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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