http://warm-ir-heater-eco.com/en/tags/soft/ Recent content in Soft on Eco-Friendly Warm IR Heaters Hugo en-us Sun, 31 May 2026 02:55:22 +0800 http://warm-ir-heater-eco.com/en/posts/photoresist-soft-bake-temperature-ir/ Sun, 31 May 2026 02:55:22 +0800 http://warm-ir-heater-eco.com/en/posts/photoresist-soft-bake-temperature-ir/ <p><img src="http://warm-ir-heater-eco.com/images/0ea7296bcdd661f341d1983d454c4037.png" alt="Photoresist soft bake temperature IR"></p> <p>On the lithography floor, soft bake is not some warm-up lap. It’s the step that sets the photoresist solvent profile, locks in film thickness, and writes the dimensional tolerances that carry straight into exposure and development. When the bake is uneven, you don’t get a gentle drift. You get line-width variation, sidewall footing, and a yield hit that shows up right where it hurts—parametric test. Conventional hotplates can hide non-uniformity with long soak times, but wafers keep changing. Pattern density shifts, stack heights vary, and substrates keep getting thinner—each one moves the thermal load. Infrared heating, when it’s built for semiconductor discipline, pulls that mask off. It delivers heat where it needs to go—fast, and with repeatable control.</p>