Design - Multi-board

Different boards can use different stackups or materials (e.g., high-speed laminates for processing and standard FR4 for power) tailored to their specific function. Key Design Challenges

| Interface | Pros | Cons | |-----------|------|------| | | Robust, low profile, high pin count | Cost, mechanical tolerance | | FFC/FPC cable | Flexible, cheap, dense | Fragile, limited current | | Wires (crimp/harness) | Cheap, high current, easy rework | Messy, assembly time | | Rigid-flex | Extremely reliable, saves space | Expensive, long lead time | multi-board design

Multi-board design involves dividing a complex system into smaller, manageable subsystems, each implemented on a separate PCB. These PCBs are then interconnected to form the complete system. The design process typically involves the following steps: Different boards can use different stackups or materials (e