Vibration-induced die detachment system
US7757742B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Oct 23, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1983
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A die is detachable from an adhesive tape on which the die is mounted with a die detachment tool comprising a vacuum enclosure that is operative to provide a vacuum suction on the adhesive tape. One or more ejector pins are housed in the vacuum enclosure and are projectable from the vacuum enclosure for lifting the die and adhesive tape. A vibrational tool is housed in the vacuum enclosure adjacent to the ejector pins and it is projectable from the vacuum enclosure to contact a portion of the adhesive tape at which the die is located. The vibrational tool is further operative to oscillate the adhesive tape and die for promoting delamination of the die from the adhesive tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.