Dual frequency power supply and transducer
US5816476A · kind A · utility
22Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | May 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3011
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The power supply may be operated during a given cycle sequentially to produce high and low frequency drive signals for operating an ultrasonic transducer for sequentially producing an ultrasonic output at the two frequencies to carry out bonding operations at two different bond sites respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.