Vacuum compatible infrared heater

Thu, 30 Jul 2026 11:34:52 +0800

Getting the Most Out of Your Heat in a Vacuum

Here’s the problem with heating silicon wafers in a vacuum: you lose your air. No air means no convection. You’re stuck relying entirely on radiation, and if you’re using standard reflectors, a lot of that precious energy just leaks right into the chamber walls. It’s a waste. To fix this, we use gold coatings. It sounds fancy, but the goal is simple: stop the leakage and shove that heat back onto the wafer where it belongs. Why gold? It comes down to how gold handles infrared light. It’s just better at it than aluminum or polished steel. By putting a thin layer of gold on the reflector housing, we keep the hardware from soaking up the heat. The result? Almost every watt your lamp pulls goes straight to the target. You get a much tighter thermal profile and your ramp-up times get a lot faster. It just works better. Dealing with the heat Since there’s no air to carry heat away, your lamps are going to run hot. Really hot. To keep them from burning out early, we use high-purity quartz and specialized filaments. And here’s the best part: because the gold coating focuses the beam so well, you can actually turn down the total power and still hit your target surface temperature. That takes some of the pressure off your vacuum pumps and cooling jackets, which means less stress on your equipment. A few things to watch out for Now, gold is amazing for energy, but it’s soft. Please, for the love of your wafers,do not scrub these reflectorswith abrasive pads or harsh chemicals. You’ll strip the coating right off. One scratch can create a cold spot on your wafer, and then you’ve got a problem. We treat the internals of these reflectors as “no-touch” zones. Also, keep an eye on your power supply. Since the gold-coated cavity is so efficient, the heat density can spike fast. If your PID loop isn’t tuned correctly, you might overshoot your temperature and warp your wafers. Just make sure your wattage matches your lamp and you’ll be fine.

Compatible on Infrared Heating Zone Solutions

Vacuum compatible infrared heater

Getting the Most Out of Your Heat in a Vacuum