Keeping Your Class 100 Cleanroom Actually Clean
When you’re running a Class 100 cleanroom, heating is a bit of a nightmare. It’s not even about the temperature—it’s about the invisible stuff. Most heating elements are dirty. They outgas or shed tiny particles every time they heat up and cool down. We figured out a better way. We take carbon fiber filaments and seal them inside high-purity synthetic quartz. Why quartz? Because it doesn’t freak out at high temperatures. It won’t break down or leak volatile organic compounds (VOCs) into your air. Since the carbon fiber is vacuum-sealed inside the tube, no particles can leak out. You get a clean, radiative heat that won’t ruin your wafers or mess with your optical components. The speed factor These carbon fiber lamps are fast. Like, really fast. Unlike those old metal coils that take forever to warm up, these hit your target temp in seconds. That’s a huge win for your HVAC system because it doesn’t have to fight a massive, lingering thermal load. But a word of caution: watch your power density. If you cram a high-wattage lamp into a tiny space, things get hot—fast. If your mounting brackets aren’t built for the way quartz expands, the tube will crack. Use spring-loaded mounts. It lets the glass “breathe” as it heats up. Getting them installed We made these as drop-in replacements for standard IR arrays, so they’re easy to swap. We also use gold-plated or high-grade nickel connectors. Why? Because oxidation leads to arcing, and arcing creates particles. Simple as that. One last thing—and this is a big one. High-purity quartz hates skin oils. If your team touches the glass during installation without gloves, those oils bake right into the surface. This creates “hot spots” that can burn out the tube way before its time. Just make sure everyone wipes the tubes down with reagent-grade IPA before you flip the switch.