Stop Wasting Heat in Your Vacuum Chamber
Here is the reality of working in a vacuum: convection is gone. You’re left with radiation, and if you aren’t careful, most of your expensive energy just disappears into the chamber walls. When you’re processing wafers, every wasted watt is basically a design flaw. That’s why we use gold-coated reflectors. It sounds fancy, but it’s actually pretty simple. We want the infrared energy hitting the wafer, not soaking into the steel. Why gold? Most people start with polished aluminum or stainless steel. They look shiny to us, but in the infrared spectrum, they’re like sponges—they absorb way too much. We swap that out for a high-purity gold layer. Gold is incredible at bouncing IR wavelengths back where they belong. It pushes the heat forward. The result? Your ramp-up times get faster and your thermal footprint stays tight. Making every watt count Maintaining a steady temperature across a 300mm wafer is a headache. It’s a balancing act. By cutting down those radiative losses with gold, you can actually turn your lamps down. You get the same surface temperature but with less power density. Your power supplies will thank you for the break. The catch (because there’s always one) Now, this kind of efficiency comes with a warning. These systems concentrate heat aggressively. If your lamp positioning is off by just a few millimeters, you’re going to see some wild thermal gradients. You can’t cut corners on your PID controllers or thermocouples—they need to be fast enough to keep up. And double-check your cooling loop. If it isn’t sized to handle the reflected heat on the periphery, you’re going to fry your seals. We design these to slide right into your existing vacuum lines. It’s about getting the heat exactly where it needs to be: on the substrate. No waste. No overheating the wrong parts. Just clean, efficient heat.