Keeping Your IR Heating Clean Enough for Class 100
If you’re running a Class 100 cleanroom, you already know the nightmare of outgassing. One tiny piece of debris shedding from a heating element and your whole production line is compromised. In a semiconductor fab, standard IR lamps usually aren’t cut out for the job. They tend to break down under high heat, spitting out microscopic particles right where you don’t want them. The Secret is in the Quartz That’s why we stick with high-purity synthetic quartz for our shields. Standard glass just isn’t clean enough; it has impurities that turn into gas when things get hot. Our quartz shields act like a bodyguard for your workpiece. They keep the tungsten filament locked away so it doesn’t react with the air, which means no metallic dust drifting toward your wafers. Why Quartz Actually Works It’s all about how the material handles the heat. Quartz doesn’t warp or crack when you crank up the temperature quickly. Plus, it lets short-wave infrared radiation pass right through. The heat goes exactly where it needs to go—into your target—instead of getting trapped in the shield. But here is the catch. Quartz is chemically stable, but it’s a magnet for surface grime. If a tech touches the glass with bare hands, those skin oils bake right into the surface. This creates “hot spots” that can pop your tube way sooner than it should.Seriously, use lint-free gloves. Every single time. Getting Them into Your Fab We designed these to be simple drop-in replacements for your current lamp arrays. We keep the tolerances tight so they fit snugly. This isn’t just for stability—it stops air turbulence from kicking up dust in your workspace. One last tip: keep an eye on your power supply. If your voltage spikes, the filaments will flicker. That leads to uneven heating across your workpiece, and that’s a headache you just don’t need.