I just started a new job where, after an HF etch to remove phosphor glass, the wafers have a pungent garlic smell to them. I asked my coworkers about this and they said it was "normal," but I have never encountered a wafer that had a scent. It has been my experience that where there is smell there is a contaminant so I was wondering if anyone know what the potential source of this smell may be. Nicolas Duarte