OrCAD X Resources

21. You will see all the options going right across the columns shown below, like Line Width, Neck, Differential Pair, Vias (BB Via Stagger), and Allow. 12 www.cadence.com Part 1 of 5

• Cover
• Part 1 - Introduction to Constraint Management
• What is Constraint Management?
• Problems Solved by Constraint Management
• Benefits of Proper Constraint Management
• Applications of Constraint Management
• Finding the Constraint Manager (CM)
• Understanding How the Constraint Manager Works
• Types of Constraints
• Electrical Constraints
• Physical Constraints
• Spacing Constraints
• Manufacturing Constraints
• High-Speed Design Constraints
• Understanding Net Classes, Net Groups, and Regions in PCB Design
• 1. Net Classes
• Example - Creating a Net Class
• 2. Net Groups
• Example - Create a Net Group
• 3. Regions
• Region Physical Constraint Set
• Region Spacing Constraint Set
• Manual Constraint Entry vs. Constraint Sets
• Applying The Constraint Region
• Key Differences and Implications Among Net Classes, Groups, and Constraint Regions
• Summary
• Conclusion to Part 1