Method for ultrasonic welding with particles trapping
US9975194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C35/0261
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method of connecting two components by ultrasonic welding for producing a power semiconductor module, said method comprising the steps of: a) Aligning the components to be welded to form a welding interface; b) Aligning a welding tool to the aligned components; c) Removably arranging a trapping material at least partly encompassing the welding interface, whereby the trapping material is a foam; and d) Connecting the components by activating the welding tool. The method like described above provides an easy and cost-saving measure in order to prevent particle contamination when performing a welding process such as particularly an ultrasonic welding process sue to scattered particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.