Twin tube gold coated lamp

Mon, 22 Jun 2026 19:06:45 +0800

On the fab floor, you know the drill. A 0.3°C drift in bake temperature shifts the photoresist profile by nanometers, and that shows up as linewidth variation across the wafer. You run the same recipe, yet yield slips anyway. The bake step isn’t just heating—it needs repeatability. What matters under the hood We built our twin-tube gold-coated lamp around short-wave infrared emission. The gold-coated quartz envelope reflects heat back into the process zone, so thermal efficiency improves and hot spots back off. You get ±0.1°C uniformity across the wafer plane, which keeps soft bake and hard bake profiles tracking the recipe within tolerance. Cleanroom-compatible materials and construction keep particle generation down, so it plays nicely in Class 1–100 environments. Output stays stable over thousands of hours, and the spectral output is controlled to respect the photoresist thermal budget. Why this matters in lithography The bake step sets adhesion, pulls out solvent, and anchors critical dimension control. With ±0.1°C control, overlay error and CD spread shrink. Rework drops, and qualification windows tighten. Better thermal efficiency cuts energy draw and stabilizes chamber conditions, which shortens warm-up and smooths cycle time. The lamp runs 24/7 with predictable maintenance intervals, so unplanned downtime takes a hit. You end up with fewer scrap lots, more consistent wafer-to-wafer results, and a process that holds spec shift after shift. A few shop-floor notes The gold coating is tuned for high reflectivity and durability, but it needs careful handling and cleaning to avoid surface damage. **Match the lamp to the reflector geometry and power supply.**Mismatched fixtures will degrade uniformity. Expect a warm-up period to hit thermal equilibrium, and schedule periodic output verification to keep repeatability across the life of the lamp.

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Twin tube gold coated lamp