Solder mask isn’t just cosmetic, it plays a big role in preventing defects during both fabrication and assembly. A few takeaways from our DFM webinar: Solder mask web: Always allow at least 4 mils. Anything tighter requires a special conversation with your fabricator. Color choice: While black solder mask with red silk looks sharp, it’s far harder to process. Black requires much more exposure energy, leading to uneven curing, higher defect risk, and more headaches in manufacturing. Best p...
