Quartz glass shield for fab lamp

Wed, 29 Jul 2026 10:40:08 +0800

Stop Wasting Your Watts: A Better Way to Handle Fab Lamp Heat

In a semiconductor fab, every wasted watt is basically just throwing money away. When you’re running a lamp, you want every bit of that infrared energy hitting the wafer. Period. That’s why we use gold-coated quartz shields. Without them, your energy just bleeds out into the lamp housing. With them, you’re forcing that heat back where it belongs: right on the target. Why gold? Here’s the thing about standard quartz—it lets radiation wander off in every direction. But when you add a high-purity gold coating, you’ve basically built a wall that the infrared spectrum can’t get through. Instead of your lamp heating up the surrounding air or the machine frame, the gold layer bounces those photons straight back. You get a much tighter focus. It means more heat density on the wafer, but your electrical bill stays exactly the same. The grit behind the glass We stick with high-purity quartz because it can take a beating. These lamps cycle on and off rapidly, and that creates a massive amount of thermal shock. You need a shield that won’t crack or warp under pressure. And the gold isn’t just for show. It doesn’t oxidize. If you tried to save a few bucks with a cheaper metal, you’d see the coating start to flake or peel after a few hundred hours. Not exactly the kind of maintenance you want to deal with. One thing to watch out for Now, there’s a trade-off. Because the gold shield is so good at reflecting heat, that energy has to go somewhere. It often pushes back toward the lamp tube itself, making it run hotter than it would in an open-air setup. Before you swap things out, double-check your cooling fans or water-jackets. You want to make sure they can handle that extra heat load around the lamp ends. If you don’t, you’re looking at filaments burning out way sooner than they should.

Glass on Infrared Heat Element Corporation

Quartz glass shield for fab lamp

Stop Wasting Your Watts: A Better Way to Handle Fab Lamp Heat