Part Clamping: Vacuum vs. Mechanical

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Why is part clamping needed?

• A wire bond is made with ultrasonic vibration (often in combination with applied heat)

  • If the part is not held stationary relative to the tool, the bond either cannot be made or is poor quality
• Die bonds involve tool pressure to press the die onto the substrate
  • The substrate must be clamped on the tooling so that it does not shift relative to the part being placed, which could cause misalignment and bond failure

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part clamping


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