Thermocompression welding device
US4053096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jun 25, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/14
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A thermocompression welding device including a welding head having two tools for automatically and simultaneously effecting welds between a connecting wire and a pair of contact areas, one on a semiconductor chip and one on a housing for the chip. The weld head is transversed between consecutive weld positions using an X-Y table. The apparatus provides automatic adjustment of connecting wire length, and matched automatic adjustment of weld head separation, corresponding to different contact area spacings and automatic orientation of the welding head to correspond to different orientations of the pairs of contact areas. Preprogrammed lengths of wire are fed to the welding head from a continuous coil and bent into position for simultaneous engagement by both welding tools, the wire being severed adjacent one of the welds immediately following each welding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.