Wafer-level underfill and over-molding
US9893044B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2015 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Feb 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold includes a top portion, and an edge ring having a ring-shape. The edge ring is underlying and connected to edges of the top portion. The edge ring includes air vents. The edge ring further encircles the inner space under the top portion of the mold. A plurality of injection ports is connected to the inner space of the mold. The plurality of injection ports is substantially aligned to a straight line crossing a center of the top portion of the mold. The plurality of injection ports has different sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.