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How does combining via stitching with ground plane splits affect PCB performance?

hard📝 Scenario Q9 of 15
PCB Design - Multi-Layer PCB Design
How does combining via stitching with ground plane splits affect PCB performance?
AIt improves signal integrity by isolating noisy sections
BIt reduces the number of vias needed
CIt eliminates the need for power planes
DIt causes ground loops and increases EMI if not carefully designed
Step-by-Step Solution
Solution:

  1. Step 1: Understand ground plane splits

    Splitting ground planes isolates sections but can create loops if stitched improperly.

  2. Step 2: Analyze via stitching effect on splits

    Via stitching across splits can cause ground loops, increasing EMI and noise.

  3. Final Answer:

    It causes ground loops and increases EMI if not carefully designed -> Option D

  4. Quick Check:

    Improper stitching with splits causes EMI [OK]
Quick Trick: Avoid stitching across splits without proper design [OK]
Common Mistakes:
MISTAKES
  • Assuming stitching always improves integrity
  • Ignoring ground loop risks
  • Thinking it reduces via count

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