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Why is placing vias too close to pads considered a PCB design mistake?

easy🧠 Conceptual Q2 of 15
PCB Design - Design Review and Testing
Why is placing vias too close to pads considered a PCB design mistake?
AIt improves thermal dissipation
BIt can cause soldering issues and shorts
CIt reduces signal delay
DIt increases mechanical strength
Step-by-Step Solution
Solution:

  1. Step 1: Understand via placement near pads

    Vias close to pads can interfere with soldering and cause shorts.

  2. Step 2: Identify the impact of close vias

    Close vias may wick solder away or create unintended connections.

  3. Final Answer:

    It can cause soldering issues and shorts -> Option B

  4. Quick Check:

    Via placement near pads = Soldering issues and shorts [OK]
Quick Trick: Keep vias away from pads to avoid solder problems [OK]
Common Mistakes:
MISTAKES
  • Placing vias too close to pads
  • Ignoring solder mask clearance
  • Overusing vias near components

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