Device for establishing a bonding connection and transducer therefor
US11007601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2015 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/00014
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for establishing a bonding connection, with a bonding head mounted so as to rotate about an axis of rotation, and a transducer (1) mounted on the bonding head. The transducer (1) has a piezo actuator (5) for generating ultrasonic vibration, in particular a natural ultrasonic vibration. Electrodes are (20) provided on the piezo actuator (5) in such a way that the piezo actuator (5) can be excited by an electric field in a field direction (10) transverse to a polarization direction (9) of the piezo actuator, and as a result of the excitation and of the connection of the piezo actuator (5) to the fastening section (6) and to the tool holder (3), the piezo actuator (5) carries out a shearing motion in a shearing plane (18) formed by the polarization direction (9) and by the field direction (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.