Method for welding two metallic parts by laser beam and electronic package welded thereby
US4960973A · kind A · utility
23Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Sep 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/16315
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for the welding by laser, of two metallic parts having a clearance between them. This method is characterized by a dual laser discharge operation. A first laser discharge, done with a first offset with respect to the lateral face of one part, melts a strip of metal which comes into contact with the metal of the other part. A second laser discharge, done with a second offset, smaller than the first offset, heats the two parts and forms a weld joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.