Certified infrared curing lamp fab

Sun, 12 Jul 2026 06:23:35 +0800

Getting More Heat Onto Your Wafers

When you’re curing wafers in a fab, it’s easy to think that just cranking up the wattage is the answer. But raw power doesn’t matter if that energy never actually reaches the silicon. Most people start with standard aluminum reflectors, but there’s a catch: they soak up and scatter way too much energy. It’s wasteful. That’s why we use gold coating.

Why Gold?

It comes down to how infrared light behaves. Aluminum is fine for basic heating, but gold is on another level when it comes to reflecting IR rays. Instead of letting photons wander off and heat up the lamp housing (which does nothing for your wafer), a thin layer of high-purity gold bounces that energy exactly where it needs to go. You get a hotter target without having to stress your power supply.

Reflector for wafer curing lamp

Fri, 26 Jun 2026 01:58:49 +0800

On the line, a soft bake drifting by even 0.3°C changes the photoresist profile. You immediately see it downstream as lithography overlay errors, scrap climbing, and the schedule slipping. Wafer curing lamp performance isn’t theory—it’s repeatable temperature control and keeping particle generation out of the process. What matters, technically We built the reflector around NIR wafer curing lamps, shaping the beam so the wafer sits in a sub-millimeter uniform thermal field. The geometry targets ±0.1°C across the shot, knocking out hot spots and edge roll-off. That stabilizes the thermal budget that governs photoresist soft bake and hard bake. Material and surface finish are chosen for high NIR reflectance and low outgassing in Class 1–100 cleanrooms, so particle counts stay flat. The design repeats the same profile shot after shot, which keeps process windows predictable. Why it holds up in production Repeatability comes first—same lamp output, same wafer temperature, shift after shift. That means tighter critical dimension control, fewer rework lots, and overlay that stays stable. Energy use drops because the reflector concentrates flux where it belongs, instead of dumping wasted heat onto fixtures and shields. Reliability is practical: we’ve got units running 5,000+ hours with less than 5% output drop. Less unplanned downtime, and your curing step keeps pace with the fab. Here’s what to keep in mind Installation tolerances are tight. Lamp alignment and reflector position have to be held within the specified offsets—otherwise uniformity goes sideways. The reflector is optimized for a defined NIR spectrum; swap lamp types without re-characterizing, and the thermal profile will drift. Expect a short burn-in to stabilize output. After that, set your monitor points and lock down the SPC limits.

Curing on Enhance Your Warm IR Life

Certified infrared curing lamp fab

Getting More Heat Onto Your Wafers

Why Gold?

Reflector for wafer curing lamp