Good placement orients polarized parts consistently, keeps at least 0.15 mm between same-side SMD components, holds tall parts away from SMT solder areas, and places at least three fiducials per side in the corners.
- Orient polarized components (caps, diodes, ICs) consistently — reduces visual inspection errors
- Maintain minimum 0.15mm clearance between SMD components on same side
- Keep tall components (electrolytic caps, inductors) away from SMT solder areas
- Place connectors along board edges with clearance for mating and strain relief
- Position fiducial marks (minimum 3 per side) in corners, away from components and board edges