Correct-By-Design Methodology Requires Carefully Defined Constraints

Since the dawn of PCB usage, constraints have been an important part of the design. What are the dimensions? What weight of copper? Now, constraints have become much more than just physical dimensions. The most important constraints are defined by the design requirements of differential pairs, BGAs, low voltage devices, and high-speed parallel interfaces. The cost of rework skyrockets the fu... » read more