Packaging method
US9324583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jan 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3511
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a packaging method including the steps: a cementing layer is formed on a carrier board; the functional sides of chips and passive devices are attached to the cementing layer; a sealing material layer is formed on the side of the carrier board to which the chips and the passive devices are attached, and packaging and curing are performed; and the carrier board and the cementing layer are removed. Compared to the prior art, the system-level fan-out wafer packaging method claimed by the present invention first integrates chips and passive devices and then packages the chips and the passive devices together, thereby forming a final packaged product having not single-chip functionality but integrated-system functionality. Compared to current system-level packaging, highly integrated wafer-level packaging reduces such interfering factors as system-internal electric resistance and inductance, and accommodates the growing demand for lighter, thinner, shorter, and smaller semiconductor packaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.