Abstract
Ultrasonic Transducer in the wire bonding machine is a key component to determine its bonding speed, and is demanded to be downsized with keeping high rigidity performance for high-speed bonding process. In this paper, a modeling of the ultrasonic transducer vibration and a new ultrasonic transducer with slit structure near the fixation parts is discussed. The piezoelectric element designed by an analytical model has 45% lighter weight than the conventional one. The slit type ultrasonic transducer newly proposed and simulation by finite element method has 66% lighter weight and 2.44-times higher rigidity than the conventional one. As a result, the slit type ultrasonic transducer enable 200G acceleration motion at Z direction of wire bonder from 160G by previous one and it shorten 33% of rising ultrasonic vibration time. Finally, it makes 17% faster cycle time to make wire, it has a potential to improve productivity a lot.
| Original language | English |
|---|---|
| Pages (from-to) | 176-181 |
| Number of pages | 6 |
| Journal | Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering |
| Volume | 85 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
Keywords
- Slit type wire bonder ultrasonic transducer
- Ultrasonic vibration
- Wire bonding
ASJC Scopus subject areas
- Mechanical Engineering