in high-volume lines we keep it running 24/7 with zero unplanned downtime. Why it works in soft bake and hard bake is simple: temperature accuracy sets the photoresist profile, adhesion, and the etch selectivity that follows. The lamps cut bake time, so queue-induced defects drop and line width stays stable. Energy use goes down because the heat goes where it should—into the resist—not into warming the chamber. Maintenance intervals stretch, too, since the lamp architecture avoids hot spots and the thermal stress that comes with them. The result is higher yield, fewer rework lots, and a cycle time you can plan around. Here are a few things to keep in mind. These lamps need a clean, dry air or nitrogen purge to keep the quartz envelope free of condensates and to hold spectral stability. They’ll interface with standard OEM setups, but integration has to match the exact thermal mass of your chuck and the bake station geometry. Plan on a quick thermal soak-time adjustment during qualification—just enough to lock in that uniformity window.

Baking on Factory Direct Infrared Heating

Photoresist baking lamp