Lithographic cavity formation to enable EMIB bump pitch scaling
US11322444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Sep 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/381
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Embodiments include an electronic package with an embedded multi-interconnect bridge (EMIB) and methods of making such packages. Embodiments include a first layer, that is an organic material and a second layer disposed over the first layer. In an embodiment, a cavity is formed through the second layer to expose a first surface of the first layer. A bridge substrate is in the cavity and is supported by the first surface of the first layer. Embodiments include a first die over the second layer that is electrically coupled to a first contact on the bridge substrate, and a second die over the second layer that is electrically coupled to a second contact on the bridge substrate. In an embodiment the first die is electrically coupled to the second die by the bridge substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.