Die ejector
US8250742B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jan 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53274
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A die ejector comprises a chamber which can be subjected to vacuum and comprises a cover plate having a hole, a plurality of plates which are arranged in the interior of the chamber, protrude into the first hole and are jointly and also individually displaceable in a direction extending perpendicularly or in an oblique way in relation to the surface of the cover plate, and drive means in order to displace the plates. The drive means comprise a drive mechanism which comprises a motor and a pin which can be moved along a predetermined path and which is movable by the motor between two positions back and forth. Each of the plates comprises a path-like opening. The path-like opening is different from plate to plate in such a way that the plates are displaced in a predetermined sequence in the mentioned direction when the pin is moved along the path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.