BGA Substrate Layout for Impedance-Continuous Signal Paths

The patent applies equipotentiality by designing the connection points between transmission lines, solder balls, and mounted components to maintain consistent impedance levels. The pad portions and conductor configurations are optimized to ensure that voltage potential remains stable across connection interfaces, minimizing impedance discontinuities and improving signal integrity without requiring complex compensatory wiring layouts.

The patent employs parameter changes by adjusting the physical dimensions, shapes, and configurations of pad portions and conductors to optimize impedance matching. Specific parameters such as pad size, conductor trace width, and connection point geometry are modified to achieve continuous impedance characteristics across the signal path, thereby reducing wiring layout complexity while maintaining signal integrity.

The patent merges multiple functions into unified structural elements. The pad portions serve dual purposes as both electrical connection points and impedance control elements. By combining the functions of mechanical support, electrical connection, and impedance matching into integrated pad and conductor structures, the design achieves impedance continuity without requiring separate complex wiring layouts, thereby reducing manufacturing complexity and cost.

The patent implements self-service by designing the pad portions and conductors to automatically provide impedance matching through their inherent geometric properties. The structures are configured to self-adjust the electrical characteristics at connection points, eliminating the need for additional impedance-matching components or complex wiring designs, thus simplifying manufacturing while maintaining impedance continuity.