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8 Common Errors in Surface Mount Technology (SMT)
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8 Common Errors in Surface Mount Technology (SMT)

Surface mount technology is not a zero-defect soldering process. In this article, we will look into simple defects in surface mount technology (SMT) that cause your PCB to fail and try to work out how to avoid them. Reducing such defects is the key to providing efficient PCB assembly services.

We will cover the following topics through the course of this article:

  • Surface Mount Technology Troubleshooting
    • Solder-bridging or electrical bridging
      • Potential causes
      • Possible solutions
    • Insufficient solder joints or electrical opens
      • Potential causes
      • Possible solutions
    • Solder balling
      • Potential causes
      • Possible solutions
    • Tombstoning
      • Potential causes
      • Possible solutions
    • Non-wetting or de-wetting
      • Potential causes
      • Possible solutions
    • Solder beading
      • Potential causes
      • Possible solutions
    • Insufficient fills and insufficient solder
      • Potential causes
      • Possible solutions
    • Cold solder joint or grainy joint
      • Potential causes
      • Possible solutions
    • Component spacing error