Stopping the Dust: Heating for Class 100 Cleanrooms
When you’re running a Class 100 cleanroom, you can’t afford a single mistake. One tiny flake of dust or a bit of outgassing from a heater, and your semiconductor or medical device yield just tanks. It’s frustrating. You spend all this time on precision, only to have a cheap heating element ruin the batch. That’s why we switched things up. We use high-purity synthetic quartz infrared lamps and gold-coated reflectors to keep things spotless. The deal with gold reflectors Most people use aluminum reflectors. They’re fine for a while, but then they oxidize. That oxidation turns into microscopic dust that drifts right into your production zone. Not great. We use a vacuum-deposited gold layer instead. Gold doesn’t oxidize. Period. Plus, it bounces about 98% of that infrared radiation straight back at your workpiece. You get a ton of heat exactly where you want it, without wasting energy heating up the air around it. Why quartz matters The bulbs themselves are made from high-purity fused quartz. It’s tough. It handles those brutal temperature swings without cracking or shedding silica particles. Since the tungsten filament is sealed inside that quartz envelope, you don’t have to worry about the “burn out” you see with open-element heaters. It just stays clean. A quick heads-up on the power Here is the catch: these things are powerful. Because the gold reflector is so efficient at concentrating heat, you can usually dial back your power input and still hit your target temperature. But you have to keep a close eye on your surface temps. Things heat up fast. If your PID controller isn’t tuned for that kind of speed, you might accidentally scorch your substrate. Getting it running We built these to be simple drop-in replacements for your current IR banks. Whether you’re drying wafers or curing adhesives, the goal is to stop contamination before it starts. No flaking. No fumes. Just clean, direct heat.