On the lithography floor, you know the drill: a half-degree drift across the wafer during soft bake or hard bake will quietly eat your overlay margin...

On the lithography floor, a half-degree drift in the soft bake is enough to move critical dimension by nanometers. That kind of drift turns into...

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...