Quartz glass shield for fab lamp

Fri, 24 Jul 2026 11:50:18 +0800

Dealing with Heat in Semi Fab Lamps

Here’s the thing about infrared (IR) radiation in a fab: if you don’t keep it in check, it’s a nightmare. It doesn’t just eat up power. It turns the inner walls of your expensive machinery into an oven. When that chassis gets too hot, you’ve got a real problem. It’s a safety risk for anyone touching the machine, and it can actually warp the sensitive parts inside. To stop that from happening, we use quartz glass shields to point the heat where it actually belongs. The trick to directional heating Standard IR lamps blast energy in every single direction—a full 360 degrees. Without a shield, you’re basically wasting half your energy by heating up the equipment housing instead of the wafer. That’s why we go with high-purity quartz. It lets short-wave IR pass right through, but it acts as a wall for everything else. It pushes those stray photons back toward the target. The result? The equipment walls stay cool to the touch. Why the material actually matters You can’t just use any glass here. Ordinary glass would shatter the second the lamp hits full power. We use fused quartz because it can take a beating. It handles those wild temperature swings without cracking. But you have to be careful with the fit. If the shield is jammed too tight into the housing, it’ll stress out as it expands. Too loose? You’ll get IR leakage. It’s all about finding that sweet spot. The trade-off There is a catch, though. When you put up a shield to protect the machine walls, you’re trapping heat right around the lamp filament. If you aren’t careful, you’ll fry the lamp. Make sure your cooling fans or water jackets are actually beefy enough to handle that localized heat. And a quick tip: check your seals every few months. Fab contaminants love to cloud up the quartz over time. Once that happens, your heating efficiency tanks. Keep it clean, and it’ll keep working.

Shield on Quality Infrared Heating Products

Quartz glass shield for fab lamp

Dealing with Heat in Semi Fab Lamps