Processing on Reliable IR Heating Elements

Rapid thermal processing (RTP) lamp

Mon, 08 Jun 2026 05:32:29 +0800

On the fab floor, you know how it goes: a half-degree drift in the soft bake shifts the photoresist profile, and that shift walks your critical dimension. The thermal budget is exacting, and there’s no room to miss. What matters under the hood We run RTP lamps with short-wave halogen heating through high-purity quartz, so the energy is fast and directional. The system holds wafer-level thermal uniformity within ±0.1°C across the whole process window, from photoresist soft bake through hard bake. Repeatability is shot-to-shot, and the closed-loop control keeps the setpoint steady under load. It’s built for cleanroom Class 1–100, with zero particle generation and low outgassing. These units live on 24/7 duty, and we’ve put in 5,000+ hours with less than 5% output drop. Why this matters where you live In lithography, a stable bake temperature is what keeps CDs on target and line-edge roughness in check. Tight uniformity means fewer edge rejects and a cleaner overall yield. Fast ramp rates cut cycle time without baking stress into the stack, and the efficiency knocks down operating cost. The payoff is fewer excursions, less rework, and output you can count on. Over in packaging, that same thermal stability gives you reliable curing and solid bond integrity, so the line keeps moving. The things you’ll want to get right The lamp is high-intensity, so your chamber interface has to match it thermally. We supply interface drawings, and we recommend a dedicated power feed with voltage stability within ±1%. Expect a short warm-up to reach steady state—plan your recipes around that ramp. Set it up properly, and you’ll get stable performance with minimal unplanned downtime.

Optical wafer processing heater

Wed, 03 Jun 2026 10:20:05 +0800

Out on the fab floor, a 300mm wafer sits, waiting for that soft bake to lock in the photoresist profile. One hot spot, one cold zone, and your linewidth control is gone. The line stops. We built this optical wafer processing heater to keep that from happening in the first place. What actually matters, technically The unit leans on short-wave infrared (SWIR) quartz emitters, dumping energy straight into the photoresist and substrate—fast, direct, and without fuss. You get wafer-level uniformity held within ±0.1°C across the active area, so those critical bake steps stay inside the thermal budget. It’s cleanroom-compatible from Class 1 to Class 100, and it generates zero particles while it runs. Temperature repeatability holds at ±0.2°C from batch to batch, and the heater keeps turning 24/7 with zero unplanned downtime. Why it fits the work we do This heater hits the four thermal pivots we live by: wafer drying, photoresist soft bake and hard bake, packaging underfill and encapsulate curing, and post-clean drying. In lithography, that tight uniformity keeps CD and profile targets on spec, which means less scrap and fewer reworks. In packaging, the fast ramp shortens the cure window without overshoot, so throughput improves. And because SWIR heats directly instead of heating a chamber, energy use drops. Here are the details you need Installation comes down to matching the tool’s mechanical envelope and coolant loops. We provide the interface drawings and connector list to make integration straightforward. Emitter life is rated to 10,000 hours. After that, output drift can start to impact uniformity unless you plan replacements. So plan the maintenance window ahead of time—don’t wait for it to show up on the floor.