Comprehensive PCB design services and methodologies for multilayer boards, signal integrity, and component placement optimization. We discuss layout best practices, thermal management, and design rule checks to ensure manufacturability and reliable electrical performance across prototypes and production runs. Advanced techniques cover high-speed routing, impedance control, power distribution networks, and EMI mitigation strategies. Emphasis on simulation-driven validation, stackup selection, and testing plans to reduce rework, improve yield, and meet industry standards. Practical tips for documentation and fabrication are provided.