Method and apparatus for picking up semiconductor chip and suction and exfoliation tool used therefor
US7632374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Nov 11, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1944
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
In an adhesive sheet exfoliation process in a pick-up operation for a thin-type chip 6 adhered to the adhesive sheet 5, a suction exfoliation tool 22 provided at its adhesion surface 22a with plural suction grooves 22b is abutted against the lower surface of the adhesive sheet 5. Then, air within the suction grooves 22b are vacuum-sucked to bend and deform the adhesive sheet 5 together with the chip 6 thereby to exfoliate the adhesive sheet 5 from the lower surface of the chip 6 due to such bending deformation. Thus, it is possible to realize the picking-up operation with high productivity without causing a problem such as breakage or crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.