Semiconductor package structure and method for manufacturing the same
US9929078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/19105
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor package structure includes a conductive structure, at least two semiconductor elements and an encapsulant. The conductive structure has a first surface and a second surface opposite the first surface. The semiconductor elements are disposed on and electrically connected to the first surface of the conductive structure. The encapsulant covers the semiconductor elements and the first surface of the conductive structure. The encapsulant has a width ‘L’ and defines at least one notch portion. A minimum distance ‘d’ is between a bottom surface of the notch portion and the second surface of the conductive structure. The encapsulant has a Young's modulus ‘E’ and a rupture strength ‘Sr’, and L/(K×d)>E/Sr, wherein ‘K’ is a stress concentration factor with a value of greater than 1.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.