Doppler Capillary
For Sensitive Metallization
Solution for ultra-low K, and sensitive metallization
DOPPLER with multiple cylindrical steps is a uniquely designed, patented capillary, engineered to enhance the ball bondability and reliability performance especially for devices with sensitive pad metallization structure configuration using gold or copper wire (e.g. BOAC, Ultra-Low K, and over-hanged dice) requiring efficient energy transfer but lesser incursions of USG/ bond power parameter and lower inertia at initial impact. Doppler capillary is designed to minimize bond pad damage due to cratering or peeling. This was made possible by higher amplification ratio at the capillary tip, higher amplitude displacement at the tip, and lower inertia at initial impact.
Optimization Guide
Features
- Apply lower bonding parameter (USG / Power) for better stability.
- Less aluminum splash out for better reliability.
- Lower impact during bonding to minimize/ eliminate pad damaged.
- Full injection molding for excellent portability.
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SENSITIVE METALLIZATION
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