Coplanar corrector ring
US5317106A · kind A · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1991 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Oct 13, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/1815
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A corrector ring maintains the coplanarity of the tips of the leads of a quad flat pack QFP package during shipping and handling. A first snap-fit or adhesively-fixed ring member has an inner peripheral surface which engages the lower walls of the QFP package. The ring member also has an outer peripheral surface which engages the inner surfaces of the resilient leads of the QFP package. A second snap-fit adhesively-fixed ring member is held in place over the outer surfaces of the leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.