Technical support for wafer heating

Thu, 18 Jun 2026 01:02:14 +0800

On the lithography floor, you learn fast that a soft bake drifting even half a degree throws CD bias out of spec. And if the hard bake runs hot across the edge, you’ll see scumming that kills inspection. Wafer heating isn’t some background step. It sets the thermal budget for every layer you pattern. When uniformity falls apart, you don’t ship die — you spend your day chasing excursions. What matters, technically We build wafer heating around controlled infrared sources—short-wave and medium-wave—paired with quartz-halogen elements for stable, fast response. The spec that actually matters is repeatable uniformity: ±0.1°C across the wafer plane during the photoresist bake. Cleanroom compatibility is table stakes, so the assembly is rated for Class 1–100 environments with zero particle generation and low outgassing. The system runs 24/7 with monitored lamp health, tight power regulation, and thermal drift compensation, so the setpoint is the temperature you get, not a hope and a prayer. Here’s the payoff: you run soft bake and hard bake with the same thermal profile, and the tool holds it cycle after cycle. That kind of consistency cuts CD variation, trims rework, and protects yield. Energy use drops because the lamps heat on demand with minimal thermal mass, and the lower maintenance load keeps the scheduler moving instead of idling. In high-volume fabs, stable heating translates straight into fewer line stops and a lower cost per wafer. A few realities to plan for. The system needs a stable supply voltage and proper heat management at the lamp interface; voltage ripple shows up as temperature jitter. Installation tolerances are tight because alignment directly affects the illumination profile and, in turn, uniformity. Plan the footprint early—retrofits can be compact, but airflow and shielding have to be respected to keep particle performance where it needs to be.

Photoresist stripping support heater

Sun, 31 May 2026 23:48:33 +0800

On the lithography floor, stripping isn’t a passive pit stop—it’s a thermal process that has to do its job cleanly. You need the photoresist to lift off completely, no residue, no re-deposition, and without stressing the wafer stack. When the support heater misses the mark, the line feels it immediately. Defects creep in. Particle counts climb. And the yield sheet shows every degree of drift. We designed the photoresist stripping support heater to handle that moment with repeatable temperature control and cleanroom-ready materials. In semiconductor manufacturing, thermal behavior is process behavior—there’s no separating the two.

Support on Patio Infrared Heating Comfort

Technical support for wafer heating

Photoresist stripping support heater