Where are BGAs used most?
Prevent PCB overheating: choose heatsinks by material/geometry, Optimize SMT stencil thickness (0.1-0.2mm), design apertures to prevent bridges, apply coatings for fine-pitch components, and maintain stencils to extend lifespan for flawless solder paste deposition.
What are the different types of PCB surface finishing?
Choose the right PCB surface finish to avoid solder failures: HASL for low-cost prototypes, OSP for quick assembly, ENIG/ENEPIG for RF/high-reliability. Balance cost, signal needs, and lead time.
