Apparatus for reversing lead frame
US6703693B2 · kind B2 · utility
0Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An apparatus for reversing upper and lower surfaces of a lead frame which passes through a silver-plating process in a lead frame manufacturing process includes at least one guide rail having a curved portion for guiding the lead frame to be fallen down and reversed along an arc of the curved portion, and a conveying roller provided under the guide rail to horizontally convey the fallen lead frame. Thus, since the lead frame is reversed through a specific structure without use of any robot, the malfunction problem of the prior art is solved and costs are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.