Polyimide bake infrared lamp

Wed, 01 Jul 2026 12:33:47 +0800

On the lithography floor, polyimide photoresist won’t tolerate the kind of thermal control you can get away with using ordinary lamps. A soft bake that drifts even half a degree spreads your resist thickness, and a hard bake that’s off by too much leaves scum after etch. What you need is heat you can count on—fast ramp-up, rock-solid repeatability, and hardware that behaves in a cleanroom without adding particles to the line. Here’s what matters under the hood. Our polyimide bake infrared lamps lean on short-wave NIR emitters tuned to polyimide absorption. That gives you rapid, non-contact heating with low thermal inertia. Across the shot, wafer-level uniformity holds ±0.1°C, and shift-to-shift repeatability stays within ±0.2°C. These lamps run in Class 1–100 cleanrooms with zero particle generation, verified in-situ. Output stays stable over 5,000+ hours with less than 5% drop, and the system is built for 24/7 operation with a controlled cool-down that preserves thermal budget. What does that look like when the line is running? You get tighter critical dimension control and fewer lots that have to be reworked. Soft bake cycles finish in seconds, and solvent removal is predictable. Hard bake hits the right crosslink density without overbaking, so residual stress stays down and you reduce the risk of pattern collapse. Energy use drops, too, because the energy goes straight into the resist, not into heating the chamber. The result is consistent etch profiles, lower scrap, and schedules you can actually stick to. A few practical notes before you spec it in. Installation means matching the lamp footprint and the optical coupling to your coat/bake track. Commissioning is short, but you’ll want to tune ramp rates and overshoot for your exact resist stack. Because NIR intensity changes with distance, standoff has to be held to tolerance—otherwise uniformity and repeatability start to drift. Plan on periodic emitter calibration and cleanroom-compliant handling to keep particle counts flat.

Photoresist soft bake lamp

Fri, 26 Jun 2026 04:52:36 +0800

On the lithography floor, don’t treat soft bake as a warm-up. It’s the thermal step that locks in solvent content and sets photoresist adhesion. Give you a 1°C drift across the wafer—or a cold spot in the lamp map—and you’ll watch critical dimensional control slip away. Line-width roughness climbs. Defects follow.

Bake on The Infrared Heating Company

Polyimide bake infrared lamp

Photoresist soft bake lamp